[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Ubuntu 18.10 (Cosmic Cuttlefish) has reached end of life, so this bug will not be fixed for that specific release. ** Changed in: linux (Ubuntu Cosmic) Status: Fix Committed => Won't Fix -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Won't Fix Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
** Tags added: panel-artifact -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
https://cafedelites.net/cafe-delites https://cafedelites.net https://mahabharti.net https://mahabharti.net/majhinaukri -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
https://sattamatkamarket.in/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
https://lkml.org/lkml/2020/8/25/934 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Hello, ... good news! "lp1861554-2/" seems to work! I got: linux-image-5.9.0-rc1+ giving: - Linux version 5.9.0-rc1+ (khfeng@ubuntu) - /lib/modules/5.9.0-rc1+/kernel/drivers/gpu/drm/radeon/radeon.ko size: 2244937 date: Aug 17 11:19 - radeon driver still tells: 2.50.0 20080528 (see: dmesg) (shouldn't it be better to modify it's version / date ??) I tried several reboots and got NO flickering! - text screen during boot-messages: when radeon get started the screen switches resolution but continues WITHOUT flickering! - grafic screen: o.k. NO flickering! SO: "lp1861554-2/" seems to be a "good one" ! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Ok, can you please test this one: https://people.canonical.com/~khfeng/lp1861554-2/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
Re: [Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Hello, I've tested your kernel Linux version 5.8.0+ (khfeng@ubuntu) and unfortunately the screen on my system flickers again! You may watch some videos: flicker_5.8.0.mpg via https://drive.google.com/file/d/1mHsmJcgkMf7H26kQSFrhccTkdOju4APe/view?usp=sharing flicker1_5.8.0.mpg https://drive.google.com/file/d/1683YHs3O804zgX5x7wdzl7hxyi0fSjws/view?usp=sharing flicker2_5.8.0.mpg https://drive.google.com/file/d/1CETTCoRWUir4o5JxPGuoMAnl9IXfAdUD/view?usp=sharing On 12.08.20 17:40, Kai-Heng Feng wrote: > Werner, > Can you please test the kernel here: > https://people.canonical.com/~khfeng/lp1861554/ > > I'd like to see if fix for LP: #1861554 doesn't introduce a regression > on your system. > -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Hello, I've tested the khfeng-kernel Linux version 5.8.0+ (khfeng@ubuntu) and unfortunately the screen on my system flickers again! You may watch some videos: flicker_5.8.0.mpg via https://drive.google.com/file/d/1mHsmJcgkMf7H26kQSFrhccTkdOju4APe/view?usp=sharing flicker1_5.8.0.mpg https://drive.google.com/file/d/1683YHs3O804zgX5x7wdzl7hxyi0fSjws/view?usp=sharing flicker2_5.8.0.mpg https://drive.google.com/file/d/1CETTCoRWUir4o5JxPGuoMAnl9IXfAdUD/view?usp=sharing -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Werner, Can you please test the kernel here: https://people.canonical.com/~khfeng/lp1861554/ I'd like to see if fix for LP: #1861554 doesn't introduce a regression on your system. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
I still have flickering problems with the X1300, kernel 5.4, Ubuntu 20.04. $ lspci | grep Radeon 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV515/M52 [Mobility Radeon X1300] $ uname -r 5.4.0-33-generic $ lsb_release -r Release:20.04 The display is a laptop panel on a Dell Inspiron 6400. $ xrandr LVDS connected 1280x800+0+0 (normal left inverted right x axis y axis) 331mm x 207mm 1280x800 60.04*+ When the display wakes from sleep, it is "random" whether the flickering occurs or not. My workaround: use xrandr to force mode switches until the flickering goes away. For example, run the following command one or more times: $ xrandr -s 1 && xrandr -s 0 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
The patch 2e26ccb119bde03584be53406bbd22e711b0d6e6 created for this bug brokes the ATI Radeon HD3450/70 RV620 card. Please take a look at bug #1861554 and freedesktop issue here: https://gitlab.freedesktop.org/drm/amd/issues/1045 ** Bug watch added: gitlab.freedesktop.org/drm/amd/issues #1045 https://gitlab.freedesktop.org/drm/amd/issues/1045 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
I did the verification with 18.04 "Bionic" and it was o.k; see Comment# 72. But I don't have a 16.04 "Xenial" installation, so I can't verify this version. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- xenial' to 'verification-done-xenial'. If the problem still exists, change the tag 'verification-needed-xenial' to 'verification-failed- xenial'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-xenial -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
** Tags added: cscc -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Released Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Released Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
This bug was fixed in the package linux - 5.0.0-21.22 --- linux (5.0.0-21.22) disco; urgency=medium * linux: 5.0.0-21.22 -proposed tracker (LP: #1834902) * Disco update: 5.0.15 upstream stable release (LP: #1834529) - net: stmmac: Use bfsize1 in ndesc_init_rx_desc - Drivers: hv: vmbus: Remove the undesired put_cpu_ptr() in hv_synic_cleanup() - ubsan: Fix nasty -Wbuiltin-declaration-mismatch GCC-9 warnings - staging: greybus: power_supply: fix prop-descriptor request size - staging: wilc1000: Avoid GFP_KERNEL allocation from atomic context. - staging: most: cdev: fix chrdev_region leak in mod_exit - staging: most: sound: pass correct device when creating a sound card - ASoC: tlv320aic3x: fix reset gpio reference counting - ASoC: hdmi-codec: fix S/PDIF DAI - ASoC: stm32: sai: fix iec958 controls indexation - ASoC: stm32: sai: fix exposed capabilities in spdif mode - ASoC: stm32: sai: fix race condition in irq handler - ASoC:soc-pcm:fix a codec fixup issue in TDM case - ASoC:hdac_hda:use correct format to setup hda codec - ASoC:intel:skl:fix a simultaneous playback & capture issue on hda platform - ASoC: dpcm: prevent snd_soc_dpcm use after free - ASoC: nau8824: fix the issue of the widget with prefix name - ASoC: nau8810: fix the issue of widget with prefixed name - ASoC: samsung: odroid: Fix clock configuration for 44100 sample rate - ASoC: rt5682: Check JD status when system resume - ASoC: rt5682: fix jack type detection issue - ASoC: rt5682: recording has no sound after booting - ASoC: wm_adsp: Add locking to wm_adsp2_bus_error - clk: meson-gxbb: round the vdec dividers to closest - ASoC: stm32: dfsdm: manage multiple prepare - ASoC: stm32: dfsdm: fix debugfs warnings on entry creation - ASoC: cs4270: Set auto-increment bit for register writes - ASoC: dapm: Fix NULL pointer dereference in snd_soc_dapm_free_kcontrol - drm/omap: hdmi4_cec: Fix CEC clock handling for PM - IB/hfi1: Clear the IOWAIT pending bits when QP is put into error state - IB/hfi1: Eliminate opcode tests on mr deref - IB/hfi1: Fix the allocation of RSM table - MIPS: KGDB: fix kgdb support for SMP platforms. - ASoC: tlv320aic32x4: Fix Common Pins - drm/mediatek: Fix an error code in mtk_hdmi_dt_parse_pdata() - perf/x86/intel: Fix handling of wakeup_events for multi-entry PEBS - perf/x86/intel: Initialize TFA MSR - linux/kernel.h: Use parentheses around argument in u64_to_user_ptr() - iov_iter: Fix build error without CONFIG_CRYPTO - xtensa: fix initialization of pt_regs::syscall in start_thread - ASoC: rockchip: pdm: fix regmap_ops hang issue - drm/amdkfd: Add picasso pci id - drm/amdgpu: Adjust IB test timeout for XGMI configuration - drm/amdgpu: amdgpu_device_recover_vram always failed if only one node in shadow_list - drm/amd/display: fix cursor black issue - ASoC: cs35l35: Disable regulators on driver removal - objtool: Add rewind_stack_do_exit() to the noreturn list - slab: fix a crash by reading /proc/slab_allocators - drm/sun4i: tcon top: Fix NULL/invalid pointer dereference in sun8i_tcon_top_un/bind - virtio_pci: fix a NULL pointer reference in vp_del_vqs - RDMA/vmw_pvrdma: Fix memory leak on pvrdma_pci_remove - RDMA/hns: Fix bug that caused srq creation to fail - KEYS: trusted: fix -Wvarags warning - scsi: csiostor: fix missing data copy in csio_scsi_err_handler() - drm/mediatek: fix possible object reference leak - drm/mediatek: fix the rate and divder of hdmi phy for MT2701 - drm/mediatek: make implementation of recalc_rate() for MT2701 hdmi phy - drm/mediatek: remove flag CLK_SET_RATE_PARENT for MT2701 hdmi phy - drm/mediatek: using new factor for tvdpll for MT2701 hdmi phy - drm/mediatek: no change parent rate in round_rate() for MT2701 hdmi phy - ASoC: Intel: kbl: fix wrong number of channels - ASoC: stm32: sai: fix master clock management - ALSA: hda: Fix racy display power access - virtio-blk: limit number of hw queues by nr_cpu_ids - blk-mq: introduce blk_mq_complete_request_sync() - nvme: cancel request synchronously - nvme-fc: correct csn initialization and increments on error - nvmet: fix discover log page when offsets are used - platform/x86: pmc_atom: Drop __initconst on dmi table - NFSv4.1 fix incorrect return value in copy_file_range - perf/core: Fix perf_event_disable_inatomic() race - genirq: Prevent use-after-free and work list corruption - usb: dwc3: Allow building USB_DWC3_QCOM without EXTCON - usb: dwc3: Fix default lpm_nyet_threshold value - USB: serial: f81232: fix interrupt worker not stop - USB: cdc-acm: fix unthrottle races - usb-storage: Set virt_boundary_mask to avoid SG overflows - intel_th: pci: Add Comet Lake support - iio: adc: qcom-spmi-adc5: Fix of-based
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
This bug was fixed in the package linux - 4.15.0-55.60 --- linux (4.15.0-55.60) bionic; urgency=medium * linux: 4.15.0-55.60 -proposed tracker (LP: #1834954) * Request backport of ceph commits into bionic (LP: #1834235) - ceph: use atomic_t for ceph_inode_info::i_shared_gen - ceph: define argument structure for handle_cap_grant - ceph: flush pending works before shutdown super - ceph: send cap releases more aggressively - ceph: single workqueue for inode related works - ceph: avoid dereferencing invalid pointer during cached readdir - ceph: quota: add initial infrastructure to support cephfs quotas - ceph: quota: support for ceph.quota.max_files - ceph: quota: don't allow cross-quota renames - ceph: fix root quota realm check - ceph: quota: support for ceph.quota.max_bytes - ceph: quota: update MDS when max_bytes is approaching - ceph: quota: add counter for snaprealms with quota - ceph: avoid iput_final() while holding mutex or in dispatch thread * QCA9377 isn't being recognized sometimes (LP: #1757218) - SAUCE: USB: Disable USB2 LPM at shutdown * hns: fix ICMP6 neighbor solicitation messages discard problem (LP: #1833140) - net: hns: fix ICMP6 neighbor solicitation messages discard problem - net: hns: fix unsigned comparison to less than zero * Fix occasional boot time crash in hns driver (LP: #1833138) - net: hns: Fix probabilistic memory overwrite when HNS driver initialized * use-after-free in hns_nic_net_xmit_hw (LP: #1833136) - net: hns: fix KASAN: use-after-free in hns_nic_net_xmit_hw() * hns: attempt to restart autoneg when disabled should report error (LP: #1833147) - net: hns: Restart autoneg need return failed when autoneg off * systemd 237-3ubuntu10.14 ADT test failure on Bionic ppc64el (test-seccomp) (LP: #1821625) - powerpc: sys_pkey_alloc() and sys_pkey_free() system calls - powerpc: sys_pkey_mprotect() system call * [UBUNTU] pkey: Indicate old mkvp only if old and curr. mkvp are different (LP: #1832625) - pkey: Indicate old mkvp only if old and current mkvp are different * [UBUNTU] kernel: Fix gcm-aes-s390 wrong scatter-gather list processing (LP: #1832623) - s390/crypto: fix gcm-aes-s390 selftest failures * System crashes on hot adding a core with drmgr command (4.15.0-48-generic) (LP: #1833716) - powerpc/numa: improve control of topology updates - powerpc/numa: document topology_updates_enabled, disable by default * Kernel modules generated incorrectly when system is localized to a non- English language (LP: #1828084) - scripts: override locale from environment when running recordmcount.pl * [UBUNTU] kernel: Fix wrong dispatching for control domain CPRBs (LP: #1832624) - s390/zcrypt: Fix wrong dispatching for control domain CPRBs * CVE-2019-11815 - net: rds: force to destroy connection if t_sock is NULL in rds_tcp_kill_sock(). * Sound device not detected after resume from hibernate (LP: #1826868) - drm/i915: Force 2*96 MHz cdclk on glk/cnl when audio power is enabled - drm/i915: Save the old CDCLK atomic state - drm/i915: Remove redundant store of logical CDCLK state - drm/i915: Skip modeset for cdclk changes if possible * Handle overflow in proc_get_long of sysctl (LP: #1833935) - sysctl: handle overflow in proc_get_long * Dell XPS 13 (9370) defaults to s2idle sleep/suspend instead of deep, NVMe drains lots of power under s2idle (LP: #1808957) - Revert "UBUNTU: SAUCE: pci/nvme: prevent WDC PC SN720 NVMe from entering D3 and being disabled" - Revert "UBUNTU: SAUCE: nvme: add quirk to not call disable function when suspending" - Revert "UBUNTU: SAUCE: pci: prevent Intel NVMe SSDPEKKF from entering D3" - Revert "SAUCE: nvme: add quirk to not call disable function when suspending" - Revert "SAUCE: pci: prevent sk hynix nvme from entering D3" - PCI: PM: Avoid possible suspend-to-idle issue - PCI: PM: Skip devices in D0 for suspend-to-idle - nvme-pci: Sync queues on reset - nvme: Export get and set features - nvme-pci: Use host managed power state for suspend * linux v4.15 ftbfs on a newer host kernel (e.g. hwe) (LP: #1823429) - selinux: use kernel linux/socket.h for genheaders and mdp * 32-bit x86 kernel 4.15.0-50 crash in vmalloc_sync_all (LP: #1830433) - x86/mm/pat: Disable preemption around __flush_tlb_all() - x86/mm: Drop usage of __flush_tlb_all() in kernel_physical_mapping_init() - x86/mm: Disable ioremap free page handling on x86-PAE - ioremap: Update pgtable free interfaces with addr - x86/mm: Add TLB purge to free pmd/pte page interfaces - x86/init: fix build with CONFIG_SWAP=n - x86/mm: provide pmdp_establish() helper - x86/mm: Use WRITE_ONCE() when setting PTEs * hinic: fix oops due to race in set_rx_mode (LP: #1832048) - hinic: fix a bug in set
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
I've tested the kernel from http://at.archive.ubuntu.com/ubuntu bionic-proposed/main amd64 Packages linux-headers-4.15.0-55-generic Linux kernel headers for version 4.15.0 on 64 bit x86 SMP linux-image-4.15.0-55-generic Signed kernel image generic linux-modules-4.15.0-55-generic Linux kernel extra modules for version 4.15.0 on 64 bit x86 SMP linux-modules-extra-4.15.0-55-generic Linux kernel extra modules for version 4.15.0 on 64 bit x86 SMP and: NO flickering screen! So the problem seems to be solved! I don't have a cosmic / disco installation, so I can't test these versions. So I set the verification-done-bionic - tag. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- cosmic' to 'verification-done-cosmic'. If the problem still exists, change the tag 'verification-needed-cosmic' to 'verification-failed- cosmic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-cosmic ** Tags added: verification-needed-bionic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- bionic' to 'verification-done-bionic'. If the problem still exists, change the tag 'verification-needed-bionic' to 'verification-failed- bionic'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- disco' to 'verification-done-disco'. If the problem still exists, change the tag 'verification-needed-disco' to 'verification-failed-disco'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-disco -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Hi Werner, The fix for this bug hasn't been released yet, so kernel 4.15.0-54 is expected to still have the issue. A new kernel version containing the fix is planned to be published to -proposed this week and an automated comment will be added when the new version is available for testing. Meanwhile please keep the tasks as 'Fix Committed' to correct reflect their current status. Thank you. ** Changed in: linux (Ubuntu Bionic) Status: Confirmed => Fix Committed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
instead of "In Progress" I better set the Status to "Confirmed" ** Changed in: linux (Ubuntu Bionic) Status: In Progress => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Confirmed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Fix in Bionic does NOT work; see comment #65 ** Changed in: linux (Ubuntu Bionic) Status: Fix Committed => In Progress -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: In Progress Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
today I've updated the kernel to the current version 4.15.0-54 and ... the screen flickers again (!!!) while the version from https://launchpad.net/~kaihengfeng is working perfectly!!! The differences: current kernel 4.15.0-54: radeon.ko version: 2.50.0; module-size: 2342342 kaihengfeng kernel 4.15.0-52 unsigned: radeon.ko version: 2.50.0; module-size: 2343086 So the module in 4.15.0-54 seems NOT to be the same as that one corrected by Paul Dufresne / Kai-Heng Feng. And: wouldn't it be a good idea to change the radeon.ko version-number too to identify the different versions? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
** Changed in: linux (Ubuntu Bionic) Status: New => Fix Committed ** Changed in: linux (Ubuntu Cosmic) Status: New => Fix Committed ** Changed in: linux (Ubuntu Disco) Status: New => Fix Committed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: Fix Committed Status in linux source package in Cosmic: Fix Committed Status in linux source package in Disco: Fix Committed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
** Also affects: linux (Ubuntu Cosmic) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Disco) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Bionic) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Cosmic) Importance: Undecided => Medium ** Changed in: linux (Ubuntu Disco) Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Status in linux source package in Bionic: New Status in linux source package in Cosmic: New Status in linux source package in Disco: New Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
** Description changed: + === SRU Justification === + [Impact] + Screen flickers when using radeon.ko. + It's a regression, it didn't happen on Trusty. + + [Fix] + Quote the original commit log: + "Instead of the closest reference divider prefer the lowest". + + [Test] + Affected user confirms it fixes the issue. + + [Regression Potential] + Low. Only affect radeaon, and it's in upstream stable tree. + + === Original Bug Report === my laptop: HP Compaq nx9420 - my grafic card: + my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) - the screen is o.k. NO flickering in textmode, nice grafic, NO flickering + the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Bug description: === SRU Justification === [Impact] Screen flickers when using radeon.ko. It's a regression, it didn't happen on Trusty. [Fix] Quote the original commit log: "Instead of the closest reference divider prefer the lowest". [Test] Affected user confirms it fixes the issue. [Regression Potential] Low. Only affect radeaon, and it's in upstream stable tree. === Original Bug Report === my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
I've tested the kernel 4.15.0-52 (from khfeng) on my laptop and found: THE FLICKERING IS GONE! Screen is O.K. in text and graphic - mode. Console switching works too. So, Paul's bugfix seems to work! Many thanks! I found one small thing: the new radeon.ko - module identifies itself still as "... Initialized radeon 2.50.0 20080528"; same like the buggy version. So it is difficult to distinguish the "good" from the "buggy" - module. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Please test kernel here: https://people.canonical.com/~khfeng/lp1791312/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
** Changed in: linux Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Fix Released Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
The patch is included in: Linux 4.14.125 Linux 4.19.50 Linux 5.1.9 I don't have access to the laptop on which I investigated this problem anymore. But it could be tested from the built kernel packages at: https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14.125/ https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19.50/ https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.1.9/ Install linux-headers then linux-modules then linux-image (I think) In fact, testing on other ATI hardware too see not bad results happen would be... reassuring. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Launchpad has imported 36 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=108514. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2018-10-22T16:07:16+00:00 Werner-lueckel-m wrote: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) screen resolution: 1680x1050@60.1 when booting UBUNTU "14.04.5 LTS, Trusty Tahr" kernel 3.13.0-160-generic -> the screen is fine in text-mode and in grafic-mode; NO flickering. boot-messages say: [drm] Initialized radeon 2.36.0 ... BUT, when booting UBUNTU "18.04.1 LTS (Bionic Beaver)" kernel 4.15.0-36-generic -> the screen starts heavy flickering as soon as the kernel-module "radeon.ko" is loaded. The flickering continues in grafic-mode. here the boot-messages say: [drm] Initialized radeon 2.50.0 ... so: this seems to be a new version of radeon.ko. My question: - is there a method or a 'hidden flag' to switch radeon.ko-2.50 back to the good behaviour of radeon.ko-2.16? Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/comments/8 On 2018-10-22T18:14:39+00:00 Alexdeucher wrote: Any chance you can narrow down when the regression occurred and bisect it using git? Please attach your dmesg output and xorg log (if using X). Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/comments/9 On 2018-10-23T16:31:25+00:00 Werner-lueckel-m wrote: Created attachment 142154 dmesg Ubuntu14.04, Kernel3.13.0-160, radeon 2.36.0, screen O.K. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/comments/10 On 2018-10-23T16:34:59+00:00 Werner-lueckel-m wrote: Created attachment 142155 dmesg Ubuntu18.04, Kernel4.15.0-36, radeon 2.50.0, screen flickering Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/comments/11 On 2018-10-23T16:45:12+00:00 Werner-lueckel-m wrote: - I attached 2 dmesg-listings; booting Ubuntu14.04, Kernel3.13 -> screen is o.k.; no flickering booting Ubuntu18.04, Kernel4.15 -> screen flickers. - no Xorg log since the flickering happens already in text-mode - I did the following test (on Ubuntu18.04): . boot with radeon.modeset=0 (thus: disable radeon driver) -> screen o.k.; NO flickering . then sudo modprobe -v radeon modeset=1 -> and the flickering starts ... Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/comments/12 On 2018-10-23T17:07:33+00:00 Werner-lueckel-m wrote: Created attachment 142156 dmesg Ubuntu14.04, Kernel4.4.0-133, radeon 2.43.0, screen flickering ... and I found out that the screen-flickering already starts with VERSION="14.04.5 LTS, Trusty Tahr" kernel: 4.4.0-133-generic radeon 2.43.0 see the attached dmesg14.04_4.4.0-133.txt Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/comments/13 On 2018-10-24T13:29:58+00:00 Werner-lueckel-m wrote: Additional Information: - I have the same flickering screen with Debian Life CD: UBCD-life Linux version 3.16.0-4-586 [drm] Initialized radeon 2.39.0 20080528 Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/comments/14 On 2018-10-30T15:54:54+00:00 Werner-lueckel-m wrote: some more tests with different systems give the following table: sorted by radeon-version systemkernelradeon result - --- UBUNTU 14.04.5 LTS, Trusty Tahr 3.13.0-1612.36.0 O.K. puppy_tahr 6.0.5 3.14.56 2.37.0 O.K. puppy_slacko 6.3.23.14.55 2.37.0 O.K UBCD 3.16.02.39.0 FLICKER puppy_xenialpup 7.5 4.4.952.43.0 FLICKER UBUNTU 14.04.5 LTS, Trusty Tahr 4.4.0-133 2.43.0 FLICKER UBUNTU 18.04.1 LTS (Bionic Beaver)4.15.0-36 2.50.0 FLICKER so the problem seems to start with a radeon.ko driver > 2.37.0; I wonder how the radeon-version 2.38.0 would work, but, so far, I havn't found a system including it. Rep
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Being fixed in upstream https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm- next-5.2&id=2e26ccb119bde03584be53406bbd22e711b0d6e6 Maybe a candidate for SRUs too after the fix hits eoan (19.10). ** Also affects: linux via https://bugs.freedesktop.org/show_bug.cgi?id=108514 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in Linux: Unknown Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Paul, Since you already bisected the commit, please file an upstream bug at https://bugs.freedesktop.org/ Product: DRI Component: DRM/Radeon So the radeon maintainers can work on a fix. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
** Tags added: patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
** Patch added: "patch radeon-display.c for latest kernel (5.0.0rc7)" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+attachment/5240017/+files/radeon-display.patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Same problem here: Laptop is a HP 255 G6 based on AMD E2-9000e, Ubuntu is 18.04 64 bits, kernel 4.15.0-45-generic, wide monitor is LG LG 25UM58-P, 2560x1080. It does not always flicker, but it does when playing video or when using applications in full screen mode (or in general when using most of the surface of the wide screen). Monitor is connected through HDMI, other monitors with lower resolutions do not flicker. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Same laptop, same problem. Thanks for workaround using commands: xrandr ..; sleep 2; xrandr ...; -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Well, It seems to take more than 12 hours ( I did stopped it ) to compile a kernel (many features deactivated) on my atom based laptop. Will retry. But the line I wanted to comment out does not seems to exist anymore. But I found that the function to select PLL values show them before returning in a DRM_DEBUG_KMS macro. I also found that if booted with kernel parameter drm.debug=4 then KernelModeSettings related messages are added to dmesg output. So I expect to be able to compare tomorrow PLL values for the old version where the bug does not manifest to a new one where the bug manifest itself. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Indeed, the two radeon parameters for PLL mention in previous message does not seems to appear anymore in modinfo radeon. paul@paul-NC210-NC110:~/linux-stable$ git log --oneline v3.15-rc1..v3.15-rc2 | grep radeon bcddee29b0b8 drm/radeon/ci: make sure mc ucode is loaded before checking the size 8c79bae6a30f drm/radeon/si: make sure mc ucode is loaded before checking the size f8a2645ecede drm/radeon: improve PLL params if we don't match exactly v2 74073c9dd299 drm/radeon: memory leak on bo reservation failure. v2 681941c1790b drm/radeon: fix VCE fence command 7e1858f9aff7 drm/radeon: re-enable mclk dpm on R7 260X asics 277babc374f6 drm/radeon: add support for newer mc ucode on CI (v2) 1ebe92802eaf drm/radeon: add support for newer mc ucode on SI (v2) 5fb9cc4d8b16 drm/radeon: apply more strict limits for PLL params v2 6abc6d5c73b2 drm/radeon: update CI DPM powertune settings 90c4cde9d5a2 drm/radeon: fix runpm handling on APUs (v4) 57700ad1f2f2 drm/radeon: disable mclk dpm on R7 260X 8902e6f2b832 drm/radeon: Improve vramlimit module param documentation be0949f5eb9c drm/radeon: fix audio pin counts for DCE6+ (v2) 379dfc25e257 drm/radeon/dp: switch to the common i2c over aux code 25377b921b40 drm/radeon/dp: handle zero sized i2c over aux transactions (v2) paul@paul-NC210-NC110:~/linux-stable$ paul@paul-NC210-NC110:~/linux-stable$ git show 5fb9cc4d8b16 commit 5fb9cc4d8b1639b9a7487c1ee7b2b0c52877327d Author: Christian König Date: Fri Apr 4 13:45:42 2014 +0200 drm/radeon: apply more strict limits for PLL params v2 Letting post and refernce divider get to big is bad for signal stability. v2: increase the limit to 210 Signed-off-by: Christian König diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 386cfa4c194d..2f42912031ac 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -937,6 +937,9 @@ void radeon_compute_pll_avivo(struct radeon_pll *pll, } post_div = post_div_best; + /* limit reference * post divider to a maximum */ + ref_div_max = min(210 / post_div, ref_div_max); + /* get matching reference and feedback divider */ ref_div = max(den / post_div, 1u); fb_div = nom; paul@paul-NC210-NC110:~/linux-stable$ I might try to recompile kernel with that line commented out. But it has been many years I did not compile a kernel. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
From: https://kernel.ubuntu.com/~kernel-ppa/mainline/v3.15-rc2-trusty/CHANGES I see the folowing changes for radeon: Alex Deucher (13): drm/radeon/dp: handle zero sized i2c over aux transactions (v2) drm/dp/i2c: send bare addresses to properly reset i2c connections (v4) drm/dp/i2c: Update comments about common i2c over dp assumptions (v3) drm/radeon/dp: switch to the common i2c over aux code drm/radeon: fix audio pin counts for DCE6+ (v2) drm/radeon: disable mclk dpm on R7 260X drm/radeon: fix runpm handling on APUs (v4) drm/radeon: update CI DPM powertune settings drm/radeon: add support for newer mc ucode on SI (v2) drm/radeon: add support for newer mc ucode on CI (v2) drm/radeon: re-enable mclk dpm on R7 260X asics drm/radeon/si: make sure mc ucode is loaded before checking the size drm/radeon/ci: make sure mc ucode is loaded before checking the size Christian König (2): drm/radeon: apply more strict limits for PLL params v2 drm/radeon: improve PLL params if we don't match exactly v2 Christoph Jaeger (2): ... drm/radeon: fix VCE fence command Quentin Casasnovas (1): drm/radeon: memory leak on bo reservation failure. v2 The: Christian König (2): drm/radeon: apply more strict limits for PLL params v2 drm/radeon: improve PLL params if we don't match exactly v2 rings a bell for me, because I believe someone somewhere was saying that a kernel parameter speaking of PLL was fixing the problem... but people did not find PLL parameters for radeon, so people did not follow about that comment. From: https://www.x.org/releases/current/doc/man/man4/radeon.4.xhtml I see: Option "LVDSProbePLL" "boolean" When BIOS panel information isn’t available (like on PowerBooks), it may still be necessary to use the firmware-provided PLL values for the panel or flickering will happen. This option will force probing of the current value programmed in the chip when X is launched in that case. This is only useful for LVDS panels (laptop internal panels). The default is on. Also: Option "DefaultTMDSPLL" "boolean" Use the default driver provided TMDS PLL values rather than the ones provided by the BIOS. This option has no effect on Mac cards. Enable this option if you are having problems with a DVI monitor using the internal TMDS controller. The default is off. Also: drm/radeon: update CI DPM powertune settings ring an other bell, because I think I remember someone saying something about DPM in some message. Sorry for not being more specific. A similar, older fixed closed bug: https://bugzilla.kernel.org/show_bug.cgi?id=26552 ** Bug watch added: Linux Kernel Bug Tracker #26552 https://bugzilla.kernel.org/show_bug.cgi?id=26552 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Ok, I have access at "work" on a Compaq nx9420, for a few days. linux 3.15.0-rc2 is first one to flickers, but goes to busybox linux 3.15.0-rc1 does not flickers, but goes to busybox I found: mounting /dev/sda1 on /root: invalid argument and then initrd not mounting. previous version, 3.14.79: no flickers, boot to graphics mode will try to study changes for 3.15.0-rc2 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
.. as recommended I tried 3.14.79-031479-generic; giving me radeon.ko version 2.37.0 and the screen is o.k. No flickering. btw. I had the same result e.g. with "puppy_tahr 6.0.5 boot CD" which has the same radeon-version (2.37.0). My guess: the flickering-problem starts with radeon 2.39.0 upward. See my table above (a little messed-up due to lacking blanks). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
I just retried by installing headers, then reinstall kernel-generic. This time wifi works. Note that these packages won't show in Synaptic. Will show in dpkg -l|grep kernel. Use dpkg -r to remove them. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Well, I tested on my laptop with: paul@paul-NC210-NC110:~$ cat /proc/version Linux version 3.14.79-031479-generic (kernel@gloin) (gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.3) ) #20160910530 SMP Sun Sep 11 09:41:06 UTC 2016 When I used gdebi to install the kernel .deb, in the details, there were some errors. I believe this was because I did not installed headers .deb before... I would suggest you install the headers .deb before... but it work even without the headers .deb. Also gdebi said version was already installed: I am pretty sure it was not. I lost my wifi however after rebooting with that version (I plugged Ethernet wire for writing this). And I am on Linux Mint 19.1. When I rebooted, it continue to boot with old kernel, and was not showing me the menu... even if I pressed Esc and Shift. So I edited /etc/default/grub from: GRUB_TIMEOUT_STYLE=hidden GRUB_TIMEOUT=0 to: GRUB_TIMEOUT_STYLE=menu GRUB_TIMEOUT=10 but I think this could be needed only on Mint. after that, advanced options were showing, and I was able to select old kernel version. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Thanks for trying the tearfree option! (ok, it don't work) By reading: https://wiki.ubuntu.com/Kernel/MainlineBuilds I discovered: http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D which would allow to download prebuild .deb for old mwainline kernels. I am a bit sceptical if new versions of ubuntu would boot with so old versions. But it could help someone pinpoint the problem. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
I tried the glamor / tearfree - advice, but: with NO success; still flickering. And, btw.: I don't think the flickering is an Xorg-issue; it starts in "textmode" (!!) as soon as the radeon-kernel-driver loads. I think the kernel-driver does NOT read Xorg-configurations. Just for fun, I've tested different systems: System kernel radeon.ko result UBUNTU-14.04.5 3.13.0-164 2.36.0 O.K puppy_slacko-6.3.2 3.14.55 2.37.0 O.K. UBCD3.16.0 2.39.0 FLICKER UBUNTU 14.04.5 4.4.0-133 2.43.0 FLICKER UBUNTU 18.04.1 4.15.0-42 2.50.0 FLICKER So, I think the problem starts with a modification made in radeon.ko version 2.37.0 --> 2.39.0 Additionally I found a "kind of work-around": switch the mode several times! thus: - ignore flickering; start grafic mode - xrandr --output LVDS --mode 1440x900; sleep 2; xrandr --output LVDS --mode 1680x1050; - try that 2 ... 5 times until flickering stops! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Someone said: "I tried this with a Ubuntu 17.10 and could not boot. I had to use a rescue boot and remove the lines again to get it up and running." from:https://askubuntu.com/questions/794865/16-04-ati-mobility-radeon-x1600-full-resolution-flickering So, try with care! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
I guess I would rather add the two option lines (with same indentation) to: file:///usr/share/X11/xorg.conf.d/10-radeon.conf -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
The bug have been reported upstream: https://bugs.freedesktop.org/show_bug.cgi?id=108514 https://forums.linuxmint.com/viewtopic.php?t=229387 suggest the bug could be "fixed" by creating /usr/share/X11/xorg.conf.d/20-radeon.conf with: Section "Device" Identifier "Radeon" Driver "radeon" Option "AccelMethod" "glamor" Option "TearFree" "on" EndSection Someone could try? ** Bug watch added: freedesktop.org Bugzilla #108514 https://bugs.freedesktop.org/show_bug.cgi?id=108514 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Sorry, but it turned out that the flickering-issue is NOT really fixed with the upstream-kernel. Sometimes a boot again ends in a flickering screen as before. Now I have the following scenario: - boot 14.04.5 LTS with kernel 3.13.0-157 -> screen is ALWAYS o.k.; NO flickering - boot 18.04.1 LTS with upstream-kernel 4.19.0-041900rc3 -> USUALLY the screen is o.k; BUT SOMETIMES the screen flickers as before I found no special reason that may cause/avoid the flickering; just reboot and watch ... and if the screen flickers, reboot again and the screen may be o.k. ... So I replaced the tag "kernel-fixed-upstream" by "kernel-bug-exists- upstream". -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
** Tags removed: kernel-fixed-upstream ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
I tested the flickering-issue with the upstream-kernel "linux-image-unsigned-4.19.0-041900rc3-generic_4.19.0-041900rc3.201809120832_amd64.deb" and it seemed to be fixed! No more flickering. So I added the tag "kernel-fixed-upstream" to this report. ** Tags added: kernel-fixed-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.19 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19-rc3 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Incomplete Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
I attached a short video-clip (MOV03422.MPG) showing the flickering screen; that flickering continues in grafic-mode too ... ** Attachment added: "MOV03422.MPG" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+attachment/5186833/+files/MOV03422.MPG -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1791312] Re: ubuntu 18.04 flickering screen with Radeon X1600
you can find the missing logfile as attachment: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+attachment/5186052/+files/apport.linux-image-4.15.0-33-generic.s5j_wb2y.apport ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1791312 Title: ubuntu 18.04 flickering screen with Radeon X1600 Status in linux package in Ubuntu: Confirmed Bug description: my laptop: HP Compaq nx9420 my grafic card: 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV530/M56-P [Mobility Radeon X1600] (prog-if 00 [VGA controller]) attachment: the bug-apport-file Description: I start ubuntu 18.04 LTS (Kernel 4.15.0.33) in textmode; -> as soon as the kernel-module radeon.ko is loaded the screen starts flickering when starting the grafic-mode the flickering continues; so the screen is unusable. when setting the option "radeon.modeset=0" (thus: not use radeon drivers) the screen does not flicker but the resolution is limited to 1400x1050 (instead of natural 1680x1050) so I can not use this as work-around when using the old ubuntu 14.04.05 LTS (Kernel 3.13.0-157) the screen is o.k. NO flickering in textmode, nice grafic, NO flickering xrandr tells: 1680x1050 60.1 so I must stay on old ubuntu 14.04.05 ??? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791312/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
