[Kernel-packages] [Bug 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
I can confirm that brightness controll works on Lubuntu alpha2 - http://cdimage.ubuntu.com/lubuntu/releases/15.10/alpha-2/wily-desktop- amd64.iso $uname -r 4.1.0.2-generic -- 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Expired Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 From meta-arago-boun...@arago-project.org Mon Aug 10 13:51:06 2015 Return-path: meta-arago-boun...@arago-project.org Envelope-to: arch...@mail-archive.com Delivery-date: Mon, 10 Aug 2015 13:51:06 -0700 Received: from bolt10b.mxthunder.net ([208.53.48.136]) by mail-archive.com with esmtp (Exim 4.76) (envelope-from meta-arago-boun...@arago-project.org) id 1ZOu2E-00022N-Jb for arch...@mail-archive.com; Mon, 10 Aug 2015 13:51:06 -0700 Received: by bolt10b.mxthunder.net (Postfix, from userid 12345) id 3mqqFd6CLhz1x2Sq; Mon, 10 Aug 2015 13:50:53 -0700 (PDT) Received: from arago-project.org (ec2-184-73-161-183.compute-1.amazonaws.com [184.73.161.183]) by bolt10b.mxthunder.net (Postfix) with ESMTP id 3mqqFM6LBVz30LxD for arch...@mail-archive.com; Mon, 10 Aug 2015 13:50:47 -0700 (PDT) Received: from ip-10-151-46-185.ec2.internal (localhost [127.0.0.1]) by arago-project.org (Postfix) with ESMTP id 3935752A7D; Mon, 10 Aug 2015 20:50:47 + (UTC) X-Original-To: meta-ar...@arago-project.org Delivered-To: meta-ar...@arago-project.org Received: from
[Kernel-packages] [Bug 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
[Expired for linux (Ubuntu) because there has been no activity for 60 days.] ** Changed in: linux (Ubuntu) Status: Incomplete = Expired -- 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Expired Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
Kernel version reverse-bisect showed that it works with 4.0rc1 and higher. I will do a commit reverse-bisect when I have time. -- 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Incomplete Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
The default ubuntu kernel (currently 3.19.0-16) does not work for me. In /sys/class/backlight there is only intel_backlight - ../../devices/pci:00/:00:02.0/drm/card0/card0-eDP-1/intel_backlight However, with 4.1-rc3 there is acpi_video0 - ../../devices/pci:00/:00:01.0/:01:00.0/backlight/acpi_video0 acpi_video1 - ../../devices/pci:00/:00:02.0/backlight/acpi_video1 intel_backlight - ../../devices/pci:00/:00:02.0/drm/card0/card0-eDP-1/intel_backlight The first one can be used to control my LCD backlight. -- 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Incomplete Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
Stefan Burnicki, the next step is to fully reverse commit bisect from kernel 4.1-rc2 to 4.1-rc3 in order to identify the last bad commit, followed immediately by the first good one. Once this commit has been identified, then it may be reviewed as a candidate for backporting into your release. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection#How_do_I_reverse_bisect_the_upstream_kernel.3F ? Please note, finding adjacent kernel versions is not fully commit bisecting. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags removed: needs-bisect ** Tags added: needs-reverse-bisect -- 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Incomplete Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
Okay, my upstream kernel test was a little naive. When I was bisecting the problem, I noticed that my test to control the brightness failed even with kernels that worked before. So I noticed that I still had a /usr/share/X11/xorg.conf.d/80-intel.conf file with: Section Device Identifier card0 Driver intel Option AccelMethod sna Option Backlight intel_backlight # use your backlight that works here BusID PCI:0:2:0 EndSection After *removing* that file, it worked for me in the old kernel versions, so I tried the upstream kernel again and it works. So it's fixed in an upstream kernel, which is fine for me, as it seems to be pretty stable. ** Tags removed: kernel-bug-exists-upstream kernel-bug-exists-upstream-4.1-rc3 ** Tags added: kernel-bug-fixed-upstream kernel-bug-fixed-upstream-4.1-rc3 -- 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Incomplete Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
Stefan Burnicki, just to clarify, when you removed the modification, does the default Ubuntu kernel still not work? -- 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Incomplete Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
Just tested it with 4.1 rc3 but the problem remains the same. ** Tags added: kernel-bug-exists-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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Confirmed Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
Joseph Salisbury, Can you please check the Stefan's comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1399823/comments/8 -- 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Incomplete Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.1 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'. If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-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/v4.1-rc3-vivid/ ** 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Incomplete Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
Joseph Salisbury, sorry, your comment is about 4.1 rc3. I will check it too. -- 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Incomplete Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
Stefan Burnicki, the next step is to fully commit bisect from kernel 3.13 to 3.16 in order to identify the last good kernel commit, followed immediately by the first bad one. This will allow for a more expedited analysis of the root cause of your issue. Could you please do this following https://wiki.ubuntu.com/Kernel/KernelBisection ? Please note, finding adjacent kernel versions is not fully commit bisecting. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs ** Tags added: needs-bisect regression-release utopic ** 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Incomplete Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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 1454207] Re: Samsung 730U3E LCD backlight brightness control doesn't work
** Tags added: kernel-bug-exists-upstream-4.1-rc3 -- 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/1454207 Title: Samsung 730U3E LCD backlight brightness control doesn't work Status in linux package in Ubuntu: Incomplete Bug description: Fn-shortcuts work and the value in /sys/class/backlight/intel_backlight/brightness changes, but is has no physical effect. Only setting /sys/class/backlight/intel_backlight/brightness to 0 turns the LCD off, changing it to any other value turns it on again. I tried to set different boot parameters in /etc/defaults/grub GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=1 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_native_backlight=0 GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=Linux acpi_backlight=vendor GRUB_CMDLINE_LINUX_DEFAULT=quiet splash video.use_bios_initial_backlight=0 For each change, I called update-grub, restarted, and verfied the settings with /proc/cmdline. Nothing worked for me. I also tested this with the newest mainline kernel (4.1-rc2), but the bug still exists. It work with trusty and stopped working with utopic. I thought this issue would may be fixed in vivid, but it isn't. Please tell me what other information you need in order to fix this. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-16-generic 3.19.0-16.16 ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3 Uname: Linux 3.19.0-16-generic x86_64 ApportVersion: 2.17.2-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC0: stefan 1383 F pulseaudio CurrentDesktop: KDE Date: Tue May 12 13:08:51 2015 HibernationDevice: RESUME=UUID=34e06653-f31c-45ef-80ca-9eddcae5134f InstallationDate: Installed on 2015-03-10 (62 days ago) InstallationMedia: Kubuntu-Plasma-5 14.10 Utopic Unicorn - Release amd64 (20141022) MachineType: SAMSUNG ELECTRONICS CO., LTD. 730U3E/740U3E ProcFB: 0 inteldrmfb 1 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.19.0-16-generic root=/dev/mapper/kubuntu--plasma--5--vg-root ro quiet splash video.use_bios_initial_backlight=0 RelatedPackageVersions: linux-restricted-modules-3.19.0-16-generic N/A linux-backports-modules-3.19.0-16-generic N/A linux-firmware 1.143 SourcePackage: linux UpgradeStatus: Upgraded to vivid on 2015-04-26 (16 days ago) dmi.bios.date: 05/30/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P05ABW.060.130530.dg dmi.board.asset.tag: No Asset Tag dmi.board.name: NP730U3E-S03DE dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.board.version: SEC_SW_REVISION_1234567890ABCD dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD. dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP05ABW.060.130530.dg:bd05/30/2013:svnSAMSUNGELECTRONICSCO.,LTD.:pn730U3E/740U3E:pvrP05ABW:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNP730U3E-S03DE:rvrSEC_SW_REVISION_1234567890ABCD:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvrN/A: dmi.product.name: 730U3E/740U3E dmi.product.version: P05ABW dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1454207/+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
