[Kernel-packages] [Bug 1300914] Re: External screen undetected after first plug
This bug is also discussed on the freedesktop bug tracker: https://bugs.freedesktop.org/show_bug.cgi?id=88919 It seems to persist in kernel 4.3. ** Bug watch added: freedesktop.org Bugzilla #88919 https://bugs.freedesktop.org/show_bug.cgi?id=88919 -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Any updates on this issue? Still happens on 14.04 with 3.19.0-26 -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Are there any news about this issue? I can still observe it with the newest updates for 14.04.03 (3.16.0-45-generic). Switching to the greeter does not work for me as well but switching to tty and replugging the screen seems to do it. Is it probably possible to disable the counter for too many tries as a workaround? -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Yes, the problem went away with the new DP2VGA converter! I'm plugging it and the external monitor gets immediately recognized. Sorry for the noise in this report but I never would have thought that the DP2VGA adapter would fail in such a strange way. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I have a DisplayPort output and two adapters. DP to HDMI and DP to VGA. I have weeks to experience the issue with the DP2HDMI converter but it happens every time with the DP2VGA converter. I've ordered an other DP2VGA converter. Let's see. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
The behavior changed and I again checked several kernel versions and found an important difference: * 46 shows lightdm greeter (password input) on internal and external monitor and after starting the session (login) the external monitor is deactivated but I can reactivate it (switch between internal/external/internal+external monitor) using the appropriate Fn+F key combination to make the session visible on the external monitor. * 48, 49, 52, 51 shows lightdm greeter (password input) on internal and external screen but after starting the session (login) the external monitor stops working and Fn+F does not activate it again. Logging out again shows the lightdm greeter on both monitors but once in the session it is impossible to get the external monitor working except for logging out. The only difference in behavior is the kernel version. At the moment only kernel 46 is usable. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I get the same with HP Elitebook 840, Ubuntu 14.04.02, kernel 3.13.0-52-generic. Each time I plug in the VGA cable of my new Asus screen (no fitting HDMI cable at home) there is a [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up message in syslog and it is not detected. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Last week it was still working with a data projector so I do not know what happened. I can provide more data if requested. Is someone working on this bug? -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Recently the workaround I previously described stopped working: logging out of the session and logging in back does not work anymore: only the lightdm screen becomes visible on the projector, the session is never visible! (After plugging out the monitor the first time, or after shutting down the beamer the first time. Before that it works.) On Sat, May 9, 2015 at 8:25 PM, André Rummler 1300...@bugs.launchpad.net wrote: Last week it was still working with a data projector so I do not know what happened. I can provide more data if requested. Is someone working on this bug? -- You received this bug notification because you are subscribed to the bug report. https://bugs.launchpad.net/bugs/1300914 Title: External screen undetected after first plug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+subscriptions -- Peter SCHÜLLER, Assistant Professor Dr Marmara University, Computer Engineering Department http://www.peterschueller.com/ -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I searched but I only found an error with different symptoms but the same log message: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1301398 As it claims that it was fixed in 3.15, I installed 3.16.0-37-generic from Utopic and voilà: It works without problems and error messages. So I am in a better position than Kamil in #28 but as I am even using the same model of notebook (different hardware configuration possible) we still do not know why it occurs. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I am on ubuntu 14.04. fix pack 1 = linux kernel 3.16.0-33. HP Elitebook 840 There is no more *ERROR* too many retries, in the log, but the behaviour is still the same as people describe above. When VGA is connected to the docking station, reboot fixes the problem When VGA is connected directly to the laptop and the laptop is undocked, the problem may be fixed just by sleep/resume, no reboot needed. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
ANYONE: Is there a way to get debug logs when this thing happens? Anyway to reset the VGA driver or anything except rebooting the whole machine? When pluging the external monitor dmesg shows nothing -- also greping /var/log shows nothing. I don't know where else to look. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Today it happened to me again and after unplugging and replugging the monitor 10 times it worked!!! It almost makes me feel it must be a HW issue but: - I'm using two different displayport adapters (DP to VGA at home DP to HDMI at work) - it never ever happened during a powering on (have powered up my laptop at least 20 times after this issue begun) - a reboot *always* fixes the problem (have tried it at least 10 times) -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
As I wrote above: for me logging out of the session and in again consistently restores it (already when lightdm is restarting it is resolved and both monitors work again). (This is true unless using kernel 3.13.0-44-generic where the VGA port never works.) -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Nick I understand. I personally use tmux a lot to avoid this, but this works only for console applications. The important point I wanted to make is: it does not require a hardware- level-reset to restore the functionality. As a consequence I believe this should be fixable in software. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
You're right Peter: logging out to lightdm also works for me. However quitting the GUI session is the real pain for me: it's very often that I have two dozen windows spread over a few virtual screens, everything arranged in just the right order. I just hate loosing this. Rebooting only adds a few seconds after the SSD upgrade but I would gladly wait a couple of minutes if I could save my GUI session. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
In my case things are (mostly) OK since a few days (I'm now on 3.13.0-46). One or two times it failed but I have no ideat what trigered the failure. To tell the trouth I also begun suspending the notebook first then removing the hdmi cable because *maybe* it helps. Nevered failed since I do this but maybe it's just a coincidence... This bug is a tough 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Nick Demou: I tried with 3.13.0-32-generic, 3.13.0-44-generic, 3.13.0-45-generic, 3.13.0-46-generic In 44 it does not work, not even once. The external VGA port never becomes active. All the others work with the described bug: * the VGA port becomes mirrored during boot. * When I unplug it and plug it in again it does not work anymore. * [Workaround] If I log out of my session or restart lightdm the VGA port becomes active again, until the next plugout or shutdown of the screen. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I now installed bumblebee and the issue is still the same. It works once and then no more. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I have a GeForce GT 740M card and this happens * with nouveau drivers * with proprietary NVIDIA drivers * with GeForce settings to intel gpu * with GeForce settings to NVIDIA gpu -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I have the same problem. When I press Detect Displays in the displays settings dialogue I get three [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up lines in the syslog. -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
display port seems to work fine -- it may be used as workaround -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I have the same symptoms only _after_ upgrading to 3.13.0-44-generic. Can you test an earlier kernel version and see if the problem goes away? uname -a Linux ndXPS13 3.13.0-44-generic #73~precise1-Ubuntu SMP Wed Dec 17 00:38:38 UTC 2014 i686 i686 i386 GNU/Linux lspci|grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) xrandr Screen 0: minimum 320 x 200, current 1366 x 768, maximum 32767 x 32767 LVDS1 connected primary 1366x768+0+0 (normal left inverted right x axis y axis) 293mm x 164mm 1366x768 60.0*+ 40.0 1360x768 59.8 60.0 1024x768 60.0 800x60060.3 56.2 640x48059.9 VGA1 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) DP1 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Here is a duplicate issue, with apport info: https://bugs.launchpad.net/ubuntu/+source/libdrm/+bug/1411552 -- 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/1300914 Title: External screen undetected after first plug Status in linux package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Here's another report with HP EliteBook 840. == dmesg == DMI: Hewlett-Packard HP EliteBook 840 G1/198F, BIOS L71 Ver. 01.04 10/09/2013 == /proc/cpuinfo == model name : Intel(R) Core(TM) i5-4300U CPU @ 1.90GHz == lspci == 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device 198f Flags: bus master, fast devsel, latency 0, IRQ 65 Memory at d000 (64-bit, non-prefetchable) [size=4M] Memory at c000 (64-bit, prefetchable) [size=256M] I/O ports at 3000 [size=64] Expansion ROM at unassigned [disabled] Capabilities: access denied Kernel driver in use: i915 Steps taken: 1) Power on the computer without VGA attached 2) Log in to Unity == xrandr == Screen 0: minimum 320 x 200, current 1600 x 900, maximum 32767 x 32767 eDP1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 309mm x 174mm 1600x900 60.0*+ 40.0 1440x900 59.9 1360x768 59.8 60.0 1152x864 60.0 1024x768 60.0 800x60060.3 56.2 640x48059.9 DP1 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) DP2 disconnected (normal left inverted right x axis y axis) HDMI2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) 3) Attach VGA cable - Desktop extends to the external display as it should == syslog == colord: Automatic metadata add icc-ed869d76ba2f1549b15ab60e4327ba9b to xrandr-Lenovo Group Limited-VP-07998 colord: Device added: xrandr-Lenovo Group Limited-VP-07998 == xrandr == Screen 0: minimum 320 x 200, current 3520 x 1200, maximum 32767 x 32767 eDP1 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 309mm x 174mm 1600x900 60.0*+ 40.0 1440x900 59.9 1360x768 59.8 60.0 1152x864 60.0 1024x768 60.0 800x60060.3 56.2 640x48059.9 DP1 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) DP2 connected 1920x1200+1600+0 (normal left inverted right x axis y axis) 518mm x 324mm 1920x1200 60.0*+ 1920x1080 59.9 1600x1200 60.0 1680x1050 60.0 1280x1024 75.0 72.0 60.0 1440x900 75.0 59.9 1024x768 75.1 70.1 60.0 800x60072.2 75.0 60.3 640x48075.0 72.8 66.0 60.0 720x40070.1 HDMI2 disconnected (normal left inverted right x axis y axis) VIRTUAL1 disconnected (normal left inverted right x axis y axis) 4) Detach VGA cable - Display setting switches to 1-display mode as it should (i.e. windows on external display are moved to the laptop display) - xrandr output is exactly the same as in step 2 - Right after detaching these messages appear in syslog: == syslog == kernel: [ 172.974774] [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up # line above repeated 6 more times kernel: [ 173.010309] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting kernel: [ 173.021468] [drm:intel_dp_start_link_train] *ERROR* too many voltage retries, give up # line above repeated 6 more times kernel: [ 173.055319] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting colord: device removed: xrandr-Lenovo Group Limited-VP-0799 5) Attach VGA cable - External display is not recognized in System Settings - Displays - xrandr output is still the same - Each time the cable is attached, this message appears in syslog 3 times: == syslog == kernel: [ 219.441432] [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up Once the VGA cable has been detached the external display won't be recognized even after a soft reboot, UNLESS the cable is attached while rebooting. These steps apply only if the machine is fully powered off first... -- 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+subscriptions -- Mailing list:
[Kernel-packages] [Bug 1300914] Re: External screen undetected after first plug
What does the output of xrandr show when VGA is working, and when it is not? -- 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Sorry, I have changed both the computer and the desktop environment since then. I had work to do and needed reliable settings quickly. I have achieved this with a Thinkpad and KDE. -- 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I observe the same problem on 14.04 on HP EliteBook 840. dmesg: [0.00] Linux version 3.13.0-36-generic (buildd@toyol) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #63-Ubuntu SMP Wed Sep 3 21:30:07 UTC 2014 (Ubuntu 3.13.0-36.63-generic 3.13.11.6) [0.00] DMI: Hewlett-Packard HP EliteBook 840 G1/198F, BIOS L71 Ver. 01.06 01/24/2014 [19569.345195] [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up lspci: 00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device 198f Flags: bus master, fast devsel, latency 0, IRQ 63 Memory at d000 (64-bit, non-prefetchable) [size=4M] Memory at c000 (64-bit, prefetchable) [size=256M] I/O ports at 3000 [size=64] Expansion ROM at unassigned [disabled] Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit- Capabilities: [d0] Power Management version 2 Capabilities: [a4] PCI Advanced Features Kernel driver in use: i915 -- 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I tried the mainline kernel: 3.15.6-031506-generic, still the same problem. ** 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
This issue affects me too (Ubuntu GNOME 14.04 on a Macbook Pro 11.1). With Ubuntu GNOME 13.10 it didn't. Hereby attached is a log file with two kind of messages: * [...] [drm:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up * [...] [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up ** Attachment added: bug.log https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+attachment/4133492/+files/bug.log -- 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Hallo, i have the same problem under Xubuntu 14.04 and a brandnew HP Zbook 14. At system boot my external vga screen was detected correctly and a few seconds after Xubuntu-XFCE-Login the external screen isn't available. At a few seconds i have seen the correct XFCE-desktop through the login process. Here is my syslog-entry if i plug out an plug in the external vga-monitor: [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up The problem affects obviosly to a programming bug. See here: https://bugs.freedesktop.org/attachment.cgi?id=93781 (Patch Intel i915). -- 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
The simple fact to switch to a TTY reactivate the screen. There are also no issues in other windows managers than Gnome (e.g. Openbox), xrandr works well. So probably neither an Xorg nor a driver issue. It seems to be Gnome-related. ** Tags removed: 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I am not able to provide technical details at this time. This a functional issue and I don't know what package is involved. ** 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.14 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. ** Changed in: linux (Ubuntu) Importance: Undecided = Medium ** Tags added: trusty ** 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Incomplete Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
I tested with 3.14, and same problem. But I caught some kernel messages every time I replug the screen: [ 42.038474] [drm:intel_dp_complete_link_train] *ERROR* failed to train DP, aborting [ 57.587925] [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up [ 57.600327] [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up [ 57.612303] [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up [ 66.380412] [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up [ 66.391831] [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up [ 66.403830] [drm:intel_dp_aux_native_read] *ERROR* too many retries, giving up I am not sure if it relevant, but it seems so. -- 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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 1300914] Re: External screen undetected after first plug
Also note that I had no issue on Ubuntu 12.04, so this is a regression. ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed ** 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/1300914 Title: External screen undetected after first plug Status in “linux” package in Ubuntu: Confirmed Bug description: On Ubuntu 14.04, the external screen plugged on VGA is detected and get activated correctly. However, if I unplug it and then replug it later, it is not detected anymore and the screen receives no signal. A way to get it back to work is to reboot or simply suspend the computer. Sorry but I have no idea of what package is handling that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1300914/+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
