[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Cobalt, feel free to reopen if you can complete the directions provided for collecting the necessary information. If you have questions on how to perform the technical steps, use http://askubuntu.com for technical support. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete = Invalid -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
** Changed in: xserver-xorg-video-intel Status: Incomplete = Invalid -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Hi, Bryce, sorry about the delay. I had to be away from home. I take it I need to upgrade to 12.04. Do I need to install both the linux-header and linux-image debs? What about the difference between the pae debs and the rest? Which ones do I need to install? Thanks very much. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
** Changed in: xserver-xorg-video-intel Status: Confirmed = Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Hi, Bryce, sorry about the late response. My monitor died and it took me a while to get a replacement - same model. I am attaching the dmesg output and will try to install the fix soon. When I replaced the monitor I realized - and wish I had done it sooner - that the monitor does not flicker when connected to the computer via the analog cable (with the help of an adapter). ** Attachment added: oneiric dmesg.txt April 20, 2012 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/681054/+attachment/3095259/+files/dmesg2012-4-20.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Launchpad seems to have lost the attachment. Trying again. ** Attachment added: dmesg2012-4-20.txt https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/681054/+attachment/3095269/+files/dmesg2012-4-20.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Cobalt, upstream believes they have found the fix for this bug. It is included in their upstream git branch. Debs for you to install and test are provided here: http://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-experimental/ Please install and test this ASAP and let us know if it fixes the issue for you. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed = Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Hi Cobalt, could you try attaching the dmesg.txt again? It appears to have not gotten saved in launchpad for some reason. Or, go ahead and post it directly to the bug at https://bugs.freedesktop.org/show_bug.cgi?id=37526 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Launchpad has imported 8 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=37526. If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. On 2011-05-24T02:50:54+00:00 Bryce Harrington wrote: Forwarding this bug from Ubuntu reporter Cobalt: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/681054 [Problem] Very brief periodic screen blanking every couple seconds. Regression began in 10.10 and continues in 11.04. Reporter has been testing upstream git snapshots and finds problem still persists. [Original Description] Since I upgraded from Ubuntu 10.04 to 10.10, the monitor displays correctly for a couple of seconds, then turns black for a fraction of a second and then repeats the on and off sequence, making the computer nearly unusable. The whole sequence is periodic, not random. Another bug reported earlier (#606987) persists in this release as well, perhaps with the exception that restarting the computer (as opposed to turning it on after a shutdown) gives a normal logon screen. (I only used Restart a couple of times since the upgrade.) With a live CD for natty, the display is fine up to the screen where I am shown the menu that includes using Ubuntu without installing. Once I choose this option the display changes and the name ubuntu appears, underscored by five dots whose color changes from white to red and back to show that the computer is doing work. It is there that the screen starts to blink. I have only one monitor, although at some level - at least for maverick and older versions - the computer seems to think that I have two. This is probably at least part of the cause of the other bug (#606987) I mentioned in the original description of this problem. Thanks and regards DistUpgraded: Fresh install GraphicsCard: Subsystem: ASUSTeK Computer Inc. Device [1043:82d9] Subsystem: ASUSTeK Computer Inc. Device [1043:82d9] MachineType: ASUSTeK Computer INC. NOVALITE PX20 version.compiz: compiz 1:0.9.2.1+glibmainloop4-0ubuntu11 version.libdrm2: libdrm2 2.4.23-1ubuntu3 version.libgl1-mesa-glx: libgl1-mesa-glx 7.10-1ubuntu1 version.xserver-xorg: xserver-xorg 1:7.6~3ubuntu4 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.13.2+git20110124.fadee040-0ubuntu4 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-1ubuntu7 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu4 Architecture: i386 DistroRelease: Ubuntu 11.04 LiveMediaBuild: Ubuntu 11.04 Natty Narwhal - Beta i386 (20110405) Package: xserver-xorg-video-intel 2:2.14.0-4ubuntu6 PackageArchitecture: i386 Uname: Linux 2.6.38-7-generic i686 [lspci] Nux: lspci: 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 915GM/GMS/910GML Express Graphics Controller [8086:2592] (r Reply at: https://bugs.launchpad.net/xserver-xorg-video- intel/+bug/681054/comments/93 On 2011-05-24T02:52:25+00:00 Bryce Harrington wrote: Created attachment 47083 BootDmesg.txt Reply at: https://bugs.launchpad.net/xserver-xorg-video- intel/+bug/681054/comments/94 On 2011-05-24T02:52:54+00:00 Bryce Harrington wrote: Created attachment 47084 CurrentDmesg.txt Reply at: https://bugs.launchpad.net/xserver-xorg-video- intel/+bug/681054/comments/95 On 2011-05-24T02:55:29+00:00 Bryce Harrington wrote: Created attachment 47085 XorgLog.txt Reply at: https://bugs.launchpad.net/xserver-xorg-video- intel/+bug/681054/comments/96 On 2011-05-25T15:20:11+00:00 Chris Wilson wrote: There are too many possible factors; from output polling to fbc and fifos. Can we identify when the regression was introduced? Reply at: https://bugs.launchpad.net/xserver-xorg-video- intel/+bug/681054/comments/98 On 2011-06-16T10:35:39+00:00 Chris Wilson wrote: The workaround will be echo 0 /sys/module/drm_kms_helper/parameters/poll. But that won't tell us why the periodic polling is causing the output to blank... Load detection on the VGA should be possible with the current mode settings, and the VGA crtc should not be stolen for any other load detections (TV). Reply at: https://bugs.launchpad.net/xserver-xorg-video- intel/+bug/681054/comments/99 On 2011-07-18T15:06:07+00:00 Chris Wilson wrote: The workaround would be to disable polling (drm_kms_helper.poll=0). Improving the locking around
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Attaching dmesg.txt after upgrading to oneiric. ** Attachment added: oneiric dmesg.txt Nov. 4, 2011 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/681054/+attachment/2584727/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
The debugging information Chris Wilson is after can be gathered by adding ‘drm.debug=0xe’ to your kernel command line - you can do that the same way that you added “video=VGA-1:d”. Once you've booted, and the screen has flickered a bit, please grab dmesg and attach it here. You should also be able to add “drm_kms_helper.poll=0” to your kernel command line in /etc/default/grub if you want that work around to be permanently enabled. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed = Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
** Attachment added: dmesg.txt https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/681054/+attachment/2238804/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Hi, Bryce, I appreciate your explanation. I am not proficient enough to understand Chris' rather technical note. I am not sure about the checkbox you mentioned though. I typed sudo xdiagnose and then the system showed a bunch of lines, which I copied into the traceback.txt file (attached). I am also attaching the dmesg output. Could you take a look and let me know if this is good enough? The workaround you mentioned works for me. It stops the blinking. Thanks a lot. ** Attachment added: traceback.txt https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/681054/+attachment/2238814/+files/traceback.txt ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Hi Cobalt, upstream has several questions. * Can you help pinpoint when exactly the regression first started? * Does this workaround make it stop? echo 0 /sys/module/drm_kms_helper/parameters/poll Please install xdiagnose, run 'sudo xdiagnose' and turn on debug messages (the first checkbox). Then reboot, and do whatever you need to do to reproduce the blanking bug. Then, run 'sudo dmesg dmesg.txt' and attach the dmesg.txt to the upstream bug report at https://bugs.freedesktop.org/show_bug.cgi?id=37526 ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Triaged = Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/681054/+subscriptions ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
** Changed in: xserver-xorg-video-intel Status: Unknown = Confirmed ** Changed in: xserver-xorg-video-intel Importance: Unknown = Medium -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
Cobalt - I've forwarded this bug upstream to http://bugs.freedesktop.org/show_bug.cgi?id=37526 - please subscribe yourself to this bug, in case they need further information or wish you to test something. Thanks ahead of time! ** Bug watch added: freedesktop.org Bugzilla #37526 http://bugs.freedesktop.org/show_bug.cgi?id=37526 ** Also affects: xserver-xorg-video-intel via http://bugs.freedesktop.org/show_bug.cgi?id=37526 Importance: Unknown Status: Unknown ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Confirmed = Triaged -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
[I've marked this bug for inclusion in our oneiric bug queue. While technically this bug has not been re-confirmed against oneiric, I feel it is worth continued development attention. We will need to ask that it be re-confirmed once oneiric is further along, perhaps once we get closer to alpha.] ** Tags added: oneiric -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 681054] Re: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?)
** Summary changed: - screen repeatedly goes black for a fraction of a second (two monitors detected?) + [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/681054 Title: [i915gm] screen repeatedly goes black for a fraction of a second (two monitors detected?) ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
