Hang check is a driver bug ** Project changed: unity-system-compositor => mesa (Ubuntu)
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1222923 Title: Screen lockup under XMir Status in “mesa” package in Ubuntu: New Bug description: I experienced a strange screen lockup. My screen was unresponsive: no mouse movement, nothing changes. Switching to a VC was possible, and the VC was not locked up. Switching back again to X (under XMir, console 7) worked for a second, maybe two seconds, and then the screen would freeze again. Switching to VC and then back to X would again give a second or so of visual activity. Actions I performed did appear to take effect while the screen was frozen, but were not shown on screen: for example, I was able to highlight some text in a browser, and then press alt+f2 and start an xterm, by doing it "blind": switching to a VC and then back to X showed that these things had happened. In the VC, dmesg showed this: [107758.813860] iwlwifi 0000:02:00.0: Q 17 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [107758.813926] iwlwifi 0000:02:00.0: Q 18 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [107758.813988] iwlwifi 0000:02:00.0: Q 19 is inactive and mapped to fifo 0 ra_tid 0x0000 [0,0] [111224.241455] systemd-timedated[23894]: /etc/localtime should be a symbolic link to a timezone data file in /usr/share/zoneinfo/. [111461.792036] [drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring [111461.792050] [drm:i915_hangcheck_elapsed] *ERROR* stuck on blitter ring [111461.792054] [drm] capturing error event; look for more information in /sys/kernel/debug/dri/0/i915_error_state [111462.309818] systemd-udevd[24067]: failed to execute '/lib/udev/socket:@/org/freedesktop/hal/udev_event' 'socket:@/org/freedesktop/hal/udev_event': No such file or directory [111465.289960] systemd-udevd[24087]: failed to execute '/lib/udev/socket:@/org/freedesktop/hal/udev_event' 'socket:@/org/freedesktop/hal/udev_event': No such file or directory [111465.292790] systemd-udevd[24088]: failed to execute '/lib/udev/socket:@/org/freedesktop/hal/udev_event' 'socket:@/org/freedesktop/hal/udev_event': No such file or directory The lines about i915 seemed relevant. Attached to this bug is a copy of the /sys/kernel/debug/dri/0/i915_error_state file. I restarted lightdm from the VC and was given the opportunity to log in, but the system then showed a dialog box saying that I was in "low- graphics mode". I chose to exit to a console, at which point things seemed to hang. I switched back to the VC and rebooted with "sudo reboot" and the machine came back fine. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: unity-system-compositor 0.0.1+13.10.20130903-0ubuntu1 ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7 Uname: Linux 3.11.0-4-generic x86_64 ApportVersion: 2.12.1-0ubuntu3 Architecture: amd64 CheckboxSubmission: 4d186c1dd89d3ba4cb89f5ee55713686 CheckboxSystem: bb422ca46d02494cdbc459927a98bc2f Date: Mon Sep 9 17:50:24 2013 EcryptfsInUse: Yes GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:3975] InstallationDate: Installed on 2011-12-11 (637 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111211) LightDMLog: Error: [Errno 13] Permission denied: '/var/log/lightdm/lightdm.log' MarkForUpload: True SourcePackage: unity-system-compositor UnitySystemCompositorLog: Error: [Errno 13] Permission denied: '/var/log/lightdm/unity-system-compositor.log' UpgradeStatus: Upgraded to saucy on 2013-09-05 (3 days ago) version.libdrm: libdrm2 2.4.46-1 version.lightdm: lightdm 1.7.12-0ubuntu1 version.mesa: libegl1-mesa-dev N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1222923/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
