Public bug reported: When I return from a locked screen, I get a the crash dialog "System program problem detected". The related file in /var/log crash shows this in the header lines:
ProblemType: Crash Architecture: amd64 Date: Thu Oct 27 10:33:08 2016 DistroRelease: Ubuntu 16.04 ExecutablePath: /usr/lib/xorg/Xorg ExecutableTimestamp: 1473867446 ProcCmdline: /usr/lib/xorg/Xorg -core :1 -seat seat0 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch ProcCwd: / ProcEnviron: It appears that the xorg instance on vt8 is crashing while starting the lock process; the crash file in /var/crash appears just after locking the screen. I have attached the xorg log from the display that is crashing (Xorg.1.log). There is a related output in the main display log (Xorg.0.log): [ 10248.316] (II) AIGLX: Suspending AIGLX clients for VT switch [ 10248.350] (II) NOUVEAU(G0): NVLeaveVT is called. [ 10254.968] (II) AIGLX: Resuming AIGLX clients after VT switch [ 10254.968] (II) intel(0): switch to mode [email protected] on LVDS2 using pipe 0, position (0, 0), rotation normal, reflection none [ 10255.002] (II) NOUVEAU(G0): NVEnterVT is called. [ 10255.340] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found The screen locking appears to be working. VT7 is locked with a re-direct to VT8. I can log back in through VT8 and everything is normal, with the exception of the initial crash and subsequent crash dialog pop-up. Here is some relevant system information: Lenovo ThinkPad W520 Description:Ubuntu 16.04.1 LTS Release:16.04 lightdm: Installed: 1.18.3-0ubuntu1 xorg: Installed: 1:7.7+13ubuntu3 xserver-xorg-video-intel: Installed: 2:2.99.917+git20160325-1ubuntu1.1 xserver-xorg-video-nouveau: Installed: 1:1.0.12-1build2 ** Affects: lightdm (Ubuntu) Importance: Undecided Status: New ** Tags: screen-lock ** Attachment added: "log file of crashed display during locking process" https://bugs.launchpad.net/bugs/1637235/+attachment/4768247/+files/Xorg.1.log -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1637235 Title: xorg crashes on lock screen Status in lightdm package in Ubuntu: New Bug description: When I return from a locked screen, I get a the crash dialog "System program problem detected". The related file in /var/log crash shows this in the header lines: ProblemType: Crash Architecture: amd64 Date: Thu Oct 27 10:33:08 2016 DistroRelease: Ubuntu 16.04 ExecutablePath: /usr/lib/xorg/Xorg ExecutableTimestamp: 1473867446 ProcCmdline: /usr/lib/xorg/Xorg -core :1 -seat seat0 -auth /var/run/lightdm/root/:1 -nolisten tcp vt8 -novtswitch ProcCwd: / ProcEnviron: It appears that the xorg instance on vt8 is crashing while starting the lock process; the crash file in /var/crash appears just after locking the screen. I have attached the xorg log from the display that is crashing (Xorg.1.log). There is a related output in the main display log (Xorg.0.log): [ 10248.316] (II) AIGLX: Suspending AIGLX clients for VT switch [ 10248.350] (II) NOUVEAU(G0): NVLeaveVT is called. [ 10254.968] (II) AIGLX: Resuming AIGLX clients after VT switch [ 10254.968] (II) intel(0): switch to mode [email protected] on LVDS2 using pipe 0, position (0, 0), rotation normal, reflection none [ 10255.002] (II) NOUVEAU(G0): NVEnterVT is called. [ 10255.340] (--) synaptics: SynPS/2 Synaptics TouchPad: touchpad found The screen locking appears to be working. VT7 is locked with a re- direct to VT8. I can log back in through VT8 and everything is normal, with the exception of the initial crash and subsequent crash dialog pop-up. Here is some relevant system information: Lenovo ThinkPad W520 Description:Ubuntu 16.04.1 LTS Release:16.04 lightdm: Installed: 1.18.3-0ubuntu1 xorg: Installed: 1:7.7+13ubuntu3 xserver-xorg-video-intel: Installed: 2:2.99.917+git20160325-1ubuntu1.1 xserver-xorg-video-nouveau: Installed: 1:1.0.12-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1637235/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
