Rachel, We are tracking hundreds of gnome-shell crashes right now and have had a few recent ones related to monitor configurations too.
In order to make progress on this bug we either need a stack trace (look in /var/crash for crash files), or someone who experiences the problem to debug it remotely (use a second machine to attach a debugger to gnome-shell and get a trace of the crash that way). My concern is that the problem description without a stack trace is so vague it can easily be mistaken for some other bug. So please try to gather that additional information. This may help: http://wiki.ubuntu.com/DebuggingProgramCrash And this is only a request for Rachel right now, so as to avoid confusion from other peoples' similar issues. ** Changed in: gnome-shell (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1720149 Title: gnome-shell segv on wake from display or system sleep Status in gnome-shell package in Ubuntu: Incomplete Bug description: The observable symptom is that if I go away and let the computer go either to display sleep or suspend, when I come back and try to wake it up again, I find myself, after sliding up the lock screen, at the gdm login screen. I'm logged out, and logging in gives me a fresh new session. Anything I had open in the previous session is lost. (I'm getting used to saving stuff before I step away from the computer!) The only trace I've been able to find is that in /var/log/syslog I see a line like: Sep 28 14:38:44 fleetfoot kernel: [10621.432586] gnome-shell[1863]: segfault at 2c ip 00007f6200e82434 sp 00007ffc46f981c8 error 4 in libmutter-1.so.0.0.0[7f6200de4000+140000] This happens at the time of attempted wake, not the time of going to sleep. It's preceded by a lot of activity from gdm-x-session that I'm not sure is indicating any error, just the process of waking up. I will attach a portion of syslog surrounding the whole event in the hope it helps. (In fact attaching the whole current syslog file - it has two such events occuring in it, first display sleep/wake at 09:02 this morning, and secondly (because I was experimenting) a suspend- wake at 14:38 this afternoon. This is only affecting Xorg sessions, and may possibly only be affecting where nvidia is in use, I'm not sure about that. But the fact it occurs on display wake alone, not needing the system itself to have suspended (I was trying suspend to see if it *avoided* the problem, which it doesn't), does point the finger in that direction I guess. But ultimately I'm guessing it's gnome-shell itself segfaulting that's causing the login session to end? Not observed on my Wayland system. This is not new as of the current version of gnome-shell but I think it is relatively recent. Now my hackintosh partition is wrecked by a failed upgrade to High Sierra I'm using my Linux system more in earnest than before, so I'm hitting this often enough for it to provoke a bug report (and much of the time, to just turn all auto suspend/display-sleep off and instead shut down the computer when I'm leaving it for any length of time). The ubuntu bug reporter is not picking this up by itself, so I presume a crash report of the sort that uses is not being saved. ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: gnome-shell 3.26.0-0ubuntu2 ProcVersionSignature: Ubuntu 4.13.0-12.13-generic 4.13.3 Uname: Linux 4.13.0-12-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.7-0ubuntu1 Architecture: amd64 CurrentDesktop: GNOME Date: Thu Sep 28 14:41:07 2017 DisplayManager: gdm3 InstallationDate: Installed on 2017-07-30 (59 days ago) InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412) SourcePackage: gnome-shell UpgradeStatus: Upgraded to artful on 2017-08-22 (37 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1720149/+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
