*** This bug is a duplicate of bug 1754445 *** https://bugs.launchpad.net/bugs/1754445
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: gnome-shell (Ubuntu) Status: New => Confirmed -- 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/1763850 Title: gnome-shell crashed with SIGSEGV in cogl_object_unref() Status in gnome-shell package in Ubuntu: Confirmed Bug description: No idea where this bug comes from. I was just browsing in Firefox for another bug, about the login screen graphics not being rendered properly, i.e. characters being skipped and other graphical items looking funky. Freshly installed 18.04 beta2 from 2018-04-06, today. The system was fully updated before I started searching for the other bug when the crash report appeared on the screen. I'm on a Acer Aspire V5 laptop with an i7-3517U CPU, 8 gb ram, ssd and nvidia optimus 620m. Using either the nouveau (not the closed nvidia) driver or intel graphics, depends on where I look in the GUI, not sure what commands to run to positively determine what's being used. If you need more info don't hesitate to ask, and if you don't mind, please point me in a direction as to how I can get that info for you (maybe a command to run, or some search engine terms). ProblemType: Crash DistroRelease: Ubuntu 18.04 Package: gnome-shell 3.28.0-0ubuntu5 ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10 Uname: Linux 4.15.0-13-generic x86_64 ApportVersion: 2.20.9-0ubuntu4 Architecture: amd64 CurrentDesktop: GNOME-Greeter:GNOME Date: Fri Apr 13 22:11:33 2018 DisplayManager: gdm3 ExecutablePath: /usr/bin/gnome-shell GsettingsChanges: InstallationDate: Installed on 2018-04-13 (0 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Beta amd64 (20180404) ProcCmdline: /usr/bin/gnome-shell SegvAnalysis: Segfault happened at: 0x7f9d56c2de00 <cogl_object_unref>: mov (%rdi),%rax PC (0x7f9d56c2de00) ok source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)! destination "%rax" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: gnome-shell StacktraceTop: cogl_object_unref () from /usr/lib/x86_64-linux-gnu/mutter/libmutter-cogl-2.so ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0 ?? () from /usr/lib/gnome-shell/libst-1.0.so g_closure_invoke () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 Title: gnome-shell crashed with SIGSEGV in cogl_object_unref() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1763850/+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