Okay today it really happened again after standby mode. I got nothing about a crash in /var/crash and in my https://errors.ubuntu.com/user/39229ebea988d6578bed98d7e18bd96fd9cd523cf89495ed70d4ce4c0f8b7937667368f389be8d8b2588bafc31d1935109305b4abf52dbb724a7cf43c3b425b4 isn't something either. Magic SysRq couldn't be used because the system was completely frozen.
This is the only thing I can offer you, but maybe it will not help you: 20:16:17 MainThread: Sandbox: attempt to open unexpected file /proc/self/maps 20:12:43 gvfsd-dnssd: Error calling org.gtk.vfs.MonitorClient.Changed(): Zeitüberschreitung wurde erreicht (g-io-error-quark, 24) 20:12:43 MainThread: Sandbox: attempt to open unexpected file /proc/self/maps 20:12:13 Xorg: (II) event1 - Power Button: device is a keyboard 20:12:13 gnome-shell: cr_declaration_parse_list_from_buf: assertion 'parser' failed 20:12:13 Xorg: (II) event8 - Logitech Gaming Mouse G502 Keyboard: device is a keyboard 20:12:13 MainThread: Sandbox: attempt to open unexpected file /proc/self/maps 20:12:13 Xorg: (II) systemd-logind: got resume for 13:69 20:12:12 psensor: [2021-09-14T18:12:12] [ERR] nvctrl: Failed to retrieve measure of type 20204 for NVIDIA GPU 1 20:12:12 MainThread: Sandbox: attempt to open unexpected file /proc/self/maps 19:14:29 Xorg: (II) systemd-logind: got pause for 13:65 19:14:28 MainThread: Sandbox: attempt to open unexpected file /proc/self/maps -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1930192 Title: gnome-shell crashed with SIGSEGV just after: clutter/clutter/clutter- offscreen-effect.c:213: Unable to create an Offscreen buffer Status in mutter package in Ubuntu: Incomplete Bug description: Addition for bug report 1930128 ProblemType: Crash DistroRelease: Ubuntu 20.04 Package: gnome-shell 3.36.7-0ubuntu0.20.04.1 ProcVersionSignature: Ubuntu 5.4.0-73.82-generic 5.4.106 Uname: Linux 5.4.0-73-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.18 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: GNOME-Greeter:GNOME Date: Sat May 29 12:20:21 2021 DisplayManager: gdm3 ExecutablePath: /usr/bin/gnome-shell ExecutableTimestamp: 1608008084 GsettingsChanges: b'org.gnome.desktop.background' b'show-desktop-icons' b'true' b'org.gnome.desktop.lockdown' b'disable-lock-screen' b'true' b'org.gnome.desktop.screensaver' b'idle-activation-enabled' b'false' b'org.gnome.desktop.session' b'idle-delay' b'uint32 0' InstallationDate: Installed on 2019-11-10 (566 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) ProcCmdline: /usr/bin/gnome-shell ProcCwd: /var/lib/gdm3 ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/false RelatedPackageVersions: mutter-common 3.36.7+git20201123-0.20.04.1 SegvAnalysis: Skipped: missing required field "Disassembly" Signal: 11 SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1930192/+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
