Thank you for taking the time to report this bug and helping to make Ubuntu better. It sounds like some part of the system has crashed. To help us find the cause of the crash please follow these steps:
1. Look in /var/crash for crash files and if found run: ubuntu-bug YOURFILE.crash Then tell us the ID of the newly-created bug. 2. If step 1 failed then look at https://errors.ubuntu.com/user/ID where ID is the content of file /var/lib/whoopsie/whoopsie-id on the machine. Do you find any links to recent problems on that page? If so then please send the links to us. 3. If step 2 also failed then apply the workaround from bug 994921, reboot, reproduce the crash, and retry step 1. Please take care to avoid attaching .crash files to bugs as we are unable to process them as file attachments. It would also be a security risk for yourself. ** Changed in: gnome-shell (Ubuntu) Status: New => 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/1882410 Title: GNOME Shell crashed with signal 5 Status in gnome-shell package in Ubuntu: Incomplete Bug description: A couple of times a day, I'm noticing all of the window dressing suddenly disappear from all of my open applications, then a second or two later returning. Opening up /var/log/syslog I see: Jun 6 20:45:53 eva gnome-shell[335243]: Window manager warning: Invalid WM_TRANSIENT_FOR window 0x4a00015 specified for 0x4a00518. Jun 6 20:46:40 eva gnome-shell[335243]: Window manager warning: Invalid WM_TRANSIENT_FOR window 0x4a00015 specified for 0x4a0051f. Jun 6 20:47:40 eva gnome-shell[335243]: toggling down object GInotifyFileMonitor that's already queued to toggle down Jun 6 20:47:40 eva gnome-shell[335243]: GNOME Shell crashed with signal 5 Jun 6 20:47:40 eva gnome-shell[335243]: == Stack trace for context 0x557e3a0446a0 == Jun 6 20:47:40 eva systemd[25554]: gnome-shell-x11.service: Main process exited, code=dumped, status=5/TRAP Jun 6 20:47:40 eva systemd[25554]: gnome-shell-x11.service: Failed with result 'core-dump'. Jun 6 20:47:40 eva systemd[25554]: gnome-shell-x11.service: Scheduled restart job, restart counter is at 3. Jun 6 20:47:40 eva systemd[25554]: Stopped target GNOME X11 Session (session: ubuntu). Jun 6 20:47:40 eva systemd[25554]: Stopping GNOME X11 Session (session: ubuntu). Jun 6 20:47:40 eva systemd[25554]: Stopped target GNOME X11 Session. Jun 6 20:47:40 eva systemd[25554]: Stopping GNOME X11 Session. Jun 6 20:47:40 eva systemd[25554]: Stopped target GNOME Shell on X11. Jun 6 20:47:40 eva systemd[25554]: Stopping GNOME Shell on X11. Jun 6 20:47:40 eva systemd[25554]: Stopped GNOME Shell on X11. Jun 6 20:47:40 eva systemd[25554]: Starting GNOME Shell on X11... Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): EDID vendor "ACI", prod id 8434 Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Using hsync ranges from config file Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Using vrefresh ranges from config file Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Printing DDC gathered Modelines: Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "1600x900"x0.0 108.00 1600 1624 1704 1800 900 901 904 1000 +hsync +vsync (60.0 kHz eP) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "800x600"x0.0 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "800x600"x0.0 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "640x480"x0.0 31.50 640 656 720 840 480 481 484 500 -hsync -vsync (37.5 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "640x480"x0.0 31.50 640 664 704 832 480 489 492 520 -hsync -vsync (37.9 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "640x480"x0.0 30.24 640 704 768 864 480 483 486 525 -hsync -vsync (35.0 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "640x480"x0.0 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "720x400"x0.0 28.32 720 738 846 900 400 412 414 449 -hsync +vsync (31.5 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "1024x768"x0.0 78.75 1024 1040 1136 1312 768 769 772 800 +hsync +vsync (60.0 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "1024x768"x0.0 75.00 1024 1048 1184 1328 768 771 777 806 -hsync -vsync (56.5 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "1024x768"x0.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "832x624"x0.0 57.28 832 864 928 1152 624 625 628 667 -hsync -vsync (49.7 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "800x600"x0.0 49.50 800 816 896 1056 600 601 604 625 +hsync +vsync (46.9 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "800x600"x0.0 50.00 800 856 976 1040 600 637 643 666 +hsync +vsync (48.1 kHz e) Jun 6 20:47:40 eva /usr/lib/gdm3/gdm-x-session[25623]: (II) modeset(0): Modeline "1152x864"x0.0 108.00 1152 1216 1344 1600 864 865 868 900 +hsync +vsync (67.5 kHz e) Jun 6 20:47:40 eva gsd-media-keys[26011]: Failed to grab accelerators: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.gnome.Shell” on object at path /org/gnome/Shell Jun 6 20:47:41 eva gnome-shell[338452]: Unset XDG_SESSION_ID, getCurrentSessionProxy() called outside a user session. Asking logind directly. Jun 6 20:47:41 eva gnome-shell[338452]: Will monitor session 764 Jun 6 20:47:41 eva gnome-shell[338477]: current session already has an ibus-daemon. Jun 6 20:47:41 eva gsd-media-keys[26011]: Failed to grab accelerators: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.gnome.Shell” on object at path /org/gnome/Shell Jun 6 20:47:41 eva dbus-daemon[1068]: [system] Activating via systemd: service name='org.freedesktop.GeoClue2' unit='geoclue.service' requested by ':1.21125' (uid=1001 pid=338452 comm="/usr/bin/gnome-shell " label="unconfined") Jun 6 20:47:41 eva systemd[1]: Starting Location Lookup Service... Jun 6 20:47:41 eva gnome-shell[338452]: Telepathy is not available, chat integration will be disabled. Jun 6 20:47:41 eva dbus-daemon[1068]: [system] Successfully activated service 'org.freedesktop.GeoClue2' Jun 6 20:47:41 eva systemd[1]: Started Location Lookup Service. Jun 6 20:47:41 eva dbus-daemon[1068]: [system] Activating via systemd: service name='org.freedesktop.PackageKit' unit='packagekit.service' requested by ':1.21125' (uid=1001 pid=338452 comm="/usr/bin/gnome-shell " label="unconfined") Jun 6 20:47:41 eva systemd[1]: Starting PackageKit Daemon... Jun 6 20:47:41 eva PackageKit: daemon start Jun 6 20:47:41 eva dbus-daemon[1068]: [system] Successfully activated service 'org.freedesktop.PackageKit' Jun 6 20:47:41 eva systemd[1]: Started PackageKit Daemon. Jun 6 20:47:42 eva dbus-daemon[25576]: [session uid=1001 pid=25576] Activating service name='org.freedesktop.FileManager1' requested by ':1.15623' (uid=1001 pid=338452 comm="/usr/bin/gnome-shell " label="unconfined") Jun 6 20:47:42 eva dbus-daemon[25576]: [session uid=1001 pid=25576] Activating service name='org.gnome.Shell.Notifications' requested by ':1.15623' (uid=1001 pid=338452 comm="/usr/bin/gnome-shell " label="unconfined") Jun 6 20:47:42 eva dbus-daemon[25576]: [session uid=1001 pid=25576] Successfully activated service 'org.gnome.Shell.Notifications' Jun 6 20:47:42 eva dbus-daemon[25576]: [session uid=1001 pid=25576] Successfully activated service 'org.freedesktop.FileManager1' Jun 6 20:47:42 eva systemd[25554]: Started GNOME Shell on X11. Jun 6 20:47:42 eva systemd[25554]: Reached target GNOME Shell on X11. Jun 6 20:47:42 eva systemd[25554]: Reached target GNOME X11 Session. Jun 6 20:47:42 eva systemd[25554]: Reached target GNOME X11 Session (session: ubuntu). Jun 6 20:47:42 eva NetworkManager[1069]: <info> [1591498062.4557] agent-manager: agent[3d345b5a383c546a,:1.21125/org.gnome.Shell.NetworkAgent/1001]: agent registered Jun 6 20:47:42 eva gnome-shell[338452]: Error looking up permission: GDBus.Error:org.freedesktop.portal.Error.NotFound: No entry for geolocation Jun 6 20:47:42 eva gsd-media-keys[26011]: Failed to grab accelerator for keybinding settings:playback-repeat Jun 6 20:47:42 eva gsd-media-keys[26011]: Failed to grab accelerator for keybinding settings:rfkill Jun 6 20:47:42 eva gsd-media-keys[26011]: Failed to grab accelerator for keybinding settings:playback-random Jun 6 20:47:42 eva gsd-media-keys[26011]: Failed to grab accelerator for keybinding settings:hibernate Jun 6 20:47:43 eva gnome-shell[338452]: Window manager warning: Overwriting existing binding of keysym 38 with keysym 38 (keycode 11). Jun 6 20:47:43 eva gnome-shell[338452]: Window manager warning: Overwriting existing binding of keysym 39 with keysym 39 (keycode 12). Jun 6 20:47:43 eva gnome-shell[338452]: Window manager warning: Overwriting existing binding of keysym 31 with keysym 31 (keycode a). Jun 6 20:47:43 eva gnome-shell[338452]: Window manager warning: Overwriting existing binding of keysym 32 with keysym 32 (keycode b). Jun 6 20:47:43 eva gnome-shell[338452]: Window manager warning: Overwriting existing binding of keysym 33 with keysym 33 (keycode c). Jun 6 20:47:43 eva gnome-shell[338452]: Window manager warning: Overwriting existing binding of keysym 34 with keysym 34 (keycode d). Jun 6 20:47:43 eva gnome-shell[338452]: Window manager warning: Overwriting existing binding of keysym 35 with keysym 35 (keycode e). Jun 6 20:47:43 eva gnome-shell[338452]: Window manager warning: Overwriting existing binding of keysym 36 with keysym 36 (keycode f). Jun 6 20:47:43 eva gnome-shell[338452]: Window manager warning: Overwriting existing binding of keysym 37 with keysym 37 (keycode 10). Jun 6 20:47:44 eva gnome-shell[338452]: GNOME Shell started at Sat Jun 06 2020 20:47:41 GMT-0600 (CST) Jun 6 20:47:44 eva gnome-shell[338452]: Registering session with GDM Seems to recover fine afterwards, but it happens again further down the line. Seems like something mnemosyne is doing during the transition after I hit a number is triggering this...but only one out of every couple hundred(thousand?) cards. mnemosyne: Installed: 2.7.1+ds-1 Candidate: 2.7.1+ds-1 Version table: *** 2.7.1+ds-1 500 500 http://mirrors.layeronline.com/ubuntu focal/universe amd64 Packages 500 http://mirrors.layeronline.com/ubuntu focal/universe i386 Packages 100 /var/lib/dpkg/status themusicgod1@eva1:~$ apt-cache policy gnome-shell gnome-shell: Installed: 3.36.1-5ubuntu1 Candidate: 3.36.1-5ubuntu1 Version table: *** 3.36.1-5ubuntu1 500 500 http://mirrors.layeronline.com/ubuntu focal/main amd64 Packages 100 /var/lib/dpkg/status themusicgod1@eva1:~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=20.04 DISTRIB_CODENAME=focal DISTRIB_DESCRIPTION="Ubuntu 20.04 LTS" ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-shell 3.36.1-5ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-26.30-lowlatency 5.4.30 Uname: Linux 5.4.0-26-lowlatency x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Sat Jun 6 20:52:49 2020 DisplayManager: gdm3 InstallationDate: Installed on 2017-04-18 (1145 days ago) InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412) RelatedPackageVersions: mutter-common 3.36.1-3ubuntu3 SourcePackage: gnome-shell UpgradeStatus: Upgraded to focal on 2020-04-25 (42 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1882410/+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