Public bug reported: The issue is happening 9 out of 10 times. It is hard to get a crash dump in /var/crash during this error though, but I found one from few days ago. Looks like should be relevant.
I've reported it, see OOPS ID: b68253a2-ea4c-11ed-af33-fa163e55efd0 Laptop: Lenovo ThinkPad X1 Carbon Gen 10, model 21CB007WCK root@x1:~# uname -a Linux x1 6.2.0-20-generic #20-Ubuntu SMP PREEMPT_DYNAMIC Thu Apr 6 07:48:48 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux To reproduce: 1. Win+L to lock the session 2. Screen turns black as expected 3. Login back to your session 4. Welcome to the new & clean session... all unsaved work is lost! 5. see gnome-shell segfault in libmutter-12.so in dmesg root@x1:~# dmesg -T |grep segf [Thu May 4 17:45:04 2023] gnome-shell[2554]: segfault at ffffffffffffff78 ip 00007f3d10961115 sp 00007ffd72b85f78 error 5 in libmutter-12.so.0.0.0[7f3d1084a000+13d000] likely on CPU 0 (core 0, socket 0) [Fri May 5 14:09:43 2023] gnome-shell[24568]: segfault at 11 ip 00007f4c14161119 sp 00007ffd4590de28 error 4 in libmutter-12.so.0.0.0[7f4c1404a000+13d000] likely on CPU 9 (core 17, socket 0) Logs from "ubuntu-bug /var/crash/_usr_bin_gnome-shell.1000.crash" command May 04 09:24:31 x1 systemd[1]: Started whoopsie.service - crash report submission. May 04 09:24:31 x1 whoopsie[54307]: [09:24:31] Using lock path: /var/lock/whoopsie/lock May 04 09:24:31 x1 whoopsie[54307]: [09:24:31] Parsing /var/crash/_usr_bin_gnome-shell.1000.crash. May 04 09:24:31 x1 whoopsie[54307]: [09:24:31] Uploading /var/crash/_usr_bin_gnome-shell.1000.crash. May 04 09:24:32 x1 whoopsie[54307]: [09:24:32] Sent; server replied with: No error May 04 09:24:32 x1 whoopsie[54307]: [09:24:32] Response code: 200 May 04 09:24:32 x1 whoopsie[54307]: [09:24:32] Reported OOPS ID b68253a2-ea4c-11ed-af33-fa163e55efd0 It was difficult to figure how to send the report in Ubuntu 23.04, previously it was just working... but with Ubuntu 23.04 there was this error: May 04 09:21:33 x1 systemd[1]: Starting apport-autoreport.service - Process error reports when automatic reporting is enabled... May 04 09:21:33 x1 systemd[1]: Started whoopsie.service - crash report submission. May 04 09:21:33 x1 whoopsie[53709]: [09:21:33] Using lock path: /var/lock/whoopsie/lock May 04 09:21:33 x1 systemd[1]: whoopsie.service: Deactivated successfully. May 04 09:21:33 x1 whoopsie-upload-all[53708]: ERROR: whoopsie.path is not enabled May 04 09:21:33 x1 systemd[1]: apport-autoreport.service: Main process exited, code=exited, status=1/FAILURE May 04 09:21:33 x1 systemd[1]: apport-autoreport.service: Failed with result 'exit-code'. May 04 09:21:33 x1 systemd[1]: Failed to start apport-autoreport.service - Process error reports when automatic reporting is enabled. Fixed by changing "Send error reports to Canonical" (in gnome control panel -> "Privacy" -> "Diagnostics") from "Automatic" to "Never" and re-running the `ubuntu-bug` command again. gnome-shell 44.0-2ubuntu3 intel-media-va-driver:amd64 23.1.2+dfsg1-1 root@x1:~# lshw -class display *-display description: VGA compatible controller product: Alder Lake-P Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 logical name: /dev/fb0 version: 0c width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb configuration: depth=32 driver=i915 latency=0 mode=1920x1200 resolution=1920,1200 visual=truecolor xres=1920 yres=1200 resources: iomemory:600-5ff iomemory:400-3ff irq:199 memory:603d000000-603dffffff memory:4000000000-400fffffff ioport:2000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff root@x1:~# lshw -class multimedia *-multimedia:0 UNCLAIMED description: Multimedia controller product: Intel Corporation vendor: Intel Corporation physical id: 5 bus info: pci@0000:00:05.0 version: 02 width: 64 bits clock: 33MHz capabilities: pciexpress pm cap_list configuration: latency=0 resources: iomemory:600-5ff memory:603c000000-603cffffff *-multimedia:1 description: Audio device product: Alder Lake PCH-P High Definition Audio Controller vendor: Intel Corporation physical id: 1f.3 bus info: pci@0000:00:1f.3 logical name: card0 logical name: /dev/snd/controlC0 logical name: /dev/snd/hwC0D0 logical name: /dev/snd/hwC0D2 logical name: /dev/snd/pcmC0D0c logical name: /dev/snd/pcmC0D0p logical name: /dev/snd/pcmC0D31p logical name: /dev/snd/pcmC0D3p logical name: /dev/snd/pcmC0D4p logical name: /dev/snd/pcmC0D5p logical name: /dev/snd/pcmC0D6c logical name: /dev/snd/pcmC0D7c version: 01 width: 64 bits clock: 33MHz capabilities: pm msi bus_master cap_list configuration: driver=sof-audio-pci-intel-tgl latency=64 resources: iomemory:600-5ff iomemory:600-5ff irq:200 memory:603ead8000-603eadbfff memory:603e900000-603e9fffff ** Affects: gnome-shell (Ubuntu) Importance: Undecided Status: New ** Tags: gnome-shell libmutter mutter segfault -- 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/2018455 Title: gnome-shell exits after screen lock / unlock & login segfault libmutter-12.so.0.0.0 in Ubuntu 23.04 on Lenovo X1 Carbon Gen10 Status in gnome-shell package in Ubuntu: New Bug description: The issue is happening 9 out of 10 times. It is hard to get a crash dump in /var/crash during this error though, but I found one from few days ago. Looks like should be relevant. I've reported it, see OOPS ID: b68253a2-ea4c-11ed-af33-fa163e55efd0 Laptop: Lenovo ThinkPad X1 Carbon Gen 10, model 21CB007WCK root@x1:~# uname -a Linux x1 6.2.0-20-generic #20-Ubuntu SMP PREEMPT_DYNAMIC Thu Apr 6 07:48:48 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux To reproduce: 1. Win+L to lock the session 2. Screen turns black as expected 3. Login back to your session 4. Welcome to the new & clean session... all unsaved work is lost! 5. see gnome-shell segfault in libmutter-12.so in dmesg root@x1:~# dmesg -T |grep segf [Thu May 4 17:45:04 2023] gnome-shell[2554]: segfault at ffffffffffffff78 ip 00007f3d10961115 sp 00007ffd72b85f78 error 5 in libmutter-12.so.0.0.0[7f3d1084a000+13d000] likely on CPU 0 (core 0, socket 0) [Fri May 5 14:09:43 2023] gnome-shell[24568]: segfault at 11 ip 00007f4c14161119 sp 00007ffd4590de28 error 4 in libmutter-12.so.0.0.0[7f4c1404a000+13d000] likely on CPU 9 (core 17, socket 0) Logs from "ubuntu-bug /var/crash/_usr_bin_gnome-shell.1000.crash" command May 04 09:24:31 x1 systemd[1]: Started whoopsie.service - crash report submission. May 04 09:24:31 x1 whoopsie[54307]: [09:24:31] Using lock path: /var/lock/whoopsie/lock May 04 09:24:31 x1 whoopsie[54307]: [09:24:31] Parsing /var/crash/_usr_bin_gnome-shell.1000.crash. May 04 09:24:31 x1 whoopsie[54307]: [09:24:31] Uploading /var/crash/_usr_bin_gnome-shell.1000.crash. May 04 09:24:32 x1 whoopsie[54307]: [09:24:32] Sent; server replied with: No error May 04 09:24:32 x1 whoopsie[54307]: [09:24:32] Response code: 200 May 04 09:24:32 x1 whoopsie[54307]: [09:24:32] Reported OOPS ID b68253a2-ea4c-11ed-af33-fa163e55efd0 It was difficult to figure how to send the report in Ubuntu 23.04, previously it was just working... but with Ubuntu 23.04 there was this error: May 04 09:21:33 x1 systemd[1]: Starting apport-autoreport.service - Process error reports when automatic reporting is enabled... May 04 09:21:33 x1 systemd[1]: Started whoopsie.service - crash report submission. May 04 09:21:33 x1 whoopsie[53709]: [09:21:33] Using lock path: /var/lock/whoopsie/lock May 04 09:21:33 x1 systemd[1]: whoopsie.service: Deactivated successfully. May 04 09:21:33 x1 whoopsie-upload-all[53708]: ERROR: whoopsie.path is not enabled May 04 09:21:33 x1 systemd[1]: apport-autoreport.service: Main process exited, code=exited, status=1/FAILURE May 04 09:21:33 x1 systemd[1]: apport-autoreport.service: Failed with result 'exit-code'. May 04 09:21:33 x1 systemd[1]: Failed to start apport-autoreport.service - Process error reports when automatic reporting is enabled. Fixed by changing "Send error reports to Canonical" (in gnome control panel -> "Privacy" -> "Diagnostics") from "Automatic" to "Never" and re-running the `ubuntu-bug` command again. gnome-shell 44.0-2ubuntu3 intel-media-va-driver:amd64 23.1.2+dfsg1-1 root@x1:~# lshw -class display *-display description: VGA compatible controller product: Alder Lake-P Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 logical name: /dev/fb0 version: 0c width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb configuration: depth=32 driver=i915 latency=0 mode=1920x1200 resolution=1920,1200 visual=truecolor xres=1920 yres=1200 resources: iomemory:600-5ff iomemory:400-3ff irq:199 memory:603d000000-603dffffff memory:4000000000-400fffffff ioport:2000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff root@x1:~# lshw -class multimedia *-multimedia:0 UNCLAIMED description: Multimedia controller product: Intel Corporation vendor: Intel Corporation physical id: 5 bus info: pci@0000:00:05.0 version: 02 width: 64 bits clock: 33MHz capabilities: pciexpress pm cap_list configuration: latency=0 resources: iomemory:600-5ff memory:603c000000-603cffffff *-multimedia:1 description: Audio device product: Alder Lake PCH-P High Definition Audio Controller vendor: Intel Corporation physical id: 1f.3 bus info: pci@0000:00:1f.3 logical name: card0 logical name: /dev/snd/controlC0 logical name: /dev/snd/hwC0D0 logical name: /dev/snd/hwC0D2 logical name: /dev/snd/pcmC0D0c logical name: /dev/snd/pcmC0D0p logical name: /dev/snd/pcmC0D31p logical name: /dev/snd/pcmC0D3p logical name: /dev/snd/pcmC0D4p logical name: /dev/snd/pcmC0D5p logical name: /dev/snd/pcmC0D6c logical name: /dev/snd/pcmC0D7c version: 01 width: 64 bits clock: 33MHz capabilities: pm msi bus_master cap_list configuration: driver=sof-audio-pci-intel-tgl latency=64 resources: iomemory:600-5ff iomemory:600-5ff irq:200 memory:603ead8000-603eadbfff memory:603e900000-603e9fffff To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2018455/+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