Thanks for that. The log in comment #12 shows these errors which may explain it:
-------- Mär 22 01:57:12 aletheia systemd[1]: systemd-logind.service: Watchdog timeout (limit 3min)! Mär 22 01:57:12 aletheia systemd[1]: systemd-logind.service: Killing process 1501 (systemd-logind) with signal SIGABRT. ... Mär 22 01:57:12 aletheia systemd[1]: systemd-logind.service: Main process exited, code=killed, status=6/ABRT ... Mär 22 01:57:13 aletheia /usr/lib/gdm3/gdm-x-session[2486]: (EE) Mär 22 01:57:13 aletheia /usr/lib/gdm3/gdm-x-session[2486]: Fatal server error: Mär 22 01:57:13 aletheia /usr/lib/gdm3/gdm-x-session[2486]: (EE) systemd-logind disappeared (stopped/restarted?) ... Mär 22 01:57:13 aletheia systemd-logind[95934]: Failed to restore VT, ignoring: Bad file descriptor -------- And yes we expect "Fn+Ctrl+Alt+F??" to fail in this case because the processes which implement that combo have failed. To be sure we're on the right track, please reboot, wait for the bug to occur again, and then redo: journalctl -b-1 > prevboot.txt ** Also affects: systemd (Ubuntu) Importance: Undecided Status: New ** Changed in: systemd (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/1965219 Title: gnome lock screen does not permit reentering password Status in gnome-shell package in Ubuntu: Incomplete Status in systemd package in Ubuntu: Incomplete Bug description: Initially, only the mouse works in the gnome lock screen, without any way to get a password prompt. It's likely only happening when returning from suspend with lid open. It's possible to ssh into the machine or to press Fn+Ctrl+Alt+F?? and login without gnome. After this, Fn+Ctrl+Alt+F1 brings up a purple ubuntu login screen, but then after login you simply return to the lock screen with no working keyboard. I never found any method to force unlock from ssh or another vt though, so this always still required a reboot, or killing all of gnome. I've randomly tried some solutions from https://askubuntu.com/questions/1242110/after-upgrading-to- ubuntu-20-04-lockscreen-not-working including reinstalling many gnome components. After this, the behavior initially disappeared by returning from suspend merely took a long time, like 30 seconds or 1 minute. It's possible the delay stems from memory size, but a previous identical lenovo x1 had no such problems. I've now a worse problem just a few hours later where unsuspend went directly to a purple ubuntu login screen, but neither the mouse nor keyboard worked. I've not yet been able to test ssh on this problem. It's possibly all connected to recent firmware upgrades, so I'm happy to try downgrading the firmware, but I've not found any instructions on doing so, or even identifying the firmware upgrade log. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.14.0-1027.30-oem 5.14.21 Uname: Linux 5.14.0-1027-oem x86_64 ApportVersion: 2.20.11-0ubuntu27.21 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Thu Mar 17 03:44:49 2022 DistUpgraded: Fresh install DistributionChannelDescriptor: # This is the distribution channel descriptor for the OEM CDs # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-sutton-focal-amd64-20210412-218+sutton-newell-focal-amd64+X00 DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GpuHangFrequency: Several times a day GpuHangReproducibility: Occurs more often under certain circumstances GpuHangStarted: Within the last week or two GraphicsCard: Intel Corporation Device [8086:9a49] (rev 01) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:22d5] InstallationDate: Installed on 2021-04-15 (335 days ago) InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20210412-22:07 MachineType: LENOVO 20XWCTO1WW ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.14.0-1027-oem root=UUID=6a411137-06bb-4de1-be93-c2fcd4f44a5a ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/02/2021 dmi.bios.release: 1.51 dmi.bios.vendor: LENOVO dmi.bios.version: N32ET75W (1.51 ) dmi.board.asset.tag: Not Available dmi.board.name: 20XWCTO1WW dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.32 dmi.modalias: dmi:bvnLENOVO:bvrN32ET75W(1.51):bd12/02/2021:br1.51:efr1.32:svnLENOVO:pn20XWCTO1WW:pvrThinkPadX1CarbonGen9:rvnLENOVO:rn20XWCTO1WW:rvrNotDefined:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20XW_BU_Think_FM_ThinkPadX1CarbonGen9: dmi.product.family: ThinkPad X1 Carbon Gen 9 dmi.product.name: 20XWCTO1WW dmi.product.sku: LENOVO_MT_20XW_BU_Think_FM_ThinkPad X1 Carbon Gen 9 dmi.product.version: ThinkPad X1 Carbon Gen 9 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.107-8ubuntu1~20.04.2 version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.6-0ubuntu0.1~20.04.2 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1965219/+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