In the log of comment #6 it looks like you managed a soft reboot rather than the hard reboot I was expecting. That's good news for you but made understanding the log a bit more difficult. It appears the problem you hit was a gnome-shell crash:
Oct 18 12:52:58 fluffy gnome-shell[4425]: The program 'gnome-shell' received an X Window System error. This probably reflects a bug in the program. The error was 'BadRROutput (invalid Output parameter)'. (Details: serial 1470 error_code 145 request_code 139 (RANDR) minor_code 30) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the GDK_SYNCHRONIZE environment variable to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) Oct 18 12:52:58 fluffy kernel: traps: gnome-shell[4425] trap int3 ip:7f0e88877647 sp:7ffe8b7aa5a0 error:0 in libglib-2.0.so.0.6800.1[7f0e88834000+8d000] So once you manage to report your .crash files (using apport-cli), please provide a link to what it created. -- 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/1947194 Title: When using Wayland in 21.04, the display often never wakes up after lock Status in mutter package in Ubuntu: Incomplete Bug description: When using Wayland in 21.04, the display often never wakes up after lock up. Also, on boot up, desktop icons and most favorites on dash are not displayed, even though desktop icons are enabled. I can get them to show up only by re-enabling desktop icons. The workaround now is to disable Wayland, and the original xorg server works fine. The display driver is: 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) The monitor is an HP 22cwa running of of a displayport interface. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: xorg 1:7.7+22ubuntu1 ProcVersionSignature: Ubuntu 5.11.0-37.41-generic 5.11.22 Uname: Linux 5.11.0-37-generic x86_64 ApportVersion: 2.20.11-0ubuntu65.3 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: unknown CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Thu Oct 14 14:32:26 2021 DistUpgraded: 2021-07-28 16:05:54,589 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py' DistroCodename: hirsute DistroVariant: ubuntu DkmsStatus: virtualbox, 6.1.26, 5.11.0-36-generic, x86_64: installed virtualbox, 6.1.26, 5.11.0-37-generic, x86_64: installed ExtraDebuggingInterest: No GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell 2nd Generation Core Processor Family Integrated Graphics Controller [1028:047e] InstallationDate: Installed on 2018-12-04 (1044 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) MachineType: Dell Inc. OptiPlex 990 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-37-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to hirsute on 2021-07-28 (77 days ago) dmi.bios.date: 11/24/2011 dmi.bios.release: 4.6 dmi.bios.vendor: Dell Inc. dmi.bios.version: A10 dmi.board.name: 06D7TR dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA10:bd11/24/2011:br4.6:svnDellInc.:pnOptiPlex990:pvr01:sku:rvnDellInc.:rn06D7TR:rvrA00:cvnDellInc.:ct6:cvr: dmi.product.name: OptiPlex 990 dmi.product.version: 01 dmi.sys.vendor: Dell Inc. version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.105-3~21.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3 version.libgl1-mesa-glx: libgl1-mesa-glx 21.0.3-0ubuntu0.3 version.xserver-xorg-core: xserver-xorg-core 2:1.20.11-1ubuntu1.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200714-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1947194/+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