Test suggested by oria on IRC: try "nomodeset" in kernel parameter and try to reproduce the problem.
After the reboot: ``` $ uname -a Linux flhpz4 5.15.0-46-generic #49-Ubuntu SMP Thu Aug 4 18:03:25 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux $ cat /proc/cmdline BOOT_IMAGE=/boot/vmlinuz-5.15.0-46-generic root=/dev/mapper/vg0-system ro quiet splash vt.handoff=7 nomodeset ``` Remarks: 1. During the login, the choice "Ubuntu on Xorg" appears no longer (I don't know why). I can choose only "Openbox" or "Ubuntu". And I have chosen "Ubuntu" of course. 2. I have only one monitor which works (the HP monitor). The other monitor (Asus) is just ignored. And in this case, the automatic lock screen works correctly. I can find my running appli after a re-login. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1987209 Title: gnome-shell (Wayland) crashes when screen locker activates (jj) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1987209/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
