I tested some more. After logging out and receiving the broken video mode, I can press ctrl+alt+F2 and get a textmode login screen. If I then immediately press ctrl+alt+F1 I get to the graphic login screen, and can login again. Pressing ctrl+alt+F1 directly at the broken video mode does nothing, though. I'm attaching the output of 'journalctl' (without -b 1 as I did not need to reboot) (output compressed with bzip2)
** Attachment added: "output of 'journalctl' compressed with bzip2" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1926023/+attachment/5492535/+files/journalctl.bz2 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1926023 Title: display broken on logout To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1926023/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp