This time I turned off the displayed, unplugged it, then left it unplugged while I rebooted. After rebooting and logging in, I turned on the display and plugged it in. Attached is the dmesg from this boot.
** Attachment added: "dmesg from functional boot" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1830792/+attachment/5270411/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1830792 Title: [i915] Rotated display is overscaled and overdrawn while i915 crashes repeatedly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1830792/+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