Thanks for all that. It appears the problematic monitor is: VGA-1 connected 1200x1920+0+0 left (normal left inverted right x axis y axis) 519mm x 324mm 1920x1200 59.95*+
My first suspicion is that "VGA" is the first problem there. The overdrawing of letters/pixels suggests a signal or mode problem that you would probably only encounter with an analog connection like VGA. So this could be a hardware/cable problem, or even a kernel driver problem. Not sure. ** Summary changed: - Ubuntu display is corrupted, never recovers + Rotated display is overscaled and overdrawn ** Changed in: gnome-shell (Ubuntu) Status: Incomplete => New ** Also affects: mutter (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1830792 Title: [i915] Rotated display is overscaled and overdrawn To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1830792/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs