Hi! I'm sorry I was unclear. I meant that I was on just "Ubuntu" and then switched to "Ubuntu on Wayland". Sadly this didn't help, so I created the bug report.
Today I tried installing Ubuntu in Legacy mode. This didn't help. Again, the graphic safe installer works normally but not the normal installer. How shall we continue debugging? Best regards and thank you for your responses! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939173 Title: [HP 120-1100eo API] Screen flickering white vertical lines To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1939173/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs