Please try to find an older kernel version that does boot, to see if there were any that didn't have the bug...
https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=M;O=D ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1902749 Title: [amdgpu] Log in screen flashes on and off until I log in To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1902749/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs