It's not a kernel bug. The nvidia driver keeps the contents of the GRUB screen and the first two lines of kernel log visible as a frozen static picture.
Deinstall and reinstall of nvidia drivers fixed the issue. ** Changed in: linux (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1820695 Title: 5.0.0 kernels (5.0.0-7 and 5.0.0-8) don't boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1820695/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs