Please try adding kernel parameter: i915.enable_psr=0 Although if kernel 5.13 works then I suspect it may be a relation of bug 1965882. As I dig deeper into that one it seems like a general kernel bug that's not specific to nouveau at all.
** Package changed: plymouth (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
