I am also able to reproduce this bug. I logged in via ssh and collected journal logs and drm_info while the screen was blank and unrecoverable.
MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0 does in fact solve the issue for me. ** Attachment added: "drm_info.txt" https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1968040/+attachment/5708895/+files/drm_info.txt -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1968040 Title: [i915] Blanked screen doesn't wake up after locking [drmModeAtomicCommit: Argument invalide] [drmModeAtomicCommit: Invalid argument] To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1968040/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
