MUTTER_DEBUG_DISABLE_TRIPLE_BUFFERING=1 can still reproduce the issue. MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0 gdm3 can't up successfully.
** Attachment added: "drminfo.txt" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1967274/+attachment/5575522/+files/drminfo.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/1967274 Title: Screen can't turn on after screen off [Failed to post KMS update: CRTC property (GAMMA_LUT) not found] To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1967274/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
