I think either: * "Page flip callback for CRTC" is following a path that never reaches try_post_latest_swap(); or
* meta_monitor_manager_get_power_save_mode() is returning something other than ON while the external monitor is plugged in, causing try_post_latest_swap() to defer the next frame forever. Is the problem with only one specific model of monitor? In both cases setting MUTTER_DEBUG_DISABLE_TRIPLE_BUFFERING=1 would probably avoid the bug. -- 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/1976204 Title: Screen freeze To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1976204/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
