** Description changed: [ Impact ] Some multi-monitor setups using GNOME 50 in Ubuntu 26.04 experience corruption on one monitor and/or repeating log messages: gnome-shell[5444]: Failed to lock front buffer on /dev/dri/card1: gbm_surface_lock_front_buffer failed gnome-shell[5444]: Failed to query buffer age, got error 3003 The problem sometimes starts slowly with just the "Failed to lock front buffer" message a few times. [ Test Plan ] Known prerequisites for the bug: - * Mesa version < 26.2 + * Mesa version < 26.1.2 * Using multiple monitors (seems to be required but maybe not in all cases) * Using Intel or AMD graphics for some or all displays There is no known test case that can reproduce it with certainty even with the above prerequisites, so we currently rely on affected users to give us feedback on what works. [ Where problems could occur ] The fix affects front buffer management in Mesa so could potentially impact any graphics users in any desktop environment in unpredictable ways. [ Other Info ] Potential overlap with AMD bug 2148088 could confuse some users. People might be affected by one bug and be commenting in the other, or could be affected by both bugs simultaneously.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2152207 Title: Failed to lock front buffer on /dev/dri/card1: gbm_surface_lock_front_buffer failed | Failed to query buffer age, got error 3003 To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/2152207/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
