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-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/2070437 Title: Debug mode MUTTER_DEBUG_TRIPLE_BUFFERING=always doesn't work anymore Status in mutter package in Ubuntu: Fix Released Status in mutter source package in Noble: Fix Released Status in mutter source package in Oracular: Fix Released Bug description: [ Impact ] Debug mode MUTTER_DEBUG_TRIPLE_BUFFERING=always doesn't result in triple buffering being used anymore. [ Test Plan ] 1. Add MUTTER_DEBUG_TRIPLE_BUFFERING=always to /etc/environment 2. Reboot. 3. Log into a Wayland session. 4. Open a Terminal window and drag it in circles with the mouse. 5. Verify there is a slight lag between the mouse pointer position and the window position. This means it's always triple buffering (or you accidentally logged into a Xorg session). [ Where problems could occur ] Anywhere in frame scheduling, including screen freezes and stutter. [ Other Info ] This regression occurred in 46.0 as a result of jbicha and myself working a little too independently. Jeremy identified that the upstream branch supported 46 and cherry-picked that for the Noble release, while I was still working on creating a stable maintenance branch for 46 in https://gitlab.gnome.org/Community/Ubuntu/mutter/-/tree/triple- buffering-v4-46 Fortunately it's very low priority and nobody has actually reported it. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2070437/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
