The problem has gone away and direct scanout is working. Now I get 60 FPS fullscreen.
I can only imagine direct scanout wasn't being used for some reason because if I disable that then I can synthesise this bug again. But under those circumstances it's really bug 2017097. ** Changed in: glmark2 (Ubuntu) Status: New => Incomplete ** Changed in: mesa (Ubuntu) Status: New => Incomplete ** Changed in: mutter (Ubuntu) Status: New => Incomplete -- 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/2017090 Title: [raspi] glmark2-wayland --fullscreen stutters visually while reporting hundreds of FPS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glmark2/+bug/2017090/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs