I’ve had some annual leave and been busy on other tasks.Īnyway, I’ve just installed Ubuntu MATE 18.04 daily on one of my test laptops. So Compiz then handles it and avoids tearing in your fullscreen Sorry for the delay in reply. But you can fix that tearing in CompizConfig Settings Manager > General > Composite > and adding the app to the filter that doesn’t get “unredirected”. We prefer performance over having an extra level of indirection. It sounds like you’re using something that’s not Gnome/Unity/Compiz?.Ĭaveat: Fullscreen apps may tear in Unity/Compiz still because of the Xorg architecture. And compiz has done that by default since ~2012. The correct fix is to get your compositor to use proper fullscreen buffer swapping that is synchronized to vblank. We fixed tearing in Ubuntu (using DRI2) years ago. Your justification for wanting DRI3 “to eliminate screen tearing” doesn’t sound right though. So I guess just make sure xdpyinfo is telling you that both are supported and not just one, or else you will lose accelerated video decoding in your Xorg sessions. DRI3 only caused issues for libva which can only do DRI2. There it seems to be pretty solid thanks to Mesa being kept in step with it. Worth noting that in the default Wayland session “Ubuntu”, Xwayland only offers DRI3 support.
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