Thanks Bryce, I've made a minor clarification to the description.
-intel has always been fine (it used to fall back to software, but it has hardware acceleration since commit 128223ee9b7880e640056475462eca9a88415492)
-nv doesn't accelerate the composite operation at all, so it's fine
I only checked the drivers that are dependencies of xserver-xorg-video-all (that's why I initially missed radeonhd). I'll have a look at the universe drivers now, too. nouveau is the second driver I found to implement the various extends mode correctly, by the way..
Thanks Bryce, I've made a minor clarification to the description.
-intel has always been fine (it used to fall back to software, but it has hardware acceleration since commit 128223ee9b7880e 640056475462eca 9a88415492)
-nv doesn't accelerate the composite operation at all, so it's fine
I only checked the drivers that are dependencies of xserver- xorg-video- all (that's why I initially missed radeonhd). I'll have a look at the universe drivers now, too. nouveau is the second driver I found to implement the various extends mode correctly, by the way..