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I have an AMD Radeon HD 7770 and I am using the open source ATI driver (xf86-video-ati). Currently, when doing things like resizing windows, creating windows or scrolling there seems to be a draw lag (not sure if that's what this is called).
Example video when closing windows with dwm. (Sorry it isn't embedded, couldn't find a temporary video upload embed site)
This seems to happen with DEs too (cinnamon for example).
I'm not entirely sure what this problem is actually called so I haven't been able to research possible fixes. I have tried this from the Arch Wiki though and that hasn't helped at all.
Any pointers would be greatly appreciated.
Last edited by oarmstrong (2014-01-12 18:59:38)
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I've managed to find a solution. The problem was Xorg (or the driver) selected glamor as the 2D acceleration method, which according to this bug is incredibly slow. Definining Option "AccelMethod" "EXA" in my radeon Xorg tweak conf fixed the problem entirely.
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