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On Sat, 22 Aug 2015 04:08:41 +0200 |
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<wabenbau@×××××.com> wrote: |
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> I'm using XFCE as DE and xfwm4 as WM. Since I bought a new GPU (Radeon |
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> R7 250), I don't use compositing any more because it causes tearing |
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> when I watch videos in fullscreen with 3840x2160. With this GPU I |
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> also had some random freezes when compositing was enabled. |
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> |
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> Beside this, performance is very good, regardless compositing is |
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> enabled or disabled. Scrolling text or moving windows around is a bit |
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> faster and smoother with compositing enabled, especially when other |
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> windows are in the foreground. |
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> |
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> With my old GPU (Radeon HD4550) I always had compositing enabled. |
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> Everything was smoother and I saw absolutely no glitches, but |
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> performance was also good with compositing disabled, just not quite |
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> as smooth as with |
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I forgot about xf86-video-ati until you mentioned it, so I just emerged |
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it and (I think) made all the changes needed to reconfigure Xorg to use |
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it instead of fglrx. |
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Maybe I'm just too tired right now to think straight, but the error |
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messages I see in Xorg.log tell me that my video chip is not supported. |
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But, in the process of switching to xf86-video-ati and then back again |
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to fglrx I noticed this error message from xfwm4: |
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"Error opening /dev/dri/card0: No such file or directory" |
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Correct, I have no /dev/dri directory. Do you have one? |
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