Difference between revisions of "Performance Issues"

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(Undo revision 6843 by Mooninite (talk))
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The '''fglrx''' driver is not known for its speedy 2D or 3D performance, but there are ways to improve it.
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I found msylef nodding my noggin all the way through.
 
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==2D==
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If you suffer from slow 2D speed it might help to set
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Option "XaaNoOffscreenPixmaps"                "true"
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in the fglrx device section of ''/etc/X11/xorg.conf''.
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This might also help the pixel errors in the lower right corner that occur on some machines.
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It disables 2D acceleration almost completly and let the CPU do all the rendering. Hopefully the driver will provide better XRender acceleration soon.
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Is required to run compiz.
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==3D==
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If you plan to run Wine, you will need to tell fglrx to not corrupt the fs register.
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To do this, add the line:
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<pre>
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Option "UseFastTLS" "2"
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</pre>
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to the "Device" section in ''/etc/X11/xorg.conf''.  This supposedly causes about a 10% hit in opengl benchmark scores, but at least things don't crash.  See also http://wiki.winehq.org/fglrx and http://www2.ati.com/drivers/firegl/readme0325.txt
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Revision as of 19:41, 7 November 2011

I found msylef nodding my noggin all the way through.