http://wiki.cchtml.com/api.php?action=feedcontributions&feedformat=atom&user=88.117.97.214cchtml.com - User contributions [en]2026-06-10T11:05:45ZUser contributionsMediaWiki 1.44.3http://wiki.cchtml.com/index.php?title=Performance_Issues&diff=3633Performance Issues2008-02-19T19:31:25Z<p>88.117.97.214: /* 2D */</p>
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<div>The '''fglrx''' driver is not known for its speedy 2D or 3D performance, but there are ways to improve it.<br />
<br />
==2D==<br />
If you suffer from slow 2D speed it might help to set<br />
<br />
Option "XaaNoOffscreenPixmaps" "true"<br />
<br />
in the fglrx device section of ''/etc/X11/xorg.conf''.<br />
<br />
This might also help the pixel errors in the lower right corner that occur on some machines.<br />
It disables 2D accaleration almost completly and let the CPU do all the rendering. Hopefully the driver will provide better XRender accaleration soon.<br />
<br />
Is required to run compiz.<br />
<br />
==3D==<br />
If you plan to run Wine, you will need to tell fglrx to not corrupt the fs register.<br />
To do this, add the line:<br />
<pre><br />
Option "UseFastTLS" "2"<br />
</pre><br />
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</div>88.117.97.214