Mailinglist Archive: radeonhd (312 mails)

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http://bugs.freedesktop.org/show_bug.cgi?id=20892





--- Comment #8 from Alain Perrot <alain.perrot@xxxxxxxxx>  2009-04-13 03:42:15 
PST ---
(In reply to comment #7)
> Can you narrow down the problem to a particular accel hook?  try the following
> options to selectively disable hooks:
>
> Option "EXANoComposite"
> Option "EXANoUploadToScreen"
> Option "EXANoDownloadFromScreen"

I have just tried these options with latest radeonhd driver from git.

I have tested with each option alone, with the three options together, and with
both EXANoUploadToScreen and EXANoDownloadFromScreen.

In all cases, the result is the same as with none of these options: the
background corruption is still there (on a side note, EXANoDownloadFromScreen
has a major impact on performance).

One more thing I have just noticed, enabling KWin 4.2 desktop effects using
XRender composition (since OpenGL is not possible yet on R6xx) reduces
significantly the background corruption (I've only tested this with none of the
three options). But XRender desktop effects have an impact on performances with
the radeonhd driver while they run smoothly with the radeon (xf86-video-ati)
driver.


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