Rotate trouble on r300 (was: Re: XRandR rotate support HW rotate or not?)

[Xavier Bestel]

Le samedi 01 novembre 2008 à 14:51 +0100, Xavier Bestel a écrit : 
> Le samedi 01 novembre 2008 à 12:25 +0100, Michel Dänzer a écrit :
> > On Fri, 2008-10-31 at 19:17 +0100, Xavier Bestel wrote:
> > > BTW, does anyone know why rotating the screen doesn't play well with
> > > compiz on an r300 ? The screen looks garbled (like if the framebuffer
> > > wasn't rotated so the pitch is all wrong), every second image (e.g. when
> > > you move the cube slowly, one image is perfect, the next one is
> > > garbled).
> > 
> > Does disabling tiling and/or page flipping help?
> 
> Disabling page flipping helps a lot, thank you !
> Now it works perfectly well.
> I didn't try disabling tiling yet. Should I ?

Oh, and here is the log with page flipping enabled.
The only meaningful diffs I saw with page flipping disabled (apart that
it works) are:

-(**) RADEON(0): Option "EnablePageFlip" "true"
+(**) RADEON(0): Option "EnablePageFlip" "false"
-(**) RADEON(0): Page Flipping enabled
+(**) RADEON(0): Page Flipping disabled
-(II) RADEON(0): Damage tracking initialized for page flipping

HTH,
	Xav
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