Black images after "R clamp mode" changes (Mobility X1600)

[Coleman Kane]

I see this behavior on my RS690 (X1270) for some images in firefox.

On Sat, 2009-04-25 at 10:04 +0200, Andrea wrote:
> Hi there,
> 
> I'm using latest git and I'm having some troubles with recent changes about "R
> clamp mode."
> 
> After the two commits "r300/r500: set R clamp mode" and "r3xx/r5xx: fix typo in
> last commit" the driver is almost unusable. I can't see ANY text: i.e. X starts,
> windows show correctly but there is no text at all. Now, after commit "radeon:
> attempt to fix R clamping for repeat again" it goes better, the text is back but
> I've problems with the visualization of scaled images in Fireox. Many images
> appear all black or partially black.
> 
> After reverting these commits all work well.
> 
> I'm using a Mobility X1600:
> 
> # lspci | grep ATI
> 01:00.0 VGA compatible controller: ATI Technologies Inc M56P [Radeon Mobility X1600]
> 
> Thanks for your work!
> 
> Andrea
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