Bug#481548: xserver-xorg-video-ati: XVideo gamma curve is wrong for at least r300 chips

[Brice Goglin <Brice.Goglin@ens-lyon.org>]

Tobias Diedrich wrote:
> Package: xserver-xorg-video-ati
> Version: 1:6.8.0-1
> Severity: normal
> Tags: upstream patch
>
>
> Hi,
>
> I noticed that there are very visible steps in the video overlay in dark
> scenes.  After investigating I found this to be a problem with the video
> overlay (XVideo), since software-converted YV12 looks fine compared with
> the overlay.
> Also, when using other gamma values than 1.0, I would get a pink
> overlay.
> After playing with the driver and graphics registers a bit,
> I found the gamma tables in radeon_video.c to be wrong for my two cards:

Can you try 6.8.191 ? There are some Gamma fixes for r300 in there.

Brice