Bug#600979: xserver-xorg-video-radeon: with a secondary user login via a new gdm session video playing colour is too dark

[david b]

Package: xserver-xorg-video-radeon
Version: 1:6.13.1-2
Severity: normal

Story: watch a video on secondary x session.
As An admin
I want to let other users use my system and let them watch videos
So that they won't get too bored ;) 

When I start a new session as another user via gdm
And I try play a video using vlc. 
Then I see a dark version of the video shown.

The above should be:
When I start a new session as another user via gdm
And I try play a video using vlc. 
Then I see the video.

It doesn't matter which video player I use.

-- System Information:
Debian Release: 5.0.6
  APT prefers stable
  APT policy: (900, 'stable'), (600, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.36 (SMP w/4 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash