Bug#443585: switching to s-video sets LVDS and S-Video brightness to max and inverts colors

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

Nadav Kavalerchik wrote:
> Package: xserver-xorg-video-ati
> Version: 1:6.7.193-1
> Severity: normal
>
> --- Please enter the report below this line. ---
> when i switch to S-Video from LVDS using Fn4 all seems ok at first, BUT when i 
> move the mouse or click it or click the keyboard... both the LVDS and S-Video 
> (TV Screen) gets color inverted and full brightness.
>
> and the mouse turns to a huge black box.
>
> by pressing Fn4 and cycling through the modes i get clear view again, UNTIL i 
> hit any key or move the mouse, again. and so on...
>   

You might want to not use Fn4. These keys generally talk to the BIOS
which change things in the back of the driver. So we can definitely
expect some problems here. Could you try switching with xrandr instead?
The following line should enable TV-out and disable LVDS:
   xrandr --output LVDS --off --output S-video --auto

Brice