Bug#439322: xserver-xorg-video-ati: xrandr does not detect VGA monitor

Alex Deucher alexdeucher at gmail.com
Mon Aug 27 08:10:28 PDT 2007


On 8/27/07, Marcus Better <marcus at better.se> wrote:
> Alex Deucher wrote:
> > You only have two crtcs and you are trying to enable more than two
> > outputs.  turn off tv if you want to enable VGA.
>
> Yes, that helps, but why is it enabling S-video in the first place? I don't
> have anything connected there.

Your computer shares the tvdac between the vga port and the tv, since
they share a dac, load detection for either can result in false
positives for the other.  I think I'll probably just disable load
detection for tv for all radeons where it is not dedicated as several
people have run into this.

Alex




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