External DVI vs. External VGA

[Alex Deucher]

On 3/26/07, Eric Anholt <eric at anholt.net> wrote:
> On Sun, 2007-03-25 at 20:16 -0700, Keith Packard wrote:
> > On Mon, 2007-03-26 at 12:47 +1200, Andrew McMillan wrote:
> > > Hi,
> > >
> > > I am using version of 1.9.92 -video-intel (patched to handle the
> > > 1440x1050 resolution) and have my external LCD panel working when I
> > > connect it to the VGA connector in my laptop, or the VGA connector in my
> > > docking station.  These seem to be equivalent.
> > >
> > > However I can't seem to get it to work using the DVI connector in my
> > > docking station.
> >
> > I've wondered whether that would work; I have a similar laptop, but
> > haven't got the docking station.
> >
> > > xrandr does not list the DVI at all.  Here's the output:
> >
> > That's not encouraging; that means the X server didn't detect an SDVO
> > chip. Could you post the Xorg.0.log file so we can see what the driver
> > did?
>
> Previous Intel laptops we've seen which are compatible with docks that
> happen to have DVI ports have not mentioned support for docked DVI (only
> VGA) in their documentation.
>

The DVI port on the thinkpad docks only work with the ati based
thinkpads, FWIW...

Alex