blank external DVI on Thinkpad T40

Gilad Arnold arnold at cs.berkeley.edu
Wed Feb 25 12:57:42 PST 2009


Also, let me know if you'd like to see my xorg.conf or log file. Many
thanks for your help so far.

Gilad


On Wed, Feb 25, 2009 at 12:56:56PM -0800, Gilad Arnold wrote:
> On Wed, Feb 25, 2009 at 03:32:58PM -0500, Alex Deucher wrote:
> > Also, IIRC, the DVI port on the IBM docking station is only supposed
> > to support a max resolution of 1280x1204 or 1600x1200.  It might be a
> > limitation of DVI traces or connector in the docking station.
> 
> I'm not sure. As I said, the DVI port used to work fine at 1900x1200
> prior to Xorg 1.3. Of course, back then the LVDS was disabled in the
> presence of an external DVI.
> 
> > Either of those should work.  You'll have to have another monitor
> > plugged in if you ignore the LVDS or it won't find any attached
> > monitors.
> 
> The ignore option led to the aforementioned error, although I did have
> the external DVI monitor connected. I can try again with VGA-0 connected
> as well but suspect that the result will be the same.  The xrandr --off
> option did shutdown the LVDS, but did not help de-blanking the DVI...
> 
> Has anyone had any positive experience with a similar setting? Perhaps
> it is a driver issue to start with? (fglrx does a better job with
> managing multiple displays?)
> 
> Gilad



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