Laptop doesn't show X on Beamer

[alan]

On Thu, 6 Apr 2006, Jochen Wiedmann wrote:

> Hi,
>
> after upgrading to FC5, I noticed that I can no longer attach my
> laptop to a Beamer, which has been possible before. More precisely:
>
> - I do change the screen resolution to 1024x768, because I know that the Beamer
>  supports it.
> - I do a reboot.
> - The system comes up in text mode, which is displayed on the Beamer,
> as it should.
> - As soon as I start X, the display is gone away.
>
> Any ideas?

What video card do you have and what model laptop?

I have an HP zv5200. To get the video to work with my TV, I have to 
connect the cables before I turn on the laptop.  (Otherwise it does not 
like to figure out which of the three outputs are connected.)  Then, when 
it is booting, I have to hit the key combination to get the bios to switch 
to the other video source.  If I have it on both the laptop and the tv 
out, it does not work in X.  If I have it directed to only the output, it 
works with X.  (I believe it is trying to set the video mode to something 
higher than the TV will handle.)

Note that I am using the closed source nVIDIA driver for X, not the open 
source one.  It takes a bit of patching/hackery to get it to build.  (The 
patch and instructions are available on nVIDIA's Linux forum.)

Since I don't know what kind of equiptment you are using, I don't know if 
this will help or not.

Hopefully it does...

-- 
"Remember there is a big difference between kneeling down and bending over." - Frank Zappa