Disabling Laptop Monitors

[R.L.Reingard]

> Am 24.10.2005, 14:40 Uhr, schrieb David Guard <dmguard at iinet.net.au>:

> I am currently trying to use an Acer 521iT laptop as a terminal box and
> have a Polyview monitor and a keyboard and mouse which I have configured
> to run with the laptop.

> I am having a problem getting the display to be anything other than
> 800x600 at 85hz. I tried fiddling with xorg.conf to allow other
> resolutions and VertRefresh rates but apparently the laptop "panel"  
> won't allow this
> and the logs contain this :
>
> (II) ATI(0): Not using default mode "1024x768" (exceeds panel
> dimensions)
>
> This causes both monitors to run at 800x600 and 85Hz. So the laptop
> monitor is capping off what both monitors run at.
>
> How can I get the Polyview to run at a higher resolution?

i do almost have the same problem with an external monitor connected to a  
laptop.
would be nice if someone can share light on that,
regards,
René