I am having the same problem on my Dell Latitude C600. It has the ATI Rage
Mobility 128 adapter and I am running X 4.0.3. It has been suggested to me
that I upgrade to 4.1.0 and add this to my XF86Config file under the 'Device'
Section (this won't work on 4.0.3):
BoardName "Rage 128 Mobility"
(some lines cut out)
I tried upgrading to 4.1.0 (both binary AND source distros), but it completely
trashed X and I had to reinstall my distro all over again to make it work
again. You may wish to try it yourself, but you've been warned. Apparently
however, this solution has worked for other people having this problem. I
hope this helps,
> I have a Compaq Armada M700 ATI Rage Mobility adapter. X runs fine on the
> laptop monitor. When I use the docking station( direct passthru on the
> video ) at boot time the external monitor works fine. When i start the
> the X Window would be displayed on the laptop monitor, not on the external
> What can I do, that the XFree86 use the external Monitor?