Problem in 10.2 with external VGA on radeon 7500, IBM A31 laptop

Hello,

a friend of mine  is running opensuse 10.2 on his IBM A31. He has problems 
using the external VGA port as a second display cloning the main screen using 
the default Xorg video drivers (tried both "ati" and "radeon"). The video 
card is a Radeon 7500 card sometimes also called Radeon LW.

Basically X is running fine. I configured X using sax2 and enabled clone mode 
in a resolution of 1024x768. The primariy display runs fine however the 
external monitor that should display a 1024x768 desktop is simply black. 

It seems to get a signal however, since you can see it flickering a very short 
while when X starts but then its completely black, no matter what you do on 
the laptops primary display which is running fine. 

When you connect a second monitor and then reboot you see a cloned picture on 
both displays even when X has started. However in this case on the external 
monitor the resolution is 1024x768 but the desktop is larger so on the second 
display you only see part of the desktop and you have to "scroll" around. 
Once you unplug the external monitor and then restart the X-Server you will 
never see anything but blackness on the external display until you reboot.

Does anyone know a solution to this? 

Thanks very much
Rainer Krienke
-- 
---------------------------------------------------------------------------
Rainer Krienke, Universitaet Koblenz, Rechenzentrum, Raum A022
Universitaetsstrasse 1, 56070 Koblenz, Tel: +49 261287 -1312, Fax: -1001312
Mail: [email protected], Web: http://www.uni-koblenz.de/~krienke
Get my public PGP key: http://www.uni-koblenz.de/~krienke/mypgp.html
---------------------------------------------------------------------------

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (GNU/Linux)

iD8DBQBFo0Dnaldtjc/KDEoRAt4eAJ9Np14l1pI9+5JP67+edOP8L3VaLgCgomPo
5xrO+CdJddML4il8KXiufpg=
=KuVM
-----END PGP SIGNATURE-----