Dual monitor with ATI 9800Pro crashes
 

Hello there,

(first time post and Linux newbie)

I tried for days now, browsing forums, but no solution so far. Maybe someone here can give a hint?

My ATI 9800 Pro is connected to a 20' TFT (digital) and a 19' TFT (analog); I'm running Suse 9.3 and the ATI driver 8.13.14; desperate to get the Dual Screen funktionality running.

My problem seems to be the configuration of the xorg.config. The two monitors are configured as precise as I could do. Right now I receive a 1600x1200 resolution on both screens (the 19' scrolls a little, copies *exactly* the 20' picture), because the second device still points to Screen0 (being the first screen). THE PROBLEM: As soon as I correct this setting to point to Screen1 (the second screen) and restart X-Windows, the system crashes bigtime (Black, rien ne vas plus, no new console possible).

The xorg.config fragment in question:

Has anybody an idea what I am doing wrong here? Any help is greatly appreciated...:-)

Regards
waldemar

I've had zero luck getting ATI's fglrx driver to work with multiple devices. You didn't include your /var/log/Xorg.0.log errors, but I suspect your crashes are similar to mine.

SUGGESTION:
Try the built-in radeon driver instead of ATI's fglrx. I suspect you'll be able to get multiple devices with no problem.

PS:
Do you have one card, or two? If you've got one card, have you tried just one "Device" section? If you've got two cards, do they really have the same PCI bus/device/fn IDs?

I have a 9800 Pro but I haven't tried dual-head yet.

However, paulsm4 may have spotted the problem - the BusIds are not the same, the second head should be 1:0:1. At least, my primary head is on 1:0:0 and my secondary head is on 1:0:1, according to lspci.