[XFree86] Dual monitor trouble

[Arnout Standaert]

Hi list,

I'm fairly new working with Linux now, but I've encountered a problem that seems like a challenge for more experienced linux'ers, which I'm sure are present here.

I've got a dual monitor setup, one on an AGP Radeon 7500, another one on a PCI Nvidia Geforce 2 Card. I've got XFree 4.1.0.1 installed (comes with debian woody) and can get both cards working apart from each other (the Radeon works through a ChipId entry in XF86Config that fakes it to be a Radeon VE).

So far so good, then I followed the Xinerama HOWTO to get a dual monitor system, got the separate Device and Monitor sections, adjusted the ServerLayout. Now the problem:
Boot computer -> first time startx: everything works, dual monitor as i wanted
As soon as I shut down the Xserver, the screen on the Radeon shows a console message "RV200 ... VO BIOS" with a bunch of numbers where the "..." is. At the next startx, only the NVidia screen is working, message on the Radeon screen stays the same.

The XFree86 log file has the error "Cannot read V_BASE" for the Radeon. Only a machine reboot can make the dual monitor setup work again.

I don't have a clue what this V_BASE refers to, but I hoped to get some help from this list. I searched groups.google, found two people with similar problems (with XFree86 4.2.0 in their case), but no solutions.

Anyone got an idea? I can post server logs or XF86Config file if you want, but I choose to save bandwidth for now.

Thanks in advance,
Arnout

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