Re: Mandriva 2007 install will only run in 640x480 mode. Have beat my head against this for 15+ hours...

Andy D wrote:
Thank you! The NoDCC option fixed my 640x480 problem. I can now run at 1280x1024, as desired.
This lead me to believe that my Radeon X800 Pro shows up with two different addresses: 1:0:0 for what seems to be one head, and 1:0:1 for the other head?
Nevertheless, I've gone with your suggestion and made both devices BusID "PCI:1:0:0", differentiating them with screen numbers. Is this the right way to do it?

This is how I have on my my xorg, but I'm using the nvidia driver.


Here are illustrating parts of my xorg.conf file. I'm also attaching the whole thing.

#The DVI head:
Section "Device"
BusID "PCI:1:0:0"
...
Screen 0
Identifier "Radeon X800 Primary Head"
...
Option "NoDDC"
...
EndSection

For matrox cards you have the option
Option "MonitorLayout" "CRT"

For nvidia driver you have the option
Option "UseDisplayDevice" "CRT"

There should be a such option for your ATi driver too, should be in the documentation for the driver.

In my case I would use

Option "UseDisplayDevice" "CRT-0" #part of primary device-section


Option "UseDisplayDevice" "CRT-1" #part of secondary device-section


Thats how they distinguish between the different heads, otherwise the primary is always used.


--

//Aho
.

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