Switching default linux videocard

cav · 07-31-2003, 08:44 PM

I have two monitors on two seperate voodoo3's, one agp one pci, and linux always wants to use the pci board as the main card. Is there a way to switch this? Maybe it doesnt matter, but my first instinct is that the agp should be the main video board.

On that note, is the agp slot "faster" than the pci in any way? Why is the agp a dedicated video slot? I should know this by now.

chrismiceli · 07-31-2003, 08:59 PM

the agp slot is not faster than the pci, it was designed so that the video card would not suck the performance of the pci bus. To change the default video card, I am clueless.

tyler0123 · 08-02-2003, 04:10 AM

http://www.linuxdocs.org/HOWTOs/Xinerama-HOWTO-5.html

don't worry about the xinerama program itself. xinerama support is built in now.

this link should help though.

cav · 08-03-2003, 09:52 PM

Thanks, I guess I wont try to swap the primary video card. tyler, I actually have read that link before, it has some great info, but I am still having some bad performance problems running dual head. Perhaps the tdfx driver for voodoo cards isnt that great for dual?

tyler0123 · 08-04-2003, 12:55 AM

did you get the BusID and enter those for the vid cards in the xf86config file?

example

BusID "PCI:1:0:0"

this may help. maybe i am wrong. just a thought. it seemed to help my dual monitor problems. anyway. good luck.

cav · 08-07-2003, 12:50 PM

Thanks, and yes I do have BusID, 1:0:0 for agp and 0:9:0 for pci I think. Oh well, maybe I can try to find some better drivers.