Bugzilla – Bug 20878
Xorg server does not properly autodetect dual nVidia graphics cards
Last modified: 2009-03-26 10:46:28 UTC
Created attachment 24273 [details]
X.org log demonstrating the error
When starting the X server, it detects that there are "More than one possible primary device found"
(!!) More than one possible primary device found
(--) PCI: (0@3:0:0) nVidia Corporation G94 [GeForce 9600 GT] rev 161, Mem @ 0xf4000000/16777216, 0xc0000000/268435456, 0xf2000000/33554432, I/O @ 0x0000ac00/128, BIOS @ 0x????????/524288
(--) PCI: (0@5:0:0) nVidia Corporation G94 [GeForce 9600 GT] rev 161, Mem @ 0xf8000000/16777216, 0xd0000000/268435456, 0xf6000000/33554432, I/O @ 0x00008c00/128, BIOS @ 0x????????/524288
The X server will then attempt to invoke the VESA driver instead of the Nouveau driver (this is on the Fedora 11 Nouveau Test Day LiveCD)
Ultimately it will fail with:
Fatal server error:
AddScreen/ScreenInit failed for driver 0
However, if I manually add the following to an xorg.conf file, it loads correctly.
The correct behavior of the X server should be to automatically generate these entries for each card.
*** This bug has been marked as a duplicate of bug 18321 ***