http://bugs.freedesktop.org/show_bug.cgi?id=20878
Summary: Xorg server does not properly autodetect dual nVidia
graphics cards
Product: xorg
Version: 7.4
Platform: x86-64 (AMD64)
OS/Version: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: Server/general
AssignedTo: [email protected]
ReportedBy: [email protected]
QAContact: [email protected]
Created an attachment (id=24273)
--> (http://bugs.freedesktop.org/attachment.cgi?id=24273)
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.
Section "Device"
Identifier "Videocard0"
BusID "PCI:3:0:0"
Driver "nouveau"
EndSection
Section "Device"
Identifier "Videocard1"
BusID "PCI:5:0:0"
Driver "nouveau"
EndSection
The correct behavior of the X server should be to automatically generate these
entries for each card.
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