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Old 01-08-10, 09:29 PM   #12
AireTamStrm
Registered User
 
Join Date: Nov 2006
Posts: 49
Default Re: BusID PCI on Server Boards

Update:

I was able to get the cards working on both chipsets. I had to use the hex values for the BusIDs, so I'm not sure if this fix is applicable to the author's problem. The 5520's on my motherboard do some magic to appear as a single chipset.

Code:
/sbin/lspci -t (abridged for readability)
-+-[0000:80]-+-00.0-[8b]--     
...
 |           +-07.0-[84]----00.0
...
 \-[0000:00]-+-00.0
...
             +-07.0-[08]----00.0
...
Code:
/sbin/lspci | grep VGA
08:00.0 VGA compatible controller: nVidia Corporation GT200 [GeForce GTX 260] (rev a1)
84:00.0 VGA compatible controller: nVidia Corporation GT200 [GeForce GTX 260] (rev a1)
The hex for '08' is '08', and for '84' it is '132'.
Code:
Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GTX 260"
    BusID          "PCI:8:0:0"
EndSection

Section "Device"
    Identifier     "Device1"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GTX 260"
    BusID          "PCI:132:0:0"
EndSection
@Chello: If you have a second nVIDIA card laying around, I would suggest putting one card on one chipset, and the other card on the secondary chipset. Start X11 on the first card, and then open nvidia-settings and verify whether or not it sees the secondary card:


Then confirm the BusID it sees. Attempt to configure this card in nvidia-settings if possible to see if that resolves your issue.


Additional Note:
Upon activating both cards in X11, you are able to see the Video BIOS version, while the nVIDIA driver is active on your card(s).
Code:
cat /proc/driver/nvidia/cards/*
Model:           GeForce GTX 260
IRQ:             30
Video BIOS:      62.00.1a.00.1a
Card Type:       PCI-E
DMA Size:        40 bits
DMA Mask:        0xffffffffff
Bus Location:    08.00.0
Model:           GeForce GTX 260
IRQ:             54
Video BIOS:      62.00.38.00.50
Card Type:       PCI-E
DMA Size:        40 bits
DMA Mask:        0xffffffffff
Bus Location:    84.00.0
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