Dual NVidia graphics cards in Ubuntu / xorg.conf mania
- by John Zwinck
I have two NVidia graphics cards:
Quadro NVS 295 (PCI Express, dual DisplayPort outputs)
GeForce FX 5200 (PCI, DVI and VGA outputs)
I have three identical monitors, two on DisplayPort and one on DVI.
I'm on Ubuntu Hardy (and cannot currently dist-upgrade for separate reasons). I use the "nvidia" driver.
What's new is the GeForce card and the third monitor. I currently have the dual DisplayPort monitors working fine. Here are the display-related parts of my xorg.conf:
Section "ServerLayout"
Identifier "Default Layout"
Screen "PCI-Express Screen" 0 0
# adding this makes X fail to start: Screen "PCI Screen" 0
Inputdevice "Generic Keyboard"
Inputdevice "Configured Mouse"
EndSection
Section "Module"
Load "glx" # not sure why/if this is needed
EndSection
Section "Monitor"
Identifier "DELL 2408WFP"
Option "DPMS"
EndSection
Section "Device"
Identifier "NVIDIA Quadro NVS 295"
Driver "nvidia"
Option "RenderAccel" "true"
Screen 0
BusID "PCI:2:0:0"
EndSection
Section "Device"
Identifier "NVIDIA GeForce FX 5200"
Driver "nvidia"
Option "RenderAccel" "true"
Screen 1
BusID "PCI:6:4:0"
EndSection
Section "Screen"
Identifier "PCI-Express Screen"
Device "NVIDIA Quadro NVS 295"
Monitor "DELL 2408WFP"
Defaultdepth 24
Option "TwinView" "True"
Option "UseEdidFreqs" "True"
Option "MetaModes" "1920x1200 +0+1200, 1920x1200 +0+0"
EndSection
Section "Screen"
Identifier "PCI Screen"
Device "NVIDIA GeForce FX 5200"
Monitor "DELL 2408WFP"
Defaultdepth 24
Option "TwinView" "True"
Option "UseEdidFreqs" "True"
Option "MetaModes" "1920x1200 +0+0"
EndSection
I use nvidia-settings to configure my monitors, and it does not show the second GPU. lspci, though, shows:
02:00.0 VGA compatible controller: nVidia Corporation Unknown device 06fd
06:04.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200]
Which is where I got the BusID settings for the two devices (when I just had one device, I didn't have any BusID listed...and adding the BusID hasn't broken anything).
What am I missing? How can I make nvidia-settings show my second GPU so I can then configure its monitor?
