So today I went through hell and back configuring my quad video for ubuntu. Currently I’m running dual Nvidia Quadro FX 380 dual-head video cards on Ubuntu 10.10 32bit.
Steps I tried before finding the answer:
1) Remove and Reinstall Driver
2) Remove and Reinstall Second GPU
3) Downloaded Nvidia Experimental Drivers
4) Deleted and Recreated xorg.conf over and over
** Then I checked my error log, and noticed this message:
Failed to Load PCI 2:0:0 Nvidia GPU
I’ve come to find out it’s a limitation with the 32 bit version of linux, not allocating enough resources to start the second GPU.
Opened up /etc/default/grub and added
GRUB_CMDLINE_LINUX=”vmalloc=192M”