I’m having problems getting a S870 up and running. I’m running 64 bit ubuntu 7.04 with the 171.06.01 driver. The problem is very similar to this post
and might be similar to this post
Basically, when the S870 is connected and the nvidia driver is set in xorg.conf, X takes something like 10 minutes to start (went to check these forums, came back and it was working). I was running the exact software environment with the C870 with no issues. Once X finally starts the S870 works as expected, all 4 GPU’s are visible.
If I disconnect the cables or set the xorg.conf to use the default X driver ‘nv’, X starts normally. There are no obvious error messages in the xorg log, but there are several in /var/log/messages . Unfortunately I can’t readily upload the results from the nvidia bug report, but I can print it and scan a pdf if needed.
A few other relevant pieces of info is that I’m using a supermicro X7DWA-N motherboard based on the Intel 5400 chipset. Since the S870 host interface cards are taking up both PCIe slots, I’m using a PCI based Geforce 6200 (I think) for video. I could easily be way off, but for some reason I think the driver is trying to use the S870 GPU’s for video and then failing, and finally defaulting back to the correct PCI video card, causing the 10 minute plus delay.
Another clue is that once I’m finally in X and try to run nvidia-smi, it prints some GPU found messages to the terminal then hangs the system. Even ssh doesn’t respond. I haven’t waited around to see if it clears. As a work around, I’ve thought about using the nv driver in xorg, then executing the script found here
to make the S870 available for CUDA. Any other ideas for a fix/workaround?