Hey FZ,
I ran into an issue that I can't figure out how to fix. I've got 12 gpus on a TB250-BTC Pro, and all of them work fine, except the last one GPU12 (PCI:12:0:0) which doesn't seem to start an xserver instance on boot. Because it doesn't load xserver, the fan and power settings are unavailable for editing, so the card runs too hot and causes power throttling, and occasionally a reboot.
Any idea how to fix that? I checked the /etc/X11/xorg.conf file and it looks fine from what I can tell (all display device settings are there and look the same).
Thanks for your help.
The index (PCI:12:0:0) should be recognized properly.
What kind of GPUs are you using?
also, have you tried swapping out the riser on that GPU?
That's what I thought too... I put a headless plug on it and it recognized that there was a screen there, but when I restarted after saving that config it won't boot now. Teamviewer never comes online, and the screen never shows any indication of loading the o/s.
I'm going to do a clean install and see if I can fix it that way since I upgraded to CUDA 9.0, and that might have caused some problems.
the card that's giving the issue is an EVGA 1080 Ti SC Black Edition, but I have 3 of those and the other 2 are fine. It's recognizing the card, so I don't think the riser is the issue, but I guess anything is possible. I'll dig into it some more and see what I can figure out.
Thanks for the assist.