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?
Well, I fixed it.. although I'm not entirely sure what did it. I added a dummy plug to that card, and moved the slot configuration around, then went down to 6 gpus which allowed it to boot again, then rebooted and plugged the other 6 in now all 12 have xserver terminals attached to them so the temp monitoring will work. No clue what caused, or fixed the problem. Such is the way of tech I guess... lol.