Crossposting from the main forums since I didn’t realize this was the main place to get Linux support, my apologies:
I recently acquired a Titan X and have been using it under Linux, and I notice it’s very picky about monitor configurations – it was working OK when I had one display connected on DVI and one on HDMI, but trying to add a third display on DisplayPort results in X hanging and me needing to hard reset the machine. It doesn’t like booting this way or being hotplugged. I don’t think it’s a problem with the DP in particular, as I can boot it with just the DP and the DVI connected and that works fine too, until I try to add an HDMI display and I get a hang again.
Any idea what could be going on? I’ve made sure to disable the iGPU in the motherboard EFI just in case that was causing trouble – not really sure where to go from here. There doesn’t seem to be anything of use in Xorg logs; seems like it must be going down immediately and failing to log anything when the trouble starts. I don’t use an xorg.conf because I haven’t used one for years; xrandr seems to take care of things pretty much automatically in other cases…