I have two monitors hooked to a GTX-960. One is connected via DVI and the other via DP. This is a System76 Leopard Extreme desktop. I'm using the proprietary Nvidia "tested" drivers. Ubuntu 14.04 LTS.
Quite often (~50% of the time) when I arrive in the morning one or the other monitor is black (in sleep mode, has no signal). Sometimes re-plugging the monitor works, but other times only a reboot fixes the problem. Sometimes both monitors are black, re-plugging doesn't help and I need to power-button reboot the system.
I have my system set to never sleep. I have my screen set to "turn off when inactive: never".
I've tried the Xorg drivers and DP doesn't work at all in that case. I've tried the "untested" drivers with the same result.
Any ideas? Thanks.