My monitor will not sleep when connected via DP. The screen goes black but wakes back up in 5 seconds and does this over and over. If I power the monitor off, it will say "no signal detected" when attempting to wake it up. The nMP wakes without issue so it seems to be some sort of communication issue. I was hoping someone here could help. The monitor is an LG 34UM94. The DP is the only input that does this and of course it would be the one I want to use :roll eyes: Anyway, if anyone has any idea what this is, I would really appreciate the help.