[stanley]

Perhaps unrelated, but I have a similar problem with my hackintosh and a monitor connected via HDMI. The other monitor (same model) connected to the same GPU via DisplayPort has no such issues. Restarting the machine seems to be the only way to get the HDMI monitor to start working again.

[pram]

Putting the computer to sleep resets it for me. Only happens on anything that isn’t DP (HDMI and DVI->DP)

Annoying for sure.