I've been having this problem for some time now and I thought I'd ask if there was a possible fix for it.
I have a Fujitsu Display SL27T-1 LED, it worked fine for a long time, but then it suddenly decided that it was too tired or whatnot, and decided not to wake up on its own.
1. I start up a game.
2. Screen switches to full screen mode.
3. Screen is black for a second and a half.
4. Screen goes to sleep.
5. Screen doesn't wake up like it should (pressing any key).
6. Have to restart monitor from monitors power button.
[7. Also screen turns black for a few seconds when trying to watch some videos (doesn't have to be a full screen video).]
The monitor has no warranty and it isn't worth having being sent out and repaired.
Win 10 Pro 64-bit
Intel Core i5-3570K
Nvidia Geforce GTX 660 Ti
8 GB RAM
Thanks in advance, Joel