Windows 10: Trouble with Monitors turning off after a while and not able to wake them, computer is on

Hi, My monitors go black after a while and to get them to come on I have to force a restart of my computer. The computer is showing still on but the monitors indicator lights are yellow,. No matter what I do, it happens. Any ideas,

:)

 

Computer Randomly Turns on From Sleep

I only saw this thread now, otherwise I would have suggested this sooner.
I had that same problem you are having, my computer was waking-up from S3 and the culprit was my X7 mouse.
powercfg -lastwake also listed the HID keyboard device which was an extension of the mouse.
Besides going in device manager and setting everything to not being able to wake-up the computer from S3, I also did this to the power profiles:



Worked for me.

 

Monitor problem - not waking up

Hey guys, I have an issue with my BenQ GW2765HT where if I turn on my computer with the monitor in standby (orange light) status the monitor will not wake up. I must then unplug the monitor from the AC power and then replug it and then also restart my computer before the monitor will wake up. This issue is intermittent however and also strangely if I do a restart from Windows the monitor goes to standby for a second or two before waking back up when the POST screen appears which is normal behaviour. So it seems only if the screen is on standby for some time does it fail to wake up again.

Also the monitor will not wake up if it is powered off (although still plugged in) under the same circumstances as if it were just on standby status and also requires the AC power to be disconnected and the computer to be restarted before it wakes up.

Any suggestions? Or should I just take it back to my shop?

info; I bought it in the middle of August last year.
edit; I am using a displayport cable. I've tried a different displayport cable and also with a different computer and I have the same problem. I also tried DVI and it happened more often.

 

Trouble with 2 monitors

Hi Tim,

Thank you for posting your query in Microsoft Community.

I suggest you to change the settings to Extended Monitor and check if it helps.

Please follow below steps:

• Right Click any ware of the Desktop, and launch Personalization.
• Go to dual monitor settings under personalization, and change it Extended Monitor.

Please get back to us for future support, we’ll be glad to assist you further.



Thank you.