Video signal shuts off, but monitor backlight says lit, is this a power saver in Win 10?

[SamA29]

Upgraded my system to Windows 10 from 8.1. ASRock Z170 Gaming K4, i7-6700k, 16Gb DDR4, GTX980Ti, 958.87 Win 10 drivers (was using the same version win 8.1 driver) 3 Asus 24" monitors connected with display port to HDMI cables.

After a few minutes of not touching the keyboard or mouse, the monitors appear to have the signal stop being sent but I can see the LED backlights are still on so the screens have a glow, they are not black. As I have a TV tuner card in my system and usually have one monitor showing TV having all 3 screens lose the signal from the video card is a pain. Power setting is set to turn screens off after an hour of inactivity but this issue seems to be the video signal getting shut down.

So is this a Windows 10 or nVidia driver issue? Did not do this with 8.1 with the same driver version.

Sam

 

[Trouble]

My monitors do exactly the same thing, but......
That is how I have them configured.
I use a blank screen saver set to 15 minutes, which gives be the symptoms you describe and then I use Turn Off Monitors, set for 25 minutes and then they go dark, no backlight.
Have you checked your screen saver settings?

 

[SamA29]

Yup that was it. When Win 10 installs it must set that as a default, never used the screen saver in 8.1. Thanks.

Sam

 

[Trouble]

When Win 10 installs it must set that as a default

That may very well be correct. I never noticed since it is my screen saver of choice. I seem to remember having to adjust the time though.
Anyway, glad you got it sorted.
Thanks for posting back and updating your thread with that information.