Question Monitor won't wake up from sleep mode.

[Darli328]

Haven't posted in a long time and the title pretty much sums it up. When trying to wake up my computer with my mouse or keyboard the computer turns on and the monitor turns on with a blank/black screen but after a few seconds it says "no display port detected" or something to that effect. Which at this point I have to restart my PC and then the monitor runs normally. Unfortunately this issue seems to have started up a few weeks ago. I've had this monitor for around 3 to 4 years, and the rest of the system for about 1 year. I've tried searching google and other forums with no luck. I'll post what I've already tried to fix it with no luck and my system specs below. Any thoughts, tips, advice would be helpful. Thanks

In the ASUS Monitor settings I've unchecked DisplayPort Deep sleep (turned it off)
Turned off Windows Fast Startup
Have my Windows 10 power settings set to High performance
Updated all drivers and windows updates

I'm using the displayport cable that came with the monitor but I've ordered a new cable and will try that. I currently don't have another monitor I could test to see if it's a faulty monitor.

Monitor ASUS PG279Q (not overclocked, set at 144hz 1440p, OD set to normal, connected via displayport)
Intel I7 8700k
EVGA Z390 FTW
EVGA RTX 2070
Corsair Vengeance LPX DDR4 3200mghz 32GB (4 8BG sticks installed)
Samsung 970 Evo 500GB (OS installed here)
Samsung 970 Evo 1TB
Windows 10 Pro

 

[Furious_Styles]

You've tried most of the easy stuff. Only other thing I can think of is to try a different port on your GPU. I'd try re-seating the cable on both the GPU and monitor if you haven't already.

Beyond that a new cable is a cheap test, but if you can use it normally otherwise chances are it's fine. And if you have a spare HDMI cable it might be worth trying that too even though DP is required for that to run 144hz iirc.

 

[Darli328]

Thanks! I've tried different GPU ports after it has failed to wake up with no luck. I could try different GPU ports before activating sleep mode and see how that works. Once I get the new displayport cable in the mail I'll try that but considering everything else works I'm not to hopeful that'll fix it.