U2415, Nvidia GTX 950, monitor wake up after the deep sleep?

I have two-desktop monitor. We're U2415, connected via mini - dp-> DP and the other is U2311H, connected via DVI on my Strix Nvidia Asus gtx950 video card.

When starting PC, DVI monitor is always first & fastest even if it's my secondary monitor, but this isn't a problem.

However, the real problem is when to wake up my PC after monitor deep sleep DP (30 minutes, several hours or more) won't wake up at all. It stays black. I have to manually, press the 'power' 2 times before monitor finally wake up and restoration of 2 desktop screen.

Before NVIDIA, I got an AMD card and this was never a problem (although I used to connect to U2415 via HDMI). I used the tool to remove all previous video drivers. I'm also using the latest Nvidia drivers, 10 x 64 windows.

I must point out that when you wake up to a short sleep mode, everything is fine. If I wake up monitors in less than 30 minutes, or so they work as should. I also activated 1.2 DP see if the problem will be solved.

I am ready to suggestions, what I should check then in Windows, monitor settings etc. ?

Thank you!

Looks like the Nvidia driver is slow to launch the DP communication CDM from deep sleep causing the monitor to think that nothing is connected. You could try to test a DP to DP cable and see if the problem persists. One solution would be to connect in this way =
NVIDIA GTX950 DVI out--> DVI to DVI cable--> DVI U2311H in
NVIDIA GTX950 out HDMI--> HDMI to HDMI cable--> U2415 HDMI in

Tags: Dell Peripherals

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