So I feel like this issue has been occurring more and more frequently recently to the point that now, actually being able to boot my PC and have my monitors detect the signal is a rare occurrence and extremely frustrating. I'll try and breakdown the issue below:
Monitors: Dell P2421DC + P2421D
PC:
- GTX 1070
- Motherboard GA-Z77-D3H
- Intel i5 3570k
- Windows 10
Connecting both monitors via DP -> DP.
Old I know but haven't got round to tearing it down for a much needed upgrade.
Issue:
Power on PC (PC clearly booting with lights and peripherals lighting up) -> Turn on monitors -> Both monitors display `No DP signal from your device` and go into standby.
What occurs next is sometimes a very short and sometimes very long game of turning off the PC -> turning off the monitors -> unplugging and reconnecting the DP cables. Try again and again and again. Sometimes this works after once cycle, sometimes I have to unplug the monitors completely and bingo, sometimes it never seems to work and I step away. Each time the steps to resolve the issues seems completely random. Which is what makes this so frustrating.
Initially thinking this was a graphics driver issue I:
- updated to the latest Nvidia drivers to no avail.
- connected via HDMI with the motherboards HDMI socket also with no luck.
I've connecting multiple mac notebooks and a HP mini PC to the same ports and with the same cables resulting in perfect functioning every time, all the time. So it's definitely a PC issue. Unsure how to move forward and any advice is greatly appreciated.