I'm having an issue with my Dell P2417H... I got two of them for a multi-display setup one of them works. But the other one for the last year has been giving me problems. Every now and then I will get an input randomly it will connect like once every few months it decides it's going to be connected for at most 30 minutes. As of lately it won't connect at all. If I plug any HDMI cable in it detects that it's plugged in but no input gets displayed. If I unplug the HDMI it stops auto detecting a plug in.