Is it DVI to another type DVI plug/port? HDMI to DVI or vice versa? You mention the possible villian in this setup, and then give almost no information about it.
I have spent a few hours trying to fix this and really couldn't.
Hopefully I can get some help here!
I have 3 monitors all connected to my PC, Windows 10.
Monitor 1: HDMI connected to HDMI on the PC
Monitor 2: HDMI connected to a displayport-adapter on the PC
Monitor 3: HDMI connected to a DVI-D or DVI adapter on the PC
The problem is with monitor 3.
It is showing all 3 monitors in the settings: System, Display.
Clicking Advanced display settings takes me to a tab showing all 3 ASUS VN247 monitors connected to my computer using Intel(R) HD Graphics 630.
Almost same settings are set on all monitors, the only thing is that monitor 2 has 59 Hz Refresh rate instead of 60 which monitor 1 and 3 have.
So, when connecting this monitor 3 to any other output on my pc it works totally fine but whenever I connect something to this DVI-D or DVI adapter then it only says no signal and then shows a black screen.
I've tried unplugging everything many times with many different cables.
Everything worked totally fine today but it was only today that I dragged all connected cables to my pc out to fix some cable management.
Is the problem with my computer or the adapter or would this be something else maybe?