3 monitor setup - monitor has no signal

AdamEcc · 20 Mar 2017 at 13:39

I've been running three monitors off a Fury X for quite a while, largely without issue.

Until this morning, I was running three Asus VN247s, but I've just upgraded the central monitor to a Samsung U224E850 to get silly high res and Freesync.

I've plugged everything in, but only the new monitor and one of the old ones are putting out an image; the left hand Asus is showing up as no signal.

I used to get this occasionally with the old setup and I could resolve it by playing with the cables, but that isn't working this time.

All three monitors work during boot - they all show the BIOS setup screen and the "loading Windows" logo, but the one monitor stops displaying once Windows gets to the login screen. The Display Properties control panel shows a third monitor connected but disabled.

As of right now, the connections are

Samsung - Mini DP -> GPU DP
2 * Asus - HDMI -> Startech.Com DP splitter -> GPU DP
Cintiq (usually switched off) -> GPU DP

When I switched the Cintiq on, it was detected and worked fine; any ideas on why my standard monitor doesn't want to work?

FunkSoulBrother · 20 Mar 2017 at 14:14

Recently had the same problem, here's what I did:

1) Turn on your "broken" monitor and select the input method you are using.

2) Whilst you are hovering over the selected input method, go into the "display settings" in Windows and click on the "disconnected" monitor and select "make this my main display" and it should work.

Remember that the second step has to be done at the same time as the first step.

Hover over input method - open display settings on windows - make the "disconnected" monitor your main display.

Let me know if it works.

AdamEcc · 20 Mar 2017 at 14:54

I'm not entirely sure whether it was sacrificing the chicken or pledging my soul to Loki that did it, but I got the monitor going before I saw your answer. I really have no idea which change did it

I've made note of your answer for the next time, though. Thank you.

FunkSoulBrother · 20 Mar 2017 at 14:56

AdamEcc said:
I'm not entirely sure whether it was sacrificing the chicken or pledging my soul to Loki that did it, but I got the monitor going before I saw your answer. I really have no idea which change did it

I've made note of your answer for the next time, though. Thank you.

That's good!

Yeah, same thing happened to me the other night after I reset CMOS, so strange.

Always annoying when you don't know the cause but then it starts working, haha!