PC won’t display login screen with 3 monitors attached…

[TheDieHardNinja]

I am having a fairly major issue with my PC that only started this last Monday… It would be easier for you to look at my profile for the specs than for me to write them all in here.

Basically, whenever I turn my computer on, it posts then shows the windows logo with the loading icon, then once that is done, it just stops. The display goes black and stays that way. It sounds to me as if the computer then tries to restart, going by the noise it makes. If I then unplug all but one monitor and wait a while, it recovers, displays the login screen and allows me to continue.

The strange thing is that if I only plug one monitor in, doesn’t matter which one, it starts perfectly fine when I first turn it on, shows me the login screen and allows me to use it normally. Now the super strange bit… Once logged in and fully ready to use, if I then plug another monitor in, it accepts it and adapts windows to suit. Then, I can plug the third one in, no trouble and all three work at the same time as if nothing was wrong! However, if I plug them in before it is finished booting or too quickly after each other, they all freeze, go black and the whole thing just halts. It’s odd because if I then unplug all but one again, it eventually recovers but it seems like the OS freezes too for the duration, because it doesn’t finish booting in the background, but continues once the display is back up. When it locks itself after not being used for a while, I’ve had it sometimes freeze and not display anything, but sometimes I am able to unlock it again just fine.

I have tried taking the GPU out and plugged two of the monitors straight into the motherboard, which it didn't seem to mind. I have tried turning it off at the wall for several seconds, rolling back the graphics driver, reverting to a restore point, doing a full scan with Malwarebytes, fixing registry errors with CCleaner and checking for bios and windows updates, none of which worked. I have restarted it so many times now and every time, it does the same thing.

I am currently back on the latest graphics driver (378.92). I have Windows 10 Pro 64-bit, version 1607, build 14393.969, Bios version 1504

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Help would be much appreciated!

[elkenrod]

Do you have an older driver? 

 

Also, are those monitors connected via HDMI?

[TheDieHardNinja]

2 minutes ago, elkenrod said:

Do you have an older driver? 

 

Also, are those monitors connected via HDMI?

I was only able to revert it to the previous driver (not sure what one it was, but it used to work).

The PG278Q is connected via DisplayPort because it is G-sync and only has one input.

One of the PB277Qs is connected via straight HDMI and the other is via a DVI to HDMI cable.

But like I said... It doesn't seem to matter which one is plugged in and it all worked fine for weeks!