Graphics card only works with one monitor connected

[UckoDucko]

I've had my custom-built computer for about a year and haven't had any problems.

Randomly, for some reason, the computer only boots with one display connected. If I have both my monitors connected to my graphics card, neither of the screens will work.

The computer still boots, but I cannot get any picture to show, even if I disconnect the second monitor after the boot.

I can connect the second monitor after booting and both work fine. Not a clue what the problem is? Could it be something to do with BIOS?

I'm running a 1050 ti with two hdmi monitors connected.

 

[harvey.l12]

Are you able to try a different cable with one of the monitors?

 

[djbully]

Are you using win10? And do you have onboard graphics at all?