Question 2nd monitor suddenly not detected and showing 'no signal detected'

[Marmite1]

I have 2 BenQ monitors and recently the 2nd one which is a GL2250 just doesnt want to work. Windows wont detect and it says 'HDMI no signal detected' and my other monitor works fine.

I've tried unplugging the power cable, swapping the power cables, tried a different port on the GPU, swapped the cables, restarted my PC and still nothing. On occasion it works again but the resolution for it in Windows wont go above 768p.

Is it dead? Anything I can try?

 

[rgd1101]

does it work with just 1 monitor?

 

[Marmite1]

does it work with just 1 monitor?

Yes currently only using the working one atm.

 

[rgd1101]

and if you use the same connection/power cable of the 2nd monitor, does it work?

 

[Marmite1]

and if you use the same connection/power cable of the 2nd monitor, does it work?

Its suddenly sprung back to life randomly so I guess this is solved.