Question Black screen on main monitor ?

[billygoat99]

Hello,

Yesterday both my monitors were working fine, as i turned my PC on today, my main monitor just shows a black screen? I have a samsung monitor, and when i hit the button on the side which i think is calibrate, it says Analog on the top left, then switches to Digital, then my monitor works for 2 seconds, showing my desktop, then going black again?

 

[rgd1101]

full system spec? include brand and model of the psu
test with a different port on the gpu for the main monitor?