DH knob blanks all displays

[z0civic]

I was prepping my plane and turned the decision knob all the way to the left (to try to get -20) and all the displays went black (PFD, NAV, radios, DH, everything). 

I tried turning the knob back but nothing would happen.

[mmerelles]

47 minutes ago, z0civic said:

I was prepping my plane and turned the decision knob all the way to the left (to try to get -20) and all the displays went black (PFD, NAV, radios, DH, everything). 

I tried turning the knob back but nothing would happen.

check my responde on your crash post, you are runing several plugins that mess with the aircraft datarefs. I presume that is your problem