All digital inputs at the monitor at once defective goes that?

Since yesterday I have the problem that my main screen (BenQ RL 2455) with any digital input (2xHdmi, 1xDVI) no signal etc displays. I tested a variety of cables (DVI, HDMI, HDMI to Diplayport, DVI to HDMI) and 3 devices (PC GTX 1070, notebook, console), all to no avail. My other two screens work perfectly with the cables and devices!

Now to my question, it is really possible that one screen at a time all digital inputs no longer work. The VGA connection works!

Maybe you have an idea what you can test. Guarantee course expired 2 months ago.

Yes, obviously this is possible and that does not even include much, because somewhere on the board they all have a common point of contact. I assume very strongly that you also set the monitor to use these inputs.

Yes I had when I tested the cables had always told the screen which connector is now used.

But thanks for your answer, could have been anything else.