Zend certified PHP/Magento developer

Did I destroy my monitor by turning on/off a multiple plug/power strip

I tried to make an old windows 7 PC boot into repair mode.

The monitor and the PC were both connected to the same power strip.

I turned it on/off multiple times (hard reset) and now the monitor is dead.
I had no clue I can kill a device like this…

I am worried now, is the monitor dead or only the power supply of the monitor?

I think there are no “fixes” here, the monitor does not turn on or get any electricity, correct?

Here is an image of the power supply.

I tried already two different power strips and a wall plug.