Screen turns on for 2 seconds and then turns black

I tried the monitor with different computers, with different cables. Always the same problem.

The screen turns on, on off switch still works, buttons still works, sound still works.
BUT when I plug it in or activate it, it turns on for 2-3 seconds with a pinkish tint and turns black. The on-off button is still “white” (indicating it’s on, orange means asleep).