Monitor keeps turning on and off

[slendergod.slender]

I have a problem with my monitor.It keeps turning on and off,showing desktop for not even a second. And when I unplug the cable,it doesn't show the "No signal cable" message and keeps turning on and off. Any help?

 

[cwli1_]

https://www.youtube.com/watch?v=VsJGQDfXKUI

Search ebay for “LED monitor lights”.