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Monitor blinks logo and goes blank

1K views 6 replies 3 participants last post by  eskawl 
#1 ·
I have a dell st2420l monitor. I use it as a secondary display for my monitor. When i turn on the monitor it shows the dell logo for a split second and goes blank. It then flashes the "no hdmi detected screen" and goes blank. If I connect my laptop it flashes the screen and goes blank. I tried to change the resolution through windows settings and it again flashes the screen and goes blank. The monitor is about 3 years old. Unplugging and replugging also cause the same.
 
#2 ·
Try connecting the monitor to another source using the same cable/port.

That will confirm a monitor or PC issue. At this point, there is no way to know if the monitor is faulty or if there is simply no signal output from the computer.
 
#5 ·
I just replaced the power cable with a spare one. The issue continues. So the power cable was not faulty.

Late night, the monitor turned on when I fiddled with the resolution settings again. It returned to its previous state when I launched a full screen application. Shows the screen for a split second and goes blank.
 
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