Monitor blanks interrmitenetly

[Elentai]

I've got a monitor that blanks it's screen approx. every half hour. We've swapped the video-card, so it's definitely the monitor. The power light does not go off, but the entire screen seems to lose video feed for second. We sent it in for repair, but the company insisted they couldn't duplicate the issue. Any ideas?

 

[edfair]

When it blanks then comes back does it snap or gradually do it? Any screen shrinkage or instability before or after. Ed Fair
efair@atlnet.com

Any advice I give is my best judgement based on my interpretation of the facts you supply.

Help increase my knowledge by providing some feedback, good or bad, on any advice I have given.

 

[Elentai]

It snaps back into place. There isn't any screen shrinkage or picture degradation. It recovers instantaneously, rather than the 2-3 seconds it takes if the power on the monitor is cycled.

 

[edfair]

And no flashing of the power on light to indicate loss of video signal? You are losing something inside the monitor. Signal, not high voltage. And losing it after signal detection.
Time for the repair center to put a heat gun on the board. Something has to be overheating or opening up under heat.
These are a royal PITA to diagnose. Ed Fair
efair@atlnet.com

Any advice I give is my best judgement based on my interpretation of the facts you supply.

Help increase my knowledge by providing some feedback, good or bad, on any advice I have given.

 

[Guest_imported]

My monitor does that all the time - especially when I am on the Internet.
I notice that the fonts and positions change slightly. I always assumed it
was the browser re-setting the page to my chosen Font(s) and size(s) which
I set in "preferences".

If the monitor is OK, I would assume the program currently running is
recasting the image to whatever it is set to.....

I run 1024 x 768 - 32 bit on my monitor. If any page you are looking at is
sent differently, the screen is re-cast.....(?) No?

 

[tcnews]

What he is referring to is a form of chip creep, but a little different. When electronic parts heat up, they expand slightly. If a part gets over-heated, it expands, fails, then cools and may re-gain useability. What will eventually happen is the part will expand and won't cool back into a useable fashion.

The other possibility is a signal loss in the cable. Something occurs that might seem totally irrelavent, but somehow interferes with the signal cable. Even a pinch in the cable that is kicked lightly can cause it.

The way to tell the difference is to time it. If you can predict down within a small period when it's going to happen, you have a heat problem. If it's random, look for some other commonality to the problem.

 

[grassmold]

mine is doing something similar its going into suspend mode whenever it feels like it and i can't seem to find the problem.