Monitor going black on my iMac?
After about 15 minutes after I turned the computer on the screen goes black. When I press Opt, Control, Eject and then the space bar it comes back on. It will continue this process many times (at least 9 or 10). When to screen get a little dim then it works fine until the next time which could be anytime.
I've read all the answers and I'm reading it could be anything from a converter cable, logic board, monitor and graphics card.
I've tried resetting the SMC and PRAM...didn't work.
If anyone has been able to correct this problem I would love to know how otherwise I might be looking at a new computer.
Thanks
Peter
Is this a good question?
3 Comments
Try lowering the brightness to a very low setting does it appear to take longer for the display to go black? Also have you tried an external monitor to see if there is any difference?
by Dan
I tried what you suggested about lowering the brightness and it seems to be working.
I haven't responded sooner because I wanted to test it before I said anything.
I lower the brightness about 25%. Then I tried raising the brightness a little and it didn't work. The screen started to go black.
So the 25% setting seems to be working. That was a great idea.
Why do you think it's working by lowering the brightness?
I hope it continues to work....I'll let you know if it doesn't.
Thanks for the suggestion.
by Peter
This was a diagnostic trick to isolate out the cause of the screen going out. Your problem is within the display it's self. The thermo sensor on the display panel is either going bad or the display it's self is over heating.
by Dan