Why does iMac screen not return after sleep?

in Genius Bar edited January 2014
I'll follow up on this at an Apple store. Just wondering if someone knows something specific about this.

My mom has a blueberry iMac (400MHz I believe). It works fine but after sleeping it consistently fails to wake up. You press a key and the power light stops blinking. However, the screen remains black and it appears the computer is not responding.

I seem to remember something about this. Is it a hardware problem? Firmware problem?

I've updated this to OS X 10.3.7 without a change in this behavior.



  • Reply 1 of 2
    I have a G4 imac and i have experienced the same problem on 10.3.6. I havent tried it on 10.3.7 but i will again. It seems that from 10.3.0 to 10.3.7 it has gone back and forth from working to not working. I cant remember version numbers exactly but it was like on 10.3.3 it didnt work 10.3.4 fixed it and then 10.3.6 screwed it up again.

    I have experienced the exact same problem where the light goes off but the computer doesnt seem to change from black.

    I hope someone else can answer the problem. I'm glad its not just me.
  • Reply 2 of 2
    neutrino23neutrino23 Posts: 1,560member
    I spoke to a genius at the local Apple store. He said he didn't know of any specific problem. He suggested it might be a hardware problem and that we should bring it in to a local store for evaluation.

    My wife's parents have the same version iMac and it works fine. We also have a 600MHz G3 iMac for the kids and that sleeps and wakes fine.

    You say you have a G4 iMac. Is that the one with the LCD on the flexible arm? Have you repaired permissions? Checked the hard drive? My wife's G4 iMac was having problems mounting a FW HD. I ran Macjanitor then repaired permissions then updated to 10.3.7 and it now works fine. I think she had never tried to repair permissions. A ton of them needed repairing.
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