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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Desktops > HELP! my imac display has gone coocoo

HELP! my imac display has gone coocoo
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Fresh-Faced Recruit
Join Date: Dec 2003
Location: vermont
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Dec 9, 2003, 09:48 AM
 
I'm hoping someone out there can help me work this out....
I figure it's best to include all the details I can here, so please excuse the lengthy description.

I'm using an iMac with OS 9.2
I've had it for 4 years and it has functioned perfectly with the acception of the clock which has been constantly resetting to 1904 lately.

I wanted to defragment my hard drive, so I used a DiskWarrior CD as my start up disk.

When it started up, the OS had changed to OSX. The disk is a copy and I think it has a couple versions of DiskWarrior on it, so for whatever reason, I guess it decided to use the OSX version.

I defrag'ed and restarted my imac without any problems.

I rebooted normally and it went back to OS9.2

Then l turned on virtual memory and restarted again.
this is when it went cooky.
When it restarted, there was a bright, green boarder around the screen and the resolution had changed. Everything else seems to be working fine, even the clock and date.

All the colors were washed out and a pink "shadow" stretched out to the right of any image on the screen.

I turned off virtual memory and restarted. No improvement.

Then I tried to shutdown and it froze, so I pressed the power button until it shut off. Then I unplugged it and left it overnite.

When I turned it on again, the screen was REALLY off. long white lines extended to the right of any image and the colors were all totally off (white and pink and washed out). Also there was noticable noise and weird, staticky, processing sounds.

I ran DiskWarrior (as the startup disk which loaded as OSX again) and restarted.
The screen is now back to it's previous, LESS messed up state.
I tried re-calibrating the screen settings with no luck. The pink shadow is most "active" when I "wake up" the screen. It stretches far to the right and slowly shrinks back to the left. I ran NortonUtilities (from the hard drive) and it found some clock errors but not much else.


Well, thankyou for reading this far. Any ideas??
Thanks!!

pete@casperelectronics.com
     
Professional Poster
Join Date: Apr 2001
Location: Capital city of the Empire State.
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Dec 10, 2003, 09:55 AM
 
The date problem indicates that your clock battery is dying. Here is some info on taking care of that issue.
However, that shouldn't freak out your monitor, AFAIK. Have you tried zapping the PRAM and/or resetting Open Firmware?
/mal
"I sentence you to be hanged by the neck until you cheer up."
MacBook Pro 15"/2.4 GHz Intel Core 2 Duo/4 GB DDR2 SDRAM/200 GB Hitachi HD/8x SuperDrive/Mac OS X 10.6.1
     
Mac Enthusiast
Join Date: Dec 2002
Location: netherlands
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Dec 11, 2003, 06:38 AM
 
to me this sounds like my old TV dying on me... if possible to attaching a second monitor to see if that worlk okay!
MacBook Pro 13"/2.66 (09/2010), Mac Mini c2d/1.83 (01/2008)
     
   
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