Imac G3 upgraded to OS 10 with display problems

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Joined: Jan 10 2008
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I have an imac dv 400 mhz with a recently upgraded 300 mb ram and 20gb hdd. I installed tiger on it and now it's all an unreadable black and white. I can see the elements of the dock and icons, but that's it.

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Jon's picture
Jon
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Joined: Dec 20 2003
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Did you do the firmware updat

Did you do the firmware update from OS 9 before you updated? It's a longstanding issue with G3 iMacs that installing OS X on one before the update will kill the video.

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yes i did the update. what ca

yes i did the update. what can i do to fix this?

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Jon
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Did you accidentally invert t

Did you accidentally invert the colors then? http://www.wikihow.com/Invert-Colors-on-a-Mac

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I am not in this world to live up to other people's expectations, nor do I feel that the world must live up to mine. - Fritz Perls

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no i have done nothing to my

no i have done nothing to my system.

Dr. Webster's picture
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Have you run Software Update

Have you run Software Update yet? I remember a problem with 10.4.0 on my B&W with the low-end 4MB ATI video card that was in it. I'd get goofy video until I ran Software Update, which fixed it. IIRC it's a driver issue.

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Applefritter Admin

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how do you do software update

how do you do software update? i can't read the screen enough to do it.

themike's picture
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Joined: Jul 21 2004
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VGA

Can't you hook up a regular VGA monitor to the bottom port? Or is the video screwed up there, too...?

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ill try it i just need an ext

ill try it i just need an external vga

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Re: how do you do software update

guyatrandom wrote:

how do you do software update? i can't read the screen enough to do it.

If the video really is bad enough so that you can't make your way to Software Update, then you'll probably need to install Tiger to an external hard drive from another Mac, install all the updates, then try booting the iMac from it. If that works, then you can just clone the external drive to the internal one.

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eeun's picture
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I have a really fuzzy memory

I have a really fuzzy memory of having this problem when I installed Panther on a B&W G3 with the stock ATI card. The video was broken up in vertical bars, and while you could see desktop elements, it was not possible to read menu items.
I seem to recall there was a fix, and I may be confused with something else, but possibly booting successfully into single-user mode and applying updates from there...

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