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Screen brightness drop

Message #1 - Posted 2005/03/26 - Devi Jankowicz

Went into panic mode this afternoon.
The screen of my iMacG5 suddenly went very dim. So dim that I could barely make out the scrren to turn up the brightness control to maximum in System Preferences. Doing so mad _very_ little difference. So I switched the machine off )for practically the first time since I bought it 2 months ago) and I switched it back on, all was well.

Can anyone comment on this please? Is it a known problem?

Kind regards,
Devi

Message #2 - Posted 2005/03/26 - matt neuburg

Devi Jankowicz wrote:

\> The screen of my iMacG5 suddenly went very dim. So dim that I could

barely make out the scrren to turn up the brightness control to maximum in System Preferences. Doing so mad _very_ little difference. So I switched the machine off )for practically the first time since I bought it 2 months ago) and I switched it back on, all was well.

Can anyone comment on this please? Is it a known problem?

Devi, would you say that the screen might have been dimmer in one half than the other? Anyhow, yes, this is a known problem, you'll find lots of discussion of it on the iMac G5 discussion board at Apple, I've seen it myself.

<http://discussions.info.apple.com/webx?128@41.t3sCabY1Txj.1@.689ccbb3>

However, I have not seen it (knock on melamine) since the day I opened my iMac G5 and pressed the SMU button. m.

matt neuburg, phd = matt@tidbits.com, http://www.tidbits.com/matt/ AppleScript: The Definitive Guide
http://www.amazon.com/exec/obidos/ASIN/0596005571/somethingsbymatt Read TidBITS! It's free and smart. http://www.tidbits.com

Message #3 - Posted 2005/03/27 - Devi Jankowicz

Previously, matt neuburg wrote:

Devi Jankowicz wrote:

\> The screen of my iMacG5 suddenly went very dim. So dim that I could

barely make out the scrren to turn up the brightness control to maximum in System Preferences. Doing so mad _very_ little difference. So I switched the machine off )for practically the first time since I bought it 2 months ago) and I switched it back on, all was well.

Can anyone comment on this please? Is it a known problem?

Devi, would you say that the screen might have been dimmer in one half than the other?

<snip>

Well, ish. The upper half was a bit dimmer than the lower, but the difference was gradual rather than demarcated.
I wonder if it's related to something that happens when I bring it back from sleep: the screen 'scrolls' bright, then blue, then bright again? Anyway, I'll look in on the G5 support group as you suggest.

Kind regards,
Devi

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