Brightness settings differ between 9 and X

Jan 24, '02 09:16:12AM

Contributed by: mithras

After a bewildering and frustrating troubleshooting session, I realized the following:

Mac OS X's screen brightness will be set to "off" at settings that are merely "dim" in Mac OS 9.

I was booted into OS 9 on my iBook, and turned the screen brightness all the way down, just one notch above "off". Later I booted into OS X, and was disturbed to find that the iBook was shutting down suddenly, partway into the boot sequence! The hard drive kept spinning, but the screen went black and the computer wouldn't respond.

I tried Disk First Aid, booting into single-user mode, reinstalling 10.1, and was about to buy a disk-repair utility, when I remembered my brightness setting. I went back to 9, turned up the brightness, and all was well.

Humiliating, but I thought I'd put this out there in case anyone else runs into a similar problem one day.

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