[Lebensmüde]

(This has happened to me twice so far and I'm at a total loss for an explanation.)

I ran Cocktail to run cron maintenance scripts and repair permissions in Panther on my 600 MHz Dual USB iBook and after restarting my backlight would not come on. After still not coming on after a second restart, I immediately began thinking: Oh no, video card or cable problem and that I would have to bring my iBook in for a repair after reading about backlight problems on this forum.

Following a hunch, however, I rebooted into OS 9 (which my Dual USB iBook fortunately allows me to do) and, voilá, the backlight came back on and stayed that way, also after rebooting into OS X.

Does anyone have a clue what could cause this unusual behavior?

[ccsccs7]

Originally posted by Lebensmüde:
(This has happened to me twice so far and I'm at a total loss for an explanation.)

I ran Cocktail to run cron maintenance scripts and repair permissions in Panther on my 600 MHz Dual USB iBook and after restarting my backlight would not come on. After still not coming on after a second restart, I immediately began thinking: Oh no, video card or cable problem and that I would have to bring my iBook in for a repair after reading about backlight problems on this forum.

Following a hunch, however, I rebooted into OS 9 (which my Dual USB iBook fortunately allows me to do) and, voilá, the backlight came back on and stayed that way, also after rebooting into OS X.

Does anyone have a clue what could cause this unusual behavior?

My experiences:

Early 10.3, colors washed out (not your problem). When password came up and screen was dim, you could not adjust the brightness.

10.2 I don't recall if 10.2 ever forgot that I had a backlight. It seems like something like you described happened—but this was after a kernel panic, I belive, although a restart might have fixed it.

Mac OS 9 is pretty good to us, you know? How often does it forget you have something attached or how to make something work? (Or fix problems caused by Mac OS X? )