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Fix a misbehaving backlight on PowerBook G3 machines
Authored by: webster phreaky on Jul 12, '03 01:56:19AM

First, the magnetic problem with certain IBM/Hitachi and Toshiba 2.5-in HDD is well documented, see the story at Upgrade a PowerBook G3, Part 1 and 2 ( http://homepage.mac.com/techedgeezine/cart_mac_pb1.html ). The fix is there too.

I also have a backlight problem with OS X and a Wallstreet, but very different. Whenever I boot up in OS X 10.1..5, the backlight goes to full bright (this never happens when booting in OS 9.2.2). Never happened before installing OS X (separate partition, as you should).

I've tried Zapping the PRAM, nothing. This makes no sense. Anyone with an idea??



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Backlight on PB G3 occasionally "supernovas"
Authored by: csmith on Jul 12, '03 04:20:40PM

I, too, occasionally boot my WallStreet G3 to find the display is at full strength. This is with OS 9.0.4. I don't have OS X installed on that machine.

I'm trying to remember what precedes the bright screen. It happens sometimes after a post-crash reboot (but only in that context).

I have not had the problem with the blacked-out backlight, but OS X has not been on this machine, except one time (when I tried to install OS X 10.2 on an expansion bay drive, and got only a circle with a slash through it when I booted from that drive - I'd never seen that on my TiBook 667, which I've had since new in April 2002).



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