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Enable external monitor support on a newer iBook
Authored by: AgBlue on Jul 29, '03 11:10:53AM

Works on my 700mhz iBook with 16mb Radeon card, and also running dev version of Panther (build 7A202).

I ran the script "Ibook Screen Enhancer" and it came up with three options. I hit Ja and then it asked for my password, and after that it came up with a screen with two options, where I hit Ja again. This rebooted my system, and after logging back in, I had monitor spanning.

I definitely prefer this way of doing it. Is this doing anything to the firmware at all? It says to in the hint that I need to press cmd-opt-o-f to reset, and to me, this means it changed the firmware. Well, so far, no ill effects.. Will post back later if anything comes up.

AgBlue



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Enable external monitor support on a newer iBook
Authored by: triplef on Jul 29, '03 12:03:52PM

AFAIK the script changes some parameters which are passed to the OpenFirmware when booting. These parameters are stored in the NV-RAM/PR-RAM (parameter RAM). Pressing cmd-opt-o-f when booting zaps the parameter RAM and thus disables dual screen again.



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Enable external monitor support on a newer iBook
Authored by: twalther on Jul 30, '03 05:43:49AM
Actually, Command-option-o-f boots the machine into Open Firmware and prompts the user for commands. Command-option-p-r zaps the parameter ram and is likely what this hint should have referenced.

Though if you do boot into open firmware, the following sequence of commands will work:

reset-nvram
set-defaults
reset-all

This will restart the machine "back to normal."

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Enable external monitor support on a newer iBook
Authored by: deleted_user18 on Jul 29, '03 01:20:38PM

it only puts a script in your open firmware which is started each time you boot your Mac (to make OS X think dual head is allowed).

By resetting your pram the script and everything else in pram is deleted.



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