Mac OS 9 Lives
Mac OS 9 Discussion => Mac OS 9, Hacks & Upgrades => Mac OS 9 on Unsupported Hardware => Topic started by: stewc on July 08, 2025, 01:59:07 AM
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Hello, first post for me... I have searched, but getting a little lost!
I've managed to get my Powerbook 'Aluminium' 15 inch 1Ghz booting into Mac OS9 using the open firmware hack detailed below. I have everything working, except there's no audio device (so no sound, internal or external). Is there anything I can do to get the sound working? The post I followed was years old, so I'm hoping there's a better way to do this... or possible updated audio drivers?
Any help very much appreciated:-)
dev /cpus/PowerPC,G4@0
80010201 encode-int " cpu-version" property
dev /pci@F2000000/mac-io/i2s/i2s-a
" screamer" encode-string " compatible" property
device-end
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Thanks to Greystash, I tried the mentioned nvram code without the screamer part and my audio works perfectly!
So for anyone with a Powerbook G4, 15 inch 1Ghz, you only need the following code:
dev /cpus/PowerPC,G4@0
80010201 encode-int " cpu-version" property
device-end
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Glad you got it working!! :)
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Thanks to Greystash, I tried the mentioned nvram code without the screamer part and my audio works perfectly!
So for anyone with a Powerbook G4, 15 inch 1Ghz, you only need the following code:
dev /cpus/PowerPC,G4@0
80010201 encode-int " cpu-version" property
device-end
would this work with a Apple PowerBook G4 1.5 12" (12-Inch 1.5 GHz - M9690LL/A* - PowerBook6,8 - A1104 - 2030) ?