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Comment by Karunamon | Hacker News Reader

Only thing holding me back from upgrading is the complete lack of wanting to hex edit my ATI kext again.. heck it might not even be compatbile with ML.

Hackintoshes :/

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What kind of card do you have? Hackintoshing has gotten a lot friendlier in the last few years. I upgraded a hackintosh I built for a friend from 10.6 to 10.8 and was pleasantly surprised by how everything "just worked" with minimal kext juggling.

Gigabyte Radeon 6850. What'll happen is, you have to choose a specific framebuffer configuration to even boot. 2 of these work with my card, only one of which allows hardware acceleration to work right and allows both DVI ports to work.

The one that allows hardware accel on a single screen is actually the right one for the card. The hex editing is to change the display outputs to enable the second head.

I'm using an XFX 6870, two-headed, on my Hackintosh, and didn't have to edit anything. I'm pretty sure hardware acceleration is working, too.

Those are sufficiently different that you likely don't have the problem. The 6870 uses a different framebuffer personality than the 6850, and likely the fact that it's a different manufacturer might ameliorate the problem altogether.

Which hackintosh tools did you use? I used Unibeast/Multibeast.

Multibeast from CD. I don't think this is an install problem though, there's an absurdly large thread about this on insanelymac: http://www.insanelymac.com/forum/index.php?showtopic=273937

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