Getting 10.6.8 on AMD

[Visioneer]

I've followed a few guides. I've tried a few versions. I can get 10.6.8 to boot. I have extensive boot args I need to apply to get it to boot properly but it works. I don't have QE/CI because I have a Radeon 6950. Has anyone successfully done this?

Anyways my compy;
AMD Phenom II X6 1090t B.E. 16x@200
ASUS Radeon HD 6950 (with unlocked shaders) gfx
ASUS Crosshair V Formula mobo (990 chip)
16gb 4x4gb G.Skill Ripjaw DDR3 1600 RAM
Creative Soundblaster X-Fi Titanium
ASUS 48x DVD/CD Burner
Rosewill 74-in-1 Card Reader

Like I mentioned, I can successfully install (using ModUSB) 10.6.0 from a retail disc, OR 10.6.2 from a retail disc, OR 10.6.3 from retail disc. All of them can install and boot using
arch=i386 -v maxmem=4096 busratio=16
And then what I do next is install the 10.6.7 combo and before restarting I install the 10.6.7 Legacy Kernel, and then I restart. Once booted again with the same args, I install the 10.6.8 combo and 10.6.8 Legacy Kernel. At this point I run multi-beast to get Chimera, ElliotforcelegactRTC, EvOreboot, FakeSMC, NullCPUPowerManagement, and Kext Helper b7.

This can install fine and I can reboot into OSX again with the usual Args. Now, using chameleon wizard, I can set all my args to auto run at boot so my startup is nice. And I can even force the resolution to go to 1440x1024 (even though I selected 1920x1080). I have 2 monitors and it only detects 1 of them and mirrors the other. To get this to work, I add graphicsenabler=yes aticonfig=Gibba atiports=2 and it will run Chimera at 1920x1080x32 but OSX defaults to still mirroring and at this 1440 resolution.

I think this is because of the lame incompatibility of the 6950 in Snow Leopard due to no drivers. Is there any way to get a 100% usable version of OSX on my system? I'm getting versed in this new frontier but I'm still quite unexperienced.

[R:A:W:X86]

Hi!

According to netkas, it must be supported on Mountain Lion since DP1.

In DP3 the ATI drivers changed a lot, even names of the Accelator kext & its bundles have changed.

So I would try to pick up the Extensions from ML DP1 / DP2 and try to install them on Snow Leopard or Lion.
The chance that they will work on Lion is ofcourse better, then it is for Snow Leopard, but Lion doesn't work on your CPU very well until now.

I would recommend you to try using only Framebuffer drivers from ML first, means ATISupport, ATIFramebuffer & ATI6000Controller

If it will give you resolution but no accerlation you can continue with trying ATIRadeonX3000 / AMDRadeonAccelerator (inlcuding those bundels & plugins mentioned here (http://netkas.org/?p=1084))

I do not know if anyone else tried this yet, but I think there is some chance that it can work. :)

[Visioneer]

So how could I get those drivers into my OSX? I don't have a ML distro. Anyone have just those to download?

[R:A:W:X86]

I think you should spend some time for reading through netkas forums:

The gfx card mastermind also posted some patched ML kext files there...

http://forum.netkas.org/index.php/topic,1845.30.html

Don't know if anyone has tried on SL though... (haven't read the hole thread - yours not my business...)

[ghostec]

Hey, pls let me know if it works.. I'm in your same situations, but I never tried the ML kexts.. I don't want to install again Snow to test it, I spent a lot of time recently with osx (tries) stuff.. =/

[Godofwar]

If you can't get 10.6.8 to work, you can always stick with 10.6.6. Like 95 percent of things that work on 10.6.8 work on 10.6.6 from what I noticed. Unless you want to be a gamer because for some reason some games require 10.6.8. Most software will work with 10.6.6. I could never get 10.6.8 to work.

[ghostec]

The problem isn't the OSX version but the video card that only have native support in OSX 10.8 (Mountain Lion).