maroder

Hello,

my hackintosh is unusable right now and I am really at a loss what to do. All problems started with 10.8.2 after I changed my graphics card to an Asus Direct CU II 2GB 660 ti. Since then I'm getting random sort-of-freezes or a scrambled screens, whenever I stat an OpenGL Application after waking my hack from sleep. With native drivers sometimes wakeup after sleep only gave me a black screen. The new Nvidia drivers solved that issue, but freezes still remain. If the screen freezes in an OpenGL Applications (eg. Starcraft 2), I still can move the cursor.

I tried may possible solutions, even extracted, patched and compiled  my DSDT a second time. I installed the new Nvidia drivers, applied the OpenCL-Fix. Even reinstalled from scratch. Nothing seems to help. It definitly is a graphics card/driver issue, as before swapping the card, my hackintosh would run supersmooth.

The graphics card itself is not broke, as I'm running on windows right now and have no freezes, even when playing demanding games such as BF3. Sleep is also no problem here.

The console show this error message when the screen freezes or scrambles after sleep.
9/17/12 8:22:59.000 AM kernel[0]: NVDA(OpenGL): Channel exception! exception type = 0xd = GR: SW Notify Error
NVDA(OpenGL): Channel exception! exception type = 0x1f = Fifo: MMU

Any help would be grately appreciated, as I really would like to boot up and work with my hack again

Cheers Maroder

Hello,

I searched for for this, but I can't seem find a conclusive answer to my question.

What is the difference when using the system definition "MacPro 3.1" in my smbios.plist in comparison to using other models (e.g. "iMac 11.2"). A lot of information I found indicated, that for example the powermanagement of the graphics card won't get loaded when using "MacPro 3.1" as system definition.

This is somewhat odd, as my graphics card seems to be throttling, when idling on the desktop even so I'm using the MacPro 3.1 definition.

Furthermore the general conclusion seems to be, to choose a mac model close to you own hardware. But if i choose the "iMac 11.2", whitch should resemble my i7 860, speedstepping doesn't seem to work as good as when I choose "MacPro 3.1" as system definition. With the "iMac 11.2" system definition i only get 2 p-states (9x 21x) while the "MacPro 3.1" definition gets 4 p-states (9x 11x 16x 21x).

Could someone shed some light on what the link is between the mac definition in smbios.plist and the usage of os features?
Does choosing the "wrong" mac definition affect e.g. hyperthreading or performance in generell?

Thank you very much for any input.