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Cor3_

XFX HD7870 on Mavericks

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Hey, I have a problem that looks as follows: My HD 7870 won't be recognized as a Graphics Card no matter what I do. I tried the DSDT Injection, a whole lot of framebuffers, even patched ones, and it still doesnt work. I can use one out of 2 DVI Ports, can't play any games and can't check the temps any more either. I have an IOReg here: https://hostr.co/HtsmByc1hCjz , the card sits at NPE3@3/display@0. When injected it sits at PEGP/GFX0 but doesn't work, it gives me a white screen for a second and then nothing. (At least with Aji, Chutoro and Hamachi framebuffers) The Default ATY,AMD,RadeonFramebuffer lets me boot but doesn't help with performance. The FB-Rotate app doesn't do anything.

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Did you install any modified AMD kexts except the ones you patched yourself to try new framebuffers? That could be the explanation, because you don't need those with a 7870.

 

From your ioreg I remember seeing some kext duplicates in /System/Library/Extensions and Chameleon's Extra folder. Make sure there are no conflicts and I would recommend you to keep all of them in /S/L/E, as some kexts cannot be injected anyway without proper dependencies.

 

Can you summarize what you have tried so far and what has (partially) worked?

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I haven't installed Chameleon to the HDD yet. I'm booting from the installer.

Haven't installed anything but what I patched myself (DSDT.aml + AMD7000Controller.kext). 

No DSDT, no Kext-mods, GE=no: Boots up, no accel.

No DSDT, no Kext-mods, GE=yes: Boots up, black screen.

DSDT, no Kext-mods, GE=yes/no: Boots up, black screen.

DSDT, Kext-mods, GE=yes/no: Varies from FB to FB, no accel though.

No DSDT, Kext-mods, GE=yes/no: Can't really remember, pretty sure that there was no accel though.

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I have 7870, but dont work with two monitor in DVI (monitor #2 need to remove and connect the cable for activate, lol)

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