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Screen not displaying Right 5770


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So, This is really annoying! lol


My screen keeps messing up, smudged,letters missing, Distorted.... I don't know what to call it :P


Ive tried all ports, Diff monitors, GPU is detected fine and everything, It is useable-ish on 10.8.2 but not at all on 10.8.4.



ATI Radeon HD 5770:


  Chipset Model: ATI Radeon HD 5770

  Type: GPU

  Bus: PCIe

  PCIe Lane Width: x16

  VRAM (Total): 1024 MB

  Vendor: ATI (0x1002)

  Device ID: 0x68b8

  Revision ID: 0x0000



The card is working fine in windows so that is not the issue.


smbios is set to mac pro 5.1 and ATICONFIG set to vervet, 


Kext loaded are


Amdsupport 8.0.0

amd5000controller 8.0.0

amdRadeonAccelerator 1.0.0

amdframebuffer 8.0.0


Any idea's?







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  • 5 months later...



I don't know if you follow this thread but just to say that this card is recognized OOB under SL, Lion, ML and recently Mavericks


it works with or without GraphicsEnabler


the default framebuffer is Vervet but it seems Hoolock is better (a little)



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