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dionnode

dionnode

Member Since 20 Dec 2007
Offline Last Active Aug 13 2013 07:18 PM
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#1834611 AMD Radeon problems DP4

Posted by dionnode on 17 July 2012 - 01:58 PM

You have mentioned this for LION GM? Do you have anything to tell about Mountain Lion GM ? as i have many issues on Radeon 6850 like no proper Vram or white screen problem. Share your opinions Hi, Indeed I had the problem white screen at boot. Fortunately I have ML DP3 working very well (made by MyHack 3.2). What I did: Removed some ATI*kext from USB installer ML DP4 or GM Mountain made by MyHack 3.2 (here it has only 7 ATI*.kext). Copy from DP3 ( 17 ATI*.kext containing about 30 Mb) to USB installer with permission... Put a flag at boot: -v PciRoot=1 With this action, ML DP4 and GM Mountain installed successfully. I hope this help.
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