1. Join Date
    Jul 2011
    Posts
    139
    System
    Gigabyte Z68
    CPU
    i7-2600k @ 4.5ghz
    Graphics
    CrossFire AMD Radeon HD 6870 1GB
    Online
    Colton328 is offline
    MacBook Pro
    #1

    Mountain Lion 6XXX GPU Issues - FIX INSIDE!


    Since many of you have issues getting your AMD Radeon HD 6000 series card to work in Mountain Lion (when it worked great in Lion), I decided to make this guide.

    Credits: Haysphere

    Part 1: Setting up the UniBeast Drive
    1. Insert your UniBeast Flash Drive into a working Mac. Maybe your MacBook Pro, working Lion installation, etc.
    2. Run this command in terminal to unhide files "defaults write com.apple.finder AppleShowAllFiles 1" (copy and paste that into terminal and hit enter)
    3. Force Finder to quit. You can do this in activity monitor. It will automatically restart.
    4. Open Finder and navigate to your UniBeast Drive
    5. Navigate to System/Library/Extensions
    6. MAKE A BACKUP OF the kext "ATI6000Controller.kext" and then DELETE it.

    Part 2: Booting from your UniBeast Drive
    1. Boot from your UniBeast drive like you usually would. Use the command "GraphicsEnabler=No" in order to boot into Mountain Lion Installer
    2. Install Mountain Lion as you usually would
    3. After installation, bootup Mountain Lion by booting into your flash drive and then booting into ML, using the command "GraphicsEnabler=No"
    4. Copy the ATI6000Controller.kext kext to your new desktop
    5. Run KextBeast (Download: http://www.tonymacx86.com/downloads.php?do=cat&id=3)
    6. Reboot

    Now your graphics should work. I have two monitors (Apple Cinema Display and another 25" 1080p monitor) running with full graphics acceleration Very fast and no lag!

    For those wondering, I fixed my machine in my sig by replacing the parts with the exact same things. Not everything blew. I now run a surge protector on my phone line and computer.

    You're welcome!
    My Build: i7-2600K - DUAL 6870's = GA-Z68XP-UD3

  2.   
    Join Date
    Jun 2011
    Posts
    37
    System
    Z68x-UD5-B3
    CPU
    i7 2600K
    Graphics
    GTX 670
    Geekbench Score
    15ish
    Online
    10terabyte is offline
    Android Phone iPhone MacBook Pro
    #2
    Giving this a shot now. Thanks for the consolidated info. Will report back.

  3. Join Date
    Jan 2012
    Posts
    191
    System
    GA Z77X-UD5H
    CPU
    i7 3770K
    Graphics
    Radeon 6870
    Online
    iGee is offline
    iPhone MacBook Pro PowerMac
    #3
    I worked this out earlier and it aloud me to boot, but i only have one resolution. Does anyone know how to fix that?

  4. Join Date
    Jul 2011
    Posts
    139
    System
    Gigabyte Z68
    CPU
    i7-2600k @ 4.5ghz
    Graphics
    CrossFire AMD Radeon HD 6870 1GB
    Online
    Colton328 is offline
    MacBook Pro
    #4
    Quote Originally Posted by iGee View Post
    I worked this out earlier and it aloud me to boot, but i only have one resolution. Does anyone know how to fix that?
    Follow part 2. Restore the kext using KextBeast and then fix permissions. Reboot and you should be up and going.

    After doing that, and rebooting, I had native resolutions on both my displays and full graphics acceleration support.
    My Build: i7-2600K - DUAL 6870's = GA-Z68XP-UD3

  5.   
    Join Date
    Jun 2011
    Posts
    37
    System
    Z68x-UD5-B3
    CPU
    i7 2600K
    Graphics
    GTX 670
    Geekbench Score
    15ish
    Online
    10terabyte is offline
    Android Phone iPhone MacBook Pro
    #5
    Quote Originally Posted by 10terabyte View Post
    Giving this a shot now. Thanks for the consolidated info. Will report back.
    Perfect. Now onto MultiBeast. Thanks!

  6. Join Date
    Dec 2010
    Posts
    34
    System
    GA-Z68XP-UD3 MB
    CPU
    Intel Core i7-2600K
    Graphics
    GIGABYTE ATI Radeon HD6870 1GB
    Online
    stevodevo is offline
    #6
    Thanks so much guys! I followed these instructions and am now writing this from my ML install with dual monitors working (and I think the screen looks sharper and better than in Lion)!
    GA-Z68XP-UD3 MB| ALC889 | Intel Core i7-2600K | GIGABYTE ATI Radeon HD6870 1GB | 16GB RAM | Dual Screen

  7. Join Date
    Aug 2011
    Posts
    7
    System
    Gigabyte Z68X-UD4-B3 (F8)
    CPU
    Intel Core i5-2500K Sandy Bridge 3.3GHz
    Graphics
    AMD Radeon HD 6850
    Online
    ptrezby1 is offline
    #7

    Works Like a Charm


    Many thanks! Followed the post verbatim and it worked perfect ... now on 10.8!!
    Gigabyte Z68X-UD4-B3 (F8) |Core i5 - 2500k | AMD Radeon HD 6850
    4x2Gb 1600Mhz DDR3 | WD Caviar Black 1Tb (qty 2)

  8. Join Date
    Apr 2012
    Posts
    19
    System
    Gigabyte Z68MX-UD2H-B3 v1.3 F13
    CPU
    Intel Core i5 2500K 3.3GHz
    Graphics
    Saphire HD 6870
    Online
    NickRno77 is offline
    #8
    Worked for me as well, thanks very much. Only problem I have because I use the Display Port if the org.chameleon.Boot.plist changes back to defaults after reboot Monitor does not sync, I have to login to computer remotely to restore the org.chameleon.Boot.plist file.
    Nick
    _____________________
    My Hackintosh Build
    NickRno77 Build - i5 2500K - GA-Z68MX-UD2H - HD 6870
    http://tonymacx86.com/viewtopic.php?f=54&t=63903

  9.   
    Join Date
    Apr 2011
    Posts
    31
    System
    GA-Z77-D3H
    CPU
    Intel i5 K @3,4
    Graphics
    XFX Radeon 7870
    Geekbench Score
    12403
    Online
    TheEdge_ is offline
    Android Phone Windows Phone
    #9
    Thanks!! that worked great for me.

    Now i am up and running

  10. Join Date
    Jun 2010
    Posts
    1,171
    System
    10.8
    CPU
    i7 930
    Graphics
    6870
    Geekbench Score
    11000
    Online
    jpa is offline
    iPhone MacBook Air
    #10
    thanks for info
    GIGABYTE GA-X58A-UD3R v2.0 FF, Intel Core i7-930 @ 3.6 GHZ, G.SKILL Sniper 16GB DDR3 1600 MHZ - Lion 10.7.2 - 64 bits - Corsair SSD 120 GB + 5 TB - Corsair Cooling Hydro H60 / XFX HD6870 2GB

    Extras
    - Guide Lion Works in GA-X58A-UD3R v2.0
    - Community Post - Best Ideas

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