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ATI Radeon HD MOBILITY 2400 / 2600 / 2900 / 3850 / 3870


sjoseph
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Credit goes to Clark971

 

How to get to Resolution 1152x864

 

*Look here : http://netkas.org/?cat=7 in particular this topic http://netkas.org/?p=56

 

Boot into safe mode, put Natit.kext in /System/Library/Extensions/ and remove all ATI***.kext files !!

 

To install it, activate the root account, it's very important. Go to your HD and then Applications/Utilities. Open Directory Utility. Click the unlock in the Directory Utility window.

Enter an administrator account name and password, then click OK. Choose Enable Root User from the Edit menu and enter the root password you wish to use in both the Password and Verify fields, then click OK.

 

Now open Terminal and type :

su (press enter and type your root password and repress enter)

sudo chmod -R 755 /System/Library/Extensions/Natit.kext (press enter)

sudo chown -R root:wheel /System/Library/Extensions/Natit.kext (press enter)

kextload /System/Library/Extensions/Natit.kext (press enter)

kextcache -k /System/Library/Extensions/ (press enter)

sudo diskutil repairPermissions / (press enter)

Reboot.

 

 

*If you don't have any password for your account, create one (it's not hard I won't explain). You will be able to change or remove it after.

 

Now open Terminal and type :

 

sudo nano /Library/Preferences/SystemConfiguration/com.apple.Boot.plist (press enter)

 

It will ask a password for sudo, it's your password account. If you don't have any

password and try to do it, it won't work.

Now your com.apple.Boot.plist file is opened and you can modify it as you want.

You can see a lot of :

 

 

<key>xxx</key>
<string>xxx</string>

Copy one of them (with the spaces to respect the alignment) and paste it after the last one replacing :

 

 

<key>Graphics Mode</key>
<string>1440x900x32</string>

 

Other tip : to speed up Darwin's timeout count-down

 

 

 

<key>Timeout</key>
<string>25</string>

(replace the 25 by the number of seconds you want)

 

Now save your file (It's "Write out" Ctrl + O) It will ask a name, don't worry if you see "$t" only in the name, don't touch and press enter.

 

Reboot and enjoy

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  • 4 months later...
  • 3 months later...
Wat does it mean? 2600 mobilty working without "-x"? -_-

 

Yeah working without -x but only with 1152x864 AND no QE/CI support. So a little bit useless, just more beautiful than the ugly 1024x768.

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  • 9 months later...
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