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HP Probook 6540b with ATI Mobility 4550

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I have ATI mobility 4550 on probook with 1600x900px display. How to set my card to work in Lion 10.7.2 (11C74).

My id is 1002_9555 4550/4300M/4500M. with 512MB. Only have resolution 1024x768 :whistle:

HP Probook 6540b any success with Lion or Moutain Lion with this laptop? Thanks.

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You use this in org.ChameleonBoot.plist?



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Yes i did that... and Lion wont boot just block. Now only works GraphicsEnabler=No with no kext loaded only 3mb on 1024x768 resolution.

Any good kext or fix for Ati mobility 4550 ID 1002 9555? What bootloader to use and what kext use full resolution 1600x900 on lion 10.7.2?

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