minusdriver Posted July 15, 2011 Share Posted July 15, 2011 Well, I guess this is a step forward. I recently installed lion and found my ATI Mobility Radeon 6570 to be fully working on external monitor. Of course....I've only got black screen on my internal display. Has anyone found some kind of work around? Will the same method people are using for the 4000 series work? dsdt.rar Link to comment Share on other sites More sharing options...
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