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Update works! but AppleHDA rollback don't work, no audio. I have ALC8xxHDA on E/E Dsdt F15 any idea

I installed Lion from SL 10.6.8, I have a HD 5770 but it works just the DVI output, and shows the background mirror universe, not the main screen. I have two problems: 1) graphic card don't recognized if graphic enable "no" and no (QE/CI) and 1280x720 resolutions in DVI output, but DVI work...

I downloaded lion ... I installed it on S.L.... I rebooted using the guide ... I installed the partition installer xmove ok ... I choose restart installer ... all is well up to a point that we start throwing the white boot screen with the apple and hangs them ... ani idea thank you

I installed a graphics card nvidia gt 220 1 GB DDR3 last generation, and I have this problem, continues to flash the blue screen, sometimes it stops and the screen is in place, but enough that I click on the monitor detects that continues to flash... Any idea...

Hello everyone I have a problem that should be resolved, which will not come to end: I gigabite P55A-UD4 vers 2 F15 bios, i7 875K with 8 gb ram Video Card Zotac 450Gts 1G DDR5, everything worked like clockwork, except the last reboot screen goes black. I used iBoot > sl dvd original >...