drdaz

I was having a similar issue - thought it was AppleRTC related.

I checked System Preferences | Energy Saver, and for some reason 'Start up automatically after a power failure' wasn't checked anymore! Now that's checked, things are working as they did in Lion for me.

Upgrade worked just fine. Using Chimera 1.11 as my bootloader.

No GFX related kexts or DSDT edits - just GraphicsEnabler=Yes.

Looks like they flip-flopped on the card IDs. Here's what I'm seeing on my ML release version of the file on my MBP:


<string>
  0x019010de&amp;0xfff0ffff
  0x040010de&amp;0xfff0ffff
  0x041010de&amp;0xfff0ffff
  0x041010de&amp;0xfff0ffff
  0x042010de&amp;0xfff0ffff
  0x043010de&amp;0xfff0ffff
  0x046010de&amp;0xfff0ffff
  0x052010de&amp;0xfff0ffff
  0x05c010de&amp;0xffe0ffff
  0x05e010de&amp;0xffe0ffff
  0x060010de&amp;0xffe0ffff
  0x062010de&amp;0xffe0ffff
  0x064010de&amp;0xffe0ffff
  0x086010de&amp;0xffe0ffff
  0x08a010de&amp;0xffe0ffff
  0x0a0010de&amp;0xffe0ffff
  0x0a2010de&amp;0xffe0ffff
  0x0a6010de&amp;0xffe0ffff
  0x0ca010de&amp;0xffe0ffff
  0x0d4010de&amp;0xffe0ffff
  0x10c010de&amp;0xffe0ffff
</string>

Currently installing on my Hack with a GTS250 gfx card... which uses the same driver (since it's the same chip) as the 8800GT. Fingers crossed.