I succedded in installing Mac OSX 10.9 in my Dell Studio 1555. Almost everything runs just fine. I made the DSDT from ground up, based on the original of my laptop and the retail macbook pro one.
My specs are:
Processor : Intel Core 2 Duo T6400. Speedstep OK.
Video : Ati Mobility Radeon HD4570, 256 MB, with QE/CI, via custom framebuffer and Clover Injection.
Wireless : I replaced the wifi card for a Atheros AR9285, which works OOB.
Audio : IDT 92HD73C1, working via patched AppleHDA.
Ethernet : BCM5784M, working with custom kext.
CardReader : working with VoodooSDHC.
Webcam : Working OOB.
The only things missing are:
Some Videocard Features:
HDMI works, but if I unplug it the duplication icon remains in the menu bar (system thinks it is still connected).
VGA doesn't work.
The internal laptop screen, suddenly goes off every apron. 20 seconds, like trying to sleep, with mouse click or key press it wakes up. (I realized that if the HDMI were connected previously, i.e.. if the duplication icon is still on, this does not happen).
Battery appears as not installed.
Brightness slider appears but does't work, and keyboard keys does't control it either.
I suspect every missing thing are dsdt-related, but I don't realize how to go on from this point.
Can you please help?
In the attachments is my dsdt.
Thank you very much!!!