vaio vpcs12c5e

Hi,
I've tried to install mountain lion on my laptop vpcs12c5e (on that there is already installed os x Lion), like Lion after the boot screen of mac os the output of the display became the hdmi port, and the monitor of the laptop swich off.
This is the hardware of my pc:

CPU: DualCore Intel Core i5 540M, 2800 MHz (21 x 133)
GPU: NVIDIA GeForce 310M
Audio: Realtek ALC275 @ Intel Ibex Peak PCH - High Definition Audio Controller [B-2] PCI
nVIDIA HDMI @ nVIDIA GT218 - High Definition Audio Controller PCI
LAN: Atheros AR8131 PCI-E Gigabit Ethernet Controller (NDIS 6.20)

Lan, Bluetooth, Audio with internal microphone are working on Lion, hope they'll work also on Mountain Lion
On Lion I've got internal display working using the flag: GraphicsEnabler=No but I'm looking for a dsdt patch

Hope someone could help me

This is the DSDT extracted:

after some work i managed to install os x ml on the pc, removing all nvidia kext from the usb installation key.
Now i've got bluetooth, touchpad and lan full functional but the internal display (after that i've put the ids of the card into the kext) switch off after that the desktop is loaded and the hdmi port turns on, and the sound card doesn't work.
Again could anyone help me?

i'm interested on how did you install ML on your viao. i have a vpcea16FA and it won't work with ML (issues on the usb installer "waiting for root device). Coul you please give me the tuto that you used to get it work?
good luck for finding the good sound driver !