Enrico85, on Apr 20 2009, 11:19 AM, said:
I've try the kext for SNC and appear to work but for me the problem are the display driver. ok the switch work but leo not recognize the display because not find the display.
And now the secret for me are the overrides.
What do you think?
I tried AML overriding by adding in the Device(
LCD) of Device(
NGFX) some methods so that Leopard may be able to recognize the LCD, but it seems that there s no effect.
Here is the ACPI specification :
http://acpi.info/
here is the original AML code taken from another laptop, and the internal screen work with QE/CI.
Device ([color="#ff00ff"]LCD[/color])
{
Method (_ADR, 0, NotSerialized)
{
Return (0x0110)
}
Method (MXMX, 1, NotSerialized)
{
Return (One)
}
Method (_DCS, 0, NotSerialized)
{
If (LCDA)
{
Return (0x1F)
}
Else
{
Return (0x1D)
}
}
Method (_DGS, 0, NotSerialized)
{
If (LCDA)
{
Return (One)
}
Else
{
Return (Zero)
}
}
Method (_DSS, 1, NotSerialized)
{
}
}
for instance, we can determine the difference between a vaio AML and another computer's AML.
For my part, I have no computer with Internal screen working.
By the way, you can notice that at boot time in verbose mode,
NGFX : specific family matching fails.
how does Leopard find the name of the Graphics Device in the AML???