Disable nvidia optimus asus s56cm

yes common method in Osx world.

i can make that happen for OSX only in dsdt

Method (_WAK, 1, Serialized)
{
If (_OSI ("Darwin"))
{
PINI ()
}
WAK (Arg0)
Return (Package (0x02)
{
Zero,
Zero
})
}

Method (_INI, 0, NotSerialized)
{
Store (0x07D0, OSYS)
If (CondRefOf (\_OSI, Local0))
{
If (_OSI ("Windows 2001"))
{
Store (0x07D1, OSYS)
}
If (_OSI ("Windows 2001 SP1"))
{
Store (0x07D1, OSYS)
}
If (_OSI ("Windows 2001 SP2"))
{
Store (0x07D2, OSYS)
}
If (_OSI ("Windows 2001.1"))
{
Store (0x07D3, OSYS)
}
If (_OSI ("Windows 2006"))
{
Store (0x07D6, OSYS)
}
If (_OSI ("Windows 2009"))
{
Store (0x07D9, OSYS)
}
If (_OSI ("Darwin"))
{
Store (0x07D6, OSYS)
PINI ()
}
}
}

not sure %100 but i believe this activates the PINI method if OSI is Darwin not windows