Code:

Name (OSVR, Ones) Method (OSFL, 0, NotSerialized) { If (LNotEqual (OSVR, Ones)) { Return (OSVR) } If (LEqual (PICM, Zero)) { Store (0xAC, DBG8) } Store (One, OSVR) If (CondRefOf (_OSI, Local1)) { If (_OSI ("Windows 2000")) { Store (0x04, OSVR) } If (_OSI ("Windows 2001")) { Store (Zero, OSVR) } If (_OSI ("Windows 2001 SP1")) { Store (Zero, OSVR) } If (_OSI ("Windows 2001 SP2")) { Store (Zero, OSVR) } If (_OSI ("Windows 2001.1")) { Store (Zero, OSVR) } If (_OSI ("Windows 2001.1 SP1")) { Store (Zero, OSVR) } If (_OSI ("Windows 2006")) { Store (Zero, OSVR) } If (_OSI ("Linux")) { Store (Zero, OSVR) } } Else { If (MCTH (_OS, "Microsoft Windows NT")) { Store (0x04, OSVR) } Else { If (MCTH (_OS, "Microsoft WindowsME: Millennium Edition")) { Store (0x02, OSVR) } } } Return (OSVR) }