The errors I get are these, by the way.
Here's the block in question (the $end is just the end of the file, don't know how to solve that)
Device (DD02)
{
Method (_ADR, 0, Serialized) // _ADR: Address
{
Return (\_SB.PCI0.GFX0.DD02._ADR ())
}
Method (_DCS, 0, NotSerialized) // _DCS: Display Current Status
{
Return (\_SB.PCI0.GFX0.DD02._DCS ())
}
Method (_DGS, 0, NotSerialized) // _DGS: Display Graphics State
{
Return (\_SB.PCI0.GFX0.DD02._DGS ())
}
Method (_DSS, 1, NotSerialized) // _DSS: Device Set State
{
}
Method (_BCL, 0, NotSerialized) // _BCL: Brightness Control Levels
{
Return (\_SB.PCI0.GFX0.DD02._BCL) /* External reference */
}
Method (_BQC, 0, NotSerialized) // _BQC: Brightness Query Current
{
Return (\_SB.PCI0.GFX0.DD02._BQC) /* External reference */
}
Method (_BCM, 1, NotSerialized) // _BCM: Brightness Control Method
{
Return (\_SB.PCI0.GFX0.DD02._BCM) /* External reference */
Arg0
}
}