For more information, join the team subscribe to the mailing list 
at the bottom of the Launchpad page 

Please join this team if you are new by clicking on the "Join 
Team" link at the right of the Launchpad page. It's important to 
have as many users in the community as possible to request for 
appropriate support.

Sunday, 20 June 2010

Acer TimelineX 4280TG DSDT

One of the Acer Timeline/TimelineX Launchpad team members has reported the DSDT table for this laptops model. It contains one method that looks like will allow for the switch of the D-iscrete GPU:
                                Store (Zero, \_SB.PCI0.LPCB.EC0.PSBB)
                                If (LEqual (Local2, One))
                                    Store (Zero, \_SB.PCI0.LPCB.EC0.DGPU)
                                    If (LEqual (\_SB.PCI0.LPCB.EC0.PSTA, One))
                                        Store (Zero, \_SB.PCI0.LPCB.EC0.PSTA)

                                    \_SB.PCI0.LPCB.EC0.CPOL (0x14)
                                    Store (One, \_SB.PCI0.LPCB.EC0.QEVN)
There seems to be another DSDT for a similar model, according to this blog post:
Nobody confirmed if this is the right way to go for this laptop, so we need to wait for confirmation on this one.