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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:
http://skroslak.wordpress.com/2008/01/11/custom-dsdt-loading-on-toshiba-p100p105-laptops-for-ubuntudebian/
Nobody confirmed if this is the right way to go for this laptop, so we need to wait for confirmation on this one.

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