Please keep providing DSDT.dsl information in this bug report:
https://bugs.launchpad.net/ bugs/312756
This is the list of calls to turn off the switchable graphics card in Linux so far:
\_SB.PCI0.P0P1.VGA._OFF
\_SB_.PCI0.OVGA.ATPX
\_SB_.PCI0.OVGA.XTPX
\_SB.PCI0.P0P2.PEGP._OFF
\_SB.PCI0.MXR0.MXM0._OFF
\_SB.PCI0.PEG1.GFX0._OFF
\_SB.PCI0.PEG1.GFX0.DOFF
\_SB.PCI0.XVR0.Z01I.DGOF
\_SB.PCI0.PEGR.GFX0._OFF
If you haven't tried the switchable graphics feature in Linux yet, have a look at your DSDT.dsl file. With a bit of luck, you may be able to identify one of the methods above.
https://bugs.launchpad.net/
This is the list of calls to turn off the switchable graphics card in Linux so far:
\_SB.PCI0.P0P1.VGA._OFF
\_SB_.PCI0.OVGA.ATPX
\_SB_.PCI0.OVGA.XTPX
\_SB.PCI0.P0P2.PEGP._OFF
\_SB.PCI0.MXR0.MXM0._OFF
\_SB.PCI0.PEG1.GFX0._OFF
\_SB.PCI0.PEG1.GFX0.DOFF
\_SB.PCI0.XVR0.Z01I.DGOF
\_SB.PCI0.PEGR.GFX0._OFF
If you haven't tried the switchable graphics feature in Linux yet, have a look at your DSDT.dsl file. With a bit of luck, you may be able to identify one of the methods above.