Asus EeePC 1215N

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Integrated card
Intel Corporation N10 Family Integrated Graphics Controller [8086:a001] (rev 02)
PCI slot 00:02.0
Discrete card
nVidia Corporation Device [10de:0a76] (rev a2)
PCI slot 04:00.0

ACPI calls

Switching off

Switching the discrete card off works, but must follow a specific procedure. It lowers the battery discharging rate by around 200mA, giving 10 to 15% more battery life.

To switch OFF:

  • call _SB.PCI0.P0P4.GFX0._DSM with the following parameters:
    • {0xF8,0xD8,0x86,0xA4,0xDA,0x0B,0x1B,0x47,0xA7,0x2B,0x60,0x42,0xA6,0xB5,0xBE,0xE0}
    • 0x100
    • 0x1A
    • {0x1,0x0,0x0,0x3}
  • call _SB.PCI0.P0P4.GFX0._PS3

The card must be switched on again before changing power state (ie. rebooting, powering off or sleeping), or the machine will hang.

Switching on

To switch ON, call _SB.PCI0.P0P4.GFX0._PS0.

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