https://bugzilla.kernel.org/show_bug.cgi?id=109061

--- Comment #6 from Petter Krossbakken <[email protected]> ---
optirun glxgears

dmesg -t:

nvidia-nvlink: Nvlink Core is being initialized, major device number 245
[drm] Initialized nvidia-drm 0.0.0 20150116 for 0000:03:00.0 on minor 1
NVRM: loading NVIDIA UNIX x86_64 Kernel Module  361.28  Wed Feb  3 15:48:04 PST
2016
vgaarb: this pci device is not a vga device
ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20150818/nsarguments-95)
ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20150818/nsarguments-95)
ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20150818/nsarguments-95)
ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20150818/nsarguments-95)
ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20150818/nsarguments-95)
ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20150818/nsarguments-95)
ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20150818/nsarguments-95)
ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20150818/nsarguments-95)
vgaarb: this pci device is not a vga device
nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 
361.28  Wed Feb  3 15:15:17 PST 2016
ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20150818/nsarguments-95)
nvidia-modeset: Unloading
nvidia-nvlink: Unregistered the Nvlink Core, major device number 245
[drm] Module unloaded
bbswitch: disabling discrete graphics
ACPI Warning: \_SB_.PCI0.RP05.PEGP._DSM: Argument #4 type mismatch - Found
[Buffer], ACPI requires [Package] (20150818/nsarguments-95)
pci 0000:03:00.0: Refused to change power state, currently in D0


cat /proc/acpi/bbswitch

`0000:03:00.0 OFF`


cat /sys/bus/pci/devices/0000\:03\:00.0/firmware_node/power_state 

`D3hot`



lspci -v 

`03:00.0 3D controller: NVIDIA Corporation GM108M [GeForce 840M] (rev ff)
(prog-if ff)`


(I learned that the "rev ff" is an indicator of the card being shut off, but I
cant confirm whether the card is actually consuming power or not.)

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