Comment 718 for bug 752542

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http://uppit.com/qnfm4qsxder1/LENOVO-HuronRiver_Platform.tar.gz

Lenovo Z570
nVidia GT540M Optimus
64Bit

# cat /proc/acpi/dump_info
0000:00:00.0 060000
0000:00:01.0 060400 \_SB_.PCI0.PEG0
0000:00:02.0 030000 \_SB_.PCI0.GFX0
0000:00:16.0 078000
0000:00:1a.0 0c0320 \_SB_.PCI0.EHC2
0000:00:1b.0 040300 \_SB_.PCI0.HDEF
0000:00:1c.0 060400 \_SB_.PCI0.RP01
0000:00:1c.1 060400 \_SB_.PCI0.RP02
0000:00:1c.3 060400 \_SB_.PCI0.RP04
0000:00:1d.0 0c0320 \_SB_.PCI0.EHC1
0000:00:1f.0 060100 \_SB_.PCI0.LPCB
0000:00:1f.2 01018f \_SB_.PCI0.SAT0
0000:00:1f.3 0c0500 \_SB_.PCI0.SBUS
0000:00:1f.5 010185 \_SB_.PCI0.SAT1
0000:01:00.0 030000 \_SB_.PCI0.PEG0.PEGP
0000:01:00.1 040300
0000:03:00.0 028000 \_SB_.PCI0.RP02.PXSX
0000:04:00.0 020000 \_SB_.PCI0.RP04.PXSX

# dmesg |tail -1
[ 4166.439123] pci 0000:01:00.0: Refused to change power state, currently in D0

# dmesg | grep -C 10 bbswitch
[ 4158.689638] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20131218/nsarguments-95)

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