Comment 523 for bug 752542

Here is the ACPI info for a HP dv6T quad with nidia gt650M:

system-manufacturer : Hewlett-Packard
system-product-name : HP Pavilion dv6 Notebook PC
system-version : 078F100000205720000620100
baseboard-manufacturer: Hewlett-Packard
baseboard-product-name: 181E
baseboard-version : 52.18
bios-vendor : Insyde
bios-version : F.0A
bios-release-date : 05/02/2012

lcpci for Intel:
00:02.0 VGA compatible controller [0300]: Intel Corporation Ivy Bridge Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
 Subsystem: Hewlett-Packard Company Device [103c:181b]
 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
 Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
 Latency: 0
 Interrupt: pin A routed to IRQ 44
 Region 0: Memory at d3000000 (64-bit, non-prefetchable) [size=4M]
 Region 2: Memory at c0000000 (64-bit, prefetchable) [size=256M]
 Region 4: I/O ports at 5000 [size=64]
 Expansion ROM at <unassigned> [disabled]
 Capabilities: <access denied>
 Kernel driver in use: i915
 Kernel modules: i915

lspci for nvidia:
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation Device [10de:0fd1] (rev ff) (prog-if ff)
 !!! Unknown header type 7f