Seems your dsdt has no references to graphics switching methods. Maybe you
should consider posting to launchpad or sending me your SSDT's which can be
found in /sys/firmware/acpi/tables

2010/9/11 Andrew Wright <email address hidden>

> dmidecode -s system-product-name
> HP Pavilion dv7 Notebook PC
>
> dmidecode -s system-version
> 048E100000242B10000020000
>
> lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA
> 01:05.0 VGA compatible controller [0300]: ATI Technologies Inc M880G
> [Mobility Radeon HD 4200] [1002:9712] (prog-if 00 [VGA controller])
> 02:00.0 VGA compatible controller [0300]: ATI Technologies Inc Manhattan
> [Mobility Radeon HD 5000 Series] [1002:68e0] (prog-if 00 [VGA controller])
>
> ~/acpi_call$ ./test_off.sh
> Trying \_SB.PCI0.P0P1.VGA._OFF: failed
> Trying \_SB_.PCI0.OVGA.ATPX: failed
> Trying \_SB_.PCI0.OVGA.XTPX: failed
> Trying \_SB.PCI0.P0P2.PEGP._OFF: failed
> Trying \_SB.PCI0.MXR0.MXM0._OFF: failed
> Trying \_SB.PCI0.PEG1.GFX0._OFF: failed
> Trying \_SB.PCI0.PEG1.GFX0.DOFF: failed
> Trying \_SB.PCI0.XVR0.Z01I.DGOF: failed
> Trying \_SB.PCI0.PEGR.GFX0._OFF: failed
> Trying \_SB.PCI0.PEG.VID._OFF: failed
> Trying \_SB.PCI0.P0P2.DGPU._OFF: failed
>
>
> ** Attachment added: "DSDT.dsl"
>
> https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/312756/+attachment/1569876/+files/DSDT.dsl
>
> --
> support graphics card hot switch
> https://bugs.launchpad.net/bugs/312756
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in X.Org X server: New
> Status in “xorg” package in Ubuntu: Invalid
> Status in “xorg-server” package in Ubuntu: Triaged
>
> Bug description:
> http://forum.notebookreview.com/showthread.php?t=258304
>
> Hybrids with the Ability to turn off the 3d chip:
>
> AMD/ATI calls it PowerXpress and Nvidia HybridPower. It uses 2 graphics
> cards, one energy efficient with little 3d power and the other for gaming
> (fast and uses more/a lot of power), the user can choose which chip to use.
> This is not a new concept. Sony has build in 2 graphics chips into some of
> their laptops for years. In the past a reboot was required to switch between
> the chips. With the new generation it is possible to change between chips on
> the fly, the screen will flicker but no need to reboot. At least in Windows
> Vista (XP, Linux not supported) the user can switch freely between the chips
> or set up a profile to do so automatically (eg when on battery use low power
> chip and when plugged in use the more powerful chip).
>
> The graphic card hybrid not only works with two Nvidia or AMD cards but the
> low power Intel graphics solutions (mostly shard memory) can also be
> combined with 3d chips from AMD or Nvidia. This solution is ideal for users
> who want maximum battery life and be able to play current games. The most
> likely combination is Intel shard memory graphics card for battery life and
> some low to mid level 3d chip. This will not give great 3d performance but
> enable you to play some games.
>
> Limitations are the drivers. Special drivers are needed depending on which
> graphic chips are combined in the hybrid. This will most likely make you
> depended on the Notebook manufactures driver support. It is uncertain if 3rd
> party drivers (such as laptopvideo2go) will be usable.
>
> The following notebooks have Nvidia hybrid graphics (as seen on the link
> below):
> http://www.nvidia.com/object/io_1221136906708.html
> - Sony VAIO Z (Nvidia GeForce 9300M GS & Intel GMA 4500MHD)
> - Fujitsu Siemens Amilo XI 3650 (Nvidia GeForce 9600M GT & Intel GMA
> 4500MHD)
> - BenQ Joybook S42 (Nvidia GeForce 9600M GT & Intel GMA 4500MHD)
>
> On the NVidia side, we reported this issue in the nvnews forum:
> http://www.nvnews.net/vbulletin/showthread.php?p=1916754
>
> On the AMD/ATI side, we got words from Alex Deucher that he will liaise
> with AMD for docs in time:
> > We can definitely look into it, the problem is we already have a
> > backlog of stuff with higher priority (finishing 3D, newer power
> > management bits, investigating IDCT/UVD, etc.) to work through at the
> > moment, so I cannot say when we'd get to hybrid graphics.  The other
> > problem is that since many of these hybrid solutions are multi-vendor,
> > we may not have the rights release certain IP.  Even if would could
> > release some information, as has been stated previously, the driver
> > stack needs significant work to support something like this.
>
> On the Sony Vaio Z series, right now both cards are visible under Linux,
> but there is no way to hot-switching-off (if that is a word...) the Nvidia
> card. There are currently ~45 users of Sony Vaio Z series using Linux that
> would like this feature to be implemented. See:
>
> https://launchpad.net/~sony-vaio-z-series<https://launchpad.net/%7Esony-vaio-z-series>
>
> Also, see:
>
> http://forum.notebookreview.com/showthread.php?t=325616&page=1
> http://forum.notebookreview.com/showthread.php?t=325616&page=2
> http://forum.notebookreview.com/showthread.php?t=325616&page=3
> http://forum.notebookreview.com/showthread.php?t=325616&page=4
> http://forum.notebookreview.com/showthread.php?t=325616&page=5
>
> To unsubscribe from this bug, go to:
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>