Asus U41SV hybrid graphics linux -- acpi_call DSDT info

One of the team members posted the DSDT info for a ASUS U41SV laptop. The two calls to turn on/off the card are like this:

                                                    \_SB.PCI0.PEG0.GFX0.DOFF

                                                    \_SB.PCI0.PEG0.GFX0.DON

Code snippet:

        If (LEqual (_T_0, 0x03))

                                        {

                                            And (Local0, 0x03, Local0)

                                            If (LEqual (Local0, 0x01))

                                            {

                                                \_SB.PCI0.PEG0.GFX0.DON ()

                                                Return (0x01)

                                            }

                                            Else

                                            {

                                                If (LEqual (Local0, 0x02))

                                                {

                                                    \_SB.PCI0.PEG0.GFX0.DOFF ()

                                                    Return (0x00)

                                                }

                                                Else

                                                {

                                                    Return (\_SB.PCI0.PEG0.GFX0.DSTA ())

                                                }

                                            }

                                            Return (0x01)

                                        }

ASUS U36JC from 4 to 7 hours of battery life with linux acpi_call

One of the linux hybrid graphics team members has reported that the ASUS U36JC laptop will go from 4 hours to 7 hours of battery life using acpi_call to switch on/off the nvidia card:

system-version
U36JC
1.0

00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] h(rev 18) (prog-if 00 [VGA controller])
01:00.0 VGA compatible controller [0300]: nVidia Corporation GT218 [GeForce 310M] [10de:0a70] (rev ff) (prog-if ff

More methods for acpi_call

The git log for the acpi_call source code shows recent additions to the list of switch on/off methods found in the DSDT.dsl table files provided by the Linux Hybrid Graphics team members. The lastest one is for the Asus N53SN laptop.

For more details on acpi_call, see https://launchpad.net/~hybrid-graphics-linux

commit 984592a4b3b42468f684da928bd10db1fa054964
Date:   Wed Mar 23 09:32:13 2011 +0000

    adding method from another Asus N model

commit fda3afe87f434cf1611ed1fe5b2fe26b554319e5
Date:   Thu Mar 3 20:34:37 2011 +0100

    Added Asus 1215n files by Pete Eberlein forgotten in manual merge.

commit 9da5be8957ffec0d45447e8f967203bc1a32e832
Date:   Mon Dec 13 19:54:18 2010 +0000

    adding method for Asus EeePC 1015PN

commit 39152d2a0e429927995232beeae7381caa7831d3
Date:   Mon Dec 6 12:20:18 2010 +0000

    adding HP.Pavilion.Dv6-3031ss method

commit 36a13f3615ea6f826a0775c4cd1b5f20b13100c7
Date:   Tue Nov 23 10:32:40 2010 +0000

    adding method Samsung Q330

More Bumblebee updates -- automatic switching with acpi_call

Martin Juhl has been relentlessly working on bumblebee and he just started working on automatic switching support for Ubuntu, while work is also being done to support other distributions.

The idea is to have the nvidia card always switched off and automatically switch it on when a program is executed using optirun. Once the program finishes, the card will automatically switch off again. The current implementation uses acpi_call, so only laptop models supported in acpi_call will have this feature working, at least for a while.

For more information:

http://github.com/MrMEEE/bumblebee

http://twitter.com/#!/martinjuhl

PD: Martin's Bumblebee Project open source efforts are being fuelled by RedBull, find his donations account below if you want to buy him more:

https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=mj%40casalogic%2edk&lc=US&item_name=The%20Bumblebee%20Project%20by%20Martin%20Juhl&amount=3%2e00¤cy_code=EUR¤cy_code=EUR&bn=PP%2dDonationsBF%3abtn_donateCC_LG%2egif%3aNonHosted