hybrid-graphics-linux team mailing list archive

[Pierre Chifflier <pollux@xxxxxxxxxx>]

On Thu, May 05, 2011 at 03:47:31PM +0100, Jos Hickson wrote:
> Hi Pierre,
> 
> I might be wrong but I think the _DSM call is what actually turns the nvidia
> card off; the other calls are checks to see if it is off.  So as the _DSM
> call seems to work for you, you might be okay.  What happens to the battery
> usage?

Hi Jos,

Thanks for the tip. I've executed the _DSM call and, at the moment, I do
not see any real change in the remaining time for the battery.
As Debian disables the old /proc/acpi API I can't know the discharge
rate ... So I think it's not working, but I'm not sure.
I'm compiling a 2.6.39-rc4 (with old API support), I'll tell you if
there is any change.

Note: I think part of the problem is caused by ACPI, because while all
function keys are working, the brightness keys are not.

Thanks,
Pierre

> 
> Jos
> 
> On 5 May 2011 13:41, Pierre Chifflier <pollux@xxxxxxxxxx> wrote:
> 
> > Hi,
> >
> > My laptop is a Dell XPS 17 with nvidia GT555M, and at the moment I have
> > no success in trying to switch the nvidia card off.
> >
> > I am using current Debian unstable/sid (kernel 2.6.38-2-amd64) and
> > latest acpi_call.ko from the git repository.
> >
> > I tried several commands, all of them failed with an AE_NOT_FOUND or
> > similar.
> > I also tried the dell702X.sh script from Jos Hickson (
> > https://lists.launchpad.net/hybrid-graphics-linux/msg00663.html ) which
> > fails:
> > $ sudo ./dellL702X.sh off
> > _DSM 0x80000001
> > _PS3 Error: AE_NOT_FOUND
> > Dell L702X Optimus appears to be Error: AE_NOT_FOUND
> >
> > syslog shows:
> > May  5 14:36:32 laptop kernel: [16269.939846] acpi_call: Calling
> > \_SB.PCI0.PEG0.PEGP._DSM
> > May  5 14:36:32 laptop kernel: [16269.939967] acpi_call: Call
> > successful: 0x80000001
> > May  5 14:36:32 laptop kernel: [16269.942746] acpi_call: Calling
> > \_SB.PCI0.PEG0.PEGP._PS3
> > May  5 14:36:32 laptop kernel: [16269.942768] acpi_call: Cannot get
> > handle: Error: AE_NOT_FOUND
> > May  5 14:36:32 laptop kernel: [16269.945422] acpi_call: Calling
> > \_SB.PCI0.PEG0.PEGP._PSC
> > May  5 14:36:32 laptop kernel: [16269.945439] acpi_call: Cannot get
> > handle: Error: AE_NOT_FOUND
> >
> > Here are some more details:
> > # dmidecode -s system-product-name
> > Dell System XPS L702X
> > # lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA
> > 01:00.0 VGA compatible controller [0300]: nVidia Corporation Device
> > [10de:0dcd] (rev a1) (prog-if 00 [VGA controller])
> >
> > I have attached the DSDT and SSDT files (oddly, there are 3 SSDT files).
> >
> > Is there any way to make this card work (or switch it off) ?
> >
> > Thanks,
> > Pierre
> >
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> >
> >