hybrid-graphics-linux team mailing list archive

[James <jgeboski@xxxxxxxxx>]

For my L702X with an NVIDIA 550M, I used the ACPI methods from Jos
Hickson's dellL702X.sh script.

Methods:
    Turn on NVIDIA: \_SB.PCI0.PEG0.PEGP._PS0
    Turn off NVIDIA: \_SB.PCI0.PEG0.PEGP._PS3

The dellL702X.sh script:
https://lists.launchpad.net/hybrid-graphics-linux/msg00663.html

James

On Sun, Jun 5, 2011 at 11:44 AM, Albert Vilella <avilella@xxxxxxxxx> wrote:
> As far as I know, we haven't been able to decode the on/off switch for
> the modern XPS models, and it's a pity because we have dozens of users
> in the launchpad team, for the L501X, L502X and L702X models. The
> DSDTs are here:
>
> https://bugs.launchpad.net/lpbugreporter/+bug/752542
>
> If there is any ACPI expert in the list, please have a look at those,
> see if we can find the on/off graphics switch.
>
> On Sun, Jun 5, 2011 at 7:51 AM, James <jgeboski@xxxxxxxxx> wrote:
>> Hello all,
>>
>> I'm recently got a Dell L702X and so far it's been a rather nice
>> machine aside from the Optimus hurdle.  So far, it works just fine
>> with the Intel chip, actually compiz capable but, I've got a 550M next
>> to it.  So far, I've managed to use the acpi_call module
>> (http://github.com/mkottman/acpi_call) to turn on and off the NVIDIA
>> chip and I can confirm this by the amount of power being drawn from
>> the battery.  My question is, with the NVIDIA chip enabled, is there
>> anyway to have the NVIDIA proprietary driver take over?  I've tried
>> this with and without the Intel VESA module but, with the same result,
>> a black screen.  The monitor does not turn off into a standby state,
>> it simply just display no content.  My guess would be that everything
>> must go through the Intel chip before it can hit the NVIDIA and that
>> the NVIDIA chip has to send everything back to the Intel chip due to
>> the monitor being connected to the Intel chip.  Ideally I'd like to
>> just have the NVIDIA chip always on with the NVIDIA driver handling
>> things but, I suppose if it was this easy, there would be no need for
>> the bumblebee project.  Is something like this even currently doable?
>>
>> Thanks,
>> James
>>
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>