hybrid-graphics-linux team mailing list archive

[Albert Vilella <avilella@xxxxxxxxx>]

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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