hybrid-graphics-linux team mailing list archive

[Tais Plougmann Hansen <taisph@xxxxxx>]

Doesn't that really depend on the system? I can change Display/GPU in the
BIOS on my ThinkPad W520 with Optimus. I can force the discreet/Nvidia GPU
which effectively disables the integrated chipset and vice versa.

On Sun, Jun 5, 2011 at 16:31, Joaquín Ignacio Aramendía
<samsagax@xxxxxxxxx>wrote:

> > Is something like this even currently doable?
>
> Short answer: No, it can't.
>
> I'm not an expert but as the time goes and we are able to test and
> experiment with Optimus machines, we have found that:
> - The Nvidia card is conected to the intel integrated and not to the
> screen.
> - There is no way to turn off integrated without losing the monitor.
> - The only thing plugged directly to the Nvidia card is the HDMI port (I
> cant test it, I don't have any HDMI capable hardware).
>
> Hope this can help you. The bumblebee project is the way to use it and
> we are going to develop it as much as we can in conjunction with
> acpi_call to add functionality to mimic Optimus. But if NVIDIA corp is
> not going to help us, we must help ourselves.
> --
> Joaquín Ignacio Aramendía <samsagax@xxxxxxxxx>
>
> El dom, 05-06-2011 a las 02:51 -0400, James escribió:
> > 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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-- 
Regards,
Tais Plougmann Hansen

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