sony-vaio-z-series team mailing list archive

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On 05/25/2010 04:20 PM, Sebastian Daehne wrote:
> hi all,
>
> good news:
> https://bugs.freedesktop.org/show_bug.cgi?id=27207#18
>
> this patch made my intel gpu working with correct colors, now I just
> need a
> way to switch off the nvidia card without the "reboot-trick" and get
> suspend to ram working (atm the display stays black when resuming from
> suspend
> to ram) .. any ideas?
>
> regards
>
> Sebastian
>
That's pretty much good news - personally i'd use primarily the intel
card in linux, its plenty powerful enough. the Nvidia is really just for
games, 3D renders, GPGPU and the like, and the HDMI output for me.

To disable the nvidia gpu, you can try the small modification to the
sony-laptop module i've posted in the other thread (change OVGA by GFX0).
It seems to disable the gpu fine, just doesn't re-enable properly, but
at least heat and power consumption should be better.
The module also tries to re-enable the intel gpu at wake up. I haven't
tested if it works.
Til either I figure out (probably aka find time for reading and learning
ACPI deeper), or someone else with more knowledge does it.