sony-vaio-z-series team mailing list archive

[Qingping Hou <dave2008713@xxxxxxxxx>]

hi all,

I was wondering will bumblebee project help with dynamic switch under Linux?

Hou Qingping

On Wed, Jun 22, 2011 at 3:06 PM, Adam Hill <sidepipeuk@xxxxxxxxx> wrote:
>
>        To be honest I'm not sure that there is any need to use my kernel any
> more - it was useful when the Intel graphics just didn't work from the stock
> kernels but recent versions work pretty well out of the box. So, my advice
> would be just to find the latest kernel you can for Gentoo - someone will have
> compiled the latest mainline one somewhere!
>
>        There are still a few tweaks that you need to do... either:
>
> 1) If you never ( or hardly ever ) run Windows, add acpi_osi="" to the kernel
> boot parameters. This will set the BIOS in to static switching mode whenever
> you shutdown/reboot when running Linux. I.e. the first time you run Linux, you
> will need to reboot, but from then on the appropriate speed/stamina LED should
> come on as soon as the machine powers up and only one card will be visible. If
> you want to switch between the two cards you'll need to switch the
> speed/stamina switch and reboot, and then use some sort of trickery to make
> sure that the correct X drivers and libraries are loaded. I've posted a script
> which may work for this purpose but would have to be modified for Gentoo (
> Ubuntu users can use the neater "alternatives" method. )
>
> 2) If you regularly run Windows, and are happy to only use the Intel card in
> Linux, then use the latest Linux kernel with Norbert's latest experimental
> sony-laptop-zseries module ( static switching doesn't work well with Windows.
> ) As long as you make sure you're in stamina mode at boot, the module powers
> off the NVidia card to save battery life ( though it still appears on the bus.
> ) If doing this, DON'T use the acpi_osi="" boot parameter.
>
> 3) If you regularly use Windows but also want to use NVidia in Linux, you
> don't have much choice but to use method 1), but you'll probably have to boot
> Windows twice whenever you've used Linux to make sure that dynamic mode is
> enabled again.
>
>        Sorry that I can't give specific help for Gentoo....
>
> Adam.
>
>
> On Tuesday 21 June 2011 13:10:48 Piotr Zalewa wrote:
>> Hi
>>
>> Do you know about any tutorial how to install Adam's patch on non Ubuntu
>> system?
>> I use Gentoo for years, but I've got no experience in kernel and
>> especially module patches
>>
>> Thanks
>> zalun
>>
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