sony-vaio-z-series team mailing list archive

[Adam Hill <sidepipeuk@xxxxxxxxx>]

On Wednesday 22 June 2011 08:57:01 Joël Bourquard wrote:
> The problem with the SPEED mode (NVidia) is that the brightness stays at
> max, and in most circumstances it's too bright. That's pretty much the only
> reason why I use the Intel card right now.

	Unfortunately that will not be solved until someone gets NVidia drivers 
working in dynamic switching mode, since brightness is controlled by the Intel 
hardware which is completely disabled for static speed mode. This is also the 
case in Windows, and is one reason why static mode doesn't work well for 
Windws.

Adam.


> 
> Best regards,
> 
> Joël
> 
> On Wed, Jun 22, 2011 at 9:43 AM, Piotr Zalewa <piotr@xxxxxxxxxxx> wrote:
> > Thanks Adam
> > 
> > On 06/22/11 08:06, Adam Hill 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!
> > 
> > OK - I thought it does something else as well - my stamina mode is
> > working fine - it's NVidia I wanted to switch on on choice.
> > I'm using 2.6.38-gentoo
> > 
> >         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. )
> > 
> > This would be my case - I don't even have Windows installed at the
> > moment. Trying it now.
> > 
> > 
> > zalun
> > 
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