sony-vaio-z-series team mailing list archive

[dump@xxxxxxxx]

Hi - "First of all". I had found no mention of a mailing list on your 
webpage. I am actually not a ubuntu user. Apologies.
I'm now registered there however.

I dumped my ACPI and interpreted it with intel's iasl. Works fine. I 
found out in the DSDT that the module's path for activating the video 
card mode changed from OVGA to GFX0.

Changing the relevant string in sony-laptop.c from OVGA to GFX0 (its a 
zero in this one) will more or less work. After this change you can echo 
speed or stamina in the relevant sys entry, like for previous Z laptops. 
The LED will lit accordingly and the card seems activated as it is 
detected by the nvidia driver after this change. However on my kernel, 
there still seems to be some ACPI troubles and the card does not appear 
to be fully active, or something like that. That is, it will refuse 
copying from/to video memory and thus X will still fail to start.

Going to try to find out what's the difference between this and when I 
activate the card using an older kernel (the acpi_osi="!Windows 2006" 
trick does not work for me even after several reboots - however the 
keyboard works properly only with this option on, when the nvidia card 
is activated - yeah its a bit messy).

The ACPI documentation is huge so i'm skipping parts and doing a lot of 
guessing instead - if anyone having a real understanding of ACPI feel 
free to correct me anywhere I could be wrong or assuming things wrongly.

ps: i have an european version of the Z11, I am also assuming the 
firmware is different from the US version, as I have read somewhere 
(forgot where ;)


On 5/23/2010 2:20 PM, Norbert Preining wrote:
> Hi Kang,
>
> first of all, please always contact the sony vaio Z mailing list
> for all issues, not me personally.
> 	sony-vaio-z-series@xxxxxxxxxxxxxxxxxxx
>
> On So, 23 Mai 2010, kang wrote:
>    
> > What I need the module for mainly is switching hybrid graphics so that I
> > can start Xorg more easily.
> >
> > When switching it's complaining (and failing) with :
> >
> > \_SB.PCI0.VGAO._DSM failed: 5
> >
> > I extracted the acpi DSDT table which seems to contain information about
> > this but i'm unable to figure out how to read it at the moment
> >      
> Neither am I ... could it be that you have a too new BIOS?
>
> Maybe someone else can help here, but all that hypbrid graphcis
> card switching is a pain because nobody gives specification.
>
> Best wishes
>
> Norbert
> ------------------------------------------------------------------------
> Norbert Preining            preining@{jaist.ac.jp, logic.at, debian.org}
> JAIST, Japan                                 TeX Live&  Debian Developer
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