sony-vaio-z-series team mailing list archive

[Anestis iliadis <latebeat@xxxxxxxxx>]

Hey guys,

I'm so confused though with all the different kernel switches suggested 
by various blog posts, mailing list posts and all the variations in 
between.
So far I haven't been able to reach to a definite conclusion what's 
necessary and what's not.

Can someone provide accurate information as to which switches are need 
and why? I've seen so many versions of it that I'm a bit confused as to 
which one I need and why.
So far I've seen:
-nomodeset (this is mostly suggested with 2.6.x kernels. So far with 
3.2.x I don't think it's needed any more but I would love to hear your 
opinion)
-acpi_osi= (no quotes)
-acpi_osi="" (with quotes)
-acpi_osi=\"!Windows 2006\" (see: 
http://0xc0dedbad.com/blog/category/linuxonvaioz)
- acpi_osi=\\\"!Windows 2006\\\"" (see: 
https://lists.launchpad.net/sony-vaio-z-series/msg00636.html 
<https://lists.launchpad.net/sony-vaio-z-series/msg00636.html>)
-rdblacklist=nouveau
-vmalloc=192M (that's new to me.. see: 
http://www.hayr.at/index.php?option=com_content&view=article&id=85%3Alinux-fedora-on-vaio-z-vpcz13c5e&catid=12%3Alinux&lang=en&Itemid=25)


Also, Tommas, if I may ask, would you mind collaborating a bit more on 
the halts and what you were saying? When do we need the halts and how 
can I do that?

Thanks,

Anestis

On 10/03/2012 05:19 AM, mauro.bis@xxxxxxxxx wrote:
> Hi Tommaso,
> I have a vgn z690 that should be quite similar to yours.
> My laptop also activates both cards (intel and nvidia) by default. In 
> order to avoid this I added the following string to the kernel 
> parameters in lilo.conf:
>
> acpi_osi=\"!Windows 2006\"
>
> The backslashes are required because the double quotes are part of the 
> parameter string.
> Try adding this line to the kernel parameters in your boot loader 
> configuration file.
> In order to verify if it works you have to:
>
> - halt the system and boot ensuring that this parameter is passed to 
> the kernel (you can verify it with cat /proc/cmdline)
> - halt the system again
> - now, with the power off, switch the physical switch below the screen 
> to either speed or stamina
> - power the system on
>
> Please note that in this case system halts are needed, not reboots.
> At this point the correct speed/stamina led should be switched on and 
> only the corresponding cards should be active.
>
> I found this procedure some years ago at this url 
> https://launchpad.net/~sony-vaio-z-series 
> <https://launchpad.net/%7Esony-vaio-z-series>.
>
> One more thing. I read somewhere (i can't find the link now) that 
> updating the bios to the version required by win7 may prevent the 
> procedure above to work, at least for my vaio model (for which the 
> latest bios is R4044M3). I'm not sure about yours but you updated your 
> bios so take this possibility into account.
>
> Hope this helps.
>
> Best,
> Mauro
>
> On Wed, Oct 3, 2012 at 7:56 AM, Flavio <fbcyborg@xxxxxxxxx 
> <mailto:fbcyborg@xxxxxxxxx>> wrote:
>
>     On 3 October 2012 00:41, tommaso capelli <thetom199@xxxxxxxxx
>     <mailto:thetom199@xxxxxxxxx>> wrote:
>     > Hi,
>     > I'm finally writing you from my new mint 64 installation. The
>     only big
>     > problem is that both cards are recognized by the system. The
>     stamina/speed
>     > switch seems not working. I think that the problem is the bios,
>     but i'm not
>     > so sure about that.
>     > Does anyone knows how can I fix this?
>     > Thank you in advance
>     Hello,
>
>     I had a Sony SZ330P having the same your stamina/speed switch and as
>     far as I can say, if you switch on speed, it doesn't recognize the
>     integrated
>     grafic card and vice versa. Only one graphic card should be
>     recognized.
>     So it sounds very strange to me that both are recognized at the
>     same time.
>
>     Anyway, this is still not sufficient, because you have to configure an
>     initscript
>     that switches opengl to (e.g.) nvidia to xf86 depending on what
>     the selected
>     mode is.
>
>     Cheers,
>
>     Flavio
>
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