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Message #00022
Re: First step in switching graphics cards: Running Stamina mode only
Hi Julius,
in the meantime I also started Nvidia tests and indeed it doesn't work. In
speed mode the card is enabled, the speed LED is correctly on, but according
to the X log the output doesn't seem to be working.
AFAIK there is a switch on the mainboard, routing either the output of the
Intel card or the Nvidida card to VGA output. This switch seems to be the
problem and we don't have an idea about the right now.
Am So Februar 15 2009 23:10:54 schrieb Julius Donnert:
> Hi Eva,
>
> thanks for the upload, that sounds exciting. Im looking forward to try
> it out.
> The line you describe is when i got the permission denied. I will try
> again, when i have 0.5 installed. btw we should try to get those changes
> in the main kernel at some point. Did you talk to the sony-laptop
> maintainer, or what is the plan ?
Currently we Matze is mostly testing and creating some infrastructure. It is
not really cleaned up so a kernel maintainer probably would need to help here.
Also we are not sure the driver doesn't cause trouble on other sony models.
Cheers,
Eva
>
> Ciao
>
> Julius
>
> Eva Brucherseifer schrieb:
> > Hello Julius,
> >
> > Am Sat February 14 2009 23:59:10 schrieben Sie:
> >> Hi Eva, Hi all
> >>
> >> i tested your sony-laptop.c and the stamina mode is fine as far as i can
> >> see. It should extend battery life considerably, if I understand
> >> correctly. I tried changing the code to switch the nvidia card on, but
> >> it didn't work and im not a kernel hacker ...
> >
> > I just uploaded a new version 0.5 which allows you to switch the card
> > through sysfs without the need of kernel hacking or loading new modules.
> >
> >> Also i wasnt able to switch on the 3G modem. I got a permission denied
> >> error, even though i was root.
> >> any idea ?
> >
> > Very strange... when did you get the permissions denied? When calling
> > this line?
> > echo 1 > /sys/devices/platform/sony-laptop/snc_wwanpower
> >
> > Cheers,
> > Eva
> >
> >> Julius
> >>
> >> Eva Brucherseifer schrieb:
> >>> Update:
> >>> I uploaded a source tar ball so that compilation & installation is
> >>> easier. See the web page and the README for details.
> >>>
> >>> Any progress with the Nvidia tests?
> >>>
> >>> Cheers,
> >>> Eva
> >>>
> >>> Am Sa Februar 14 2009 01:13:59 schrieb Eva Brucherseifer:
> >>>> Hi,
> >>>>
> >>>> I just uploaded a new version of sony_laptop.c to
> >>>> http://www.basyskom.org/~eva/log_installation_vaio_z21vnx.html
> >>>> It allows to run linux in full Stamina mode without Windows XP mode
> >>>> :-)
> >>>>
> >>>> Using this version of sony_laptop resets also all possible settings
> >>>> from a Windows XP reboot, thus it won't be able to run linux in speed
> >>>> mode with this version. Certainly replacing the module by its original
> >>>> version brings back the original behaviour.
> >>>>
> >>>> Unfortunately the PCI system doesn't really recognize the change and
> >>>> still shows the 00:02.0 Intel graphics controller and the 01:00.0
> >>>> Nvidia graphics controller, but not the 00:02.1 Intel card. So if you
> >>>> use scripts to switch your X.org config, this will break.
> >>>>
> >>>> We haven't tested the same with Speed mode, as my laptop hasn't the
> >>>> Nvidia card configured and we cannot say wether the Nvidia card is
> >>>> fully initialised. If you are brave, you might give it a try and let
> >>>> us know... For that you need to change line 2933 from sony_dgpu_off()
> >>>> to sony_dgpu_on() and also the led switch two lines above.
> >>>>
> >>>> For more info see also http://thinkfat.blogspot.com/
> >>>>
> >>>> Have fun,
> >>>> Eva
--
Eva Brucherseifer
Managing Director
basysKom GmbH
Robert-Bosch-Str. 7 | 64293 Darmstadt | Germany
Tel: +49 6151 3969-961 | Fax: -736 | Mobile: +49 170 5533642
eva.brucherseifer@xxxxxxxxxxx | www.basyskom.de
Handelsregister: Darmstadt HRB 9352
Geschaeftsfuehrung: Eva Brucherseifer
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