sony-vaio-z-series team mailing list archive

[John Evans <bucksteep@xxxxxxxxx>]

Thank you Rutger,

update-alternatives and ldconfig got my Intel card working again. Nice!

Notes:
- I'm still switching statically, so it takes a full reboot, not just an X
restart.
- I have to do a little xorg.conf housekeeping before switching. (Nvidia
needs a /etc/X11/xorg.conf file that doesn't work with Intel. Intel needs no
xorg.conf file.)

(I just wish I understood update_alternatives and ldconfig better. For now
I'll just have to add them to my "magical incantations" list, alongside
"update-initramfs" :-).

John E.


On Mon, May 2, 2011 at 2:58 PM, Rutger Hendriks <rutgerhendriks@xxxxxxxxx>wrote:

> Justin,
>
> try to run:
> update-alternatives --set gl_conf /usr/lib/mesa/ld.so.conf
> ldconfig
>
> this will switch to the mesa glx drivers. A restart of X should give
> you all you want.
> I have the following script to switch to the correct GLX libraries
> upon boot, in it you can also see the command to switch back to nvidia
> GLX.
>
>
> #!/bin/sh -e
>
> set_alternatives_to_intel()
> {
>        echo "Intel card active."
>        update-alternatives --set gl_conf /usr/lib/mesa/ld.so.conf
>        ldconfig
>        return 0
> }
>
> set_alternatives_to_nvidia()
> {
>        echo "NVidia card active."
>        update-alternatives --set gl_conf /usr/lib/nvidia-current/ld.so.conf
>        ldconfig
>        return 0
> }
>
> modprobe sony-laptop 2>/dev/null
>
> #if [ "$(uname -r)" = "2.6.35-rc6-vaioz" -o "$(uname -r)" =
> "2.6.38-7-generic" ]
> if [ -e /sys/devices/platform/sony-laptop/speed_stamina ]
> then
>        [ "$(cat /sys/devices/platform/sony-laptop/speed_stamina)" =
> "stamina" ] && set_alternatives_to_intel || set_alternatives_to_nvidia
> fi
>
> exit 0
>
>
>
> See my post a few days ago with the 3 attached files. In essence these
> are Adam's scripts, but now using the Ubuntu alternatives system.
>
> Regards,
>
> Rutger
>
> 2011/5/2 John Evans <bucksteep@xxxxxxxxx>:
> > I'm happily running the Nvidia drivers with Natty on my Z12. No BIOS
> hack,
> > no Preining script (yet), just "acpi_osi= " on the boot line (which goes
> > into effect at shutdown).
> > (However, installing the Nvidia drivers [partially] disabled my Intel
> > drivers; so now with the 3-way switch on "stamina," I have to start X
> > manually (xinit), and I don't get any GLX goodness: the xorg log says
> > "Failed to initialize GLX extension - Compatible NVIDIA X driver not
> found".
> > Pretty sure I'll sort this out -- one of these weekends...)
> > John E.
> >
> > On Mon, May 2, 2011 at 1:29 PM, Justin Karneges <justin@xxxxxxxxxxx>
> wrote:
> >>
> >> I didn't, as I've heard some stories about people breaking their system.
> >>  I'm
> >> content with the default setup.
> >>
> >> On Monday, May 02, 2011 10:21:34 AM Travis Reeder wrote:
> >> > Did you install the official nvidia drivers?  I tried that on my first
> >> > attempt and it forced me to reinstall Ubuntu (only after trying to run
> >> > that
> >> > nvidia-xconfig command or whatever it was though).
> >> >
> >> > On Mon, May 2, 2011 at 10:18 AM, Justin Karneges <justin@xxxxxxxxxxx>
> >> > wrote:
> >> > > On Monday, May 02, 2011 09:46:38 AM Travis Reeder wrote:
> >> > > > I did the acpi_osi="" trick, but haven't tried to switch to the
> >> > > > Nvidia
> >> > > > card, I just leave it on Stamina. Do you mean you can just use the
> >> > > > physical switch before booting up and it will work?
> >> > >
> >> > > Yep.  You'll know the trick is working if the LED lights up next to
> >> > > the
> >> > > switch
> >> > > position.
> >>
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