sony-vaio-z-series team mailing list archive

[Philipp Blanke <philipp.blanke@xxxxxxxxxxxxxx>]

Hi Norbert,
hi list people,

I included your improvement to the tutorial @
http://www.welfenlab.de/fileadmin/download/Installation-sony-vaio.pdf

Thanks for the hint.
Philipp

2009/8/28 Norbert Preining <preining@xxxxxxxx>

> Hi all,
>
> I have experienced regular breakage of OpenGL programs due to the
> following reason: Following the tutorial on switching graphics cards
> we have
>        /usr/lib/libGL.so.1.INTEL       (intel)
>        /usr/lib/libGL.so.185.NN.MM     (nvidia)
> The current code from the tutorial (switch-graphics init file) does:
>        ln -sf /usr/lib/libGL.so.1.INTEL /usr/lib/libGL.so.1
> in the Intel case.
>
> Now the problem is that 185 > 1, so calling ldconfig will revert that
> change. So after running ldconfig we have
>        /usr/lib/libGL.so.1 -> libGL.so.185.NN.MM
> although running Intel card.
>
> I have changed the code as follows: In both cases we create a link
>        /usr/lib/libGL.so.100000 -> libGL.so.1.INTEL
> or
>        /usr/lib/libGL.so.100000 -> libGL.so.185.NN.MM
> and then a link
>        /usr/lib/libGL.so.1      -> libGL.so.10000
>
> That way calling ldconfig will not destroy the libGL.so.1 link
> (unless nVidia comes out with a version higher than 10000 ;-)
>
> I attach the script I am using ATM.
>
>
> Ah, in additon I have added -q to the grep option in the beginning
> so that the output is supressed and only the return code given.
>
> Best wishes
>
> Norbert
>
>
> -------------------------------------------------------------------------------
> Dr. Norbert Preining <preining@xxxxxxxx>        Vienna University of
> Technology
> Debian Developer <preining@xxxxxxxxxx>                         Debian TeX
> Group
> gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5
> B094
>
> -------------------------------------------------------------------------------
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-- 
Philipp Blanke
Alte Dorfstr. 19
29690 Schwarmstedt