[alsa-devel] No sound with nVidia Corporation MCP79 High Definition Audio (rev b1) (Macbook Pro 5, 5)

Andreas Nüßlein nutz at unfoog.de
Thu Jul 2 19:37:43 CEST 2009

On Thursday 02 July 2009 15:15:34 you wrote:
> At Thu, 2 Jul 2009 12:54:47 +0200,
> Andreas Nüßlein wrote:
> > but i can't get any sound eventhough all channels are unmuted and turned
> > up to 100.
> >
> > i also aplay -Dfoo file.wav again, where foo =
> > default,front,surround40,.... , but i always get: aplay: main:608: audio
> > open error: Invalid argument
> The error is strange.  Did you build with --enable-dynamic-minors
> configure option?
> Otherwise the codec registers look OK.

hmmm.. well whenever i really build this manually ( ./configure --with-
cards=hda-intel && make && sudo make install)  i can't load the modules, 
because i get:
[ 1526.091642] snd: Unknown symbol unregister_sound_special                                                          
[ 1526.092374] snd: Unknown symbol register_sound_special_device  

however when i edited the gentoo-ebuild to use your snapshot, i'm able to 
compile and load the driver but get said error. 

do you have an idea why i'm getting this Unknown symbol -error?  should i 
build alsa-headers myself as well? right now that's built via gentoo-ebuild.

i'll try to copy the ebuild instructions, step by step until i get it running 

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