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

[Takashi Iwai]

At Thu, 2 Jul 2009 19:37:43 +0200,
Andreas Nüßlein wrote:
> 
> 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  

You should use
	./configure --with-debug=full --enable-dynamic-minors \
		--with-moddir=updates

> 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 have no idea a about gentoo.


Takashi