[alsa-devel] no analog playback device for HDA STAC9221 inside VirtualBox 4.2.14

[Raymond Yau]

> > > >
> > > > HDA STAC9221 audio work for (64bit) Fedora 16, Ubuntu 11.10 and
> Opensuse
> > > > 11.4 Live CD inside virtualbox 4.2.14
> > > >
> > > > no sound for this emulated HDA sound card since Ubuntu 12.04 Live CD
> > > >
> > > > No analog playback device  for Saucy or Fedora 19 Live CD
> > >
> > > It looks strange that VirtualBox sets up the pins for 5.1 speaker +
> > > headphone.  Is this really the wanted setup as a virtual machine?
> > >
> > > Some truncated control names found in alsa-info.sh output should have
> > > been fixed in sound git tree now.
> > >
> > >
> > it work with opensuse 11.4 for both HDA and AC97 , but no sound card
> > modules loaded in opensuse 12.3 Live CD
>
> Well, it doesn't clarify whether the culprit is VirtualBox's change or
> HD-audio driver's change at all...  How did 11.4 work?  Did it work
> with 5.1 + headphone setup in VME?
>

it only support stereo in 11.4

analog playback device still appear in Ubuntu 13.04 (before sigmtel use
auto generic parser)

https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/patch_sigmatel.c?id=0a4278464eba4bf98c0d6304c62a1116553125d3

https://www.virtualbox.org/browser/vbox/trunk/src/VBox/Devices/Audio/DevIchHdaCodec.cpp

https://www.virtualbox.org/browser/vbox/trunk/src/VBox/Devices/Audio/DevIchHda.cpp