Public bug reported:
Hi, I have an Intel DP35DP motherboard
(http://www.intel.com/products/motherboard/dp35dp/index.htm) with
integrated audio (HDA with sigmatel STAC9271D codec) as you can see in
this link for the motherboard's specification page. Ubuntu loads the
snd_hda_intel driver for this.
I can record from microphone or line-in normally, but I can't hear the
sound from any of these inputs at the same time (loopback). I've tried
all combinations possible using alsamixer and gnome volume control items
(including the ones disabled by default). No way.
While this may appear to be not important, it's a big problem because I
have a TV capture card which doesn't have audio decoding in the chip
(and even if it had, it would'nt be my preferred way to use it because
TVTime doesn't support this directly, and also I would make the audio
output busy). I can hear the sound if I redirect from input to output
using some program like sox (or even the cat command - something like
cat /dev/dsp > /dev/audio).
I'm ready to answer any additional questions which would help to solve
this problem.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
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snd_hda_intel @ Intel DP35DP mb.: Input from Line-in / Mic can't be listen in
the output
https://bugs.launchpad.net/bugs/151634
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