I have the following integrated sound card installed on HP ProBook 4710s:
$ lspcidrake -v | fgrep -i AUDIO
snd_hda_intel : Intel Corporation|82801I (ICH9 Family) HD Audio Controller (vendor:8086 device:293e subv:103c subd:3076) (rev: 03)
Got no issues with audio playback, but sound recording is not working for some reason (tried SoX "rec" console tool and test audio call via Skype) - no errors shown but the resulting recorded sound file does not have any sound.
First I thought it could be a hardware issue, but I've tried to run a Live CD of another popular linux distro and the recording went fine out of the box.
I would appreciate if you guys could help me in resolving this issue.