Comment 3 for bug 1234252

Joseph, thanks for the answer.
Have just tried latest 3.12 kernel, but the bug is still there :(
I ll try to use hda-analyzer tool from alsa-project just to see what happening when I move the Bass speaker slider in alsamixer. It seems to me, that only right channel' slider of this mixer item works, while left always stays at 0, regarless of slider position.