@Dmitri, interesting, how did that document leak out on the net? :-)
Anyway, according to the ALC268 datasheet, pin 37 is connected to nid 16h.
Would it be possible for someone with the hardware to do this:
download and install snd-hda-tools from my ppa (ppa:diwic/maverick). Start
hda_analyzer with this command: "sudo hda_analyzer". Then go to "Pin 16h" in
the left pane. You'll find a "Mute" button, try to unmute it. Does that make
the subwoofer work? Please try this both with headphones unplugged and plugged
in. Thanks!
** Changed in: alsa-driver (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/516725
Title:
acer 7720g laptop 3 spkr's 3rd being sub woofer not working
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