I have Asus N551JM too, and you shoud try this:
1. put in bash
$ sudo apt-get install alsa-tools-gui
2. open a hdajackretask with command $ hdajackretask
You will see a small window, select a codec Realtek ALC668 and check option
"show unconnected pins" check "overwrite" in pin id: 0x1a and select internal
speaker then "Apply now" and "install boot overwrite".
3. Reboot the system
4. In sound setting select profile that you want and you will hear a subwoofer
This result work for me.
** Package changed: alsa-driver (Ubuntu) => alsa-tools (Ubuntu)
** Changed in: alsa-tools (Ubuntu)
Assignee: (unassigned) => Jan Palak (jpalak)
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https://bugs.launchpad.net/bugs/1405691
Title:
No sound from subwoofer on Asus N551JM
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