I have bought Asus G550JK laptop(G version of N550) and installed Ubuntu 14.04 on it. I'm just a beginner in using Ubuntu, but I managed to make everything work fine except the external SonicMaster subwoofer. There is no 2.1 option in Sound Settings, I think Ubuntu doesn't see the subwoofer. I tried many solutions, but I only managed to enable 2.1 settings with subwoofer, but when I check the sound I can only hear some noises from the laptop, not the subwoofer.
I have added this at the end of the file:
/etc/modprobe.d/alsa-base.conf
options snd-hda-intel model=asus-mode4
but it doesn't change anything.
Also, adding
[Mapping analog-surround-21]
device-strings = surround40:%f
channel-map = front-left,front-right,lfe,lfe
paths-output = analog-output analog-output-speaker
priority = 7
direction = output
to the file:
/usr/share/pulseaudio/alsa-mixer/profile-sets/extra-hdmi.conf
doesn't help.
Of course I changed the line in
/etc/pulse/daemon.conf
to
enable-lfe-remixing = yes
but all in all, it leads to nothing. I managed to enable 2.1 by adding the line:
load-module module-combine channels=3 channel_map=front-left,front-right,lfe
to the file:
/etc/pulse/default.pa
but, as I said, during the subwoofer check in Sound Settings I only heard some noises from the laptop.
Have you got any idea how to get it working? Thanks for any help. :)
