Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I bought a HP ENVY 6-1060ss, it has 2 front speakers and a built-in subwoofer. I can't get the subwoofer to work. I have looked around for answers, and found quite a lot, but still, nothing works.

I have already tried (from already answered questions):

  • Edited /etc/pulse/daemon.conf setting enable-lfe-remixing: from no to yes, and the channels number from 2 to 3.

  • Edited /etc/modprobe.d/alsa-base.conf, adding options snd-hda-intel model=hp-zephyr and options snd-hda-intel model=ref.

Any other thoughts?

share|improve this question
Just a note: My HP dv7 also has a sub that stopped working several releases ago (it worked pre 10.04). Interested to see an answer on this one. – RobotHumans Oct 25 '12 at 13:50
You may find the answer for your problem in [this][1] thread [1]:… – Maduka Jayalath Nov 17 '12 at 7:51
Someone got an answer for this, please check (…) – Maduka Jayalath Nov 17 '12 at 7:57
up vote 0 down vote accepted

This worked for me on my HP Envy w/ Beats Audio: Ubuntu now recognizes and uses the center-channel (so-called) subwoofer.


share|improve this answer
Welcome to Ask Ubuntu! Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. – Peachy Nov 19 '12 at 13:33
Could you clarify the exact steps you took to get this working? I've got exactly the same problem at the moment and would love to get the subwoofer working. – Jeremy Jan 5 '13 at 14:20

Did you also try?

 sudo gedit /usr/share/pulseaudio/alsa-mixer/profile-sets/extra-hdmi.conf

-- add the lines below:

[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

Reboot. You should have an extra mode in your "hardware" menu of the "sound" menu named "Analog surround 2.1"

can you do an lspci and tell me which sound card is your PC using?

share|improve this answer
Thanks for your answer. I did what you told me, but didn't get any new hardware profiles... still, it bugs me that the ones named in the extra-hdmi.conf aren't exactly the ones shown under hardware profiles! lspci returned: 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04) 01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device 5289 (rev 01) – user100787 Nov 15 '12 at 23:05

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.