I'm having a problem with my Ubuntu and my subwoofer. It won't work until I go into sound preferences -> output tab and re-select the device. Two devices are displayed: 1: Internal Audio analog surround 5.1 (this is the one I have to use) 2: HDA NVidia Digital Stera (HDMI)

The problem is that this isn't something I have to do just once after boot. No, I have to do this everytime I want to listen to anything. IE: Whenever Rythmbox changes songs, the new song will not play through the subwoofer. I have to change the prefence on every single song. OR, whenever I watch a video, or open youtube, or do anything. And it's not really just the subwoofer. It's bass in general.

Basically, I can't even listen to music anymore because I always always always always have to re-set the sound preference on every song.

Now, I never had a problem before until I added a bluetooth adapter (dongle?) to my computer. After the drivers installed for that, my sound preferences won't work.

Why won't it just always work?

Please help if you can. Thanks.

  • What is your sound card setup?
    – topless
    Jul 20, 2011 at 1:06
  • I'm using the sound on my motherboard. A Gigabyte P55M-UD4 3 outputs to the sound system which is 5.1 speaker set.
    – kitecraft
    Jul 20, 2011 at 1:24
  • what lspci | grep audio gives?
    – topless
    Jul 20, 2011 at 1:25
  • lspci | grep Audio 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05) 01:00.1 Audio device: nVidia Corporation Device 0e09 (rev a1)
    – kitecraft
    Jul 20, 2011 at 1:27

1 Answer 1


This is just a guess, but in /etc/pulse/daemon.conf set enable-lfe-remixing: no to yes and make sure it is not commented (has no semicolon in front of it). If you made changes, save them and restart your system (or just pulseaudio).

  • That was a very good guess then. I un-commented the line and changed it to yes and it worked. Thank you very much. Cheers
    – kitecraft
    Jul 20, 2011 at 13:14
  • Glad it worked. How about an upvote and marking the question as answered?
    – con-f-use
    Jul 20, 2011 at 16:34
  • < embarrassed > I can't seem to figure out how to mark it as answered. <later> Oh, think I got it but I'm not a member so can't upvote.
    – kitecraft
    Jul 20, 2011 at 22:51

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