Craig Keogh above is spot-on! I had the same problem, although not in Ubuntu, but openSUSE!! My audio was functioning correctly, but at a very low level / volume.
I used the gnome Volume Control's Preferences dialog to select the Front channel and raise to 100%, it was at 50%, which kind of verified the impression I had of my audio. Raising it to 100% restored my audio to normal. In fact, if you go through all the channels in the list, you'll see that many of them are at 50% by default! So, this appears to be something ALSA / GNOME related, not to Ubuntu. -- Low volume, No sound: Intel HDA 82801J (ICH10) https://bugs.launchpad.net/bugs/271519 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs