I believe that I'm having the same problem as Serpentus. I've got no sound except through headphones. I've gone through and followed all the instructions from http://ubuntuforums.org/showthread.php?t=205449. I've had this issue ever since I got this computer and installed 7.04 on it. At one point through fiddling, I managed to do a complete swap and then only had sound from my speakers; plugging in my headphones did not mute the speakers or produce sound. I needed headphone-only sound which I got by doing a complete reinstall when upgrading to 8.04.
attached are the logs from the Debugging Sound Problems wiki. --Snowball2050 ** Attachment added: "soundlogs.tar.gz" http://launchpadlibrarian.net/14649406/soundlogs.tar.gz -- Sound Card Detected, but only headphone sound https://bugs.launchpad.net/bugs/220006 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