I may be experiencing a different bug than everyone here ... but my problem was solved by a comment in bug 275392.
At a terminal, run: alsamixer -Dhw In my case, the PCM level was set to 0%. I used the right arrow key to highlight PCM, used the up arrow key to raise the level to 100%, and then pressed Esc. This solved my problem. -- Static sound on Left Channel with hda-intel STAC 9221 A1 https://bugs.launchpad.net/bugs/266927 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