I have a similar issue with Dell Inspiron 1090 (Duo). I am not sure if this is exactly the same bug, but the built-in speaker just stops working after a while (usually a few seconds after system startup or wakeup) and remains silent until the next reboot or suspend/wakeup. The headphone jack remains functioning though. When I plug the headphones in and out, the sound volume and speaker mute settings change accordingly in alsamixer, which I presume shows that the two states are correctly detected by alsa, however, nothing is heard from the built-in speaker when the headphone is unplugged. Sound test in Ubuntu sound settings aslo confirms this.
The issue started after an upgrade in ubuntu 12.10 and now I have upgraded to ubuntu 13.10 but the problem is still there. Will this get fixed for Inpiron Duo as well? Should I start a new bug report thread? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1195377 Title: [Inspiron 1420, SigmaTel STAC9228, Speaker, Internal] fails after a while or plug in and out headphones To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1195377/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs