There is possible solution to fix this: "Following this bug report https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2873, I found the DAC Volume which was muted. It's the last one in alsamixer. So i have now sound on T21 with 9.04. But why was this muted during update process?"
See: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/362277?comments=all Please, check if DAC Volume in alsamixer is muted and report here. Maybe we can fix that bug before the final release. ** Bug watch added: ALSA Bug Tracker #2873 https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2873 -- Hp-compaq notebook,no sound in ubuntu 9.04 https://bugs.launchpad.net/bugs/360137 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