I experience the same problem with the current daily build (20100709) of Maverick on the same notebook. It comes with current ALSA version 1.0.23. Lucid with ALSA backports package is affected too.
The bug has been reported upstream at https://bugtrack.alsa-project.org /alsa-bug/view.php?id=4862 but the report hasn't been changed since then. ** Bug watch added: ALSA Bug Tracker #4862 https://bugtrack.alsa-project.org/alsa-bug/view.php?id=4862 -- Null pointer reference in alc_build_controls+0x159/0x4e0 [snd_hda_codec_realtek] https://bugs.launchpad.net/bugs/505469 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