The same applies to both the M1710 and the M90 (more or less identical machines), (see patch context, they have the model=ref hack too).
See this bug: https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2092 Please modify the patch to add support for them too -- [gutsy] no LFE in hda-intel + sigmatel stac9200 https://bugs.launchpad.net/bugs/119457 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs