Hi David, thanks for suggestions. I've just removed "model=generic" line and rebooted the system. Now audio works again.
I think the problem has been fixed with last updates. $ uname -a Linux home 3.0.0-11-generic #18-Ubuntu SMP Tue Sep 13 23:29:47 UTC 2011 i686 i686 i386 GNU/Linux $ apt-cache policy alsa-base alsa-base: Installed: 1.0.24+dfsg-0ubuntu2 Candidate: 1.0.24+dfsg-0ubuntu2 Version table: *** 1.0.24+dfsg-0ubuntu2 0 500 http://it.archive.ubuntu.com/ubuntu/ oneiric/main i386 Packages 100 /var/lib/dpkg/status 1.0.24+dfsg-0ubuntu1 0 500 http://it.archive.ubuntu.com/ubuntu/ natty/main i386 Packages -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/845828 Title: [System Product Name, Realtek ID 887, SPDIF Out, Internal] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/845828/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs