http://git.alsa-project.org/?p=alsa- lib.git;a=commitdiff;h=1af088e39b75a0a0897c7036487b143e983cd423;hp=57b5076c30b3453ee843912c0aeb3df8dbee3f68
it is strange the pulseaudio no longer probe surround40 , 51, and 71 your log have no traces of surround21 too http://git.alsa-project.org/?p=alsa-lib.git;a=blob_plain;f=test/chmap.c;hb=HEAD chmap -D surround40 query chmap -D surround40 get -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1315212 Title: [CA0106 - CA0106, playback] Playback problem - Surround dies, no valid output To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/1315212/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs