The last error with /dev/snd/controlC0 is expected. You should not attempt to manipulate /dev/snd/ nodes directly; that's alsa-lib's purpose/functionality.
Can you try an strace of LANG=C alsamixer, please? -- Unable to start alsamixer https://bugs.launchpad.net/bugs/613248 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
