Public bug reported: Upon boot, the EMU20K2's PCM input channel is enabled (unmuted), but it shows as disabled (muted) in alsamixer. One has to enable it and disable it in alsamixer in order to ensure sound does not "leak" out.
This is unaffected by alsactl store/restore - even if the asound.state file includes information explicitly turning the PCM input off, alsactl restore fails to automatically fix the issue. One must manually go in and turn PCM input on, then off, to ensure it's really off. This has been the case for a few Ubuntu releases now. I'm reporting it precisely because it seems it's not been reported (or at least, not getting attention). ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: kernel-sound ** Attachment added: "Alsa stored state. Even using this state will not cause the EMU20K2 chip to turn off its PCM input automatically." https://bugs.launchpad.net/bugs/1133065/+attachment/3547006/+files/asound.state ** Project changed: launchpad => alsa-driver (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1133065 Title: Default mixer settings for EMU20K2 enable PCM Input on boot while showing it as disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1133065/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs