Thanks Raymond for looking into this. If I understand correctly, the specification defines that 100% equals 12db, so ALSA is not at fault.
For the range, I can turn down the PCM switch all the way to -34.5db and still have sound. So the range is pretty wide, same for Master. It's just how far PCM can go up without causing distortions (i.e beyond 0db). My problem is that Pulse recognizes the PCM 0db as the "base" level, but with the volume keys it's easy go to 100% - or what Pulse claims is "0db", but is in fact 12db. As a workaround I've disabled Pulse's control over PCM by adding load-module module-udev-detect ignore_dB=1 to /etc/pulse/default.pa Cheers, Alad -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1311525 Title: Can only use half the sound range without overdriving sound To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1311525/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
