I can confirm this exact same behavior. It occurred on my H600, in both Ubuntu 18.10 and 19.04. Makes for very strange volume effects, especially to those who don't know to investigate with pavucontrol and alsamixer.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1843819 Title: Volume scaling is incorrect for Logitech H600 (046d:0a29): alsamixer @ 0% where pulse volume @ 50% Status in pulseaudio package in Ubuntu: Incomplete Bug description: When the volume is set to around 50% in PulseAudio (using the Ubuntu Sound preferences screen but cross-checked by simply viewing with pavucontrol) the alsamixer volume is set to 0%. I can see the volume rise quickly as the volume is raised past 50% in the Sound preferences screen. This occurs at least for the Logitech H600 USB device: Bus 001 Device 011: ID 046d:0a29 Logitech, Inc. H600 [Wireless Headset] The other audio devices behave "correctly" where 0% is silent and 100% is maximum volume. This confused me because the volume was set to 50% (I'll frequently reset headset volume to 30-50% to protect my ears) and thought audio was broken at first because I wasn't getting any sound at all. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1843819/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
