https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1402052
seem usb audio devices build the multi volume control in the same way so you should file an up stream pulseaudio bug report for usb audio device have you ask Arun how to revert his patch ? https://bugs.freedesktop.org/enter_bug.cgi?product=PulseAudio Simple mixer control 'Speaker',0 Capabilities: pvolume pswitch pswitch-joined penum Playback channels: Front Left - Front Right - Rear Left - Rear Right - Front Center - Woofer - Side Left - Side Right Limits: Playback 0 - 197 Mono: Front Left: Playback 90 [46%] [-20.06dB] [on] Front Right: Playback 90 [46%] [-20.06dB] [on] Rear Left: Playback 90 [46%] [-20.06dB] [on] Rear Right: Playback 90 [46%] [-20.06dB] [on] Front Center: Playback 90 [46%] [-20.06dB] [on] Woofer: Playback 90 [46%] [-20.06dB] [on] Side Left: Playback 90 [46%] [-20.06dB] [on] Side Right: Playback 90 [46%] [-20.06dB] [on] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1390474 Title: "Volume element PCM has 6 channels. That's too much!" with Terratec PHASE26 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1390474/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
