Mar 21 12:40:41 hostname kernel: usb 3-2: 1:1: usb_set_interface failed (-110)
Mar 21 12:40:41 hostname kernel: usb 3-2: 1:1: usb_set_interface failed (-71)
Mar 21 12:40:41 hostname kernel: usb 3-2: 1:1: usb_set_interface failed (-19)
Seem no volume control
Card hw:4 'VX2'/'TOPPING VX2 at usb-0000:00:14.0-11, full speed'
Mixer name : 'USB Mixer' Components : 'USB040d:3400'
Controls : 2
Simple ctrls : 1
Simple mixer control 'PCM',0 Capabilities: pswitch pswitch-joined Playback
channels: Mono Mono: Playback [on]
state.VX2 {
control.1 { iface PCM name 'Playback Channel Map' value.0 0 value.1 0 comment
{ access read type INTEGER count 2 range '0 - 36' } }
control.2 { iface MIXER name 'PCM Playback Switch' value true comment { access
'read write' type BOOLEAN count 1 } } }
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https://bugs.launchpad.net/bugs/1560181
Title:
[USB-Audio - VX2, playback] Pulseaudio fails to detect card
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