Volume jump to 100% after USB DAC is reset
I have a DragonFly Cobalt USB DAC.
Every time I unplug it then replug it in again, the volume jumps to 100% from where it was previously, then jumps back to where it was previously on the first move of the fader in pavucontrol.
Sometimes it jumps to 100% after moving the fader or pressing a media volume key for the first time then where it was previously directly after on continued movement of the mouse-dragged fader.
What's the best way to log? I tried killall -9 pipewire-pulse && PIPEWIRE_DEBUG=5 pipewire-pulse 2>owie-pw-pulse.log
but Firefox doesn't show up in pavucontrol afterward.
journalctl
gives
Sep 22 04:53:55 red kernel: usb 1-2: USB disconnect, device number 19
Sep 22 04:53:55 red pipewire[1878]: spa.alsa: front:2: snd_pcm_status error: No such device
Sep 22 04:53:55 red pipewire[1878]: spa.alsa: front:2: snd_pcm_recover error: No such device
Sep 22 04:53:55 red pipewire[1878]: spa.alsa: front:2: snd_pcm_drop No such device
Sep 22 04:53:55 red pipewire[1878]: spa.alsa: front:2: close failed: No such device
Sep 22 04:53:55 red wireplumber[1879]: <WpSiStandardLink:0x5627bbd905c0> 2 of 2 PipeWire links failed to activate
Sep 22 04:53:55 red wireplumber[1879]: <WpSiStandardLink:0x5627bbd894b0> 2 of 2 PipeWire links failed to activate
Sep 22 04:53:55 red wireplumber[1879]: <WpSiStandardLink:0x5627bbfb4b60> 2 of 2 PipeWire links failed to activate
Sep 22 04:53:55 red wireplumber[1879]: <WpSiStandardLink:0x5627bbef4840> 2 of 2 PipeWire links failed to activate
Sep 22 04:53:56 red wireplumber[1879]: <WpSiStandardLink:0x5627bbef1dd0> 2 of 2 PipeWire links failed to activate
Sep 22 04:53:56 red wireplumber[1879]: <WpSiStandardLink:0x5627bc03dbc0> 2 of 2 PipeWire links failed to activate
Sep 22 04:53:56 red wireplumber[1879]: <WpSiAudioAdapter:0x5627bbf42ca0> tried to link on last rescan, not retrying
Sep 22 04:54:00 red kernel: usb 1-2: new full-speed USB device number 20 using xhci_hcd
Sep 22 04:54:00 red kernel: usb 1-2: New USB device found, idVendor=21b4, idProduct=0085, bcdDevice= 1.10
Sep 22 04:54:00 red kernel: usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Sep 22 04:54:00 red kernel: usb 1-2: Product: AudioQuest DragonFly Cobalt v1.0
Sep 22 04:54:00 red kernel: usb 1-2: Manufacturer: AudioQuest
Sep 22 04:54:00 red kernel: usb 1-2: SerialNumber: AQDFCB0101032045
Sep 22 04:54:05 red kernel: hid-generic 0003:21B4:0085.0009: hiddev97,hidraw2: USB HID v1.11 Device [AudioQuest AudioQuest DragonFly Cobalt v1.0] on usb-0000:00:14.0-2/input2
Sep 22 04:54:05 red mtp-probe[16535]: checking bus 1, device 20: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2"
Sep 22 04:54:05 red mtp-probe[16535]: bus: 1, device: 20 was not an MTP device
Sep 22 04:54:06 red mtp-probe[16567]: checking bus 1, device 20: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2"
Sep 22 04:54:06 red mtp-probe[16567]: bus: 1, device: 20 was not an MTP device
Sep 22 04:54:06 red wireplumber[1879]: <WpSiAudioAdapter:0x5627bbf42ca0> tried to link on last rescan, not retrying
Sep 22 04:54:06 red wireplumber[1879]: <WpSiAudioAdapter:0x5627bbf42ca0> tried to link on last rescan, not retrying
Sep 22 04:54:06 red wireplumber[1879]: <WpSiAudioAdapter:0x5627bbf42ca0> tried to link on last rescan, not retrying
Sep 22 04:54:06 red wireplumber[1879]: <WpSiAudioAdapter:0x5627bbf42ca0> tried to link on last rescan, not retrying
On that occasion the volume only jumped to 100% after moving the pavucontrol fader, and it happened after the last log line.