Arch Linux

Emeryx

Member

Registered: 2024-06-22

Posts: 1

USB DAC detected, No physical output

I'm very new to Linux yet not to programming and so far I've managed to solve many things alone yet I've been stuck on this for a few days, Tried everything there is to offer online and still haven't got it solved.

I own a FiiO BTR5 which I use to run my high impedance headphones. It runs completely fine on my Windows 10 that's located in an other disk.

My pavucontrol shows the device as FiiO BTR5 Analog Stereo

Audio output works completely fine with my speakers

I've tried to uncomment

    default.clock.rate          = 48000
    default.clock.allowed-rates = [ 48000 ]

from

/etc/pipewire/pipewire.conf

Additionally, My

/etc/pulse/

directory lacked a daemon.conf, So I manually added one with the following content:

 default-sample-rate = 192000
 alternate-sample-rate = 48000

As per other guides suggested.

I also tried switching back and forth from USB 1.0 and USB 2.0, Reconnecting the BTR5 every time
I've also tried to turn on car mode

I also tried to use speaker test on the correct device ID, No output

My BTR5 is set as default

I also updated my Nvidia drivers as someone said it can also help. I have the NVIDIA GeForce RTX 2070 SUPER with the NVIDIA driver version being 550.90.07

Unsure if this is related but I am using hyprland and I'm using someone's hyprdots, They seem to be popular and they are very good at what they do: https://github.com/prasanthrangan/hyprdots

Here are some additional command outputs

❯ aplay -IL

null
    Discard all samples (playback) or generate zero samples (capture)
lavrate
    Rate Converter Plugin Using Libav/FFmpeg Library
samplerate
    Rate Converter Plugin Using Samplerate Library
speexrate
    Rate Converter Plugin Using Speex Resampler
jack
    JACK Audio Connection Kit
oss
    Open Sound System
pipewire
    PipeWire Sound Server
pulse
    PulseAudio Sound Server
speex
    Plugin using Speex DSP (resample, agc, denoise, echo, dereverb)
upmix
    Plugin for channel upmix (4,6,8)
vdownmix
    Plugin for channel downmix (stereo) with a simple spacialization
default
    Default ALSA Output (currently PipeWire Media Server)
sysdefault:CARD=PCH
    HDA Intel PCH, ALCS1200A Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALCS1200A Analog
    Front output / input
surround21:CARD=PCH,DEV=0
    HDA Intel PCH, ALCS1200A Analog
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALCS1200A Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALCS1200A Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALCS1200A Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALCS1200A Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALCS1200A Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=PCH,DEV=0
    HDA Intel PCH, ALCS1200A Digital
    IEC958 (S/PDIF) Digital Audio Output
usbstream:CARD=PCH
    HDA Intel PCH
    USB Stream Output
hdmi:CARD=NVidia,DEV=0
    HDA NVidia, VG259QM
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=1
    HDA NVidia, HDMI 1
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=2
    HDA NVidia, HDMI 2
    HDMI Audio Output
hdmi:CARD=NVidia,DEV=3
    HDA NVidia, HDMI 3
    HDMI Audio Output
usbstream:CARD=NVidia
    HDA NVidia
    USB Stream Output
usbstream:CARD=Snowball
    Blue Snowball
    USB Stream Output
usbstream:CARD=Webcam
    C922 Pro Stream Webcam
    USB Stream Output
sysdefault:CARD=BTR5
    FiiO BTR5, USB Audio
    Default Audio Device
front:CARD=BTR5,DEV=0
    FiiO BTR5, USB Audio
    Front output / input
surround21:CARD=BTR5,DEV=0
    FiiO BTR5, USB Audio
    2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=BTR5,DEV=0
    FiiO BTR5, USB Audio
    4.0 Surround output to Front and Rear speakers
surround41:CARD=BTR5,DEV=0
    FiiO BTR5, USB Audio
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=BTR5,DEV=0
    FiiO BTR5, USB Audio
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=BTR5,DEV=0
    FiiO BTR5, USB Audio
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=BTR5,DEV=0
    FiiO BTR5, USB Audio
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
iec958:CARD=BTR5,DEV=0
    FiiO BTR5, USB Audio
    IEC958 (S/PDIF) Digital Audio Output
usbstream:CARD=BTR5
    FiiO BTR5
    USB Stream Output

❯ lsusb

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 05ac:024f Apple, Inc. Aluminium Keyboard (ANSI)
Bus 001 Device 003: ID 0d8c:0005 C-Media Electronics, Inc. Blue Snowball
Bus 001 Device 004: ID 046d:085c Logitech, Inc. C922 Pro Stream Webcam
Bus 001 Device 006: ID 03f0:028e HP, Inc HyperX Pulsefire Haste Wireless
Bus 001 Device 008: ID 2972:0047 FiiO Electronics Technology FiiO BTR5
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

❯ systemctl --user status pipewire-pulse

● pipewire-pulse.service - PipeWire PulseAudio
     Loaded: loaded (/u
sr/lib/systemd/user/pipewire-pulse.service; enabled; preset: ena
bled)
     Active: active (running) since Sat 2024-06-22 13:46:48 IDT; 59min ago
 Invocation: 05ae9f03898a4072a1be31aeb10fe7fd
TriggeredBy: ● pipewire-pulse.socket
   Main PID: 633 (pipewire-pulse)
      Tasks: 3 (limit: 19074)
     Memory: 40.6M (peak: 42.2M)
        CPU: 12.400s
     CGroup: /user.slice/user-1000.slice/user@1000.service/session.slice/pipewire-pulse
.service
             └─633 /usr/bin/pipewire-pulse

Jun 22 13:46:48 archlinux systemd[620]: Started PipeWire PulseAudio.

That's the only issue I'm having with Linux and god I need to solve it. I love the experience the OS offers so far

If additional information is needed I am active and will deliver (Although specifically

pacmd

commands are not showing up for me for some reason)

ua4000

Member

Registered: 2015-10-14

Posts: 554

Re: USB DAC detected, No physical output

hyprdots - sorry no support from me here, I'm out.

But some hints:
- don't change the above mentioned config files - the device should work with default. Only when it works and you want to enable to 192KHz start poking here.
- NVIDIA probably completely unrelated.
- test with a Ubuntu LiveCD/DVD/USB
- install arch via official way, then you have a better chance for help here.

YanYuKevin

Member

Registered: 2025-12-24

Posts: 1

Re: USB DAC detected, No physical output

I am using machine translation, please forgive any errors.
I have also encountered the same issue on my Fosi Q6 DAC, but unfortunately, I am a beginner as well. If you find a solution, could you kindly let me know? Thank you very much.