Audio card disconnects when audio is playing

Support Sound
1

I have a Shure MV7 that has a USB connection that works as a microphone with a 3.5 mm jack for monitoring + hear the computer sound. On windows it works as expected, however on Manjaro every time I play any sound, the device will disappear and then reaper once the sound has stopped. Some times it is detected just as an input device after playing any sound and the option to set it as output will not reaper until pulseaudio -k and disconnecting the device and reconnecting it again.

I would appreciate any help with this!

$ pacmd list-cards
2 card(s) available.
    index: 1
        name: <alsa_card.pci-0000_00_1f.3>
        driver: <module-alsa-card.c>
        owner module: 7
        properties:
                alsa.card = "0"
                alsa.card_name = "HDA Intel PCH"
                alsa.long_card_name = "HDA Intel PCH at 0xdd148000 irq 134"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:1f.3"
                sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
                device.bus = "pci"
                device.vendor.id = "8086"
                device.vendor.name = "Intel Corporation"
                device.product.id = "9d71"
                device.product.name = "Sunrise Point-LP HD Audio (ThinkPad T480)"
                device.form_factor = "internal"
                device.string = "0"
                device.description = "Built-in Audio"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        profiles:
                input:analog-stereo: Analog Stereo Input (priority 65, available: unknown)
                output:analog-stereo: Analog Stereo Output (priority 6500, available: unknown)
                output:analog-stereo+input:analog-stereo: Analog Stereo Duplex (priority 6565, available: unknown)
                output:hdmi-stereo: Digital Stereo (HDMI) Output (priority 5900, available: no)
                output:hdmi-stereo+input:analog-stereo: Digital Stereo (HDMI) Output + Analog Stereo Input (priority 5965, available: no)
                output:hdmi-surround: Digital Surround 5.1 (HDMI) Output (priority 800, available: no)
                output:hdmi-surround+input:analog-stereo: Digital Surround 5.1 (HDMI) Output + Analog Stereo Input (priority 865, available: no)
                output:hdmi-surround71: Digital Surround 7.1 (HDMI) Output (priority 800, available: no)
                output:hdmi-surround71+input:analog-stereo: Digital Surround 7.1 (HDMI) Output + Analog Stereo Input (priority 865, available: no)
                output:hdmi-stereo-extra1: Digital Stereo (HDMI 2) Output (priority 5700, available: no)
                output:hdmi-stereo-extra1+input:analog-stereo: Digital Stereo (HDMI 2) Output + Analog Stereo Input (priority 5765, available: no)
                output:hdmi-surround-extra1: Digital Surround 5.1 (HDMI 2) Output (priority 600, available: no)
                output:hdmi-surround-extra1+input:analog-stereo: Digital Surround 5.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-surround71-extra1: Digital Surround 7.1 (HDMI 2) Output (priority 600, available: no)
                output:hdmi-surround71-extra1+input:analog-stereo: Digital Surround 7.1 (HDMI 2) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-stereo-extra2: Digital Stereo (HDMI 3) Output (priority 5700, available: no)
                output:hdmi-stereo-extra2+input:analog-stereo: Digital Stereo (HDMI 3) Output + Analog Stereo Input (priority 5765, available: no)
                output:hdmi-surround-extra2: Digital Surround 5.1 (HDMI 3) Output (priority 600, available: no)
                output:hdmi-surround-extra2+input:analog-stereo: Digital Surround 5.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-surround71-extra2: Digital Surround 7.1 (HDMI 3) Output (priority 600, available: no)
                output:hdmi-surround71-extra2+input:analog-stereo: Digital Surround 7.1 (HDMI 3) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-stereo-extra3: Digital Stereo (HDMI 4) Output (priority 5700, available: no)
                output:hdmi-stereo-extra3+input:analog-stereo: Digital Stereo (HDMI 4) Output + Analog Stereo Input (priority 5765, available: no)
                output:hdmi-surround-extra3: Digital Surround 5.1 (HDMI 4) Output (priority 600, available: no)
                output:hdmi-surround-extra3+input:analog-stereo: Digital Surround 5.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-surround71-extra3: Digital Surround 7.1 (HDMI 4) Output (priority 600, available: no)
                output:hdmi-surround71-extra3+input:analog-stereo: Digital Surround 7.1 (HDMI 4) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-stereo-extra4: Digital Stereo (HDMI 5) Output (priority 5700, available: no)
                output:hdmi-stereo-extra4+input:analog-stereo: Digital Stereo (HDMI 5) Output + Analog Stereo Input (priority 5765, available: no)
                output:hdmi-surround-extra4: Digital Surround 5.1 (HDMI 5) Output (priority 600, available: no)
                output:hdmi-surround-extra4+input:analog-stereo: Digital Surround 5.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: no)
                output:hdmi-surround71-extra4: Digital Surround 7.1 (HDMI 5) Output (priority 600, available: no)
                output:hdmi-surround71-extra4+input:analog-stereo: Digital Surround 7.1 (HDMI 5) Output + Analog Stereo Input (priority 665, available: no)
                off: Off (priority 0, available: unknown)
        active profile: <output:analog-stereo>
        sinks:
                alsa_output.pci-0000_00_1f.3.analog-stereo/#0: Built-in Audio Analog Stereo
        sources:
                alsa_output.pci-0000_00_1f.3.analog-stereo.monitor/#1: Monitor of Built-in Audio Analog Stereo
        ports:
                analog-input-internal-mic: Internal Microphone (priority 8900, latency offset 0 usec, available: unknown)
                        properties:
                                device.icon_name = "audio-input-microphone"
                analog-input-mic: Microphone (priority 8700, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "audio-input-microphone"
                analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
                        properties:
                                device.icon_name = "audio-speakers"
                analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "audio-headphones"
                hdmi-output-0: HDMI / DisplayPort (priority 5900, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-1: HDMI / DisplayPort 2 (priority 5800, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-2: HDMI / DisplayPort 3 (priority 5700, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-3: HDMI / DisplayPort 4 (priority 5600, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
                hdmi-output-4: HDMI / DisplayPort 5 (priority 5500, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "video-display"
    index: 6
        name: <alsa_card.usb-Shure_Inc_Shure_MV7-00>
        driver: <module-alsa-card.c>
        owner module: 32
        properties:
                alsa.card = "1"
                alsa.card_name = "Shure MV7"
                alsa.long_card_name = "Shure Inc Shure MV7 at usb-0000:00:14.0-2, full speed"
                alsa.driver_name = "snd_usb_audio"
                device.bus_path = "pci-0000:00:14.0-usb-0:2:1.0"
                sysfs.path = "/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/sound/card1"
                udev.id = "usb-Shure_Inc_Shure_MV7-00"
                device.bus = "usb"
                device.vendor.id = "14ed"
                device.vendor.name = "Shure Inc."
                device.product.id = "1012"
                device.product.name = "Shure MV7"
                device.serial = "Shure_Inc_Shure_MV7"
                device.string = "1"
                device.description = "Shure MV7"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-usb"
        profiles:
                input:mono-fallback: Mono Input (priority 1, available: unknown)
                input:multichannel-input: Multichannel Input (priority 1, available: unknown)
                output:stereo-fallback: Stereo Output (priority 5100, available: unknown)
                output:stereo-fallback+input:mono-fallback: Stereo Output + Mono Input (priority 5101, available: unknown)
                output:stereo-fallback+input:multichannel-input: Stereo Output + Multichannel Input (priority 5101, available: unknown)
                output:multichannel-output: Multichannel Output (priority 100, available: unknown)
                output:multichannel-output+input:mono-fallback: Multichannel Output + Mono Input (priority 101, available: unknown)
                output:multichannel-output+input:multichannel-input: Multichannel Duplex (priority 101, available: unknown)
                off: Off (priority 0, available: unknown)
        active profile: <output:stereo-fallback+input:mono-fallback>
        sinks:
                alsa_output.usb-Shure_Inc_Shure_MV7-00.stereo-fallback/#5: Shure MV7 Stereo
        sources:
                alsa_output.usb-Shure_Inc_Shure_MV7-00.stereo-fallback.monitor/#11: Monitor of Shure MV7 Stereo
                alsa_input.usb-Shure_Inc_Shure_MV7-00.mono-fallback/#12: Shure MV7 Mono
        ports:
                analog-input: Analog Input (priority 10000, latency offset 0 usec, available: unknown)
                        properties:

                multichannel-input: Multichannel Input (priority 0, latency offset 0 usec, available: unknown)
                        properties:

                analog-output: Analog Output (priority 9900, latency offset 0 usec, available: unknown)
                        properties:

                multichannel-output: Multichannel Output (priority 0, latency offset 0 usec, available: unknown)
                        properties:

$ inxi -Fazy
System:
  Kernel: 5.9.1-1-MANJARO x86_64 bits: 64 compiler: N/A 
  parameters: BOOT_IMAGE=/boot/vmlinuz-5.9-x86_64 
  root=UUID=fe5232f1-67a3-4b8a-b4bb-1b7c8d85e292 rw quiet apparmor=1 
  security=apparmor udev.log_priority=3 
  Desktop: KDE Plasma 5.19.5 tk: Qt 5.15.1 wm: kwin_x11 dm: SDDM 
  Distro: Manjaro Linux 
Machine:
  Type: Laptop System: LENOVO product: 20L5CTO1WW v: ThinkPad T480 
  serial: <filter> Chassis: type: 10 serial: <filter> 
  Mobo: LENOVO model: 20L5CTO1WW v: SDK0J40709 WIN serial: <filter> 
  UEFI: LENOVO v: N24ET60W (1.35 ) date: 08/10/2020 
Battery:
  ID-1: BAT0 charge: 17.6 Wh condition: 22.2/24.0 Wh (92%) volts: 12.3/11.5 
  model: SMP 01AV421 type: Li-poly serial: <filter> status: Unknown cycles: 76 
  ID-2: BAT1 charge: 54.4 Wh condition: 68.4/71.1 Wh (96%) volts: 12.6/11.2 
  model: LGC 01AV492 type: Li-ion serial: <filter> status: Unknown cycles: 375 
CPU:
  Topology: Quad Core model: Intel Core i7-8550U bits: 64 type: MT MCP 
  arch: Kaby Lake family: 6 model-id: 8E (142) stepping: A (10) microcode: D6 
  L2 cache: 8192 KiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 32012 
  Speed: 700 MHz min/max: 400/4000 MHz Core speeds (MHz): 1: 700 2: 700 3: 700 
  4: 700 5: 700 6: 700 7: 700 8: 700 
  Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
  Type: l1tf 
  mitigation: PTE Inversion; VMX: conditional cache flushes, SMT vulnerable 
  Type: mds mitigation: Clear CPU buffers; SMT vulnerable 
  Type: meltdown mitigation: PTI 
  Type: spec_store_bypass 
  mitigation: Speculative Store Bypass disabled via prctl and seccomp 
  Type: spectre_v1 
  mitigation: usercopy/swapgs barriers and __user pointer sanitization 
  Type: spectre_v2 mitigation: Full generic retpoline, IBPB: conditional, 
  IBRS_FW, STIBP: conditional, RSB filling 
  Type: srbds mitigation: Microcode 
  Type: tsx_async_abort status: Not affected 
Graphics:
  Device-1: Intel UHD Graphics 620 vendor: Lenovo ThinkPad T480 driver: i915 
  v: kernel bus ID: 00:02.0 chip ID: 8086:5917 
  Device-2: NVIDIA GP108M [GeForce MX150] vendor: Lenovo ThinkPad T480 
  driver: N/A alternate: nouveau bus ID: 01:00.0 chip ID: 10de:1d10 
  Device-3: IMC Networks Integrated Camera type: USB driver: uvcvideo 
  bus ID: 1-8:5 chip ID: 13d3:56a6 serial: <filter> 
  Display: x11 server: X.Org 1.20.9 compositor: kwin_x11 driver: modesetting 
  alternate: fbdev,intel,vesa display ID: :0 screens: 1 
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2") 
  s-diag: 582mm (22.9") 
  Monitor-1: eDP-1 res: 1920x1080 dpi: 158 size: 309x174mm (12.2x6.9") 
  diag: 355mm (14") 
  OpenGL: renderer: Mesa Intel UHD Graphics 620 (KBL GT2) v: 4.6 Mesa 20.1.8 
  direct render: Yes 
Audio:
  Device-1: Intel Sunrise Point-LP HD Audio vendor: Lenovo ThinkPad T480 
  driver: snd_hda_intel v: kernel alternate: snd_soc_skl bus ID: 00:1f.3 
  chip ID: 8086:9d71 
  Device-2: Shure Shure MV7 type: USB driver: hid-generic,snd-usb-audio,usbhid 
  bus ID: 1-2:11 chip ID: 14ed:1012 
  Sound Server: ALSA v: k5.9.1-1-MANJARO 
Network:
  Device-1: Intel Ethernet I219-V vendor: Lenovo ThinkPad T480 driver: e1000e 
  v: kernel port: efa0 bus ID: 00:1f.6 chip ID: 8086:15d8 
  IF: enp0s31f6 state: down mac: <filter> 
  Device-2: Intel Wireless 8265 / 8275 driver: iwlwifi v: kernel port: d000 
  bus ID: 03:00.0 chip ID: 8086:24fd 
  IF: wlp3s0 state: up mac: <filter> 
Drives:
  Local Storage: total: 931.51 GiB used: 533.57 GiB (57.3%) 
  SMART Message: Unable to run smartctl. Root privileges required. 
  ID-1: /dev/sda vendor: Samsung model: SSD 860 EVO 1TB size: 931.51 GiB 
  block size: physical: 512 B logical: 512 B speed: 6.0 Gb/s serial: <filter> 
  rev: 3B6Q scheme: GPT 
Partition:
  ID-1: / raw size: 100.00 GiB size: 97.93 GiB (97.93%) 
  used: 49.69 GiB (50.7%) fs: ext4 dev: /dev/sda6 
Swap:
  Alert: No Swap data was found. 
Sensors:
  System Temperatures: cpu: 51.0 C mobo: 49.0 C 
  Fan Speeds (RPM): cpu: 0 
Info:
  Processes: 258 Uptime: 25m Memory: 23.26 GiB used: 4.29 GiB (18.5%) 
  Init: systemd v: 246 Compilers: gcc: 10.2.0 Packages: pacman: 1312 lib: 355 
  flatpak: 0 Shell: Zsh v: 5.8 running in: konsole inxi: 3.1.05
2

:+1: Welcome to Manjaro! :+1:

There is new firmware out since October 2020. Have you installed that yet?

:thinking:

3

Shure MV7 is a very new microphone. I have seen some of the review videos about it that have appeared in the last week, but no mention about use with Linux yet
I have also not found any reports about the other Shure Motiv microphones and interfaces that have been around for a while

Firmware v1.1.0 is marked as ‘Initial Release’ and does not have a download link so it looks to me that this is the original firmware with a confusing version number

This microphone has built-in effects processing that requires software support and the USB connection might not work on Linux until some equivalent software support is developed

I suggest you lock the audio controls on the microphone and see if works any better in that state
(the USB device might be checking for instructions from the proprietary software)

Please post response to this command to see if there are any hardware controls for this microphone

amixer --card=1

ALSA might have no hardware controls and only rely on hardware controls on the microphone

and please post response to

pacmd list-sinks

for more information about output:stereo-fallback and output:multichannel-output

1 Like
4

@Fabby : I just tried that and it does not make a difference. For the curious out there wondering how to update the firmware, you have to go to the motiv app and click in about. Weird location to place the firmware update option…

@nikgnomic : I locked the options in the microphone but it’s behaving the same way as without blocking it :confused: . Below are the outputs of the two commands you just mentioned.

$ amixer --card=1
Simple mixer control 'Microphone',0
  Capabilities: cvolume cvolume-joined cswitch cswitch-joined
  Capture channels: Mono
  Limits: Capture 0 - 24
  Mono: Capture 24 [100%] [36.00dB] [on]
Simple mixer control 'USB Streaming',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined
  Playback channels: Mono
  Limits: Playback 0 - 24
  Mono: Playback 19 [79%] [-5.00dB] [on]

$ pacmd list-sinks
2 sink(s) available.
    index: 0
        name: <alsa_output.pci-0000_00_1f.3.analog-stereo>
        driver: <module-alsa-card.c>
        flags: HARDWARE HW_MUTE_CTRL HW_VOLUME_CTRL DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
        state: SUSPENDED
        suspend cause: IDLE
        priority: 9039
        volume: front-left: 38069 /  58% / -14.15 dB,   front-right: 38069 /  58% / -14.15 dB
                balance 0.00
        base volume: 65536 / 100% / 0.00 dB
        volume steps: 65537
        muted: no
        current latency: 0.00 ms
        max request: 0 KiB
        max rewind: 0 KiB
        monitor source: 0
        sample spec: s16le 2ch 44100Hz
        channel map: front-left,front-right
                     Stereo
        used by: 0
        linked by: 0
        configured latency: 0.00 ms; range is 0.50 .. 2000.00 ms
        card: 0 <alsa_card.pci-0000_00_1f.3>
        module: 6
        properties:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "ALC257 Analog"
                alsa.id = "ALC257 Analog"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "0"
                alsa.card = "0"
                alsa.card_name = "HDA Intel PCH"
                alsa.long_card_name = "HDA Intel PCH at 0xdd148000 irq 135"
                alsa.driver_name = "snd_hda_intel"
                device.bus_path = "pci-0000:00:1f.3"
                sysfs.path = "/devices/pci0000:00/0000:00:1f.3/sound/card0"
                device.bus = "pci"
                device.vendor.id = "8086"
                device.vendor.name = "Intel Corporation"
                device.product.id = "9d71"
                device.product.name = "Sunrise Point-LP HD Audio (ThinkPad T480)"
                device.form_factor = "internal"
                device.string = "front:0"
                device.buffering.buffer_size = "352800"
                device.buffering.fragment_size = "176400"
                device.access_mode = "mmap+timer"
                device.profile.name = "analog-stereo"
                device.profile.description = "Analog Stereo"
                device.description = "Built-in Audio Analog Stereo"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-pci"
        ports:
                analog-output-speaker: Speakers (priority 10000, latency offset 0 usec, available: unknown)
                        properties:
                                device.icon_name = "audio-speakers"
                analog-output-headphones: Headphones (priority 9900, latency offset 0 usec, available: no)
                        properties:
                                device.icon_name = "audio-headphones"
        active port: <analog-output-speaker>
  * index: 2
        name: <alsa_output.usb-Shure_Inc_Shure_MV7-00.analog-stereo>
        driver: <module-alsa-card.c>
        flags: HARDWARE DECIBEL_VOLUME LATENCY DYNAMIC_LATENCY
        state: SUSPENDED
        suspend cause: IDLE
        priority: 9049
        volume: front-left: 49151 /  75% / -7.50 dB,   front-right: 49151 /  75% / -7.50 dB
                balance 0.00
        base volume: 65536 / 100% / 0.00 dB
        volume steps: 65537
        muted: no
        current latency: 0.00 ms
        max request: 0 KiB
        max rewind: 0 KiB
        monitor source: 3
        sample spec: s16le 2ch 44100Hz
        channel map: front-left,front-right
                     Stereo
        used by: 0
        linked by: 0
        configured latency: 0.00 ms; range is 0.50 .. 2000.00 ms
        card: 5 <alsa_card.usb-Shure_Inc_Shure_MV7-00>
        module: 28
        properties:
                alsa.resolution_bits = "16"
                device.api = "alsa"
                device.class = "sound"
                alsa.class = "generic"
                alsa.subclass = "generic-mix"
                alsa.name = "USB Audio"
                alsa.id = "USB Audio"
                alsa.subdevice = "0"
                alsa.subdevice_name = "subdevice #0"
                alsa.device = "0"
                alsa.card = "1"
                alsa.card_name = "Shure MV7"
                alsa.long_card_name = "Shure Inc Shure MV7 at usb-0000:3c:00.0-1, full speed"
                alsa.driver_name = "snd_usb_audio"
                device.bus_path = "pci-0000:3c:00.0-usb-0:1:1.0"
                sysfs.path = "/devices/pci0000:00/0000:00:1d.0/0000:04:00.0/0000:05:02.0/0000:3c:00.0/usb3/3-1/3-1:1.0/sound/card1"
                udev.id = "usb-Shure_Inc_Shure_MV7-00"
                device.bus = "usb"
                device.vendor.id = "14ed"
                device.vendor.name = "Shure Inc."
                device.product.id = "1012"
                device.product.name = "Shure MV7"
                device.serial = "Shure_Inc_Shure_MV7"
                device.string = "front:1"
                device.buffering.buffer_size = "352800"
                device.buffering.fragment_size = "176400"
                device.access_mode = "mmap+timer"
                device.profile.name = "analog-stereo"
                device.profile.description = "Analog Stereo"
                device.description = "Shure MV7 Analog Stereo"
                module-udev-detect.discovered = "1"
                device.icon_name = "audio-card-usb"
        ports:
                analog-output: Analog Output (priority 9900, latency offset 0 usec, available: unknown)
                        properties:

        active port: <analog-output>
1 Like