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No Audio From Webcam Mic [SOLVED]

Posted: Mon Jul 17, 2023 10:20 am
by Kestrel
This seems to be a recent issue as it worked fine in the past. Video output from the webcam is still fine but no sound at all. I've tried two webcams (Trust and Logitech) and the problem is there on both, I tried both of them on another machine running Mint and the audio is present there so this rules out an issue with the webcams hardware. i guess something in a recent update might have broken something. Full system info below. Any help gratefully appreciated,

Code: Select all

System:    Kernel: 5.10.0-23-amd64 [5.10.179-2] x86_64 bits: 64 compiler: gcc v: 10.2.1 
           parameters: BOOT_IMAGE=/boot/vmlinuz-5.10.0-23-amd64 root=UUID=<filter> ro quiet splash 
           Desktop: Xfce 4.18.1 tk: Gtk 3.24.24 info: xfce4-panel wm: xfwm 4.18.0 vt: 7 
           dm: LightDM 1.26.0 Distro: MX-21.3_x64 Wildflower January 15  2023 
           base: Debian GNU/Linux 11 (bullseye) 
Machine:   Type: Desktop System: Dell product: Inspiron 530 v: N/A serial: <filter> Chassis: 
           type: 3 serial: <filter> 
           Mobo: Dell model: 0RY007 serial: <filter> BIOS: Dell v: 1.0.18 date: 02/24/2009 
CPU:       Info: Dual Core model: Intel Core2 Duo E8600 bits: 64 type: MCP arch: Penryn family: 6 
           model-id: 17 (23) stepping: A (10) microcode: A0B cache: L2: 6 MiB 
           flags: lm nx pae sse sse2 sse3 sse4_1 ssse3 vmx bogomips: 13299 
           Speed: 1995 MHz min/max: 1998/3330 MHz Core speeds (MHz): 1: 1995 2: 1997 
           Vulnerabilities: Type: itlb_multihit status: KVM: VMX disabled 
           Type: l1tf mitigation: PTE Inversion; VMX: EPT disabled 
           Type: mds status: Vulnerable: Clear CPU buffers attempted, no microcode; SMT disabled 
           Type: meltdown mitigation: PTI 
           Type: mmio_stale_data status: Unknown: No mitigations 
           Type: retbleed status: Not affected 
           Type: spec_store_bypass status: Vulnerable 
           Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization 
           Type: spectre_v2 
           mitigation: Retpolines, STIBP: disabled, RSB filling, PBRSB-eIBRS: Not affected 
           Type: srbds status: Not affected 
           Type: tsx_async_abort status: Not affected 
Graphics:  Device-1: Intel 82G33/G31 Express Integrated Graphics vendor: Dell Inspiron 530 
           driver: i915 v: kernel bus-ID: 00:02.0 chip-ID: 8086:29c2 class-ID: 0300 
           Device-2: Sunplus Innovation Full HD webcam type: USB driver: snd-usb-audio,uvcvideo 
           bus-ID: 4-2:3 chip-ID: 1bcf:2701 class-ID: 0102 serial: <filter> 
           Display: x11 server: X.Org 1.20.11 compositor: xfwm4 v: 4.18.0 driver: loaded: intel 
           display-ID: :0.0 screens: 1 
           Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.0x11.2") 
           s-diag: 582mm (22.9") 
           Monitor-1: VGA1 res: 1920x1080 hz: 60 dpi: 102 size: 477x268mm (18.8x10.6") 
           diag: 547mm (21.5") 
           OpenGL: renderer: Mesa DRI Intel G33 v: 1.4 Mesa 20.3.5 direct render: Yes 
Audio:     Device-1: Intel 82801I HD Audio vendor: Dell Inspiron 530 driver: snd_hda_intel 
           v: kernel bus-ID: 00:1b.0 chip-ID: 8086:293e class-ID: 0403 
           Device-2: Sunplus Innovation Full HD webcam type: USB driver: snd-usb-audio,uvcvideo 
           bus-ID: 4-2:3 chip-ID: 1bcf:2701 class-ID: 0102 serial: <filter> 
           Sound Server-1: ALSA v: k5.10.0-23-amd64 running: yes 
           Sound Server-2: PulseAudio v: 14.2 running: yes 
Network:   Device-1: Intel 82562V-2 10/100 Network vendor: Dell Inspiron 530 driver: e1000e 
           v: kernel port: fe00 bus-ID: 00:19.0 chip-ID: 8086:10c0 class-ID: 0200 
           IF: eth0 state: up speed: 100 Mbps duplex: full mac: <filter> 
Bluetooth: Device-1: Cambridge Silicon Radio Bluetooth Dongle (HCI mode) type: USB driver: btusb 
           v: 0.8 bus-ID: 7-2:2 chip-ID: 0a12:0001 class-ID: e001 
           Report: hciconfig ID: hci0 rfk-id: 0 state: up address: <filter> bt-v: 1.2 lmp-v: 2.1 
           sub-v: 149c hci-v: 2.1 rev: 149c 
           Info: acl-mtu: 310:10 sco-mtu: 64:8 link-policy: rswitch hold sniff park 
           link-mode: slave accept service-classes: rendering, capturing, audio 
Drives:    Local Storage: total: 689.33 GiB used: 359.24 GiB (52.1%) 
           SMART Message: Unable to run smartctl. Root privileges required. 
           ID-1: /dev/sda maj-min: 8:0 vendor: Crucial model: CT240BX500SSD1 size: 223.57 GiB 
           block-size: physical: 512 B logical: 512 B speed: 3.0 Gb/s type: SSD serial: <filter> 
           rev: R013 scheme: MBR 
           ID-2: /dev/sdb maj-min: 8:16 vendor: Western Digital model: WD5000AAKX-08U6AA0 
           size: 465.76 GiB block-size: physical: 512 B logical: 512 B speed: 3.0 Gb/s type: HDD 
           rpm: 7200 serial: <filter> rev: 1H19 scheme: MBR 
Partition: ID-1: / raw-size: 215.56 GiB size: 211.12 GiB (97.94%) used: 54.76 GiB (25.9%) fs: ext4 
           dev: /dev/sda1 maj-min: 8:1 
Swap:      Kernel: swappiness: 15 (default 60) cache-pressure: 100 (default) 
           ID-1: swap-1 type: partition size: 8 GiB used: 0 KiB (0.0%) priority: -2 dev: /dev/sda2 
           maj-min: 8:2 
Sensors:   System Temperatures: cpu: 40.0 C mobo: N/A 
           Fan Speeds (RPM): N/A 
Repos:     Packages: note: see --pkg apt: 2002 lib: 999 flatpak: 0 
           No active apt repos in: /etc/apt/sources.list 
           Active apt repos in: /etc/apt/sources.list.d/brave-browser-release.list 
           1: deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ bullseye main
           Active apt repos in: /etc/apt/sources.list.d/debian-stable-updates.list 
           1: deb http://deb.debian.org/debian bullseye-updates main contrib non-free
           Active apt repos in: /etc/apt/sources.list.d/debian.list 
           1: deb http://deb.debian.org/debian bullseye main contrib non-free
           2: deb http://security.debian.org/debian-security bullseye-security main contrib non-free
           Active apt repos in: /etc/apt/sources.list.d/google-chrome.list 
           1: deb [arch=amd64] https://dl.google.com/linux/chrome/deb/ stable main
           Active apt repos in: /etc/apt/sources.list.d/microsoft-edge.list 
           1: deb [arch=amd64] https://packages.microsoft.com/repos/edge/ stable main
           Active apt repos in: /etc/apt/sources.list.d/mx.list 
           1: deb http://mxlinux.mirrors.uk2.net/packages/mx/repo/ bullseye main non-free
           Active apt repos in: /etc/apt/sources.list.d/teams.list 
           1: deb [arch=amd64] https://packages.microsoft.com/repos/ms-teams stable main
Info:      Processes: 184 Uptime: 10m wakeups: 1 Memory: 7.75 GiB used: 1.5 GiB (19.4%) 
           Init: SysVinit v: 2.96 runlevel: 5 default: 5 tool: systemctl Compilers: gcc: N/A 
           alt: 10 Client: shell wrapper v: 5.1.4-release inxi: 3.3.06 
Boot Mode: BIOS (legacy, CSM, MBR)

Re: No Audio From Webcam Mic

Posted: Mon Jul 17, 2023 10:58 am
by CharlesV
Is your webcam showing as a input device in the volume control?

You should see it both in the Configuration tab as well as the Input tab.

My logitech doesnt show any output device for it until there is sound actually coming through.

Re: No Audio From Webcam Mic

Posted: Mon Jul 17, 2023 11:16 am
by MXRobo
Just FYI – I believe that Pulse Audio Volume Control (pavucontrol) will not show any output devices unless "sound" is being received by PAVU.
Caveat – it may show them after it has been selected as a source for a particular device, not sure, but again I'm almost certain that it will show if it hasn't been selected before unless sound is available.

Re: No Audio From Webcam Mic

Posted: Mon Jul 17, 2023 1:45 pm
by Kestrel
CharlesV wrote: Mon Jul 17, 2023 10:58 am Is your webcam showing as a input device in the volume control?

You should see it both in the Configuration tab as well as the Input tab.

My logitech doesnt show any output device for it until there is sound actually coming through.
Yes it is showing in both the configuration and input tabs. Should I select/tick the "Set as fallback" box?

Re: No Audio From Webcam Mic

Posted: Mon Jul 17, 2023 2:43 pm
by CharlesV
Nope, next is to get some sound going in the room and verify that the mic is working fine.

If you have zoom, just go to the settings and test the mic, watching for the volume control and see where / what it is doing. And then I would do the same thing with sound and make sure that is a) showing in the volume control - when your testing it and b) what that volume is showing in the volume control.

Re: No Audio From Webcam Mic

Posted: Mon Jul 17, 2023 3:21 pm
by Stevo
Does it show up as an input you can switch to if you install and run indicator-sound-switcher?

Re: No Audio From Webcam Mic

Posted: Mon Jul 17, 2023 3:32 pm
by Charlie Brown
Kestrel wrote: Mon Jul 17, 2023 10:20 am... worked fine in the past. ... guess something in a recent update might have broken ...
Maybe the kernel (You can simply try the most recent 6.x one from MXPI)

(... Or boot with those < 5.10.0-23 via Advanced Options on Grub ... )

Re: No Audio From Webcam Mic

Posted: Mon Jul 17, 2023 3:55 pm
by Kestrel
Stevo wrote: Mon Jul 17, 2023 3:21 pm Does it show up as an input you can switch to if you install and run indicator-sound-switcher?
It does. The radio button to select it wasn't switched "on" (if that makes sense). I have now clicked/selected the radio button next to it. It seems it does not remain selected permanently but clicking refresh seems to switch to it again i.e the radio button becomes highlighted again as if its been clicked. I'll go and test it now on the real-life applications I mentioned before such as the test video recording that failed before.

Re: No Audio From Webcam Mic [SOLVED]

Posted: Mon Jul 17, 2023 4:12 pm
by Kestrel
That did the trick Stevo. For any future readers who need it, its in the test repo. Many thanks to all who took the time to reply.