On Wed, 30 Oct 2019 23:41:58 +0100 (CET) <sterbl...@tutanota.com> wrote:
> Don't know how to explain my problem (probably because I am not > familiar with hardware and sound relation setting). Apology if > description of my problem looks incompletely. My problem is when > attending the online meeting, my laptop's microphone never worked at > all. > > My laptop is HP 840 G5, and its audio should be > https://support.hp.com/us-en/document/c05903000#AbT9 > <https://support.hp.com/us-en/document/c05903000#AbT9> > > Environment I use: > > kernel: 5.2.0-2-amd64 > Debian version: bullseye/sid > > arecord --list-devices shows > > **** List of CAPTURE Hardware Devices **** > card 0: PCH [HDA Intel PCH], device 0: CX8200 Analog [CX8200 Analog] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > > Checking alsamixer, it looks like ok because microphone is turned on > > https://imgur.com/fPBFMZo <https://imgur.com/fPBFMZo> > https://imgur.com/e9Bbavf <https://imgur.com/e9Bbavf> > https://imgur.com/2IQxVQd <https://imgur.com/2IQxVQd> > > Following the instruction at > https://linuxconfig.org/how-to-test-microphone-with-audio-linux-sound-architecture-alsa > <https://linuxconfig.org/how-to-test-microphone-with-audio-linux-sound-architecture-alsa> > for testing my microphone. > > 1. Record sound produced by microphone > arecord -d 10 /tmp/test-mic.wav2. Reply the sound recorded > aplay /tmp/test-mic.wav > I am sure I can hear the sound produced by my microphone. > > Unfortunately when attending all the meeting (such as google meets), > even with permission is granted (allowing microphone and camera to be > used temporary) my microphone never function (so people in the > meeting never heard my voice). > > I suppose this could be something I miss or I am not aware. But the > problem i do not know where to check the possible root cause, and fix > it. > > I appreciate any suggestions! This looks more Firefox related rather than your desktop's issue. Check the troubleshooting guide here https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues and hopefully you ll find an answer. -- Regards, Nektarios Katakis