On 2021-02-05 2:54 a.m., Per Jessen wrote:
James Knott wrote:
I have a weird problem with my Logitech C270 webcam. It has worked well for years, including a lot of video chats recently. However, a couple of weeks ago, the microphone stopped working. It doesn't even appear in Pulse Audio. In pavucontrol ?
Does it appear in the output from 'arecord -L' ?
All that's connected at the moment is the webcam and line out to my A/V receiver. arecord -L null Discard all samples (playback) or generate zero samples (capture) default Default ALSA Output (currently PulseAudio Sound Server) sysdefault:CARD=PCH HDA Intel PCH, VT2020 Analog Default Audio Device front:CARD=PCH,DEV=0 HDA Intel PCH, VT2020 Analog Front speakers sysdefault:CARD=U0x46d0x825 USB Device 0x46d:0x825, USB Audio Default Audio Device front:CARD=U0x46d0x825,DEV=0 USB Device 0x46d:0x825, USB Audio Front speakers surround21:CARD=U0x46d0x825,DEV=0 USB Device 0x46d:0x825, USB Audio 2.1 Surround output to Front and Subwoofer speakers surround40:CARD=U0x46d0x825,DEV=0 USB Device 0x46d:0x825, USB Audio 4.0 Surround output to Front and Rear speakers surround41:CARD=U0x46d0x825,DEV=0 USB Device 0x46d:0x825, USB Audio 4.1 Surround output to Front, Rear and Subwoofer speakers surround50:CARD=U0x46d0x825,DEV=0 USB Device 0x46d:0x825, USB Audio 5.0 Surround output to Front, Center and Rear speakers surround51:CARD=U0x46d0x825,DEV=0 USB Device 0x46d:0x825, USB Audio 5.1 Surround output to Front, Center, Rear and Subwoofer speakers surround71:CARD=U0x46d0x825,DEV=0 USB Device 0x46d:0x825, USB Audio 7.1 Surround output to Front, Center, Side, Rear and Woofer speakers iec958:CARD=U0x46d0x825,DEV=0 USB Device 0x46d:0x825, USB Audio IEC958 (S/PDIF) Digital Audio Output