built in cam and mic not showing anything

dajlano

New Member
Credits
161
hi everyone,

when I go on to anything that uses mic or webcam, whether it's OBS, Zoom, or Cheese, my mic seems to catch no sound and when my webcam is recognized it shows a feed of a black screen. i've made sure that there is nothing obstructing the lens.

does anybody have any ideas about what the issue may be?

as implied by the fact that i chose this location to make this post, i'm on linux mint, using Cinnamon 4.4.8.

thank you,
linux rocks!
 


Tolkem

Well-Known Member
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8,516
Hardware details would be helpful. In the meantime, you could try and install cheese
Code:
sudo apt install cheese
to check whether your camera is working. Also, you could install audicity
Code:
sudo apt install audacity
and check if your mic is working, or you could use any other two apps you prefer to check that.
 

Lord Boltar

Well-Known Member
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In some cases your media player (VLC, mplayer, amongst others) will need to know the video and audio device files for your webcam. Before you plug in your webcam, try the following two commands in the terminal
Code:
ls /dev/video*
Code:
ls /dev/audio*
Make a note of the devices appearing. Now plug in your webcam, allow the system a few seconds to register the device, and run the two commands again. The new appearances should belong to your webcam (for instance, /dev/video0 and /dev/audio2). If nothing new appears, you may need to switch your webcam on. For a built-in webcam, you may have a function key to do so.

If you have VLC installed this test of just the video from your webcam can be done as follows. This assumes the webcam is installed as '/dev/video0'. Which the above two commands will tell you so you may have to edit /video0 to whatever is correct
Code:
vlc v4l2:///dev/video0
 

wizardfromoz

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Staff member
Gold Supporter
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brickwizard

Well-Known Member
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microphone ....If you have inxi installed you could also run in terminal, inxi -A [inxispace-A]

your looking for a report similar to this
Audio:
Device-1: Intel Xeon E3-1200 v3/4th Gen Core Processor HD Audio
driver: snd_hda_intel
Device-2: Intel 8 Series/C220 Series High Definition Audio
driver: snd_hda_intel
Device-3: Aveo USB2.0 Camera type: USB driver: snd-usb-audio,uvcvideo
Device-4: C-Media Audio Adapter (Unitek Y-247A) type: USB
driver: hid-generic,snd-usb-audio,usbhid
Sound Server: ALSA v: k5.4.0-88-generic
this is the report for my combi camera/mic, if you have separate components then you should have an entry for the mic only
 
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