Comment 0 for bug 1903848

This seems to be a persistent problem that has been around a few kernel versions earlier (see i.e.: https://bugs.launchpad.net/ubuntu/+source/linux-signed/+bug/1881757 ).

After yesterday's apt update to 5.4.0-53-generic (amd64), my USB webcam (Logitech c930) as well as my internal audio (Intel HDA) stopped working altogether. All I get is a dummy audio output from the list of devices, and the webcam is not working either.

I can still see my pre-existing audio devices with 'lspci | grep Audio'.

'inxi -SA' reports this:

Audio:
  Device-1: Intel 5 Series/3400 Series High Definition Audio driver: N/A
  Device-2: NVIDIA GP104 High Definition Audio driver: N/A

(The #2 NVIDIA one being the video card's audio option, which I don't use, but it's not listed as being available either.)
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I've been trying to run ALSA's configuration and it seems that the ALSA modules are not loading.

Also been trying out various fix proposals from people who've had the same issue, but no luck on that frontier. Anyway, now I'm stuck with no webcam, no audio. Any suggestions?

Thanks.