Hi, I have recently upgraded from Devuan Chimaera to Daedalus.
I use Devuan in my laptop Dell Latitude 3420.

My kernel info is as follows:

Linux devuan-Latitude 5.10.0-22-amd64 #1 SMP Debian 5.10.178-3 (2023-04-22) x86_64 GNU/Linux

 ~$ cat  /proc/asound/pcm
00-00: HDA Analog (*) :  : playback 1 : capture 1
00-01: HDA Digital (*) :  : playback 1 : capture 1
00-03: HDMI1 (*) :  : playback 1
00-04: HDMI2 (*) :  : playback 1
00-05: HDMI3 (*) :  : playback 1
00-06: DMIC (*) :  : capture 1
00-07: DMIC16kHz (*) :  : capture 1

I generally connect to a external monitor using a HDMI cable. Both before and after the upgrade:

1. I don't get the sound output from my laptop via the HDMI cable.
2. Also, my microphone input isn't working. I need to plug in my earphones or use an external webcam + mic for  video conferencing.

Pulse audio and pavucontrol is installed. But it doesn't show the HDMI option in the "Configuration" tab and the internal microphone in the "Input Devices" tab.

This was not the case in my Asus netbook. Everything worked fine with Devuan Chimaera in that laptop [that was a 2015 model; Dell Latitude is a 2022 model].

On a side note, my Dell came with Ubuntu pre-installed. And everything works flawlessly in that. That means there is no problem with the hardware. But in Devuan, something is missing or I haven't installed some important software.

Can someone help me out?
What other info will be required from my end?

Regards,
Thanks in advance.