Has exactly the same model (Dell Inspiron 24 5000 All-in-one, aka
Inspiron 5400 All-in-one). Also "aplay -l" showed the card is "ALC274
Analog". Finally got the sound working in Ubuntu 20.04, by appending the
following line
𝚘𝚙𝚝𝚒𝚘𝚗𝚜 𝚜𝚗𝚍-𝚑𝚍𝚊-𝚒𝚗𝚝𝚎𝚕 𝚖𝚘𝚍𝚎𝚕=𝚍𝚎𝚕𝚕-𝚑𝚎𝚊𝚍𝚜𝚎𝚝-𝚖𝚞𝚕𝚝𝚒
in /etc/modprobe.d/alsa.conf. After reboot, the sound at both speaker
and microphone worked.
Various articles mentioned this. One such reference is:
https://bbs.archlinux.org/viewtopic.php?id=234965
A big thank you to the community!
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https://bugs.launchpad.net/bugs/1922715
Title:
[Inspiron 5400 AIO, Realtek ALC274, Speaker, Internal] No sound at all
(dummy output)
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