No playback sound, despite working before, & despite speakers testing fine

OS— Ubuntu 22.04.3 LTS, 64-bit.

Device— Acer Predator PH315-54, processor Intel i7-11800H.

I have not used Audacity in a while. I do not know exactly how long – I think a little over a year. However, the last time I opened Audacity on this computer, I know, for a fact, that it was able to play an .mp3 file perfectly fine.

Today, I opened Audacity. To my knowledge I have changed nothing about either it, or my system, except of course having run regular Ubuntu software updates. Suddenly, I have no sound. I am not able to play either the .mp3 I know I was able to play before, or any other I try. The playback cursor and interface all indicate the track is playing; I can see the green and yellow playback level bars jumping, as if it is producing sound; but there is no actual sound.

I open Ubuntu Settings > Sound > Output device. There is only one option, “Speakers - Built-in Audio”; I click “Test”. In the dialogue box that comes up, when I click “Front left” or “Front right”, both speakers work perfectly fine; I hear the voice perfectly clearly.

Back in Audacity, I go to the Playback device dropdown menu. There are a whole bunch of options: “HDA Intel PCH: HDMI” 0, 1, 2, and 3, “HDA Nvidia: HDMI” 0, 1, 2, and 3, and “hdmi”. I try playing the track with every single one of these selected one by one; there is no sound on absolutely any of them.

What are my next diagnostic steps?

Thanks in advance, and Peace to you. <3

— Elia Jay.

EDIT— I have resolved the problem, and it was a stupidly easy fix! I just went to Tools > Reset configuration. Now my playback device dropdown has a bunch of new options under it, the one automaticly selected being “default”. Now when I play, I hear sound! Thanks anyway tho. <3

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Glad to hear you are back up and running, and thanks for posting your solution. :grinning:

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