HP Laptop mute button stuck after installing Zorin OS Core

Also, the OS says that whenever I click the mute/unmute button, that it does mute/unmute but the button is always red whenever i click it (which means it's muted even though the OS says it isn't muted) and no sound, whatever I try. Could someone help me with this, please?

A very old Ubuntu thread which may help (or hinder):

It could also be as a result of a kernel bug:


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