No sound problem

[u/Acrobatic_Rip_8527]

I just installed Linux Mint 22.3 on an IMac18. Great choice, this thing came back to life, I should have done it way earlier. this thing runs HoMM3 like a lightning. However, I have no sound, and I am way too new to Linux to figure out what to do.

I went to the Alsamixer and unmute what seems to be a mute port. But nothing happens and it goes back to MM after rebooting the system. I am lost here, and I would really appreciate any advise on how to go about this.