Lost sound but not in Firefox...


New Member
Hello, I'm very new to Linux (only 3 weeks) today my laptop is not play sound for mp3 file or videos.
I have Linux Mint Cinnamon last version, I check the sound option menu I can play the test for the left and right speaker(headphone) I can also play sound from Firefox (Youtube or open mp3 file with it), but I cannot hear anything from media player or VLC.
Any idea how I can solve my problem?
Thanks in advance


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