Sound problems in Mageia 5

Long time ago, I experienced a problem with the sound in Mageia 5. Some videos would play without sound after I applied an update.

Back then, I discovered the problem was caused because ffmpeg had been updated but, I never found out why, the tainted repository did not pick up the correct package, so I was using the common ffmpeg package, not the tainted version that allows me to play sound for the videos.

I fixed the problem but forgot to write how I did it.

Last week, the same problem hit my Mageia install.  On my laptop, I fixed it the painful way: I located the package and the dependencies online and installed them one by one.

However, I remembered that was not the way I had fixed the situation before.  

It was quite simple.  All you have to do is open Mageia control center and delete all repos.  Then, you retrieve them again and, voila!  You will see that the tainted ffmpeg version is available.