Hi, If someone can give it a try, I had found no solution to free the sound device or to kill a mpv zpmbie process.
Inside a tmux panel, while playing any audio/video, hit CTRL+Z . Then you will not be able to resume the process with fg, neither kill it, and it will lock the sound device until next reboot. cheers. -- x9p | PGP : 0x03B50AF5EA4C8D80 / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE 1524 E7EE