11 years ago
  Gadmei (PC to TV)
  Mint (older version)
  Works perfectly
What works:

Display on PC and TV works simultaneously.
By default, video playback works in MPlayer, Gnome Player.

What doesn't work:

By default, video playback is not visible on TV in Video player(Totem, vlc).

What was done to make it work:

To make video visible on TV, VLC options needs to be changed:-
Menu "Tools" -> "Preference" -> "Video" -> Choose "output" as "X11 video output".

Additional notes:

Max Resolution of 1024 x 768.