After installing codecs to watch files in x265, the Totem player now doesn't play .mkv files any more.
It says it is invalid and shows this:
--transient-for=69206027 gstreamer|1.0|totem|Matroska demuxer|decoder-video/x-matroska
I can still watch them with VLC, but still, the image sometimes gets quiet pixelated.
Can someone please help me?