(In reply to Aurelien Oudelet from comment #10) I just wish I knew what files to nuke or what switches to flip in my daily driver that (potentially) prevent the named video players from working as expected. That's enough to convince me it's configuration. I created a new user in MCC, logged in as test user in my normal desktop, Plasma, and found the files under consideration played normally in vlc, there, as well as smplayer. I don't think I can do that but, anyway, it seems to be a matter of user configuration, on my machine, anyway. David Walser said it might be appropriate for a MGA7TOO on the whiteboard of this bug. I first reported at There are details of my hardware and environment, there, but I think they might not be relevant, so I'll spare this bug, for now. ffplay, parole, xplayer, totem, seem to be able to play the files normally. Kaffeine, mplayer, smplayer, dragon player play audio, no video. I've got what looks like a very similar problem of audio, no video with vlc-3.0.11. and related packages on 64-bit MGA7. This is very much a work in progress as I try different platforms and settings Same platform running M7.1 everything runs just fine. Same condition across Plasma, Xfce, Gnome, IceWM Vbox clients run under M8 everything works just fine. Videos ( Totem ) plays both audio and video

Parole Media Player plays both audio and video VLC, mp4, plays only audio, no video, black screen Package ffmpeg-4.3.86_64 is already installed Package vlc-3.0.11.86_64 is already wilcal]# urpmi ffmpeg

VGA compatible controller: Intel Corporation Iris Plus Graphics G1 (Ice Lake) (rev 07) Intel® UHD Graphics ‎Iris Plus Graphics G1 (Ice Lake) 10th Generation Intel® Core™ i5-1035G1 Processor, 4 cores, 8 threads

Ubuntu intel graphics driver avc1