The VideoLAN Forums

I think I might found the workaround. In VLC settings, go to Video and change Output from Automatic to X11 (XCB). No more hanging since then

Thank you, this worked for me; on a fully update Kubuntu 20.04 machine. Reading through the thread ruins the experience as much as the actual bug.

I'm having a similar issue as well. I know this is supposed to be Windows only, but maybe since I'm using Kubuntu and it happens to me, perhaps the thread might be moved to a more generic category? Anyways, I have two displays setup on Kubuntu 14.04.2. Well, its actually Ubuntu server with KDE added...