Small issue here, I’ve installed Leap 15 recently, along with the multimedia codecs.
The problem is that when playing video, it appears that the vsync is not working properly, resulting in an horizontal bar in the middle of the screen.
I have a Nvidia gtx 970, and I’ve tried setting the vsync option to “full screen repaints” in the compositor settings menu with no success.
I’ve also tried disabling the vsync in the Nvidia X server settings, also with no success.
I’ve downloaded the codecs from this website.
this could also depend on the type of file you’re opening
you could try running
to see what your gpu can handle in hardware and
to see more information about the media ie video and audio encoding and profiles and the used container format
mediainfo is not installed by default
zypper in mediainfo
not everything is supported in hardware if the media uses an unsupported profile then decoding is done in software and that could cause sync issues one way around this is letting vlc (or your preferred player) drop frames