KDE is an international technology team creating user-friendly free and open source software for desktop and portable computing. KDE’s software runs on GNU/Linux, BSD and other operating systems, including Windows.
If you encounter a bug, proceed to https://bugs.kde.org, check whether it has been reported.
If it hasn't, report it yourself.
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Everytime I want to play a video (no matter whether the codec is h.264 or h.265), this happens:
When I play it using VLC, it works just fine. I'm running Arch with all the codecs installed. How do I fix this? Please don't tell me to switch to another video player, if I wanted to, I would have done it already.
Koko is a photo viewer, not a video player. Although it does play some things it's not reliable.
Just to make sure, do you have all the gstreamer stuff installed?
What do you mean with "all the gstreamer stuff"? I have installed
gstreamer 1.22.6-1,
gstreamer-vaapi 1.22.6-1,
lib32-gstreamer 1.22.5-1,
phonon-qt5-gstreamer 4.10.0-4,
qt6-multimedia-gstreamer 6.6.0-1