Created attachment 165373 [details] List of installed packages SUMMARY When playing this video file: https://upload.wikimedia.org/wikipedia/commons/transcoded/1/1e/First_8K_Video_from_Space_-_Ultra_HD_VP9.webm/First_8K_Video_from_Space_-_Ultra_HD_VP9.webm.720p.vp9.webm screen turns white while playing STEPS TO REPRODUCE 1. Download the mentioned video file 2. Try to play it on Dragon Player OBSERVED RESULT Video stream turns white EXPECTED RESULT Video stream remains normal SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora Rawhide (available in About System) KDE Plasma Version: 5.92.0 (desktop says 6.0 RC1) KDE Frameworks Version: 5.248.0 Qt Version: 6.6.1 ADDITIONAL INFORMATION Output of rpm -qa (list of installed packages) attached Patented codecs not installed
Created attachment 167899 [details] Depiction of the problem and how installing VLC remediates it. This video demonstrates the issue on multiple WEBM video files, one from https://bugs.kde.org/show_bug.cgi?id=480569#c0, the other created by Spectacle. Afterward, it demonstrates that installing VLC remediates the problem.
Best talk to fedora.
(In reply to B Negri from comment #0) Do you have the ffmpeg-full codecs from RPMFusion installed?
Created attachment 175198 [details] Reproduction screencast depicting the problem and how installing VLC remediates it. Directly uploaded a video file instead, to make it easier for those who want evidence. I'll try to file a bug at https://bugzilla.redhat.com/enter_bug.cgi?product=Fedora now.
(In reply to Harald Sitter from comment #2) Reported https://bugzilla.redhat.com/show_bug.cgi?id=2321639#c0. (In reply to Roke Julian Lockhart Beedell from comment #3) Apologies, ignore https://bugs.kde.org/show_bug.cgi?id=480569#c3 - I've noticed "Patented codecs not installed".