Bug 480569

Summary:	When playing certain VP9 video files, screen turns white quickly
Product:	[Applications] dragonplayer	Reporter:	B Negri <b.gomes.negri>
Component:	general	Assignee:	Unassigned bugs mailing-list <unassigned-bugs>
Status:	RESOLVED DOWNSTREAM
Severity:	normal	CC:	4wy78uwh, b.gomes.negri, myriam, sitter
Priority:	NOR	Keywords:	qt6
Version:	24.02.0	Flags:	4wy78uwh: performance-
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	List of installed packages Depiction of the problem and how installing VLC remediates it. Reproduction screencast depicting the problem and how installing VLC remediates it.

Description B Negri 2024-01-30 22:09:52 UTC

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

Comment 1 Roke Julian Lockhart Beedell 2024-03-28 18:34:16 UTC

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.

Comment 2 Harald Sitter 2024-10-23 07:50:30 UTC

Best talk to fedora.

Comment 3 Roke Julian Lockhart Beedell 2024-10-23 10:49:11 UTC

(In reply to B Negri from comment #0)
Do you have the ffmpeg-full codecs from RPMFusion installed?

Comment 4 Roke Julian Lockhart Beedell 2024-10-24 21:24:43 UTC

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.

Comment 5 Roke Julian Lockhart Beedell 2024-10-24 21:33:56 UTC

(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".