Bug 440398

Summary:	System Settings video previews fail silently when GStreamer is not installed
Product:	[Applications] systemsettings	Reporter:	kingofgamesyami
Component:	kcm_kwineffects	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED FIXED
Severity:	normal	CC:	nate, plasma-bugs-null
Priority:	NOR
Version First Reported In:	5.22.4
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:	https://invent.kde.org/plasma/kwin/-/commit/a6f6aa19cd1c817fe678b84d83a54f78375fb940	Version Fixed In:	6.4.0
Sentry Crash Report:

Description kingofgamesyami 2021-07-30 00:55:31 UTC

SUMMARY

If gstreamer is not installed, system settings video previews fail to load with no notification to the user of the issue or alternative option to view the preview.

STEPS TO REPRODUCE
1. Install KDE Neon (ships without GStreamer)
2. Open any video preview in system settings (example: Desktop Effects)

OBSERVED RESULT
Blank Screen

EXPECTED RESULT
1. User visible error message / warning that gstreamer is not installed
2. Option to open preview in web browser

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 5.22
(available in About System)
KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION

Comment 1 Oliver Beard 2025-04-25 21:04:30 UTC

Git commit a6f6aa19cd1c817fe678b84d83a54f78375fb940 by Oliver Beard.
Committed on 25/04/2025 at 20:48.
Pushed by olib into branch 'master'.

src/kcms,plugins: Remove effects videos
These generally no longer work, and whilst they could be made to work again, they would still be out of date.

If the videos were updated, they would quickly become outdated again as Plasma is updated via wallpaper, theme and other changes.

Effects are previewed easily enough anyway by enabling them and using them in practice.
Related: bug 440244, bug 462932, bug 475633, bug 421884
FIXED-IN: 6.4.0

M  +0    -1    CMakeLists.txt
M  +0    -6    src/kcms/common/effectsmodel.cpp
M  +0    -5    src/kcms/common/effectsmodel.h
M  +0    -28   src/kcms/effects/ui/Effect.qml
D  +0    -43   src/kcms/effects/ui/Video.qml
M  +1    -4    src/plugins/diminactive/metadata.json
M  +0    -1    src/plugins/dimscreen/package/metadata.json
M  +0    -1    src/plugins/fadedesktop/package/metadata.json
M  +1    -4    src/plugins/invert/metadata.json
M  +1    -2    src/plugins/magiclamp/metadata.json
M  +1    -2    src/plugins/magnifier/metadata.json
M  +0    -1    src/plugins/maximize/package/metadata.json
M  +1    -4    src/plugins/mouseclick/metadata.json
M  +1    -4    src/plugins/overview/metadata.json
M  +1    -2    src/plugins/slide/metadata.json
M  +0    -3    src/plugins/slidingpopups/metadata.json
M  +0    -3    src/plugins/snaphelper/metadata.json
M  +0    -1    src/plugins/squash/package/metadata.json
M  +1    -4    src/plugins/trackmouse/metadata.json
M  +1    -4    src/plugins/wobblywindows/metadata.json
M  +1    -2    src/plugins/zoom/metadata.json

https://invent.kde.org/plasma/kwin/-/commit/a6f6aa19cd1c817fe678b84d83a54f78375fb940