Bug 483380

Summary:	Thumbnails of JXL files are not generated
Product:	[Applications] dolphin	Reporter:	Dick Tracey <traceydick>
Component:	view-engine: general	Assignee:	Dolphin Bug Assignee <dolphin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	dolphin-bugs-null, nicolas.fella
Priority:	NOR	Keywords:	qt6
Version First Reported In:	24.02.0
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Dick Tracey 2024-03-12 20:40:40 UTC

SUMMARY
Thumbnails of JXL files are not generated after upgrading to Plasma 6 on Arch Linux.
kimageformats 6.0.0, ffmpegthumbs 24.02.0, kdesdk-thumbnailers 24.02.0 are installed


STEPS TO REPRODUCE
1. Open any folder with JXL files using Dolphin (whose thumbnails were not created before)
2. 
3. 

OBSERVED RESULT
No thumbnails are visible

EXPECTED RESULT
Thumbnails generated & visible

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Arch Linux
(available in About System)
KDE Plasma Version: 6.0.1
KDE Frameworks Version: 24.02.0
Qt Version: 6.6.2

ADDITIONAL INFORMATION

Comment 1 Dick Tracey 2024-03-12 20:41:15 UTC

Forgot to mention, libjxl 0.10.2 is also installed

Comment 2 Nicolas Fella 2024-03-12 22:10:39 UTC

Can you share an affected file?

Comment 3 Nicolas Fella 2024-03-21 19:41:55 UTC

It's hard to tell without seeing an affected file, but likely this is https://bugs.kde.org/show_bug.cgi?id=484183

*** This bug has been marked as a duplicate of bug 484183 ***

Comment 4 Dick Tracey 2024-03-21 21:56:51 UTC

Sorry for the delay! According to jxlinfo, the problematic images are 16-bit RGB+alpha images, so I confirm that 484183 appears to be the same issue.