Bug 456007

Summary: Blender 3.1 and 3.2 previews don't show up on Dolphin
Product: [Frameworks and Libraries] kio-extras Reporter: machaquiro
Component: Thumbnails and previewsAssignee: Plasma Bugs List <plasma-bugs-null>
Status: CONFIRMED ---    
Severity: normal CC: kde, nate
Priority: NOR    
Version First Reported In: 22.04.2   
Target Milestone: ---   
Platform: Manjaro   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:
Attachments: Dolphin thumbnail fail

Description machaquiro 2022-06-27 09:00:34 UTC 
SUMMARY
***
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***


STEPS TO REPRODUCE
1. Download Blender demos from latest 3 versions, https://cloud.blender.org/p/gallery/629f23f908e12d4ff15241d3
2. Open Dolphin and go to folder were demo files were downloaded
3. Preview doesn't show up for Blender 3.1 and 3.2, but it works with 3.0 or older versions.

OBSERVED RESULT


EXPECTED RESULT


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

ADDITIONAL INFORMATION
Comment 1 machaquiro 2022-06-27 09:07:46 UTC 
Created attachment 150183 [details]
Dolphin thumbnail fail
Comment 2 Nate Graham 2022-06-28 16:22:01 UTC 
Can confirm. Probably the file format changed enough for the thumbnailer to start failing.
Comment 3 machaquiro 2023-05-10 09:23:35 UTC 
Still no preview with recent Blender 3.5.1 and latest kio-extras 23.04.
Comment 4 Kloud 2025-12-09 07:37:27 UTC 
Can confirm
Comment 5 Kloud 2025-12-13 12:54:03 UTC 
Blender ships its own thumbnailer. This can be fixed by adding this

```
[Thumbnailer Entry]
TryExec=blender-thumbnailer
Exec=blender-thumbnailer %u %o
MimeType=application/x-blender;
```

to ~/.local/share/thumbnailers/blender.thumbnailer