Bug 510874

Summary: Dolphin becomes extremely slow when directory containing large file that ends with ".theme"
Product: [Applications] dolphin Reporter: Antares0982
Component: generalAssignee: Dolphin Bug Assignee <dolphin-bugs-null>
Status: RESOLVED DUPLICATE    
Severity: normal CC: dolphin-bugs-null, meven
Priority: NOR    
Version First Reported In: 25.08.2   
Target Milestone: ---   
Platform: NixOS   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Antares0982 2025-10-21 16:33:59 UTC 
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***

SUMMARY


STEPS TO REPRODUCE
1. Rename a large file (about 50M) with .theme suffix


OBSERVED RESULT
Dolphin becomes extremely slow

EXPECTED RESULT


SOFTWARE/OS VERSIONS
Operating System: NixOS 25.11
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.19.0
Qt Version: 6.9.2
Kernel Version: 6.17.1-zen1 (64-bit)
Graphics Platform: Wayland
Processors: 24 × 13th Gen Intel® Core™ i7-13700K
Memory: 32 GiB of RAM (31.1 GiB usable)
Graphics Processor 1: NVIDIA GeForce RTX 3090
Graphics Processor 2: Intel® Graphics

ADDITIONAL INFORMATION
Comment 1 Méven 2025-10-23 15:30:08 UTC 
Is the content of your .theme file text, or binary ?

.theme has a application/x-desktop, i.e the same a .desktop files.
https://gitlab.freedesktop.org/xdg/shared-mime-info/-/blob/master/data/freedesktop.org.xml.in?ref_type=heads#L4761

Consequently you hit the same bug as 481702

*** This bug has been marked as a duplicate of bug 481702 ***
Comment 2 Antares0982 2025-10-26 15:04:53 UTC 
(In reply to Méven from comment #1)
> Is the content of your .theme file text, or binary ?
> 
> .theme has a application/x-desktop, i.e the same a .desktop files.
> https://gitlab.freedesktop.org/xdg/shared-mime-info/-/blob/master/data/
> freedesktop.org.xml.in?ref_type=heads#L4761
> 
> Consequently you hit the same bug as 481702
> 
> *** This bug has been marked as a duplicate of bug 481702 ***

The file was actually a large zip file (used by OnePlus theme store).