https://bugs.kde.org/show_bug.cgi?id=512830
Bug ID: 512830
Summary: Dolphin force the generation of previews for PDFs when
the preview option for them is off and not when it's
on
Classification: Applications
Product: dolphin
Version First 25.08.3
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
SUMMARY
I have some big pdfs in one of my directories, and i noticed that my fans went
faster when i was in that folder. A quick inspection using htop confirmed it
was the preview dolphin was making that was intense for my cpu. So i went to
disable the preview, and i expected this to stop. But it didn't.
Each time i open Dolphin, my cpu go to 100% for one core for the same reason,
even though the previews of the pdfs weren't showing. The only thing that
seemed to solve the issue was to reactivate the preview again, and this time,
no more cpu going to 100%.
I should mention that i cleared the Doplhin's cache (~/.cache/dolphin) and
~/.cache/*.kcache files. That didn't helped.
STEPS TO REPRODUCE / OBSERVED RESULT
1. Have a big PDF in a folder and go in it
2. CPU usage should go up to 100% for one core, wait for it to calm down
3. Disable the preview in Dolphin for PDFs
4. Close the settings and go to the folder
5. CPU usage should go up to 100% for one core, wait for it to calm down
6. Close dolphin and reopen it, go to the same folder
7. CPU usage should go up to 100% for one core, wait for it to calm down
8. Reactivate the preview in the settings, rego to the folder
9. CPU usage should be normal
EXPECTED RESULT
Preview should not be generated when previews are disabled. Also, it would be
nice to have a little loading icon or at least a hint that something is
computing when previews are generated...
SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 43
KDE Plasma Version: 6.5.3
KDE Frameworks Version: 6.20.0
Qt Version: 6.10.1
Kernel Version: 6.17.8-300.fc43.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i7-10750H CPU @ 2.60GHz
Memory: 32 GiB of RAM (31.2 GiB usable)
Graphics Processor: NVIDIA GeForce RTX 2080 Super with Max-Q Design
ADDITIONAL INFORMATION
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