Bug 508452 - Mousewheel scrolls one line per scroll
Summary: Mousewheel scrolls one line per scroll
Status: RESOLVED INTENTIONAL
Alias: None
Product: dolphin
Classification: Applications
Component: view-engine: details mode (other bugs)
Version First Reported In: 25.08.0
Platform: Fedora RPMs Linux
: NOR normal
Target Milestone: ---
Assignee: Dolphin Bug Assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-08-19 08:15 UTC by Attila
Modified: 2025-09-01 09:30 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:

Attachments
Add an attachment

Note You need to log in before you can comment on or make changes to this bug.
Description Attila 2025-08-19 08:15:49 UTC 
SUMMARY
The mousewheel scrolls one line per scroll instead of three lines. Dolphin suddenly seems to ignore the global settings. The panel view places works as expected. The mousewheel scrolls three lines per scroll.

STEPS TO REPRODUCE
1. Open Dolphin
2. Switch to "details mode"
3. Use the scrollwheel to scroll up and down

OBSERVED RESULT
The mousewheel scrolls one line per scroll

EXPECTED RESULT
The mousewheel should scroll three lines instead of one line.

SOFTWARE/OS VERSIONS
Operating System: Fedora Linux 42
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.1
Kernel Version: 6.15.9-201.fc42.x86_64 (64-bit)
Graphics Platform: X11
Graphics Processor: Intel® UHD Graphics 770
Comment 1 Felix Ernst 2025-09-01 09:30:46 UTC 
This is partially intentional. The scroll distance is not supposed to depend on the zoom factor so when you are zoomed and the rows are large, less than three lines are scrolled.

If we always scrolled three lines no matter the zoom value the scroll distance would be different when switching from one folder to the other.

See https://bugs.kde.org/show_bug.cgi?id=508290 for the bug report about the new scroll speed being slower than before. Thanks.