Bug 503036 - Information panel preview exhibits jarring scaling/resize animation when switching between files with different aspect ratios, regardless of global animation settings
Summary: Information panel preview exhibits jarring scaling/resize animation when swit...
Status: CONFIRMED
Alias: None
Product: dolphin
Classification: Applications
Component: panels: information (other bugs)
Version First Reported In: 25.03.90
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: Dolphin Bug Assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-04-20 01:40 UTC by Jwadow
Modified: 2025-04-21 17:50 UTC (History)
2 users (show)

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


Attachments
Video showing the bug, all animations in kdeglobal/dolphinrc are disabled. (1.80 MB, video/mp4)
2025-04-20 01:40 UTC, Jwadow
Details

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Description Jwadow 2025-04-20 01:40:28 UTC
Created attachment 180421 [details]
Video showing the bug, all animations in kdeglobal/dolphinrc are disabled.

STEPS TO REPRODUCE
1. Open Dolphin.
2. Ensure the Information Panel is visible (View -> Panels -> Information Panel or F11).
3. Ensure previews (e.g., for images) are enabled in the Information Panel settings.
4. Select a file with a preview (e.g., a landscape image). Observe the preview in the panel.
5. Immediately select another file with a preview that has a significantly different aspect ratio (e.g., a portrait image or a square one).

OBSERVED RESULT
The preview image widget in the Information Panel visibly and rapidly scales/resizes from the previous preview's dimensions/aspect ratio to the new one's. This creates a jarring visual "jump", "jitter" or animation effect that is independent of the global KDE/Qt animation settings.

EXPECTED RESULT
Ideally, the new preview image should appear instantly without any visible scaling animation or transition from the previous preview's dimensions. Alternatively, there should be a setting to disable this specific scaling effect, or it should respect the global `AnimationsEnabled=false` / `AnimationDurationFactor=0.0` settings in `kdeglobals`.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux (Using Cinnamon DE, not Plasma)
Qt Version: qt6-base 6.9.0-1

ADDITIONAL INFORMATION
- Standard methods to disable animations (`AnimationsEnabled=false`, `AnimationDurationFactor=0.0` in `~/.config/kdeglobals`) have been tried and do *not* affect this specific preview scaling behavior in the information panel.
- Attempting to set `AnimationDurationFactor=0` within the `[KDE]` section of `~/.config/dolphinrc` also had no effect on this behavior.
- The effect is visually distracting and uncomfortable, especially when browsing quickly through many files (like photos) with varying aspect ratios.
- Using Arch Linux with Cinnamon DE, Dolphin installed from official Arch repositories. Windowing system is X11.
Comment 1 John Kizer 2025-04-21 17:50:23 UTC
I can reproduce on Dolphin 25.04.0, thanks!