Bug 480823

Summary: shift-mouse scroll should scroll left/right
Product: [Applications] okular Reporter: Steve Kelem <steve>
Component: generalAssignee: Okular developers <okular-devel>
Status: RESOLVED DUPLICATE    
Severity: wishlist CC: gerrit.huebbers, sincero
Priority: NOR    
Version First Reported In: 23.08.1   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Steve Kelem 2024-02-04 03:22:49 UTC 
SUMMARY
***
In many programs Control-Mouse-Scroll scrolls up and down. Shift-Mouse-Scroll scrolls left/right. Okular uses both Control-Mouse-Scroll and Shift-Mouse-Scroll to scroll up and down.
***


STEPS TO REPRODUCE
1. Press Shift-Mouse-Scroll and watch the screen scroll up and down.
2. Press Control-Mouse-Scroll and watch the screen scroll up and down.

OBSERVED RESULT
Both keyboard/mouse actions do the same thing.

EXPECTED RESULT
Scrolling left/right is important too. Please remap Shift-Mouse-Scroll to scroll left/right.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: Ubuntu 23.10
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Comment 1 sincero 2025-10-29 17:51:58 UTC 
In fact, horizontal scrolling is available through Alt+mouse wheel, but this isn’t listed in the “Configure Keyboard Shortcuts” dialog. It needs to be. Horizontal scrolling with Shift+wheel is totally standard, many people will have it in their muscle memory, and it’s terrible for one application to insist on doing it differently.

The very least would be to make it configurable, and the default should absolutely be Shift, not Alt.
Comment 3 sincero 2025-10-29 17:56:36 UTC 

*** This bug has been marked as a duplicate of bug 384695 ***