[okular] [Bug 506716] New: Smooth scrolling doesn't work on some mice

Filip bugzilla_noreply at kde.org
Mon Jul 7 12:48:38 BST 2025


https://bugs.kde.org/show_bug.cgi?id=506716

            Bug ID: 506716
           Summary: Smooth scrolling doesn't work on some mice
    Classification: Applications
           Product: okular
      Version First 25.04.3
       Reported In:
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: filip.kendes1 at gmail.com
  Target Milestone: ---

Created attachment 183037
  --> https://bugs.kde.org/attachment.cgi?id=183037&action=edit
showcase

SUMMARY
I have 2 mice. Razer Deathadder v3 and Logitech B100. Okular doesn't have
smooth scrolling when using Razer mouse, but it does have it when using
Logitech.

I daily drive Razer mouse and smooth scrolling works in other apps like
Dolphin, Firefox and Brave Browser

STEPS TO REPRODUCE
1. Open some PDF
2. Enable smooth scrolling 
3. Scroll - You might need to use multiple mice to reproduce

OBSERVED RESULT
Smooth scrolling doesn't work on some mice

EXPECTED RESULT
Smooth scrolling works always

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.4.2
KDE Frameworks Version: 6.15.0
Qt Version: 6.9.1
Kernel Version: 6.15.4-arch2-1 (64-bit)
Graphics Platform: Wayland

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