Bug 169029 - LibreCalc janky mouse scroll in larger windows, full screen worst (kf5 + wayland)
Summary: LibreCalc janky mouse scroll in larger windows, full screen worst (kf5 + wayl...
Status: RESOLVED DUPLICATE of bug 152911
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Calc (show other bugs)
Version:
(earliest affected)
25.8.2.2 release
Hardware: All All
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2025-10-23 23:06 UTC by Dan Dascalescu
Modified: 2025-10-25 07:41 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:

Attachments
Repro CSV file (75.56 KB, text/csv)
2025-10-23 23:06 UTC, Dan Dascalescu 		Details
Screencast (14.19 MB, video/webm)
2025-10-23 23:08 UTC, Dan Dascalescu 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Dan Dascalescu 2025-10-23 23:06:59 UTC 
Created attachment 203509 [details]
Repro CSV file

1. Open the attached scroll.csv file in LibreCalc.
2. Maximize the window
3. Scroll down by dragging the scrollbar thumb to the desired position (bottom of the scroll bar).

Scrolling this way through a rather small CVS file (500 rows, and even only column E from that file, and which fits the screen) is surprisingly slow *in full screen*.

It's reasonably fast in a smaller window, despite the column being clipped off screen. It's also fast to scroll using the keyboard.

Version: 25.8.2.2 (X86_64, AppImage)
Build ID: d401f2107ccab8f924a8e2df40f573aab7605b6f
CPU threads: 20; OS: Linux 6.14; UI render: default; VCL: kf5 (cairo+wayland)
Locale: en-US (en_US.UTF-8); UI: en-US
Calc: threaded
Comment 1 Dan Dascalescu 2025-10-23 23:08:08 UTC 
Created attachment 203510 [details]
Screencast

The larger the window gets, the more janky the scroll.
Comment 2 m_a_riosv 2025-10-24 22:36:20 UTC 
Can not reproduce with
Version: 25.8.2.2 (X86_64)
Build ID: d401f2107ccab8f924a8e2df40f573aab7605b6f
CPU threads: 16; OS: Windows 11 X86_64 (build 26200); UI render: Skia/Raster; VCL: win
Locale: en-US (es_ES); UI: en-US
Calc: threaded
Comment 3 Telesto 2025-10-25 02:12:32 UTC 
Sounds like bug 152911
Comment 4 Buovjaga 2025-10-25 07:41:19 UTC 

*** This bug has been marked as a duplicate of bug 152911 ***