Bug 121684 - Scroll speed unmanageably fast when using touchpad in windows
Summary: Scroll speed unmanageably fast when using touchpad in windows
Status: RESOLVED DUPLICATE of bug 119745
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
(earliest affected) release
Hardware: x86-64 (AMD64) Windows (All)
: medium normal
Assignee: Not Assigned
Depends on:
Reported: 2018-11-23 21:35 UTC by Lobotomik
Modified: 2019-01-16 22:44 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:


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Description Lobotomik 2018-11-23 21:35:35 UTC
A two-finger scroll in the touchpad in other applications moves the screen contents smoothly up and down in a nice, controlable fashion.

However, with Libreoffice Writer 6.1, one millimeter or two are enough to send the screen contents shooting up or down in an uncontrollable manner. The movement that makes, say, Edge scroll by one line will make LibreOffice Writer scroll by one screen, or more. 

Steps to Reproduce:
1. Open a long document with LibreOffice Writer
2. Do a two-finger scroll moving your fingers up and down on the trackpad just a little bit
3. Watch the text shoot up and down incredibly fast

Actual Results:
Text shoots up and down very, very fast

Expected Results:
The text should scroll at a reasonable speed, comparable with other programs.

Reproducible: Always

User Profile Reset: No

Additional Info:
Comment 1 Lobotomik 2018-11-23 21:38:13 UTC
I think this should be given high priority, as it makes Writer very hard to use on a laptop.
Comment 2 V Stuart Foote 2018-11-23 21:51:32 UTC
Can not confirm on Windows 10 Home 64-bit en-US with
Version: (x64)
Build ID: 86daf60bf00efa86ad547e59e09d6bb77c699acb
CPU threads: 4; OS: Windows 10.0; UI render: GL; 
Locale: en-US (en_US); Calc: CL

Lenovo flex4 Ideapad with Synaptics touchpad (5/9/2017 , driver), 2-finger scroll vertical or horizontal is clean Writer document or a Calc sheet.
Comment 3 Durgapriyanka 2018-11-26 01:22:28 UTC
Can not reproduce.

Build ID: 0c292870b25a325b5ed35f6b45599d2ea4458e77
CPU threads: 2; OS: Windows 6.1; UI render: default; 
Locale: en-US (en_US); Calc: group
Comment 4 Chiang Han 2018-11-29 08:27:31 UTC
Bug not reproducible in version

Version: (x64)
Build ID: 0f25a3c36f27fd51453b9a9115f236b83c143684
CPU threads: 4; OS: Windows 10.0; UI render: default; VCL: win; 
TinderBox: Win-x86_64@42, Branch:master, Time: 2018-11-27_20:06:55
Locale: zh-TW (zh_TW); UI-Language: en-US
Comment 5 Lobotomik 2018-11-29 10:13:10 UTC
The setup I have where it fails has these features, which may be related:

* 4K resolution
* Touch screen
* Nvidia GTX-1050 GPU

Could the touch screen be related? It doesn't behave with LibreOffice as it does with other applications. Dragging a finger on the contents in other applications scrolls the content around, whild in LibreOffice Writer it does block selection.

Or maybe the 4K resolution is related? LibreOffice has other issues with 4K, like tiny fonts in the menus, or jumbled menubar icons in some UI configurations. 

The Windows 10 scaling factor is set to 200% in my computer. I will try to set it to 100% and see how it goes.

Any suggestions that could be helpful to locate the root of the issue?
Comment 6 V Stuart Foote 2019-01-16 22:44:19 UTC

*** This bug has been marked as a duplicate of bug 119745 ***