Bug 121539 - Laggy scrolling & zooming in/out
Summary: Laggy scrolling & zooming in/out
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Calc (show other bugs)
(earliest affected)
Hardware: All All
: medium minor
Assignee: Not Assigned
Depends on:
Blocks: Zoom Scrolling-PageUpDown
  Show dependency treegraph
Reported: 2018-11-20 08:43 UTC by Telesto
Modified: 2022-06-01 20:25 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:

Example file (81.31 KB, application/vnd.oasis.opendocument.spreadsheet)
2018-11-20 08:43 UTC, Telesto

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Description Telesto 2018-11-20 08:43:27 UTC
Laggy scrolling & zooming in/out

Steps to Reproduce:
1. Open the attached file
2. Drag the vertical slider up down and/or zoom in/out

Actual Results:

Expected Results:
A bit smoother as before in 6.1

Reproducible: Always

User Profile Reset: No

Additional Info:
Build ID: d71ea82055a6a304493c7eaa90809a348e23784d
CPU threads: 4; OS: Windows 6.3; UI render: default; VCL: win; 
TinderBox: Win-x86@42, Branch:master, Time: 2018-11-19_03:25:07
Locale: nl-NL (nl_NL); UI-Language: en-US
Calc: CL
Comment 1 Telesto 2018-11-20 08:43:40 UTC
Created attachment 146811 [details]
Example file
Comment 2 Xavier Van Wijmeersch 2018-11-20 09:26:58 UTC
confirm with

Build ID: 37455f8f0109ac838e2dde64118d7eb736958526
CPU threads: 8; OS: Linux 4.19; UI render: default; VCL: kde4; 
Locale: nl-BE (en_US.UTF-8); UI-Language: en-US
Calc: threaded
Comment 3 Telesto 2018-11-20 09:53:06 UTC
Note: The document contains lots of direct formatting & has never been super fast. So the scope of this bug is limited to additional choppiness.. Which is hard to measure of course
Comment 4 Oliver Grimm 2019-07-09 09:20:57 UTC
yes, confirmed here: zooming and scrolling is a bit laggy
--> confirmed; minor

Build-ID: 1:6.1.5-3
CPU-Threads: 2; BS: Linux 4.19; UI-Render: Standard; VCL: gtk3; 
Gebietsschema: de-DE (de_DE.utf8); Calc: group threaded
Comment 5 QA Administrators 2021-07-09 04:02:16 UTC Comment hidden (obsolete)
Comment 6 Rafael Lima 2022-06-01 20:25:34 UTC
Hi Telesto,

I have just tested your sample file using LO 7.3.3 and scrolling with the vertical slider is butter smooth.

Can we close this as WFM ?

System info:
Version: / LibreOffice Community
Build ID: 30(Build:2)
CPU threads: 12; OS: Linux 5.13; UI render: default; VCL: kf5 (cairo+xcb)
Locale: pt-BR (pt_BR.UTF-8); UI: en-US
Ubuntu package version: 1:7.3.3~rc2-0ubuntu0.21.10.1~lo1
Calc: threaded