Bug 153443 - Scrolling stutters in Writer as soon as a page is filled with characters
Summary: Scrolling stutters in Writer as soon as a page is filled with characters
Status: RESOLVED INSUFFICIENTDATA
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
Version:
(earliest affected)
7.5.0.3 release
Hardware: x86-64 (AMD64) macOS (All)
: medium normal
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Scrolling-PageUpDown
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Reported: 2023-02-07 15:17 UTC by gulpen
Modified: 2023-10-26 03:15 UTC (History)
2 users (show)

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Crash report or crash signature:


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Description gulpen 2023-02-07 15:17:32 UTC
Description:
As soon as a Writer document starts to fill up with characters, scrolling becomes super slow / stuttery. Thus, scrolling through a long document is very painful. And the faster I scroll, the more it stutters - so skipping multiple pages in a second, I only see about 1 fps. I jumped from LibreOffice 7.0 to 7.5 today, and noticed this difference immediately, working in the same document (also tried this with new document and random text, can repeat it). I did *not* have this same issue with 7.0.

MacOS 12.5.1
1,6 GHz Dual-Core Intel Core i5
Intel HD Graphics 6000 1536 MB


Steps to Reproduce:
1. Add a healthy amount of characters on a page or multiple pages
2. Start scrolling.


Actual Results:
Very slow scrolling.

Expected Results:
Smooth scrolling


Reproducible: Always


User Profile Reset: Yes

Additional Info:
Smooth scrolling
Comment 1 Dieter 2023-02-23 08:12:42 UTC
Gulpen, I don't use macOS, so I can't test. Perhaps you can retest with LO 7.4, to narrow down the problem to a certain release.

Further question: Does it only happen in writer or also in other components?
Comment 2 Buovjaga 2023-03-28 11:33:56 UTC
Your issue sounds like a performance problem, but recently there was a macOS scrolling-related fix: bug 152406. It would be interesting to try with an unstable build: https://dev-builds.libreoffice.org/daily/master/current.html

If the problem remains, you might investigate it through bibisecting:
https://wiki.documentfoundation.org/QA/Bibisect/macOS
https://wiki.documentfoundation.org/QA/Bibisect

Set to NEEDINFO.
Change back to UNCONFIRMED, if the problem persists. Change to RESOLVED WORKSFORME, if the problem went away.
Comment 3 QA Administrators 2023-09-25 03:14:04 UTC Comment hidden (obsolete)
Comment 4 QA Administrators 2023-10-26 03:15:01 UTC
Dear gulpen,

Please read this message in its entirety before proceeding.

Your bug report is being closed as INSUFFICIENTDATA due to inactivity and
a lack of information which is needed in order to accurately
reproduce and confirm the problem. We encourage you to retest
your bug against the latest release. If the issue is still
present in the latest stable release, we need the following
information (please ignore any that you've already provided):

a) Provide details of your system including your operating
   system and the latest version of LibreOffice that you have
   confirmed the bug to be present

b) Provide easy to reproduce steps – the simpler the better

c) Provide any test case(s) which will help us confirm the problem

d) Provide screenshots of the problem if you think it might help

e) Read all comments and provide any requested information

Once all of this is done, please set the bug back to UNCONFIRMED
and we will attempt to reproduce the issue. Please do not:

a) respond via email 

b) update the version field in the bug or any of the other details
   on the top section of our bug tracker

Warm Regards,
QA Team

MassPing-NeedInfo-FollowUp