Bug 120810 - Extreme lag from using Japanese characters with English letters
Summary: Extreme lag from using Japanese characters with English letters
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:
Blocks: CJK-Japanese
  Show dependency treegraph
Reported: 2018-10-23 04:10 UTC by ashsuede
Modified: 2019-07-18 02:50 UTC (History)
1 user (show)

See Also:
Crash report or crash signature:
Regression By:


Note You need to log in before you can comment on or make changes to this bug.
Description ashsuede 2018-10-23 04:10:33 UTC
I'm not sure if it has anything to do with the fonts mixing or just the Japanese font itself. But, I have written lots of notes in equal amounts of Japanese and English in the same document. Unlike complete English text which scrolls and types smoothly, 1k or less of Japanese characters causes tons of lag from both typing, scrolling, and document uploading. It becomes impossible to use the processor but not the UI itself. i.e. using menus and clicking buttons.
Comment 1 Xisco Faulí 2018-12-18 16:13:18 UTC
Thank you for reporting the bug. To be certain the reported issue is not
related to corruption in the user profile, could you please reset your
Libreoffice profile ( https://wiki.documentfoundation.org/UserProfile ) and

I have set the bug's status to 'NEEDINFO'. Please change it back to
'UNCONFIRMED' if the issue is still present
Comment 2 QA Administrators 2019-06-17 02:48:01 UTC Comment hidden (obsolete)
Comment 3 QA Administrators 2019-07-18 02:50:31 UTC
Dear ashsuede,

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