https://bugs.documentfoundation.org/show_bug.cgi?id=166221
Bug ID: 166221
Summary: Severe Lag When Selecting or Editing Mixed RTL/LTR
Text in LibreOffice Writer
Product: LibreOffice
Version: 25.2.2.2 release
Hardware: All
OS: Linux (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Writer
Assignee: [email protected]
Reporter: [email protected]
Description:
I wrote a short paragraph in English using the default paragraph style,
left-to-right text direction and left alignment. I tried several fonts, but to
simplify the problem, I chose the popular Arial font, which also supports
Arabic. Then, I wrote a new short paragraph, after the previous one, in Arabic
using the same style, changing the text direction and alignment from right to
left. Then, I wrote a new third paragraph in English using the style of the
first paragraph. I didn't face any problems with the program's performance when
trying to select or edit text, whether it was a part of a paragraph, a full
paragraph, or even overlapping paragraphs (of course, when selecting the text).
However, when trying to write in a language like English, which is LTR, and
writing in a language like Arabic, which is RTL, in a single paragraph (Or
typing inside Arabic text with English text), the text in this paragraph is
very slow in terms of writing, editing, or even selecting text.
I was using old version of LibreOffice (24.2.7.2 (X86_64)) and tried to update
to latest stable one (25.2.2.2), but nothing is fixed.
Steps to Reproduce:
1.Write any English or Arabic paragraph.
2.Try to write inside the same paragraph in another language that the paragraph
was written.
3.Try selecting or editing this paragraph.
Actual Results:
Writing, editing, or selecting the text is so laggy.
Expected Results:
Writing, editing, or selecting the text must be smooth.
Reproducible: Always
User Profile Reset: Yes
Additional Info:
Version: 25.2.2.2 (X86_64) / LibreOffice Community
Build ID: 520(Build:2)
CPU threads: 32; OS: Linux 6.11; UI render: default; VCL: gtk3
Locale: en-US (en_US.UTF-8); UI: en-US
Ubuntu package version: 4:25.2.2-0ubuntu0.24.04.1~lo1
Calc: threaded
OS: Linux Ubuntu 24.04.1 LTS
CPU: Intel(R) Core(TM) i9-14900HX
GPU: Nvidia GeForce RTX 4060 Max-Q / Mobile
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