Bug 125802

Summary:	Paragraphs and header footers with complex font mix (CJK and Western) poorly performing scroll and page movements
Product:	LibreOffice	Reporter:	V Stuart Foote <vsfoote>
Component:	Writer	Assignee:	Not Assigned <libreoffice-bugs>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	mikekaganski, noelgrandin, vsfoote, xiscofauli
Priority:	medium
Version:	6.4.0.0.alpha1+
Hardware:	All
OS:	All
See Also:	https://bugs.documentfoundation.org/show_bug.cgi?id=125624
Whiteboard:
Crash report or crash signature:		Regression By:
Bug Depends on:
Bug Blocks:	108075, 113396

Description V Stuart Foote 2019-06-08 14:47:48 UTC

Ongoing from bug 125624 working with attachment 151516 [details] pagination with paragraphs and headers/footers composed of mixed CJK and Western text runs performs poorly. The UI will stop responding to scroll and page motions, and the <Ctrl>+G "Go to page" dialog will stop responding.  Actual page composition becomes corrupted.

Changing zoom level does not clear the corrupt page layout. Nor does changing between view modes (Single page, multi-page, book view).

Pagination on initial opening is good, but advancing into the document (scroll or page dn) and then backing up starts to degrade.

Comment 1 V Stuart Foote 2019-06-08 14:53:21 UTC

On Windows 10 Home 64-bit en-US with
Windows 10 Home 64-bit en-US (1809) with TB39
Version: 6.4.0.0.alpha0+ (x86)
Build ID: 9870ff897f088563426bee9567dd9cb722c2b929
CPU threads: 4; OS: Windows 10.0; UI render: GL; VCL: win; 
Locale: en-US (en_US); UI-Language: en-US
Calc: threaded

Comment 2 QA Administrators 2021-06-09 03:47:35 UTC Comment hidden (obsolete)

Dear V Stuart Foote,

To make sure we're focusing on the bugs that affect our users today, LibreOffice QA is asking bug reporters and confirmers to retest open, confirmed bugs which have not been touched for over a year.

There have been thousands of bug fixes and commits since anyone checked on this bug report. During that time, it's possible that the bug has been fixed, or the details of the problem have changed. We'd really appreciate your help in getting confirmation that the bug is still present.

If you have time, please do the following:

Test to see if the bug is still present with the latest version of LibreOffice from https://www.libreoffice.org/download/

If the bug is present, please leave a comment that includes the information from Help - About LibreOffice.

If the bug is NOT present, please set the bug's Status field to RESOLVED-WORKSFORME and leave a comment that includes the information from Help - About LibreOffice.

Please DO NOT

Update the version field
Reply via email (please reply directly on the bug tracker)
Set the bug's Status field to RESOLVED - FIXED (this status has a particular meaning that is not
appropriate in this case)

If you want to do more to help you can test to see if your issue is a REGRESSION. To do so:
1. Download and install oldest version of LibreOffice (usually 3.3 unless your bug pertains to a feature added after 3.3) from https://downloadarchive.documentfoundation.org/libreoffice/old/

2. Test your bug
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4a. If the bug was present with 3.3 - set version to 'inherited from OOo';
4b. If the bug was not present in 3.3 - add 'regression' to keyword

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Warm Regards,
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MassPing-UntouchedBug

Comment 3 V Stuart Foote 2021-06-09 13:39:31 UTC

With attachment 151516 [details] and STR of comment 0, no longer seeing a degraded response to mouse wheel scrool, sidebar Navigator page, or scrollbar movements. Go-to page movements are crisp. Keyboard PgDn/PgUp are acceptable, with some change in scroll speed depending on the content of the page.

=> WFM