Bug 82930 - CJK: "TakaoPGothic" font disappears at some zoom factors in vertical text
Summary: CJK: "TakaoPGothic" font disappears at some zoom factors in vertical text
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
(earliest affected) release
Hardware: Other Linux (All)
: medium normal
Assignee: Not Assigned
Keywords: preBibisect, regression
Depends on:
Blocks: CJK Vertical-Text
  Show dependency treegraph
Reported: 2014-08-22 02:25 UTC by Matthew Francis
Modified: 2023-12-04 03:16 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:

Video of bug (211.29 KB, video/mp4)
2014-08-22 02:26 UTC, Matthew Francis
Sample document (9.17 KB, application/vnd.oasis.opendocument.text)
2014-08-22 02:26 UTC, Matthew Francis

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Description Matthew Francis 2014-08-22 02:25:48 UTC
Observed on:
  Ubuntu 14.04 / LO master
  Fedora 20 / LO

(Fedora doesn't come with the Takao fonts, but they can be installed from
http://rpm.pbone.net/index.php3/stat/4/idpl/23803159/dir/fedora_19/com/takao-fonts-003.02.01-11.1.noarch.rpm.html )

At a zoom factor of 454-460%, 12 point TakaoPGothic vertical text disappears completely. See attached video and document

The state of vertical text in general isn't that great at the moment, so this could be another bug in that category, or just possibly something in fontconfig etc.
Comment 1 Matthew Francis 2014-08-22 02:26:24 UTC
Created attachment 105070 [details]
Video of bug
Comment 2 Matthew Francis 2014-08-22 02:26:57 UTC
Created attachment 105071 [details]
Sample document
Comment 3 Yousuf Philips (jay) (retired) 2014-09-06 12:31:39 UTC
Confirmed in 4.2.6 and master that at 454% the text is invisible. This is a regression as this doesnt happen in 3.3.0.
Comment 4 Matthew Francis 2015-02-13 07:36:11 UTC
This is a regression before the start of the 43all bibiset repository - setting Whiteboard:preBibisect
Comment 5 Robinson Tryon (qubit) 2015-12-14 05:40:02 UTC Comment hidden (obsolete)
Comment 6 QA Administrators 2017-01-03 19:49:03 UTC Comment hidden (obsolete)
Comment 7 QA Administrators 2019-12-03 14:19:44 UTC Comment hidden (obsolete)
Comment 8 QA Administrators 2021-12-03 04:32:05 UTC Comment hidden (obsolete)
Comment 9 QA Administrators 2023-12-04 03:16:27 UTC
Dear Matthew Francis,

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.

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