Bug Hunting Session
Bug 46185 - VIEWING: Display of Non-Printing Characters is Wrong after Alignment Change
Summary: VIEWING: Display of Non-Printing Characters is Wrong after Alignment Change
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Writer (show other bugs)
(earliest affected)
3.5.0 release
Hardware: All All
: low minor
Assignee: Not Assigned
Whiteboard: BSA
Depends on:
Blocks: Formatting-Mark
  Show dependency treegraph
Reported: 2012-02-16 09:25 UTC by Harald Koester
Modified: 2019-01-16 11:28 UTC (History)
3 users (show)

See Also:
Crash report or crash signature:


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Description Harald Koester 2012-02-16 09:25:48 UTC
Problem description: 

[1] Open new text document.
[2] Display Non-printing Characters.
[3] Insert some empty paragraphs.
[4] Insert a line break (Shift+Enter).
[5] Scroll down document until the first empty paragraph is no longer visible.
[6] Change the alignment of the last paragraph to right-aligned. The characters for “Line Break” and “End of Paragraph” are no longer visible. Expected: Visible at the end of the line !!
[7] Scroll down document until the last paragraph is above the working area and scroll back again.(first paragraph still above working area) Now the missed characters are visible.
[8] Change the alignment back to left-aligned: Now both characters are visible twice, at the beginning and at the end of the line. Expected: Visible only at the beginning of the line !!

If you format your page with 2 columns, the bug exists for both. By the way: If there is no space between columns, right aligned non-printing characters of the left column are visible not at all. Also a bug?

Bug already exists similar in Version 3.4.x.
Browser: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv: Gecko/20120128 Firefox/3.6.26
Comment 1 Patrik Nilsson 2012-03-29 04:16:37 UTC
As of LibreOffice (Build ID: dc9775d-05ecbee-0851ad3-1586698-727bf66) you can't get any non-printing characters to be displayed.

This worked in a previous release I used. I always use this function, so this is annoying.
Comment 2 sasha.libreoffice 2012-05-21 05:03:25 UTC
Thanks for bugreport
I am not sure that it is the same bug, but reproducible in 3.5.3 on Fedora 64 bit
Steps to reproduce:
0. Open new text document.
1. Display Non-printing Characters.
2. Press Ctrl-R
Expected: end-of-paragraph remains visible
Actually: disappears. But appears after adding new paragraph or scrolling page
Comment 3 Patrik Nilsson 2012-05-22 02:04:59 UTC
I use Debian 6.0.4 and after upgrading Libreoffice this function is completely gone visually. The button and menu settings still are there, but I have never seen any effect of them, not even for a blink of an eye (i.e. during redraw).

Sasha: I can't reproduce your effect at all.
Comment 4 sasha.libreoffice 2012-05-22 03:32:20 UTC
@ Patrik Nilsson
As I can understand:
1. Bug from comment 2 not reproducible
2. Bug from initial description still exist
I right understand or no?
Comment 5 Patrik Nilsson 2012-05-22 03:45:51 UTC

1) Bug from 2 can't be reproduced on Debian.
2) The initial bug still exists and got worse in the latest release. Now *no* non-printing characters are displayed.
Comment 6 sasha.libreoffice 2012-05-22 04:22:55 UTC
May be because of difference in Video and desktop. In my case it is Intel and KDE, also Windows 7 with Intel video.
Comment 7 Harald Koester 2012-06-23 09:45:34 UTC
Bug of comment 2 reproducible with Win 7 and LO
Comment 8 Alexandr 2014-07-14 18:25:34 UTC
I reproduce both initial bug and comment 2 with LibreOffice on Debian Jessie x86_64.
I belive this issue does not make work really harder in most cases, because the nonprinting characters return to normal state after scrolling. Hence I decrease severity.
Comment 9 QA Administrators 2015-07-18 17:43:10 UTC Comment hidden (obsolete)
Comment 10 Alexandr 2015-08-09 15:56:27 UTC
Reproducible with LibreOffice 4.4.5 and 5.0.0 on Debian Jessie.
Comment 11 QA Administrators 2016-09-20 10:21:31 UTC Comment hidden (obsolete)
Comment 12 Patrik Nilsson 2016-09-20 17:26:09 UTC
Does not exist in:

Build ID: 1:5.1.4-0ubuntu1
CPU Threads: 4; OS Version: Linux 4.4; UI Render: default; 
Locale: en-US (en_US.UTF-8)
Comment 13 Harald Koester 2016-10-05 15:20:19 UTC
Checked with version 5.2.2 with Win7. Bug according initial description still exists in this version. Hence I set status back to NEW.
Comment 14 QA Administrators 2018-06-08 02:47:35 UTC Comment hidden (obsolete)
Comment 15 Harald Koester 2018-06-08 21:25:34 UTC
Bug respective initial report and comment 2 still exists (64 bit, Win 10).
Comment 16 Karsten 2019-01-16 11:28:24 UTC Comment hidden (obsolete)