Wrong rendering of Arabic characters

Bug #119588 reported by Epíleg
14
Affects Status Importance Assigned to Milestone
Ubuntu
Fix Released
Medium
Unassigned

Bug Description

Applications using default font monospace, Arabic characters are not being rendered properly.
Happens on gedit and thunderbird in monospace mode.

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Áron Sisak (asisak) wrote :

Thanks for taking the time to report this bug. Unfortunately we can't fix it, because your description didn't include enough information. You may find it helpful to read "How to report bugs effectively" <http://www.chiark.greenend.org.uk/~sgtatham/bugs.html>. We'd be grateful if you would then provide a more complete description of the problem.

We have instructions on debugging some types of problems. <http://wiki.ubuntu.com/DebuggingProcedures> Thanks!

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Epíleg (epileg) wrote : Re: [Bug 119588] Re: Wrong rendering of Arabic characters

OS: Ubuntu Feisty (7.04)

In Gedit program, when typing Arabic characters (using SCIM or pasting them), they are not shown and printed properly.
If the fonts setting in Gedit is changed from "Monospace" font to "Sans", the problem disappear (Monospace is the default mono-space font in Ubuntu Gnome).

This problem also happen with Mozilla Thunderbird (both problems, showing and printing), when typing Arabic characters using SCIM or pasting them in the mail editor in "Fixed width" mode, and disappear in "Variable width" mode.

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Sebastien Bacher (seb128) wrote :

Could you attach a screenshot of the bug?

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Epíleg (epileg) wrote :

En/na Sebastien Bacher ha escrit:
> Could you attach a screenshot of the bug?
>

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Epíleg (epileg) wrote :

Here I send You 1/2 screenshot.

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Epíleg (epileg) wrote :

Here I send You 2/2 screenshot.

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Áron Sisak (asisak) wrote :

We need some Arabic font expert here.

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Philip Muškovac (yofel) wrote :

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering is this still an issue for you? Thanks in advance.

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Jacques Luder (j-luder) wrote :

I am not a Arabic expert but i have some informations:
In memory a Arabic word is as usual "Stand alone letter" separated by a space. But on screen a word is letters "ligatured". We cannot read a text who use "stand alone" letters as other language. In a Linux machine the job is done by pango who choice the glyph of the ligatured letter depending of place inside the word, start, middle, end and letter before and after. There is 7 rules to find the good one. The glyph used is generally just a part of the "stand alone letter" so an Arabic word seem very short.

So write Arabic using monospace letter seem just ... not possible.

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Epíleg (epileg) wrote :

well, arabic sentences in gedit using monospace font is now shown properly, so for me the problem is solved.

Many thank.

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Philip Muškovac (yofel) wrote :

This bug report is being closed due to your last comment regarding this being fixed with an update. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.

Changed in ubuntu:
status: Incomplete → Fix Released
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