[Bug 1275971] Re: Dejavu sans bold font broken on GREEK CAPITAL LETTER DELTA

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On 2014-02-03T11:18:40+00:00 Sergio Callegari wrote:

Created attachment 93268
Test pdf document

Experiencing an issue with GREEK CAPITAL LETTER DELTA U+0394.

Char appears fine on screen in most applications (working on Ubuntu
13.10), e.g. libreoffice, okular, etc.

However char appears badly in other applications (acroread for linux,
ghostscript based viewers) and most important cannot be properly printed
on postscript printers, where the profile of the Delta gets completely
filled with black ink.

In the attachment, please find a minimal pdf doc showing the issue, a
ghostscript based rendering with the issue and a photo of the printed
doc.

Problem is severe, because on most Linux distros most apps substitute
DejaVu Sans for greek letters on all fonts that do not include them.
This means that on linux, most docs including bold greek letters in a
sans font do not print fine.

Reply at: https://bugs.launchpad.net/ubuntu/+source/fonts-
dejavu/+bug/1275971/comments/0

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On 2014-02-03T11:19:18+00:00 Sergio Callegari wrote:

Created attachment 93269
Demo rendering of pdf file via ghostscript

Reply at: https://bugs.launchpad.net/ubuntu/+source/fonts-
dejavu/+bug/1275971/comments/1

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On 2014-02-03T11:21:30+00:00 Sergio Callegari wrote:

Created attachment 93270
Doc printed on a postscript printer (HP 4100)

Reply at: https://bugs.launchpad.net/ubuntu/+source/fonts-
dejavu/+bug/1275971/comments/2

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On 2014-02-03T11:22:23+00:00 Sergio Callegari wrote:

One more note:

Bug exists both with 2.33 version of the fonts (shipped with ubuntu
13.10) and with 2.34.

Reply at: https://bugs.launchpad.net/ubuntu/+source/fonts-
dejavu/+bug/1275971/comments/3

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On 2014-02-03T20:47:43+00:00 Nocturnaldreamer wrote:

I have recently committed a fix for this bug, could you please check if
the problem persists with the most recent snapshot at
http://dejavu.sourceforge.net/snapshots/ ?

Reply at: https://bugs.launchpad.net/ubuntu/+source/fonts-
dejavu/+bug/1275971/comments/4

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On 2014-02-03T22:37:40+00:00 Sergio Callegari wrote:

Thanks. Seems fixed at least on screen (tested with gs and acroread).
Please let me have another day to test on postscript printers too before
closing.

Reply at: https://bugs.launchpad.net/ubuntu/+source/fonts-
dejavu/+bug/1275971/comments/5


** Changed in: dejavu-fonts
       Status: Unknown => Confirmed

** Changed in: dejavu-fonts
   Importance: Unknown => High

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https://bugs.launchpad.net/bugs/1275971

Title:
  Dejavu sans bold font broken on GREEK CAPITAL LETTER DELTA

Status in DejaVu Fonts:
  Confirmed
Status in “fonts-dejavu” package in Ubuntu:
  Triaged

Bug description:
  Font dejavu sans bold, as distributed in fonts-dejavu-core.deb
  incorrectly renders some chars and notably GREEK CAPITAL LETTER DELTA
  (U+0394).

  Character is misrendered in acroread, by ghostscript and when printed
  to most postscript printers. Misrendering includes total or partial
  fill of the inside of the delta symbol.

  Issue is nasty, because on ubuntu the font configuration is such that
  whenever one requires a greek letter on a sans font that does not
  include the greek gliphs, dejavu sans is automatically substituted.

  The saucy package is affected (2.33t+svn...)
  The package that is currently in trusty is also affected (2.34)

  Issue is known to the dejavu fonts developers and fixed in snapshot
  140118

  Please consider for a SRU, or at least update the trusty package (that
  is installable in saucy).

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