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[Launchpad Bug Tracker <1570533@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: gnome-terminal (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1570533

Title:
  wrong character width with Ubuntu Mono and replacement fonts in gnome-
  terminal:

Status in gnome-terminal package in Ubuntu:
  Confirmed

Bug description:
  I'm using Ubuntu Mono in gnome-terminal.  When displaying some unicode
  (non ascii) characters that are not in Ubuntu Mono and a fallback font
  is used, the spacing between the glyphs is wrong (too small).  The
  fallback characters are double width, but the next character is
  display after a single width, leading into overlapping characters.

  If I see this correctly, gnome-terminal is using libvte which is using
  pango to render text. I therefore checked how pango renders this with
  `pango-view --font="Ubuntu Mono 32" --markup --text='<span
  fallback="true">xxxxxxxxxxxxxxxxxxxxxxxxx&#13A▷C✚D⚑F↓G↑H..I☺J</span>'`
  and `pango-view --font="Ubuntu Mono 32" --markup --text='<span
  fallback="true">xxxxxxxxxxxxxxxxxxxxxxxxx&#13A▷C✚D⚑F↓G↑H..I☺J</span>'`
  . In both cases double with characters or "replacement boxes" are
  displayed and no overlapping occurs.

  If I use the "monospace" font, no overlapping occurs in gnome-
  terminal.

  Whose fault is this and how can it be fixed?

  
  I'm on Ubuntu 14.04.4 LTS, gnome-terminal's version is 3.6.2-0ubuntu1, tf-ubuntu-font-family 0.80-0ubuntu6 and everything is up to date.

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