[Bug 1310017] Re: freetype 2.5.x broke rendering of the default Korean font

[Jinkyu Yi]

Dear, Ubuntu SRU & Ubuntu Sponsors team, please take a look and see if this bug can go on SRU process.
This bug doesn't destroy system partition, not causing kernel panic, not a security problem, only Korean users are affected.
However, this is critical to users who read and write Korean characters a lot on Ubuntu.
I know i18n is considered as low priority, but please consider fix this bug and land in Trusty.
Please don't make Korean users leave Ubuntu. Read characters with incorrect rendering for up to 5 years sounds terrible.

p.s This is my first time to request SRU verification. Please let me
know if I did something wrong.

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https://bugs.launchpad.net/bugs/1310017

Title:
  freetype 2.5.x broke rendering of the default Korean font

Status in FreeType: High Quality Font Rendering:
  Unknown
Status in “freetype” package in Ubuntu:
  Confirmed

Bug description:
  * Impact:
  The rendering of Ubuntu's default Korean font(NanumGothic) is incorrect.
  The most seen sympton is character's upmost part is not shown and it can make impossible to read or confused with different character(ex: 줄 & 출).

  * Test case:
  Copy and paste '를' to gedit.
  Open gucharmap, find 를 (U+B97C), and see character in [Character Details] tab.
  Compare it. Upmost horizontal line should apear properly in gedit like as gucharmap's detailed view.

  Change account name to '를' and logout.
  See account name show properly in greeter.

  * Regression potential:
  check that text rendering is fine in the greeter and session, using different fonts and locales

  -------

  ubuntu-settings overrides org.gnome.settings-
  daemon.plugins.xsettings.hinting to "slight" , while GNOME default was
  "medium". This broke rendering of NanumGothic, the default font for
  Korean language, in default installation.

  I have no idea on what ground this value has been overridden, but it
  critically broke Korean language desktop.

  screenshots from #1303572

  14.04 https://launchpadlibrarian.net/172899667/1404_font.jpg

  12.04
  https://bugs.launchpad.net/ubuntu/+bug/1303572/+attachment/4084748/+files/1204_font.jpg

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