[Bug 1595414] Re: Awful system-wise generic selection for CJK

[Mingye Wang]

Well, I am using Firefox, Firefox 47.0+build3-0ubuntu0.14.04.1.

With UKai installed, as far as I can retell, some of the Chinese content
(usernames in Twitter notifications) are still displayed in Droid Sans,
while tweet bodies are mostly displayed in UKai. I have just did some
extra 'inspect element' work on these differences, and found that
Twitter actually applies results of its own language detection on tweet
bodies as html 'lang' attributes. Many Simplified Chinese text tend to
be recognized as Japanese, so I am able to show you matching results
from different languages.

ja: good (mis-recognized zh text)
en: good (Twitter UI)
zh: UKai

`LC_ALL=zh_CN.UTF-8 fc-match -a 'Sans' | head` shows UKai CN in the
fourth place following Droid Sans Fallback, UMing CN and UMing HK, so
yeah it sounds like a Firefox....... (But are there any good browsers
left?)

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https://bugs.launchpad.net/bugs/1595414

Title:
  Awful system-wise generic selection for CJK

Status in fonts-arphic-ukai package in Ubuntu:
  New
Status in fonts-arphic-uming package in Ubuntu:
  New
Status in language-selector package in Ubuntu:
  New
Status in fonts-arphic-ukai source package in Trusty:
  New
Status in fonts-arphic-uming source package in Trusty:
  New
Status in language-selector source package in Trusty:
  New

Bug description:
  In https://bazaar.launchpad.net/~ubuntu-branches/ubuntu/wily/fonts-
  arphic-ukai/wily/revision/6, UMing and UKai are set as generics for
  fonts. However, this set of generics is completely intolerable --
  setting UKai as a generic is like setting Zapfino and/or Comic Sans as
  a system-wise generic, while UMing as a normal (just a bit thin) serif
  sounds a bit better. This yields terrible results on non-Chinese
  systems with non-Chinese lang-attributed websites, like Twitter, on
  Ubuntu 14.04 LTS after installing Chinese language support which
  includes the two arphic fonts mentioned in this report.

  This problem is similar to
  https://bugs.freedesktop.org/show_bug.cgi?id=20911, a long-standing
  system-global fontconfig non-latin fallback problem. See also bug
  #1560548 where these generic settings are considered as 'redundant'
  and proposed for deletion. I have mentioned a third-person report
  about such selection in #1560548 previously, but I have just
  reproduced this bug by myself by installing zh-cn support by mistake.

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