I found a solution for the display of Japanese text that works on my computer from this blog entry (Japanese): http://blog.minawa.net/2011/10/hululinux.html
It seems that the Flash plugin refers to ttf-kochi-mincho, a font that no longer is shipped with Ubuntu. Installing it will fix the display issue instantly. In a terminal, type: sudo apt-get install ttf-kochi-mincho Now, Kochi is a rather ugly font for a lot of people. Using a different font requires a bit of hacking, you have to overwrite ttf-kochi-mincho with something else. In this case we'll use Takao PGothic, one of the default Japanese fonts in Ubuntu. In a terminal, type: sudo cp /usr/share/fonts/truetype/takao/TakaoPGothic.ttf /usr/share/fonts/truetype/kochi/kochi-mincho-subst.ttf You can replace 'TakaoPGothic.ttf' with any Japanese font you like. Right now, I'm using one called 'Motoya L Cedar.' -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to language-selector in Ubuntu. https://bugs.launchpad.net/bugs/207198 Title: Adobe Flash Player 9 and 10 displays CJK text incorrectly Status in Ubuntu Translations: Fix Released Status in “flashplugin-nonfree” package in Ubuntu: Incomplete Status in “fontconfig” package in Ubuntu: Incomplete Status in “language-selector” package in Ubuntu: Incomplete Bug description: On Ubuntu 7.10, Adobe Flash player 9 can display Chinese or Japanese (and likely Korean) glyphs, but on Ubuntu 8.04 it doesn't work, displaying "squares" for non-Latin glyphs instead. It seems that "Bitstream Vera Sans" (with no font substitution) is used rather than "WenQuanYi Zen Hei" or other appropriate CJK fonts. A screenshot is attached. Steps to reproduce: 1. System -> Properties -> Language Support (from language-selector), and select one of the CJK locales as the default. 2. Re-login as needed. 3. Start Firefox and open e.g. http://www.tudou.com/ . The same problem still plagues Ubuntu 10.04 LTS (lucid) beta 1 with Adobe Flash Player: flashplugin-installer 10.0.45.2ubuntu1. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-translations/+bug/207198/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

