However, if I change "Droid Sans" to "Droid Sans Fallback", and I can get sas-serif as "Droid Sans Fallback" although it is still different from yours.
$ LANG=zh_TW.UTF-8 fc-match -a 'sans-serif' | head -n 20 DroidSansFallbackFull.ttf: "Droid Sans Fallback" "Regular" uming.ttc: "AR PL UMing TW" "Light" uming.ttc: "AR PL UMing HK" "Light" ukai.ttc: "AR PL UKai TW" "Book" ukai.ttc: "AR PL UKai HK" "Book" DejaVuSans.ttf: "DejaVu Sans" "Book" DejaVuSans-Bold.ttf: "DejaVu Sans" "Bold" n019003l.pfb: "Nimbus Sans L" "Regular" n019043l.pfb: "Nimbus Sans L" "Regular Condensed" n019004l.pfb: "Nimbus Sans L" "Bold" n019044l.pfb: "Nimbus Sans L" "Bold Condensed" n019023l.pfb: "Nimbus Sans L" "Regular Italic" n019063l.pfb: "Nimbus Sans L" "Regular Condensed Italic" n019024l.pfb: "Nimbus Sans L" "Bold Italic" n019064l.pfb: "Nimbus Sans L" "Bold Condensed Italic" Waree.ttf: "Waree" "Book" Waree-Bold.ttf: "Waree" "Bold" Waree-Oblique.ttf: "Waree" "Oblique" Waree-BoldOblique.ttf: "Waree" "BoldOblique" Loma.ttf: "Loma" "Book" -- 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/1335482 Title: Droid Sans no longer preferred font for Chinese Status in “language-selector” package in Ubuntu: Fix Released Status in “language-selector” source package in Trusty: Fix Released Bug description: [Impact] In the 69-language-selector-zh-??.conf files we try to make Droid Sans the preferred font in case of a Chinese locale. However, suddenly this seems to not work any longer. The number of affected users is significant. [Test Case] How to reproduce: $ sudo locale-gen zh_CN.UTF-8 $ LANG=zh_CN.UTF-8 fc-match 'sans-serif' After the change, the response is the expected DroidSansFallbackFull.ttf: "Droid Sans" "Regular" Before the change, the response is something else. [Regression Potential] This makes the intended (and previously working) behaviour effective. No undesired side effects identified. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/language-selector/+bug/1335482/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp