Monospace not Monospace in Japanese

[Mingye Wang]

I found this problem when testing FF for bug #1595414, on an English installation of 14.04. In short:

$ LC_ALL='ja_JP.UTF-8' fc-match 'Monospace'
DroidSansFallbackFull.ttf: "Droid Sans Fallback" "Regular"

[Mingye Wang (artoria2e5)]

Bug apparently caused by this part in 65-droid-sans-fallback.conf:

        <alias>
                <family>monospace</family>
                <prefer>
                        <family>Droid Sans Fallback</family>
                </prefer>
        </alias>

Since no language-selector files related to ja are installed, I am moving this problem to fonts-droid.

[Mingye Wang (artoria2e5)]

Firefox exhibits similar broken behavior with lang='zh-CN', but not lang='zh-Hans-CN'. (What am I looking at..)

[Gunnar Hjalmarsson (gunnarhj)]

This issue was fixed in xenial via <https://bugs.debian.org/787149>. OTOH, we don't use the fonts-droid-fallback package by default in Ubuntu. The replacement conf file in xenial (64-language-selector-prefer.conf) is correct in this respect.

The question is if the issue is important enough to backport the fix to trusty. If you think it is, please feel free to prepare a patch and accomplish a SRU in accordance with <https://wiki.ubuntu.com/StableReleaseUpdates>.