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-- 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/1351092 Title: Configuration of the Droid Sans Fallback font Status in “fonts-android” package in Ubuntu: Fix Released Status in “language-selector” package in Ubuntu: Fix Released Status in “fonts-android” source package in Trusty: Fix Released Status in “language-selector” source package in Trusty: Fix Released Status in “fonts-android” package in Debian: Fix Released Bug description: [Impact] fontconfig configuration settings, aimed at making the Droid Sans Fallback font be used to render Chinese, fails sometimes in an unpredictable way. This seems to be caused by the file 65-droid-sans- fonts.conf, which is currently installed by fonts-droid. Consequently that file is proposed to be dropped from fonts-droid. Some fontconfig files in language-selector are proposed to be changed accordingly. Example problems: * One of the AR PL UMing fonts is sometimes used instead of Droid Sans Fallback in case of a Chinese locale. * Buggy rendering of Chinese contents in qt apps in case of a non-Chinese locale (bug #1334495). * Droid Sans Fallback can't be used in Ubuntu Touch (see discussion at bug #1346766). [Test Case] Since the behaviour is not always buggy, it's hard to present a proper test case. Instead I have to refer to the discussions in this bug report as well as the above mentioned bugs. [Regression Potential] While the fonts-droid package installs a bunch of fonts for various languages, only the Droid Sans Fallback font is used as part of Ubuntu's default font configuration. The regression risk for Chinese users is reasonably very low. There is a risk, though, that this change leads to surprise changes for individual users who make use of other fonts but Droid Sans Fallback. There is no indication that those other fonts are widely used. [Original description] There are currently several open issues related to the use of Droid Sans Fallback for rendering Chinese content: * Two mixed fonts when rendering Chinese in KDE/QT apps with Droid Sans fonts https://launchpad.net/bugs/1334495 * Droid Sans no longer preferred font for Chinese https://launchpad.net/bugs/1335482 * Chinese in Ubuntu Touch should use Heiti style sans serif font https://launchpad.net/bugs/1346766 Unlike e.g. fonts-wqy-microhei, the fonts-droid package installs a bunch of fonts, of which only one is needed for Chinese. In an attempt to sort things out I have built the fonts-android source package in my PPA with the DroidSansFallbackFull.ttf font broken out to a separate binary package named fonts-droid-cjk. The PPA also includes a version of language-selector where the changes in version 0.129.2 have been reverted. To test it in Trusty, you should: * Uninstall the fonts-droid package * Install fonts-droid-cjk and language-selector-common from my PPA at https://launchpad.net/~gunnarhj/+archive/ubuntu/droid-test My own tests indicate that the change to language-selector due to bug #1335482 was a step in the wrong direction. With DroidSansFallbackFull.ttf as the only installed font from the Droid Sans family, you get rid of possible confusion that might have resulted in the issue reported in that bug. $ LANG=zh_CN.UTF-8 fc-match -s 'sans-serif' | head -n 5 DroidSansFallbackFull.ttf: "Droid Sans Fallback" "Regular" uming.ttc: "AR PL UMing CN" "Light" uming.ttc: "AR PL UMing HK" "Light" ukai.ttc: "AR PL UKai CN" "Book" DejaVuSans.ttf: "DejaVu Sans" "Book" Also, if we would take this route, it might be easier to fix a configuration that makes Droid Sans Fallback work well with qt apps. (This is pure theory/hope so far.) Looking forward to your comments. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fonts-android/+bug/1351092/+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
