Basically, this patch fixes both. The main reason why it *only* fixes PC, but not for touch is that we forget to re-compile qtubuntu(libqpa-ubuntumirclient.so) to make this work.Compiling qtbase automatically enable qpa(linuxfb,eglfs...) linked against patch applied qtbase module. So we can't reproduce this issue on PC(linuxfb). However as a standalone qpa plugin,ubuntumirclient is not native supported,which means it's not in qtbase/src/plugins/platforms).So ubuntumirclient can't find the new added symbol(QFontconfigDatabase::fontsAlwaysScalable()).And it didn't work out on touch.
Please check the attached picture. I test and verify my patch on bq. ** Attachment added: "fix-on-touch.png" https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1475205/+attachment/4444521/+files/fix-on-touch.png -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qtbase-opensource-src in Ubuntu. https://bugs.launchpad.net/bugs/1475205 Title: Random Chinese character missing with Ubuntu font Status in Canonical System Image: In Progress Status in qtbase-opensource-src package in Ubuntu: Confirmed Status in qtdeclarative-opensource-src package in Ubuntu: Invalid Status in ubuntu-font-family-sources package in Ubuntu: Incomplete Status in ubuntu-ui-toolkit package in Ubuntu: Invalid Bug description: After applied 50 GU setting in image, we started seeing randomly missing Chinese characters across scopes and apps header, not clipped at the begin or end of string, sometimes in the middle. STEPS: 1. Switch display language to zh_CN in system settings 2. Reboot the phone EXPECTED: I should see all header strings displayed properly. ACTUAL: Randomly missing character. VERSIONS: current build number: 51 device name: arale channel: ubuntu-touch/rc-proposed/meizu.zh-proposed last update: 2015-07-16 04:59:10 version version: 51 version ubuntu: 20150716 version device: 20150709-8965e37 version custom: 20150716-819-9-6 ---------- update ---------- The problem of missing characters can be reproduced even on a desktop, outside of the header, without importing Ubuntu.Components: import QtQuick 2.0 Item { width: 800 height: 600 Text { anchors.centerIn: parent text: "系统设置 one two" font.family: "Ubuntu" font.pixelSize: 69 font.weight: Font.Light } } The problem only appears to occur with this specific combination of font family, pixelSize and weight. Tim Peeters reproduced the problem on vivid on a laptop without changing the default settings for the language (LANGUAGE="en_US"). To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1475205/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
