documentation-packages team mailing list archive

["Gary.Wang" <Gary.Wang@xxxxxxxxxxxxx>]

According to Qt guys feedback  https://bugreports.qt.io/browse/QTBUG-47547
Bug is marked as P2(Important, Not urgent, should be fixed, but will not stop the release), which doesn't fit  our OTA release cycle since we can't wait for next release of Qt.
Thanks to Yc  for correcting  the "affects distribution/package" 
qtdeclarative-opensource-src (Ubuntu)  --->  qtbase-opensource-src (Ubuntu)
I try to submit my merge proposal for  qtbase-opensource-src, but it doesn't work out since I am not a members of Ubuntu branches.
So I attach the patch here and send an email for stakeholder about this.

** Patch added: "enable_fonts_always_smoothly.patch"
   https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1475205/+attachment/4439416/+files/enable_fonts_always_smoothly.patch

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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").

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