[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Adolfo Jayme]

** No longer affects: ubuntu-font-family-sources (Ubuntu)

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https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Fix Released
Status in qtbase-opensource-src package in Ubuntu:
  Fix Released
Status in qtdeclarative-opensource-src package in Ubuntu:
  Invalid
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

qtbase-opensource-src (5.5.1+dfsg-6ubuntu3) xenial; urgency=medium

  * debian/patches/enable-tests.patch:
- Replace the non-DFSG-free RFC files with public domain content.
- Adjust tests to the new files.
(LP: #1522442)
  * debian/copyright: mention the replacement.
  * Switch to opt-in for architectures to run tests on.

 -- Timo Jyrinki   Mon, 07 Dec 2015 14:02:11
+

qtbase-opensource-src (5.5.1+dfsg-6ubuntu2) xenial; urgency=high

  * Skip largefile test on s390x too, in addition to amd64.
  * Make tests to keep going till the end with -k.

 -- Dimitri John Ledkov   Fri, 04 Dec 2015 16:54:28
+

qtbase-opensource-src (5.5.1+dfsg-6ubuntu1) xenial; urgency=medium

  * New upstream release. (LP: #1437206) (LP: #1450137) (LP: #1474313)
(LP: #1470700) (LP: #1504631) (LP: #1423659) (LP: #1474775) (LP: #1508945)
  * Replace load_testability_from_env_var.patch with upstreamed
Add-environment-variable-support-for-testability-lib.patch
  * Drop patches in upstream:
- Correct-typo-in-the-Gujarati-openType-identififer.patch
  * Rebase enable-tests.patch. Disable one failing QtWidgets test.
  * Build depend on GStreamer 1.0 and add a configure option for it.
  * Update symbols.
  * Mark/unmark private symbols.
  * Replace two Ubuntu patches with upstreamed patches:
- Drop disable-generic-plugin-when-others-available.patch, replace with
  Add-an-option-to-skip-the-generic-bearer-engine.patch
- Drop qopenglframebufferobject_powervrworkaround.patch, replace with
  Blacklist-PowerVR-Rogue-G6200-v1.3-from-supporting-B.patch
  * debian/patches/Make-sure-networkAccessibilityChanged-is-emitted.patch:
- Include a network fix from Qt 5.5 branch (merged after 5.5.1)
  (LP: #1470700)
  * debian/patches/Use-Node-name-if-Node-logicalModuleName-is-empty-for.patch:
- Fix a qdoc issue (LP: #1447182)
  * Remove disable_overlay_scrollbars.diff as overlay scrollbars were dropped.
  * debian/patches/Prefer-QT_PLUGIN_PATH-over-compiled-in-paths.patch:
- Backport. Prefer QT_PLUGIN_PATH over compiled-in paths (LP: #1519927)
  * debian/patches/Fix-crash-on-exit-caused-by-QStringLiterals.patch
- Backport. Fix a crasher on exit (LP: #1436973)
  * Replace our workaround for font rendering with new backported upstream
patches:
- Add debian/patches/Fix-falsely-reported-style-for-fallback-font.patch
- Add 
debian/patches/Remove-historical-4-padding-in-QFontEngine-alphaMapF.patch
- Remove debian/patches/enable_fonts_always_smoothly.patch
  (LP: #1475205)

 -- Timo Jyrinki   Tue, 01 Dec 2015 06:16:35
+

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https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Fix Released
Status in qtbase-opensource-src package in Ubuntu:
  Fix Released
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Pat McGowan]

** Changed in: canonical-devices-system-image
   Status: Fix Committed => Fix Released

-- 
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:
  Fix Released
Status in qtbase-opensource-src package in Ubuntu:
  Fix Released
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

Verified that a no-change qtubuntu rebuild fixes the issue! The silo has
now been moved to QA's hands for verification.

-- 
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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

** Changed in: qtbase-opensource-src (Ubuntu)
   Status: Confirmed = In Progress

** Changed in: qtbase-opensource-src (Ubuntu)
 Assignee: (unassigned) = Timo Jyrinki (timo-jyrinki)

-- 
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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Ethan Chang]

Screenshot for reference

** Attachment added: test.png
   
https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1475205/+attachment/596/+files/test.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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Ethan Chang]

Upgrade the packages from silo 33, the fix works on Arale. 
Thanks for fixing the bug.

-- 
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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Launchpad Bug Tracker]

This bug was fixed in the package qtbase-opensource-src - 5.4.2+dfsg-
2ubuntu3

---
qtbase-opensource-src (5.4.2+dfsg-2ubuntu3) trusty; urgency=medium

  [ Gary Wang ]
  * debian/patches/enable_fonts_always_smoothly.patch:
- Workaround a glyph rendering problem by forcing distance field
  rendering (LP: #1462982) (LP: #1475205)

 -- Timo Jyrinki timo.jyri...@iki.fi  Wed, 05 Aug 2015 11:44:25 +0300

** Changed in: qtbase-opensource-src (Ubuntu)
   Status: Fix Committed = Fix Released

-- 
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:
  Fix Committed
Status in qtbase-opensource-src package in Ubuntu:
  Fix Released
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

Fixed in vivid-overlay PPA:

---
qtbase-opensource-src (5.4.1+dfsg-2ubuntu8) vivid; urgency=medium

  [ Gary Wang ]
  * debian/patches/enable_fonts_always_smoothly.patch:
- Workaround a glyph rendering problem by forcing distance field
  rendering (LP: #1462982) (LP: #1475205)

 -- Timo Jyrinki timo-jyri...@ubuntu.com  Wed, 05 Aug 2015 08:50:19
+

** Changed in: qtbase-opensource-src (Ubuntu)
   Status: In Progress = Fix Committed

-- 
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:
  Fix Committed
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Jean-Baptiste Lallement]

** Changed in: canonical-devices-system-image
   Status: In Progress = Fix Committed

-- 
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:
  Fix Committed
Status in qtbase-opensource-src package in Ubuntu:
  Fix Committed
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Gary.Wang]

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/521/+files/fix-on-touch.png

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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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Ethan Chang]

Tried the manual way to upgrade the packages , but the test is still fail on my 
Arale 
I check the package version is correct 5.4.1+dfsg-2ubuntu8 (pastebin; 
ttps://pastebin.canonical.com/137235/ )


** Attachment added: 0811.png
   
https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1475205/+attachment/4442816/+files/0811.png

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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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

I believe the current workaround is not ok for landing as it only fixes
the desktop case while leaving the phone issue, for some reason, same as
before.

** Changed in: qtbase-opensource-src (Ubuntu)
 Assignee: Timo Jyrinki (timo-jyrinki) = (unassigned)

** Changed in: qtbase-opensource-src (Ubuntu)
   Status: In Progress = Confirmed

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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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Ethan Chang]

＠Timo 
I realize that  my Arale didn't install correct version of packages after 
perform citrain to upgrade system. 
 I tried several times  but it didn't install or upgrade those packages on 
landing-33 ppa. So the version of on the Arale is 5.4.1+dfsg-2ubuntu7.  May 
need your help to check if anything wrong of test steps. 

Steps
1. Connect my phone to a destop
2  perform 'citrain device-upgrade 33  ubuntu' 
3. Phone will be reboot after that 
4. Check the version of package and it shows   5.4.1+dfsg-2ubuntu7

-- 
You received this bug notification because you are a member of Ubuntu
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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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

On desktop I can see the PPA fixing the issue, see the attached
screenshots.

-- 
You received this bug notification because you are a member of Ubuntu
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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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Ethan Chang]

@Timo 
I run the citrain to install your patch, and then try the test qml but the 
missing letter is still missing. 

phablet@ubuntu-phablet:~$ system-image-cli -i
current build number: 73
device name: arale
channel: ubuntu-touch/rc-proposed/meizu.zh-proposed
last update: 2015-08-10 06:45:07
version version: 73
version ubuntu: 20150807.1
version device: 20150709-8965e37
version custom: 20150729-849-849-9


** Attachment added: qml.png
   
https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1475205/+attachment/4442056/+files/qml.png

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to qtbase-opensource-src in
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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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

** Attachment added: withoutppa.png
   
https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1475205/+attachment/4442047/+files/withoutppa.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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

** Attachment added: withppa.png
   
https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1475205/+attachment/4442048/+files/withppa.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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Jason Yen]

@Ethan,

Please help to verify this fix with arale. Thanks.

-- 
You received this bug notification because you are a member of Ubuntu
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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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

adb push Main.qml /home/phablet
adb shell
qmlscene Main.qml 
--desktop_file_hint=/usr/share/applications/mediaplayer-app.desktop


** Attachment added: my combined test qml
   
https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1475205/+attachment/4440445/+files/Main.qml

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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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

Could you please test on vivid+overlay with the silo 33
(https://launchpad.net/~ci-train-ppa-
service/+archive/ubuntu/landing-033/). The debdiff is
http://paste.ubuntu.com/12013270/. For example: citrain device-upgrade
33  ubuntu

Check with dpkg -s libqt5core5a that the version is 5.4.1+dfsg-2ubuntu8

Please share your test results. On my mako I can't see a difference. The
example in comment #17 seems to always work my mako. But the test code
from comment #12 always tends to have one letter missing, with or
without the PPA.

So arale/krillin results would be welcome. I don't see regressions, so
if even one case is fixed with the updated qtbase I can land this, but I
can't see differences on my mako.

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Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  In Progress
Status in qtbase-opensource-src package in Ubuntu:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

** Changed in: qtbase-opensource-src (Ubuntu)
 Assignee: (unassigned) = Timo Jyrinki (timo-jyrinki)

** Changed in: qtbase-opensource-src (Ubuntu)
   Importance: Undecided = High

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You received this bug notification because you are a member of Ubuntu
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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).

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1475205/+subscriptions

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

I'll start preparing the patch for landing to wily  vivid-overlay.
There's another qtbase landing in QA queue so that must go in first.

@Gary: I can take your patch from here regarding getting it on to
images. A big thank you for developing the patch! Upstream may have
other suggestions on how to solve the problem and contribute an improved
patch to https://codereview.qt-project.org/ directly - but we can carry
the current small workaround patch until there's a better solution.

-- 
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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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

** Changed in: qtbase-opensource-src (Ubuntu)
   Status: Confirmed = In Progress

-- 
You received this bug notification because you are a member of Ubuntu
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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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Timo Jyrinki]

I'm rebasing the patch for the Qt 5.4.2/5.4.1 as attached.

** Patch added: enable_fonts_always_smoothly_qt54.patch
   
https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1475205/+attachment/4439602/+files/enable_fonts_always_smoothly_qt54.patch

-- 
You received this bug notification because you are a member of Ubuntu
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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:
  In Progress
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Gary.Wang]

** Changed in: qtdeclarative-opensource-src (Ubuntu)
 Assignee: Gary.Wang (gary-wzl77) = (unassigned)

** Changed in: qtdeclarative-opensource-src (Ubuntu)
   Status: Confirmed = Invalid

-- 
You received this bug notification because you are a member of Ubuntu
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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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Yuan-Chen Cheng]

** Also affects: qtbase-opensource-src (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: qtbase-opensource-src (Ubuntu)
   Status: New = Confirmed

-- 
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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).

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1475205/+subscriptions

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Gary.Wang]

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).

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1475205/+subscriptions

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Ubuntu Foundations Team Bug Bot]

The attachment enable_fonts_always_smoothly.patch seems to be a patch.
If it isn't, please remove the patch flag from the attachment, remove
the patch tag, and if you are a member of the ~ubuntu-reviewers,
unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issues please contact him.]

** Tags added: 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).

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1475205/+subscriptions

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Pat McGowan]

nice work Gary

** Changed in: qtdeclarative-opensource-src (Ubuntu)
   Importance: Undecided = High

** Changed in: qtdeclarative-opensource-src (Ubuntu)
 Assignee: (unassigned) = Gary.Wang (gary-wzl77)

-- 
You received this bug notification because you are a member of Ubuntu
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Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Confirmed
Status in qtdeclarative-opensource-src package in Ubuntu:
  Confirmed
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Pat McGowan]

** Changed in: canonical-devices-system-image
   Status: Confirmed = In Progress

-- 
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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 qtdeclarative-opensource-src package in Ubuntu:
  Confirmed
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Gary.Wang]

Copy bug description  https://bugreports.qt.io/browse/QTBUG-47547 and
paste here.

if developer specifies font family with Non-Regular style, potential risk to 
encounter Chinese characters are missing in some cases .
E.g 

import QtQuick 2.4 
import QtQuick.Controls 1.3 

ApplicationWindow {
visible: true
width: 1280
height: 800 

Text {
anchors.centerIn: parent
text: 系统设置
font.family: Ubuntu
font.pixelSize: 69;
font.weight: Font.Light
}
}

Regarding the code snippets above.
For Chinese characters, QFontDatabase will use fallback font family(Droid Sans 
Fallback) with Light style when add font Glyph.
 since QFontDatabase checks if default style(Regular) of fallback font family 
Droid Sans Fallback is same as font style specified in qml(Font.Light). And 
QFontDatabase::isSmoothlyScalable will return false in such a case, which 
results in scene graph will 
use QSGDefaultGlyphNode when createGlyphNode is called. Issue happens.

However If scene graph doesn't prefer NativeGlyphNode and create GlyphNode 
based on Distance Field technique. It works fine.
https://drive.google.com/open?id=0B2H9ECPSSfqIMzhvU1hPUWNlWnc

Need to only check styleKey when foundry-styles == specified style
Will see feedback from Qt guys.
Thanks.

PS:  more test cases and patch can be found on 
https://bugreports.qt.io/browse/QTBUG-47547
Also I think we can override  bool QBasicFontDatabase::fontsAlwaysScalable() 
method in qlinuxfbfontdatabase.cpp under qtbase/src/plugins/platforms/ for 
platform independent purpose.

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https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Confirmed
Status in qtdeclarative-opensource-src package in Ubuntu:
  Confirmed
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: qtdeclarative-opensource-src (Ubuntu)
   Status: New = Confirmed

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to qtdeclarative-opensource-
src in Ubuntu.
https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Confirmed
Status in qtdeclarative-opensource-src package in Ubuntu:
  Confirmed
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Pat McGowan]

So it only happens if all conditions are met:
Font is Ubuntu and Qt falls back to Droid Sans Fallback (which is from package 
fonts-wqy-microhei)
Pixelsize is 69 as computed from the 50GUs and Grid Unit size of 23
Font weight is Light

Random characters are not shown.

Seems a bug in Qt's font fallback logic - similar report at
https://bugreports.qt.io/browse/QTBUG-32470

Can someone try on Wily?

** Attachment added: Main.qml
   
https://bugs.launchpad.net/ubuntu/+source/ubuntu-ui-toolkit/+bug/1475205/+attachment/4432959/+files/Main.qml

** Also affects: qtdeclarative-opensource-src (Ubuntu)
   Importance: Undecided
   Status: New

** Changed in: ubuntu-font-family-sources (Ubuntu)
   Status: Confirmed = Incomplete

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to ubuntu-font-family-sources
in Ubuntu.
https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Confirmed
Status in qtdeclarative-opensource-src package in Ubuntu:
  New
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Tim Peeters]

Does this happen with other strings in Chinese as well? Can you give a few more 
examples?
Or is it specific to these 4 characters?

-- 
You received this bug notification because you are a member of Ubuntu
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src in Ubuntu.
https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Confirmed
Status in qtdeclarative-opensource-src package in Ubuntu:
  New
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Pat McGowan]

FWIW this shows missing characters as well, very few fonts have a Light
version.

   Text {
text: 系统设置 Bookman Light 69px
font.family: URW Bookman L
font.pixelSize: 69
font.weight: Font.Light
}

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to qtdeclarative-opensource-
src in Ubuntu.
https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Confirmed
Status in qtdeclarative-opensource-src package in Ubuntu:
  New
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Penk Chen]

@Tim,

Yes, please take comment #2 for an example, 新闻.

-- 
You received this bug notification because you are a member of Ubuntu
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src in Ubuntu.
https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Confirmed
Status in qtdeclarative-opensource-src package in Ubuntu:
  New
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: ubuntu-font-family-sources (Ubuntu)
   Status: New = Confirmed

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to ubuntu-font-family-sources
in Ubuntu.
https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Confirmed
Status in ubuntu-font-family-sources package in Ubuntu:
  Confirmed
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Tim Peeters]

** Summary changed:

- Random Chinese character missing in header with 50 GU
+ Random Chinese character missing with Ubuntu font

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to ubuntu-ui-toolkit in
Ubuntu.
https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Confirmed
Status in ubuntu-font-family-sources package in Ubuntu:
  New
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

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[Touch-packages] [Bug 1475205] Re: Random Chinese character missing with Ubuntu font

[Penk Chen]

I can confirm this happens on font.family: Ubuntu, the default
fallback font of Chinese seems to be Droid Sans.

Here's the output of Qt.fontFamilies() on our Chinese image:

qml: DejaVu Sans,DejaVu Sans Mono,DejaVu Serif,Droid Arabic Kufi,Droid
Arabic Naskh,Droid Naskh Shift Alt,Droid Sans,Droid Sans Arabic,Droid
Sans Armenian,Droid Sans Ethiopic,Droid Sans Fallback,Droid Sans
Georgian,Droid Sans Hebrew,Droid Sans Japanese,Droid Sans Mono,Droid
Serif,Liberation Mono,Liberation Sans,Liberation Sans Narrow,Liberation
Serif,Lohit
Devanagari,Monospace,NanumBarunGothic,NanumGothic,NanumMyeongjo,Sans
Serif,Serif,Symbola,TakaoPGothic,Ubuntu,Ubuntu Condensed,Ubuntu
Mono,文泉驿微米黑,文泉驿等宽微米黑

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to ubuntu-ui-toolkit in
Ubuntu.
https://bugs.launchpad.net/bugs/1475205

Title:
  Random Chinese character missing with Ubuntu font

Status in Canonical System Image:
  Confirmed
Status in ubuntu-font-family-sources package in Ubuntu:
  New
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

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