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[Bug 1417370] [NEW] Qt 5 uses grayscale instead of subpixel font antialiasing

 

Public bug reported:

Qt 5 applications like Qt Creator or the Ubuntu web browser (webbrowser-
app) use grayscale font antialiasing. GTK 3, GTK 2, and Qt 4 use
subpixel antialiasing as expected, so fonts in Qt 5 look weird. Attached
screenshot shows an example of the problem.

This upstream bug report might be related:
https://bugreports.qt.io/browse/QTBUG-36445

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: libqt5gui5 5.2.1+dfsg-1ubuntu14.2
ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
Uname: Linux 3.13.0-44-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Feb  2 19:35:10 2015
InstallationDate: Installed on 2014-08-30 (156 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: qtbase-opensource-src
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug trusty

** Attachment added: "Screenshot comparing Qt 5 and GTK 3 font antialiasing."
   https://bugs.launchpad.net/bugs/1417370/+attachment/4310929/+files/Qt%205%20Font%20Antialiasing.png

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https://bugs.launchpad.net/bugs/1417370

Title:
  Qt 5 uses grayscale instead of subpixel font antialiasing

Status in qtbase-opensource-src package in Ubuntu:
  New

Bug description:
  Qt 5 applications like Qt Creator or the Ubuntu web browser
  (webbrowser-app) use grayscale font antialiasing. GTK 3, GTK 2, and Qt
  4 use subpixel antialiasing as expected, so fonts in Qt 5 look weird.
  Attached screenshot shows an example of the problem.

  This upstream bug report might be related:
  https://bugreports.qt.io/browse/QTBUG-36445

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: libqt5gui5 5.2.1+dfsg-1ubuntu14.2
  ProcVersionSignature: Ubuntu 3.13.0-44.73-generic 3.13.11-ckt12
  Uname: Linux 3.13.0-44-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.6
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Mon Feb  2 19:35:10 2015
  InstallationDate: Installed on 2014-08-30 (156 days ago)
  InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: qtbase-opensource-src
  UpgradeStatus: No upgrade log present (probably fresh install)

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