Qt 5 uses grayscale instead of subpixel font antialiasing
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
qtbase-opensource-src (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
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:/
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: libqt5gui5 5.2.1+dfsg-
ProcVersionSign
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_
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: qtbase-
UpgradeStatus: No upgrade log present (probably fresh install)
This might be related also: <https:/ /bugreports. qt.io/browse/ QTBUG-27106>. That bug talks about disabling antialiasing, but the patch for it makes Qt read subpixel and antialiasing settings from Xft, instead of just hint style: <https:/ /qt.gitorious. org/qt/ qtbase/ commit/ 6efa8cd70aedf13 edef9143eb57b52 bd175fb748>. I haven't tried Qt 5.4 to see if it helps, though.