Launchpad has imported 16 comments from the remote bug at https://bugzilla.redhat.com/show_bug.cgi?id=490377.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2009-03-15T20:55:12+00:00 Adam wrote: Created attachment 335275 Qt4 application with RGB subpixel Description of problem: When VRGB is selected in subpixel font smoothing options in Gnome, Qt4 applications display garbage instead of text. Version-Release number of selected component (if applicable): qt-4.5.0-3.fc11.x86_64 How reproducible: Always. Steps to Reproduce: 1. Select VRGB. 2. Run psi or lmms. Actual results: Garbage fonts. Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/12 ------------------------------------------------------------------------ On 2009-03-15T20:55:45+00:00 Adam wrote: Created attachment 335276 Qt4 application with VRGB subpixel Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/13 ------------------------------------------------------------------------ On 2009-03-15T21:01:54+00:00 Kevin wrote: Just to ask the obvious: you do have freetype-freeworld or some other freetype build with subpixel antialiasing support, right? Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/14 ------------------------------------------------------------------------ On 2009-03-15T22:53:13+00:00 Rex wrote: What X video driver are you using? Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/15 ------------------------------------------------------------------------ On 2009-03-15T23:36:49+00:00 Adam wrote: I do not have freetype-freeworld, this is the default Fedora 11 freetype. It DOES appear to have subpixel rendering: I can see it with xmag. I am using xorg-x11-drv-ati (r300 radeon, not using KMS). Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/16 ------------------------------------------------------------------------ On 2009-03-16T00:00:44+00:00 Kevin wrote: This is interesting, I just checked, subpixel antialiasing is disabled in F9, but got reenabled in F10 and devel. Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/17 ------------------------------------------------------------------------ On 2009-04-11T07:42:04+00:00 Kevin wrote: Behdad said enabling subpixel antialiasing in the Fedora freetype was a mistake (because of patent issues), it's disabled again in current Rawhide and there's also a new F10 freetype build with it disabled (but I don't think it got pushed out). Still, Qt should not display garbage with it... This is also reproducible with Intel graphics according to: https://www.redhat.com/archives/fedora-list/2009-April/msg01110.html Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/31 ------------------------------------------------------------------------ On 2009-04-14T17:56:52+00:00 José wrote: I was using an r300 with KMS as it can be seen here: http://lists.fedoraproject.org/pipermail/fedora-kde/2009-February/001479.html The fix was to remove the hinting: http://lists.fedoraproject.org/pipermail/fedora-kde/2009-February/001624.html Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/33 ------------------------------------------------------------------------ On 2009-04-14T18:28:24+00:00 Rex wrote: Interesting, enabled full font hinting here in systemsettings, but I (still) can't reproduce. Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/34 ------------------------------------------------------------------------ On 2009-04-14T18:32:35+00:00 Rex wrote: nevermind, reading closer (sorry), missed the vrgb part. Confirmed universally broken here, regardless of hinting. Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/35 ------------------------------------------------------------------------ On 2009-04-14T18:42:43+00:00 Rex wrote: confirmed to that vgbr is broken likewise. Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/36 ------------------------------------------------------------------------ On 2009-04-14T19:48:52+00:00 Rex wrote: * Tue Apr 14 2009 Rex Dieter <[email protected]> - 4.5.0-14 - fix vrgb/vgbr corruption, disable QT_USE_FREETYPE_LCDFILTER (#490377) Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/37 ------------------------------------------------------------------------ On 2009-04-15T18:02:23+00:00 Fedora wrote: kdeutils-4.2.2-2.fc10, kdetoys-4.2.2-2.fc10, kdesdk-4.2.2-2.fc10, kdeplasma-addons-4.2.2-2.fc10, kdeedu-4.2.2-1.fc10, kdebase-runtime-4.2.2-3.fc10, kdebase-4.2.2-2.fc10, kdeartwork-4.2.2-3.fc10, kdeadmin-4.2.2-2.fc10, kdeaccessibility-4.2.2-1.fc10, sigen-0.1.1-1.fc10, qgit-2.2-4.fc10.1, psi-0.12.1-2.fc10, kde-plasma-weather-1.0.0-3.fc10, arora-0.6-1.fc10, kde-l10n-4.2.2-1.fc10, kdegraphics-4.2.2-3.fc10, kde-i18n-3.5.10-4.fc10, kdepimlibs-4.2.2-3.fc10, oxygen-icon-theme-4.2.2-1.fc10, kdebindings-4.2.2-2.fc10, kdepim-4.2.2-3.fc10, konq-plugins-4.2.2-1.fc10, kdemultimedia-4.2.2-2.fc10, kdenetwork-4.2.2-1.fc10, kdegames-4.2.2-6.fc10, kdelibs-4.2.2-5.fc10, qjackctl-0.3.3-3.fc10, qsynth-0.3.3-4.fc10, kdebase-workspace-4.2.2-3.fc10, qt-4.5.0-14.fc10 has been pushed to the Fedora 10 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update kdeutils kdetoys kdesdk kdeplasma-addons kdeedu kdebase-runtime kdebase kdeartwork kdeadmin kdeaccessibility sigen qgit psi kde-plasma-weather arora kde-l10n kdegraphics kde-i18n kdepimlibs oxygen-icon-theme kdebindings kdepim konq-plugins kdemultimedia kdenetwork kdegames kdelibs qjackctl qsynth kdebase-workspace qt'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F10/FEDORA-2009-3389 Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/38 ------------------------------------------------------------------------ On 2009-04-17T18:05:36+00:00 Fedora wrote: kdeutils-4.2.2-2.fc10, kdetoys-4.2.2-2.fc10, kdesdk-4.2.2-2.fc10, kdeplasma-addons-4.2.2-2.fc10, kdeedu-4.2.2-1.fc10, kdebase-4.2.2-2.fc10, kdeartwork-4.2.2-3.fc10, kdeadmin-4.2.2-2.fc10, kdeaccessibility-4.2.2-1.fc10, sigen-0.1.1-1.fc10, qgit-2.2-4.fc10.1, psi-0.12.1-2.fc10, kde-plasma-weather-1.0.0-3.fc10, arora-0.6-1.fc10, kde-l10n-4.2.2-1.fc10, kdegraphics-4.2.2-3.fc10, kde-i18n-3.5.10-4.fc10, kdepimlibs-4.2.2-3.fc10, oxygen-icon-theme-4.2.2-1.fc10, kdebindings-4.2.2-2.fc10, kdepim-4.2.2-3.fc10, konq-plugins-4.2.2-1.fc10, kdemultimedia-4.2.2-2.fc10, kdenetwork-4.2.2-1.fc10, kdegames-4.2.2-6.fc10, kdelibs-4.2.2-5.fc10, qjackctl-0.3.3-3.fc10, qsynth-0.3.3-4.fc10, kdebase-workspace-4.2.2-3.fc10, qt-4.5.0-14.fc10, kdebase-runtime-4.2.2-4.fc10 has been pushed to the Fedora 10 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update kdeutils kdetoys kdesdk kdeplasma-addons kdeedu kdebase kdeartwork kdeadmin kdeaccessibility sigen qgit psi kde-plasma-weather arora kde-l10n kdegraphics kde-i18n kdepimlibs oxygen-icon-theme kdebindings kdepim konq-plugins kdemultimedia kdenetwork kdegames kdelibs qjackctl qsynth kdebase-workspace qt kdebase-runtime'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F10/FEDORA-2009-3389 Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/39 ------------------------------------------------------------------------ On 2009-04-22T01:05:45+00:00 Fedora wrote: kdeutils-4.2.2-2.fc10, kdetoys-4.2.2-2.fc10, kdesdk-4.2.2-2.fc10, kdeplasma-addons-4.2.2-2.fc10, kdeedu-4.2.2-1.fc10, kdebase-4.2.2-2.fc10, kdeartwork-4.2.2-3.fc10, kdeadmin-4.2.2-2.fc10, kdeaccessibility-4.2.2-1.fc10, sigen-0.1.1-1.fc10, qgit-2.2-4.fc10.1, psi-0.12.1-2.fc10, kde-plasma-weather-1.0.0-3.fc10, arora-0.6-1.fc10, kde-l10n-4.2.2-1.fc10, kdegraphics-4.2.2-3.fc10, kde-i18n-3.5.10-4.fc10, kdepimlibs-4.2.2-3.fc10, oxygen-icon-theme-4.2.2-1.fc10, kdebindings-4.2.2-2.fc10, kdepim-4.2.2-3.fc10, konq- plugins-4.2.2-1.fc10, kdemultimedia-4.2.2-2.fc10, kdenetwork-4.2.2-1.fc10, kdegames-4.2.2-6.fc10, kdebase- workspace-4.2.2-3.fc10, qt-4.5.0-14.fc10, kdebase-runtime-4.2.2-4.fc10, qjackctl-0.3.4-1.fc10, qsynth-0.3.3-6.fc10, kdelibs-4.2.2-7.fc10 has been pushed to the Fedora 10 stable repository. If problems still persist, please make note of it in this bug report. Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/44 ------------------------------------------------------------------------ On 2009-04-25T17:27:23+00:00 Rex wrote: fyi, freetype lcd_filter for vrgb/vgbr is fixed in qt-4.5.1. Reply at: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/334657/comments/53 ** Changed in: qt4-x11 (Fedora) Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qt4-x11 in Ubuntu. https://bugs.launchpad.net/bugs/334657 Title: Subpixel/Lcd mode with VRGB/VBGR makes qt4 applications on Jaunty unreadable Status in qt4-x11 package in Ubuntu: Fix Released Status in qt4-x11 source package in Jaunty: Fix Released Status in qt4-x11 source package in Karmic: Fix Released Status in qt4-x11 package in Fedora: Fix Released Bug description: *Below added by Jonathan Thomas* Stable Release Update (SRU) infos: -Impact: Many Gnome users who have VRGB or VBGR hinting enabled will be hit with completely corrupted fonts in Qt apps -Addressed by: This bug has been addressed by adding a patch from OpenSuse that disables the new, buggy font filter and falls back to the old method. -Testcase: In Gnome, open System>Preferences>Appearance>Fonts. Choose vertical RGB or BGR LCD hinting. Qt applications using this fonting scheme will now sport corrupted fonts. -Patch/regression potential: None. Fonts are completely broken otherwise, so falling back to the old hinting method can't make it any worse. A proper fix has been made in Qt 4.5.1, but we are not ready to backport that version at this time. ####################################################################### I have corrupted fonts in some programs like smplayer, ktorrent and amarok. I have a fresh install of Jaunty 9.04. I've attached some screenshots of the problem. [update from Caspar Clemens Mierau / damokles] This bug is about a problem with using Gnome's lcd/subpixel mode in System>Preferences>Appearance>Fonts. When this is enabled in conjunction with VRGB or VBGR, qt4 applications are not readable any more. Please note, that you need to close all qt4 applications before changing this, so the change gets applied to next opened qt4 application. 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