[Bug 705348] New: Byte-code interpreter seems not enabled in Qt

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Tue May 17 12:43:39 UTC 2011

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Summary: Byte-code interpreter seems not enabled in Qt


           Summary: Byte-code interpreter seems not enabled in Qt
           Product: Fedora
           Version: 15
          Platform: x86_64
        OS/Version: Linux
            Status: NEW
          Severity: low
          Priority: unspecified
         Component: freetype
        AssignedTo: mkasik at redhat.com
        ReportedBy: arthur.kun at gmail.com
         QAContact: extras-qa at fedoraproject.org
                CC: behdad at fedoraproject.org, kevin at tigcc.ticalc.org,
                    fonts-bugs at lists.fedoraproject.org, mkasik at redhat.com
    Classification: Fedora
      Story Points: ---

Created attachment 499346
  --> https://bugzilla.redhat.com/attachment.cgi?id=499346
Comparison of font rendering between kwrite and gedit

Description of problem:
The font rendering in KDE/Qt apps looks like freetype byte-code interpreter
(BCI) is not enabled, while gtk apps renders fonts as BCI enabled. 

Version-Release number of selected component (if applicable):

How reproducible: every time

Steps to Reproduce:
1. Enable full hinting in KDE system settings
2. Open kwrite and gedit; select DejaVu Sans 12 as editor font in both
3. Open the same file in both editors

Actual results:
font rendering in kwrite (both menu and contents) looks like BCI not enabled
(poor hinting); while in gedit, BCI looks as working.

This difference applies to all Qt applications (KDE and non-KDE) and all
Gtk-based applications.

Expected results:
BCI enabled in both Qt and Gtk-based applications

Additional info:
I was using Fedora 15 RC3 downloaded from

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