diff -Nur qt4-x11-4.5.0-orig/src/gui/text/qfontengine_ft.cpp qt4-x11-4.5.0/src/gui/text/qfontengine_ft.cpp
--- qt4-x11-4.5.0-orig/src/gui/text/qfontengine_ft.cpp	2009-04-25 20:27:02.000000000 +0900
+++ qt4-x11-4.5.0/src/gui/text/qfontengine_ft.cpp	2009-04-25 20:35:55.000000000 +0900
@@ -60,6 +60,7 @@
 #include <ft2build.h>
 #include FT_FREETYPE_H
 #include FT_OUTLINE_H
+#include FT_SYNTHESIS_H
 #include FT_TRUETYPE_TABLES_H
 #include FT_TYPE1_TABLES_H
 #include FT_GLYPH_H
@@ -610,6 +611,7 @@
     cache_cost = 100;
     kerning_pairs_loaded = false;
     transform = false;
+    embolden = false;
     antialias = true;
     embolden = false;
     default_load_flags = 0;
@@ -667,10 +669,7 @@
 
     FT_Face face = lockFace();
 
-    //underline metrics
     if (FT_IS_SCALABLE(face)) {
-        line_thickness =  QFixed::fromFixed(FT_MulFix(face->underline_thickness, face->size->metrics.y_scale));
-        underline_position = QFixed::fromFixed(-FT_MulFix(face->underline_position, face->size->metrics.y_scale));
         bool fake_oblique = (fontDef.style != QFont::StyleNormal) && !(face->style_flags & FT_STYLE_FLAG_ITALIC);
         if (fake_oblique)
             matrix.xy = 0x10000*3/10;
@@ -678,6 +677,12 @@
         freetype->matrix = matrix;
         if (fake_oblique)
             transform = true;
+    // fake bold
+        if ((fontDef.weight == QFont::Bold) && !(face->style_flags & FT_STYLE_FLAG_BOLD))
+            embolden = true;
+    // underline metrics
+        line_thickness =  QFixed::fromFixed(FT_MulFix(face->underline_thickness, face->size->metrics.y_scale));
+        underline_position = QFixed::fromFixed(-FT_MulFix(face->underline_position, face->size->metrics.y_scale));
     } else {
         // copied from QFontEngineQPF
         // ad hoc algorithm
@@ -1229,6 +1234,8 @@
     int s = 0;
     if ((fontDef.style != QFont::StyleNormal) && !(freetype->face->style_flags & FT_STYLE_FLAG_ITALIC))
         s = SynthesizedItalic;
+    if ((fontDef.weight == QFont::Bold) && !(freetype->face->style_flags & FT_STYLE_FLAG_BOLD))
+        s |= SynthesizedBold;
     if (fontDef.stretch != 100 && FT_IS_SCALABLE(freetype->face))
         s |= SynthesizedStretch;
     return s;