the bug is in fact due to the gtk-qt-engine hack, you should uninstall that if you want a stable installation
#9 0xb77b8bbb in IA__gdk_pixmap_new (drawable=0x8357468, width=66, height=30, depth=24) at /build/buildd/gtk+2.0-2.15.4/gdk/x11/gdkpixmap-x11.c:169 pixmap = (GdkPixmap *) 0x0 cmap = <value optimized out> window_depth = 24 __PRETTY_FUNCTION__ = "IA__gdk_pixmap_new" #10 0xb640332e in ?? () from /usr/lib/libQtGui.so.4 #11 0xb63f6f9e in QGtkStyle::drawPrimitive () from /usr/lib/libQtGui.so.4
the bug is in fact due to the gtk-qt-engine hack, you should uninstall that if you want a stable installation
#9 0xb77b8bbb in IA__gdk_pixmap_new (drawable= 0x8357468, width=66, buildd/ gtk+2.0- 2.15.4/ gdk/x11/ gdkpixmap- x11.c:169 FUNCTION_ _ = "IA__gdk_ pixmap_ new" libQtGui. so.4 :drawPrimitive () from /usr/lib/ libQtGui. so.4
height=30, depth=24)
at /build/
pixmap = (GdkPixmap *) 0x0
cmap = <value optimized out>
window_depth = 24
__PRETTY_
#10 0xb640332e in ?? () from /usr/lib/
#11 0xb63f6f9e in QGtkStyle: