1 files changed, 10 insertions, 5 deletions
diff --git a/experimental/tqtinterface/qt4/src/kernel/tqpaintdevice_x11.cpp b/experimental/tqtinterface/qt4/src/kernel/tqpaintdevice_x11.cpp
index 243260741..fd4cc0b36 100644
--- a/experimental/tqtinterface/qt4/src/kernel/tqpaintdevice_x11.cpp
+++ b/experimental/tqtinterface/qt4/src/kernel/tqpaintdevice_x11.cpp
@@ -1105,11 +1105,16 @@ static void create_dpis()
     TQ_CHECK_PTR( dpisX );
     TQ_CHECK_PTR( dpisY );
     for ( i = 0; i < screens; i++ ) {
-	dpisX[ i ] = (DisplayWidth(dpy,i) * 254 + DisplayWidthMM(dpy,i)*5)
-
-		     / (DisplayWidthMM(dpy,i)*10);
-	dpisY[ i ] = (DisplayHeight(dpy,i) * 254 + DisplayHeightMM(dpy,i)*5)
-		     / (DisplayHeightMM(dpy,i)*10);
+       if (DisplayWidthMM(dpy,i) < 1)
+               dpisX[ i ] = 75; // default the dpi to 75.
+       else
+               dpisX[ i ] = (DisplayWidth(dpy,i) * 254 + DisplayWidthMM(dpy,i)*5)
+                     / (DisplayWidthMM(dpy,i)*10);
+       if (DisplayHeightMM(dpy,i) < 1)
+               dpisY[ i ] = 75; // default the dpi to 75.
+       else
+               dpisY[ i ] = (DisplayHeight(dpy,i) * 254 + DisplayHeightMM(dpy,i)*5)
+                     / (DisplayHeightMM(dpy,i)*10);
     }
 }