src/java.desktop/unix/classes/sun/java2d/x11/X11SurfaceData.java

@@ -70,11 +70,11 @@
     X11GraphicsConfig graphicsConfig;
     private RenderLoops solidloops;
 
     protected int depth;
 
-    private static native void initIDs(Class<?> xorComp, boolean tryDGA);
+    private static native void initIDs(Class<?> xorComp);
     protected native void initSurface(int depth, int width, int height,
                                       long drawable);
 
     public static final String
         DESC_INT_BGR_X11        = "Integer BGR Pixmap";

@@ -211,16 +211,12 @@
     protected static boolean dgaAvailable;
 
     static {
        if (!isX11SurfaceDataInitialized() &&
            !GraphicsEnvironment.isHeadless()) {
-            // If a screen magnifier is present, don't attempt to use DGA
-            String magPresent = java.security.AccessController.doPrivileged
-                (new sun.security.action.GetPropertyAction("javax.accessibility.screen_magnifier_present"));
-            boolean tryDGA = magPresent == null || !"true".equals(magPresent);
 
-            initIDs(XORComposite.class, tryDGA);
+            initIDs(XORComposite.class);
 
             String xtextpipe = java.security.AccessController.doPrivileged
                 (new sun.security.action.GetPropertyAction("sun.java2d.xtextpipe"));
             if (xtextpipe == null || "true".startsWith(xtextpipe)) {
                 if ("true".equals(xtextpipe)) {

@@ -237,25 +233,18 @@
                     System.out.println("using DGA text renderer");
                 }
                 x11textpipe = solidTextRenderer;
             }
 
-            dgaAvailable = isDgaAvailable();
-
             if (isAccelerationEnabled()) {
                 X11PMBlitLoops.register();
                 X11PMBlitBgLoops.register();
             }
        }
     }
 
     /**
-     * Returns true if we can use DGA on any of the screens
-     */
-    public static native boolean isDgaAvailable();
-
-    /**
      * Returns true if shared memory pixmaps are available
      */
     private static native boolean isShmPMAvailable();
 
     public static boolean isAccelerationEnabled() {

@@ -275,14 +264,13 @@
                     if (ge instanceof SunGraphicsEnvironment) {
                         isDisplayLocal = ((SunGraphicsEnvironment) ge).isDisplayLocal();
                      }
 
                     // EXA based drivers tend to place pixmaps in VRAM, slowing down readbacks.
-                    // Don't use pixmaps if dga is available,
-                    // or we are local and shared memory Pixmaps are not available.
-                    accelerationEnabled =
-                        !(isDgaAvailable() || (isDisplayLocal && !isShmPMAvailable()));
+                    // Don't use pixmaps if we are local and shared memory Pixmaps
+                    // are not available.
+                    accelerationEnabled = !(isDisplayLocal && !isShmPMAvailable());
                 }
             }
         }
         return accelerationEnabled.booleanValue();
     }