diff --git a/src/driver/fb_accel.h b/src/driver/fb_accel.h
index 944ffc945..7225b7042 100644
--- a/src/driver/fb_accel.h
+++ b/src/driver/fb_accel.h
@@ -212,6 +212,8 @@ class CFbAccelARM
 		int scale2Res(int size);
 		bool fullHdAvailable();
 		void setOsdResolutions();
+		void setBlendMode(uint8_t mode);
+		void setBlendLevel(int level);
 #if ENABLE_ARM_ACC
 		void paintRect(const int x, const int y, const int dx, const int dy, const fb_pixel_t col);
 #endif
diff --git a/src/driver/fb_accel_arm.cpp b/src/driver/fb_accel_arm.cpp
index 4575a6314..193f7f0f6 100644
--- a/src/driver/fb_accel_arm.cpp
+++ b/src/driver/fb_accel_arm.cpp
@@ -316,6 +316,26 @@ void CFbAccelARM::setOsdResolutions()
 	}
 }
 
+/* original interface: 1 == pixel alpha, 2 == global alpha premultiplied */
+void CFbAccelARM::setBlendMode(uint8_t mode)
+{
+	/* mode = 1 => reset to no extra transparency */
+	if (mode == 1)
+		setBlendLevel(0);
+}
+
+/* level = 100 -> transparent, level = 0 -> nontransparent */
+void CFbAccelARM::setBlendLevel(int level)
+{
+	char tmp[3]={0x0};
+	int _level = 0xff - ( level * 0xff / 100);
+	sprintf(tmp,"%d", _level);
+	int pfd = open("/proc/stb/video/alpha", O_WRONLY);
+	if (pfd)
+		write(pfd, tmp, sizeof(tmp));
+	close(pfd);
+}
+
 int CFbAccelARM::setMode(unsigned int nxRes, unsigned int nyRes, unsigned int nbpp)
 {
 	if (!available&&!active)
diff --git a/src/gui/osd_setup.cpp b/src/gui/osd_setup.cpp
index dfb6d4d50..e5d7c4973 100644
--- a/src/gui/osd_setup.cpp
+++ b/src/gui/osd_setup.cpp
@@ -739,12 +739,12 @@ int COsdSetup::showOsdSetup()
 	mc->setHint("", LOCALE_MENU_HINT_ROUNDED_CORNERS);
 	osd_menu->addItem(mc);
 #endif
-#if !HAVE_ARM_HARDWARE //FIXME: make it usable for AX51
+
 	// fade windows
 	mc = new CMenuOptionChooser(LOCALE_COLORMENU_FADE, &g_settings.widget_fade, OPTIONS_OFF0_ON1_OPTIONS, OPTIONS_OFF0_ON1_OPTION_COUNT, true );
 	mc->setHint("", LOCALE_MENU_HINT_FADE);
 	osd_menu->addItem(mc);
-#endif
+
 	// window size
 	memset(window_size_value, 0, sizeof(window_size_value));
 	snprintf(window_size_value, sizeof(window_size_value), "%d / %d", g_settings.window_width, g_settings.window_height);