diff --git a/include/hardware_caps.h b/include/hardware_caps.h
index ef2c3b0..b8a6948 100644
--- a/include/hardware_caps.h
+++ b/include/hardware_caps.h
@@ -38,8 +38,9 @@ typedef struct hw_caps
 	display_type_t display_type;
 	int display_xres;	/* x resolution or chars per line */
 	int display_yres;
-	int display_can_set_brightness;
 	int display_can_deepstandby;
+	int display_can_set_brightness;
+	int display_can_umlauts;
 	int display_has_statusline;
 	int display_has_colon;
 	int has_button_timer;
diff --git a/libarmbox/hardware_caps.c b/libarmbox/hardware_caps.c
index bd5f8a8..7d00118 100644
--- a/libarmbox/hardware_caps.c
+++ b/libarmbox/hardware_caps.c
@@ -40,6 +40,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_GFX;
 	caps.display_can_deepstandby = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_can_set_brightness = 0;	// 0 because we use graphlcd/lcd4linux
+	caps.display_can_umlauts = 0;	/* need test */
 	caps.display_has_statusline = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_has_colon = 0;
 	caps.has_button_timer = 1;
@@ -61,6 +62,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_GFX;
 	caps.display_can_deepstandby = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_can_set_brightness = 0;	// 0 because we use graphlcd/lcd4linux
+	caps.display_can_umlauts = 0;	/* need test */
 	caps.display_has_statusline = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_has_colon = 0;
 	caps.has_button_timer = 1;
@@ -81,6 +83,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_GFX;
 	caps.display_can_deepstandby = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_can_set_brightness = 0;	// 0 because we use graphlcd/lcd4linux
+	caps.display_can_umlauts = 0;	/* need test */
 	caps.display_has_statusline = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_has_colon = 0;
 	caps.has_button_timer = 1;
@@ -101,6 +104,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_GFX;
 	caps.display_can_deepstandby = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_can_set_brightness = 0;	// 0 because we use graphlcd/lcd4linux
+	caps.display_can_umlauts = 0;	/* need test */
 	caps.display_has_statusline = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_has_colon = 0;
 	caps.has_button_timer = 1;
@@ -120,6 +124,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_LED_ONLY;
 	caps.display_can_deepstandby = 0;
 	caps.display_can_set_brightness = 1;
+	caps.display_can_umlauts = 0;
 	caps.display_has_statusline = 0;
 	caps.display_has_colon = 0;
 	caps.has_button_timer = 1;
@@ -141,6 +146,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_GFX;
 	caps.display_can_deepstandby = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_can_set_brightness = 0;	// 0 because we use graphlcd/lcd4linux
+	caps.display_can_umlauts = 0;	/* need test */
 	caps.display_has_statusline = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_has_colon = 0;
 	caps.has_button_timer = 1;
@@ -160,6 +166,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_LED_ONLY;
 	caps.display_can_deepstandby = 0;
 	caps.display_can_set_brightness = 1;
+	caps.display_can_umlauts = 0;
 	caps.display_has_statusline = 0;
 	caps.display_has_colon = 0;
 	caps.has_button_timer = 1;
@@ -180,6 +187,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_LINE_TEXT;
 	caps.display_can_deepstandby = 0;
 	caps.display_can_set_brightness = 1;
+	caps.display_can_umlauts = 1;
 	caps.display_has_statusline = 0;
 	caps.display_has_colon = 0;
 	caps.has_button_timer = 1;
@@ -200,6 +208,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_LED_NUM;
 	caps.display_can_deepstandby = 0;
 	caps.display_can_set_brightness = 1;
+	caps.display_can_umlauts = 0;
 	caps.display_has_statusline = 0;
 	caps.display_has_colon = 1;
 	caps.has_button_timer = 1;
@@ -219,6 +228,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_LED_NUM;
 	caps.display_can_deepstandby = 0;
 	caps.display_can_set_brightness = 1;
+	caps.display_can_umlauts = 0;
 	caps.display_has_statusline = 0;
 	caps.has_button_timer = 1;
 	caps.has_HDMI = 1;
@@ -237,6 +247,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_LED_NUM;
 	caps.display_can_deepstandby = 0;
 	caps.display_can_set_brightness = 1;
+	caps.display_can_umlauts = 0;
 	caps.display_has_statusline = 0;
 	caps.display_has_colon = 1;
 	caps.has_button_timer = 1;
@@ -257,6 +268,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_LED_NUM;
 	caps.display_can_deepstandby = 0;
 	caps.display_can_set_brightness = 1;
+	caps.display_can_umlauts = 0;
 	caps.display_has_statusline = 0;
 	caps.display_has_colon = 1;
 	caps.has_button_timer = 1;
@@ -277,6 +289,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_LED_NUM;
 	caps.display_can_deepstandby = 0;
 	caps.display_can_set_brightness = 1;
+	caps.display_can_umlauts = 0;
 	caps.display_has_statusline = 1;
 	caps.display_has_colon = 1;
 	caps.has_button_timer = 1;
@@ -296,6 +309,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_LED_NUM;
 	caps.display_can_deepstandby = 0;
 	caps.display_can_set_brightness = 1;
+	caps.display_can_umlauts = 0;
 	caps.display_has_statusline = 1;
 	caps.display_has_colon = 1;
 	caps.has_button_timer = 1;
@@ -317,6 +331,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_GFX;
 	caps.display_can_deepstandby = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_can_set_brightness = 0;	// 0 because we use graphlcd/lcd4linux
+	caps.display_can_umlauts = 0;	/* need test */
 	caps.display_has_statusline = 0;	// 0 because we use graphlcd/lcd4linux
 	caps.display_has_colon = 0;
 	caps.has_button_timer = 1;
diff --git a/libgeneric-pc/hardware_caps.c b/libgeneric-pc/hardware_caps.c
index 5d34e91..f84720f 100644
--- a/libgeneric-pc/hardware_caps.c
+++ b/libgeneric-pc/hardware_caps.c
@@ -34,6 +34,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.has_HDMI = 1;
 	caps.display_xres = 8;
 	caps.display_can_deepstandby = 0;
+	caps.display_can_umlauts = 0; /* need test */
 	caps.display_has_statusline = 0;
 	caps.display_has_colon = 0;
 	strcpy(caps.startup_file, "");
diff --git a/libmipsbox/hardware_caps.c b/libmipsbox/hardware_caps.c
index a270206..7cd9eb2 100644
--- a/libmipsbox/hardware_caps.c
+++ b/libmipsbox/hardware_caps.c
@@ -39,6 +39,7 @@ hw_caps_t *get_hwcaps(void)
 	caps.display_type = HW_DISPLAY_LINE_TEXT;
 	caps.display_can_deepstandby = 1;
 	caps.display_can_set_brightness = 1;
+	caps.display_can_umlauts = 0;	/* need test */
 	caps.display_has_statusline = 0;
 	caps.display_has_colon = 0;
 	caps.has_button_timer = 1;
diff --git a/libspark/hardware_caps.c b/libspark/hardware_caps.c
index 89ea7f6..83b05e4 100644
--- a/libspark/hardware_caps.c
+++ b/libspark/hardware_caps.c
@@ -35,8 +35,9 @@ hw_caps_t *get_hwcaps(void)
 	caps.can_cpufreq = 1;
 	caps.can_shutdown = 1;
 	caps.display_type = HW_DISPLAY_LED_NUM;
-	caps.display_can_set_brightness = 0;
 	caps.display_can_deepstandby = 0;
+	caps.display_can_set_brightness = 0;
+	caps.display_can_umlauts = 0;
 	caps.display_has_statusline = 0;
 	caps.display_has_colon = 1;
 	caps.has_HDMI = 1;
@@ -53,6 +54,7 @@ hw_caps_t *get_hwcaps(void)
 			fprintf(stderr, "[hardware_caps] %s: VFDGETVERSION %m\n", __func__);
 		else if (val & 1) { /* VFD = 1, DVFD = 3 */
 			caps.display_type = HW_DISPLAY_LINE_TEXT;
+			caps.display_can_umlauts = 0; /* need test */
 			caps.display_xres = 8;
 			caps.display_can_set_brightness = 1;
 		}