diff -r 17723c0b042b keymaps.c
--- a/keymaps.c	Thu Sep 02 16:40:39 2010 +0800
+++ b/keymaps.c	Thu Sep 02 17:26:53 2010 +0800
@@ -51,6 +51,7 @@
     struct key_range *numlock_range;
     struct key_range *shift_range;
     struct key_range *localstate_range;
+    struct key_range *altgr_range;
 } kbd_layout_t;
 
 static void add_to_key_range(struct key_range **krp, int code) {
@@ -133,7 +134,11 @@
 			add_to_key_range(&k->localstate_range, keycode);
 			//fprintf(stderr, "localstate keysym %04x keycode %d\n", keysym, keycode);
 		    }
-
+		    if (rest && strstr(rest, "altgr")) {
+			add_to_key_range(&k->altgr_range, keysym);
+			//fprintf(stderr, "altgr keysym %04x keycode %d\n", keysym, keycode);
+		    }
+	
 		    /* if(keycode&0x80)
 		       keycode=(keycode<<8)^0x80e0; */
 		    if (keysym < MAX_NORMAL_KEYCODE) {
@@ -233,3 +238,16 @@
 	    return 0;
     return 1;
 }
+
+static inline int keysym_is_altgr(void *kbd_layout, int keysym)
+{
+    kbd_layout_t *k = kbd_layout;
+    struct key_range *kr;
+
+    for (kr = k->altgr_range; kr; kr = kr->next)
+        if (keysym >= kr->start && keysym <= kr->end){
+            return 1;
+	}
+    return 0;
+}
+
diff -r 17723c0b042b vnc.c
--- a/vnc.c	Thu Sep 02 16:40:39 2010 +0800
+++ b/vnc.c	Thu Sep 02 17:26:53 2010 +0800
@@ -1274,12 +1274,27 @@
     }
 }
 
+static void press_key_altgr_down(VncState *vs, int down)
+{
+    kbd_put_keycode(0xe0);
+    if (down){
+        kbd_put_keycode(0xb8 & 0x7f);
+        vs->modifiers_state[0xb8] = 1;
+    }
+    else {
+        kbd_put_keycode(0xb8 | 0x80);
+        vs->modifiers_state[0xb8] = 0;
+    }
+}
+
 static void do_key_event(VncState *vs, int down, uint32_t sym)
 {
     int keycode;
     int shift_keys = 0;
     int shift = 0;
     int keypad = 0;
+    int altgr = 0;
+    int altgr_keys = 0;
 
     if (is_graphic_console()) {
         if (sym >= 'A' && sym <= 'Z') {
@@ -1289,8 +1304,11 @@
         else {
             shift = keysym_is_shift(vs->kbd_layout, sym & 0xFFFF);
         }
+
+        altgr = keysym_is_altgr(vs->kbd_layout, sym & 0xFFFF);
     }
     shift_keys = vs->modifiers_state[0x2a] | vs->modifiers_state[0x36];
+    altgr_keys = vs->modifiers_state[0xb8];
 
     keycode = keysym2scancode(vs->kbd_layout, sym & 0xFFFF);
     if (keycode == 0) {
@@ -1357,6 +1375,11 @@
     }
 
     if (is_graphic_console()) {
+
+        if (altgr && !altgr_keys) {
+            press_key_altgr_down(vs, down);
+        }
+
         /*  If the shift state needs to change then simulate an additional
             keypress before sending this one. Ignore for non shiftable keys.
         */