Description: Enable normal up/down events for Caps-Lock and Num-Lock keys
 by setting SDL_DISABLE_LOCK_KEYS (which requires SDL > 1.2.14). This fixes
 handling of capslock when capslock is mapped to something else in host system.
Author: Benjamin Drung <bdrung@ubuntu.com>
Bug-Ubuntu: https://launchpad.net/bugs/427612

--- a/ui/sdl.c	2010-10-20 15:31:32 +0000
+++ b/ui/sdl.c	2010-11-24 14:20:02 +0000
@@ -390,12 +390,6 @@
         else
             modifiers_state[keycode] = 1;
         break;
-    case 0x45: /* num lock */
-    case 0x3a: /* caps lock */
-        /* SDL does not send the key up event, so we generate it */
-        kbd_put_keycode(keycode);
-        kbd_put_keycode(keycode | SCANCODE_UP);
-        return;
     }
 
     /* now send the key code */
@@ -833,6 +827,10 @@
         setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 0);
     }
 
+    // Enable normal up/down events for Caps-Lock and Num-Lock keys.
+    // This requires SDL >= 1.2.14
+    setenv("SDL_DISABLE_LOCK_KEYS", "1", 1);
+
     flags = SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE;
     if (SDL_Init (flags)) {
         fprintf(stderr, "Could not initialize SDL(%s) - exiting\n",