diff -Naur xorg-server-1.12.3/hw/kdrive/linux/evdev.c xorg-server-1.12.3-magellan/hw/kdrive/linux/evdev.c
--- xorg-server-1.12.3/hw/kdrive/linux/evdev.c	2012-06-26 06:12:50.000000000 +0200
+++ xorg-server-1.12.3-magellan/hw/kdrive/linux/evdev.c	2012-08-21 16:49:17.955981151 +0200
@@ -191,6 +191,8 @@
     "/dev/input/event1",
     "/dev/input/event2",
     "/dev/input/event3",
+    "/dev/input/event4",
+    "/dev/input/event5",
 };
 
 #define NUM_DEFAULT_EVDEV    (sizeof (kdefaultEvdev) / sizeof (kdefaultEvdev[0]))
@@ -200,15 +202,29 @@
 {
     int i;
     int fd;
+    int                ret;
+    unsigned long   ev[NBITS(EV_MAX)];
 
     if (!pi->path) {
         for (i = 0; i < NUM_DEFAULT_EVDEV; i++) {
-            fd = open(kdefaultEvdev[i], 2);
-            if (fd >= 0) {
+            if ((fd = open (kdefaultEvdev[i], 2)) < 0) {
+                continue;
+            }
+            ret = ioctl (fd, EVIOCGBIT (0, sizeof (ev)), ev);
+            close (fd);
+            if (ret < 0) {
+                ErrorF("EVIOCGBIT 0\n");
+               continue;
+		}
+            if (ISBITSET (ev, EV_KEY) && ISBITSET (ev, EV_REL)) {
                 pi->path = strdup(kdefaultEvdev[i]);
                 break;
             }
         }
+        if (!pi->path) {
+            ErrorF("Failed to find a valid mouse device\n");
+            return BadMatch;
+        }
     }
     else {
         fd = open(pi->path, O_RDWR);
@@ -216,10 +232,8 @@
             ErrorF("Failed to open evdev device %s\n", pi->path);
             return BadMatch;
         }
+        close(fd);
     }
-
-    close(fd);
-
     pi->name = strdup("Evdev mouse");
 
     return Success;