+## Mouse pointer freezed or keyboard unresponsive
+
+This can happen with a USB mouse or keyboard, especially if:
+
+1. You use a KVM switch or
+2. You have switched to a linux console and back to X
+
+Other symptoms: the leds on the keyboard don't change when you hit caps lock,
+or the leds on keyboard or mouse are off. Simply unplug and plug again the device
+can solve the issue.
+
+You can verify after the fact that syslog contains messages about USB disconnections
+of these devices. I know no real definite solution to these issues.
+