I have ubuntu installed on my laptop and I use it with a keyboard and mouse usb. It all works fine, until it wakes up from suspend. Then the keyboard sometimes doesn't send the key I press. I have to press it sometimes until I get it on the screen. If I remove the usb and put it back, it works properly again. This just happens to the keyboard - the mouse keeps working fine.
Anybody knows why this happens?
Edit: My ubuntu version is 11.10. Keyboard Wise WSKB - 0003. Laptop Positivo Sim+. Obs: when waking up in windows 7 i don't have this problem.