After waking up from suspend, the keyboard doesn’t work properly
This is not specific to Ubuntu 13.04; I had this problem before too. That is, after waking up the machine from a suspend, the keyboard doesn’t work properly. Not all key presses are accepted, only about 70% of them. Hitting the keys stronger helps but I don’t want to break the keyboard :)
I’ve found a stupid workaround but it works :) It’s a USB keyboard and pulling out the cable and reconnecting it fixes the issue. If someone has a more elegant solution, please tell me.