Yesterday I upgraded first from Jaunty to Karmic, and immediately after that to Lucid. Most things seems to have gone well, but I have a problem with suspend/resume. After resuming my Compaq-branded wireless keyboard becomes very unresponsive. If I type quickly, only about every third key press comes through. It's possible to type if I press every key for half a second or so. It doesn't help to switch to a virtual console (with Alt-F1 for example), the problem is the same there. The wired mouse works fine. After a reboot, everything is normal.
Is this a known problem? (Googling didn't help, there are similar problems, but I didn't find this one.)
In what logs should I look to diagnose the problem?
Today, after resuming the computer, I tried to unplug the wireless receiver and plug it in again (into another USB port), and that made the problem go away. Not permanently, I presume, but it will work as a workaround until I can solve this.