My keyboard started acting really weird after upgraded to Ubuntu Gutsy 7.10. There is a noticeable delay between key strokes, or sometimes the keys repeated itself like crazy. This strange behaviour was really annoying and drove me nuts. After googling and tried to fix it myself, none of the solution fixed my problem. Eventually I discovered the following message kept on repeating in /var/log/messages
usb 1-2: reset low speed USB device using ohci_hcd and address 5
I tried to unplug my USB mouse and webcam, changed them into another USB ports then the messages stopped. Apparently that was the cause of the keyboard issue and more! I had failed to burn several DVDs with k3b and other burning tools previously, it was also contributed by this crazy USB port behaviour. Still not sure what is this problem, perhaps incompatibility with some USB ports on the motherboard or my USB port has problems…
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