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When I log in, neither of my USB devices is seen. It's really driving me round the bend, I have USB keyboard and mouse connected. I have to unplug them then plug again and only then it works correctly.

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how do you log in if they don't get recognised? can you post the output of lsusb to your initial question –  Mark Rooney Jul 6 '12 at 23:40
    
He said un/re-plugging solves the problem. BTW, welcome to Ask Ubuntu! Please share the content or output of the following commands/files to better help us troubleshoot your problem (instructions in this answer): file(s): /var/log/kern.log, command(s): dmesg, lsusb –  izx Jul 7 '12 at 0:17
    
I've got netbook. –  pawel Jul 8 '12 at 21:44

1 Answer 1

I have a similar issue with a wireless mouse that sometimes fails to boot up. Unplugging and re-plugging the receiver solves it. Someone once told me the receivers 'wear out'. Certainly it never used to happen, and the mouse concerned is getting old (i.e. about a year).

But IDK why a wired USB would fail in this way. (Or are we talking about a wireless k/b & mouse here?)

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