Neeum Zawan <m.n### [at] ieeeorg> wrote:
>  Just tried it right now (30s unplugged). Plugged it back in. Works
> fine. Could this be a kernel thing? Perhaps my kernel is more recent?
> dmesg doesn't show anything...
>
>  OK. Weird. I just unplugged again and replugged it in within 2-3
> seconds, and the keyboard didn't work. I unplugged it and waited over 45
> seconds, and plugged it back in. It works now. No reboot, no reloading of X.

Maybe because the hardware wasn't designed to inform the software of a plug-in
event, so the OS (well, keyboard driver, to be precise) needs to poll at
regular intervals to detect the keyboard was absent, in order to re-initialize
the hardware?

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