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I installed Ubuntu 11.10 after booting it from a USB drive. Everything worked fine there, after booting the keyboard worked in grub but not after Ubuntu was booted. I can unplug either of them and plug them in via a PS2/USB adapter and the device will work. After switching a couple of times, I got the keyboard and mouse both working via usb but after I rebooted either stopped working. How can I fix this?

The mouse is a Razer Krait and the keyboard is a Logitech ClassicKeyboard 200.

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closed as off topic by jrg May 21 '12 at 20:34

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Check if the devices show up in lsusb. –  Anonymous Nov 1 '11 at 19:55
I find that some times if you just let the computer sit for about ten minutes the mouse and keyboard come back up. –  user32562 Nov 6 '11 at 14:00
that may be the case, yes. but thats not a solution to the problem. –  crstn Nov 6 '11 at 17:29
Try the workaround mentioned in this bug report - the bug is known to cause delays with some input devices. –  htorque Jan 2 '12 at 21:56

protected by Community Apr 19 '12 at 8:23

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