I upgraded from Ubuntu 11 to 12.04, today, and everything seemed to go smoothly up to, and including the reboot. However, I now find that my mouse and keyboard no longer function, so I cannot login or otherwise use my computer. I have read other posts on this topic, but most of the answers seem to require the use of a keyboard to implement the solution--and I can't use my keyboard! I downloaded a 12.04 LiveCD and tried booting from it, but I have the same issue with that--no keyboard! My systems is a Lenovo with an AMD64 dual processor, and my keyboard and mouse are USB attached and shared with two other Windows PCs via a KVM switch (so I no the keyboard and mouse work!). I would appreciate some hints about how to make this PC usable, again. Thanks!
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closed as off topic by Jorge Castro, Ringtail, Mik, belacqua, Amith KK Oct 26 '12 at 6:26
Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined in the FAQ. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about closed questions here.
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I had that a couple of times before, just try to remove the USB's of the keyboard and mouse and plug them into another slot, then reboot. Usually works for me! |
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What kind of KVM do you have (does the brand show in sudo lspci or sudo lsusb ?)? Does it have a power supply? After I verified that plugging the kbd/mouse straight into the computer works, I would then reset the power and all the connections to the KVM and try it again. |
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