Up, down, right arrow keys and delete key not working

Posted by user210780 on Ask Ubuntu See other posts from Ask Ubuntu or by user210780
Published on 2013-11-03T03:34:26Z Indexed on 2013/11/03 4:12 UTC
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12.04

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keyboard

I have already read Delete and arrow keys not working and tried what is written there. I have also tried restarting my computer. I have also searched elsewhere for answers, but I haven't found any solution.

I am using Ubuntu 12.04, and there were not problems yesterday, but for the last hour, I've had the following problem.

When I press the up or the right arrow, nothing happens. When I press the down arrow, it doesn't make anything go down, but something appears in the upper right corner of my screen:

http://i.imgur.com/pmnFOCD.png

When I press the delete key, nothing gets deleted, but something appears in the upper right corner of my screen:

http://i.imgur.com/Wu9czel.png

The left arrow still works. Can anybody help me get my three arrow keys and delete key back?

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