Comment 9 for bug 186264

Please create the following files immediately after you've logged in:
dmesg > ~/dmesg_boot
cp /var/log/Xorg.0.log ~/Xorg.0.log
Try to replug the keyboard or access a terminal at your computer using VPN, SSH or similar.
Now create the following files:
dmesg > ~/dmesg
diff -ns ~/dmesg_boot ~/dmesg > ~/dmesg_diff
cp /var/log/Xorg.0.log ~/Xorg.0.log_tmp
diff -ns ~/Xorg.0.log ~/Xorg.0.log_tmp > ~/Xorg.0.log_diff

I'm assuming you want this to be done right after it fails and I logout and back in? If that is the case, it may be some time as I do not know how to reproduce the error, just throw my keyboard in the trash when it happens in the middle of something I'm typing.