Description of problem:
Sometimes during normal keyboard use, the control, shift, and all the lock keys
stop working as expected.  I've used xev to verify that keypress/release events
are being generated when I press these keys, but they do not have the desired
function.  For example, pressing caps lock does not toggle between upper and
lower case characters in a terminal window, and Control-X Control-S in Xemacs
just displays the characters "xs" in the editor window.  The LEDs on the
keyboard do not light when locking keys are pressed.  My main keyboard is
Logitech Cordless Desktop Pro, but I have plugged in a generic PS/2 keyboard and
seen the same symptoms.
The problems dissapear after I log out of the desktop and then log back in.

Version-Release number of selected component (if applicable):


How reproducible:
Not easily reproducible.  Bug occurs perhaps once every other day of work. No
known steps to reliably reproduce.

Actual results:
Control, shift, num lock, and caps lock keys stop working normally

Expected results:
Control, shift, num lock, and caps lock keys should work normally

Additional info:
It's worth noting that I frequently use vmware to do some software development
inside a windows environment.  When this bug occurs, and my shift/control/etc
keys are not working correctly in linux, they still work correctly in the vmware
guest OS.