Mouse release event posted out of order

[Aaron Johnson]

This is on Ubuntu 9.10 on a Dell Inspiron 8200 laptop.  The laptop has a 
track point (thinkpad style) with two mouse buttons below the keyboard 
and a touchpad with two more buttons below it.

The problem is that at times when clicking the left mouse button 
normally, it seems to get stuck in a pressed state causing inadvertent 
dragging, scrolling, highlighting depending on where the pointer is at 
the time.  It can be resolved by moving the pointer with the touchpad, 
causing the ButtonRelease event.  The problem doesn't happen every time, 
but is very common that I can usually reproduce it in xev within a few 
mouse clicks.  It seems to be worse with high CPU activity.  Attached is 
output from xev (leading and trailing events removed).  What I did was 
click the left button (pressed and released, but no release event 
shows), then moved the track point stick, causing the MotionNotify 
events, then touched/moved the pointer from the touch pad, causing the 
ButtonRelease event.  Notice the press/release events are separated by a 
large time, so either something in the driver is causing the release 
event to be posted, or somehow it is being posted out of order.

I looked both xorg's bug DB and mailing list archives but couldn't find 
anything obviously similar (different grab problems, xinerama related 
things, etc).  I've reproduced this in both Ubuntu 9.10 and Fedora 12.   
I previously had Ubuntu 9.04 installed and never had this problem.  I 
can reproduce the problem with or without the nvidia drivers, and with 
or without specific server layout in xorg (see commented out section in 
xorg.conf).
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