mouse unstable on rc2

[Richard A. Smith]

david at lang.hm wrote:

> when I get home tonight I will lookup the exact steps for doing this and 
> give it a try. one problem is that the problem did not show up 
> immediatly (some laptops showed the problem within a half hour, others 
> didn't show it for several hours)
> 
> the four laptops that I saw the problem on over the weekend were all 
> upgraded by hitting the four game buttons while powering up (and all 
> from the same USB drive). unfortunantly I don't have a copy of that drive.

The four game buttons upgrade is the same as a copy-nand only it uses a 
signed image.  If your laptops have security enabled then thats the only 
method you will be able to use.

>> So far every time someone has claimed its build/firmware related and
>> I've asked them to prove it by going back and forth it has not held up.
> 
> what versions do you want me to switch between? at least two of the 
> machines had been vanilla 650 boxes, but one was my primary box that had 
> been updated daily to joyride (up through last wednesday)

Whatever build previously didn't have the problem.  Although since there 
can be a long delay it may be a bit harder to call it working or 
non-working.  The core of many of the issues appear to be from the 
touchpad getting out of calibration.  The exact cause is still unknown. 
  According to ALPS the capacitance the touchpad works against can 
change considerably in the XO.  Especially when an external power 
adapter is plugged in.

And if you are feeling really crazy then there have been a couple of 
different reports on the community-support list of fixing a jumpy mouse 
by using moisturizing lotion on the hands.  So if you can get a 
repeatable jumpy mouse I'd love to hear if that really does fix it.

-- 
Richard Smith  <richard at laptop.org>
One Laptop Per Child