ubuntu-x-swat team mailing list archive

["Wisam F. Kadhim" <234466@xxxxxxxxxxxxxxxxxx>]

Greetings to all... I have a Touchpad X41 Tablet with Ubuntu Maverick
(recently upgraded from Lucid) and I was facing the same problem with
stylus pen going crazy at random and only restarting would fix it again.
I couldn't manage to generate the events at which the pen goes crazy. it
just seems it happens at random. after digging alot and trying to build
the wacom driver from their source code (btw.. on Linux wacom project
archives, this problem was reported few times there but there seems to
be no solution or a solid walk around for it) finally after several
weeks of digging, I found this article
http://forum.thinkpads.com/viewtopic.php?f=3&t=90725 after searching in
google and it seems that one of the indications for this bug is some
random touchpad (or trackpoint for Thinkpads) to go into a certain
direction and it gets stuck there at a corner. A guy in the article
suggested a link to Lenovo's website for a solution reported to this
bug. But as it seems it didn't work as quite expected. Then another guy
(thankfully) mentioned that the problem seems to be hardware related
rather than software, he claimed that the current screening to shield
the electromagnetic interference is not enough and he installed an extra
screen (from aluminum foil) behind the touchpad screen. and that seems
to solve his problem. So.. long story short, I decided to try that, I've
installed a aluminum foil screen behind the touchpad panel and connected
it to the earthing (with the existing touchpad). So far I haven't
noticed the bug happening anymore. I will still keep monitoring the case
to see if the bug would occur again.. But so far I feel it's been a
success.

-- 
[hardy] Pen crazy in tablet PC
https://bugs.launchpad.net/bugs/234466
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