Comment 39 for bug 234466

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.