Hi,

We have several gumstix overo with chestnut expansion board and LCD touch screen.

They boot OK and display the default desktop, but the touch screen is virtually unusable.

It is even a challenge to run the calibration utility (forced by removing /etc/pointercal). I had to resort to using one of the gumstix aerials as a stylus, as the touch screen would not accept any of my finger presses.

We are using a pre-built image from October 2010:

$ uname -a
Linux gumstix1 2.6.34 #1 Wed Oct 13 12:00:38 PDT 2010 armv7l GNU/Linux


Overo # printenv
dvimode=1024x768MR-16@60
defaultdisplay=lcd43

How can I fix this?

Thanks,

Derek