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problem with touchscreen driver

I am installing Penmount USB touchscreen drivers on Linux (Fedora).
I have xorg.conf being setup properly and I make mouse invisible using unclutter and the whole thing seems to work... sometimes! Most of the time though when I touch the screen I see erratic mouse movements. But sometimes (and worst:  I cannot figure out the pattern) it works.
Any ideas how to approach this problem are very welcome.

thnx
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ole111
Asked:
ole111
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1 Solution
 
LiganicCommented:
What shows your /var/log/Xorg.0.log ?
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ole111Author Commented:
I solved the problem. It was the old driver.
I can give 50 points to Liganic for trying to help. I think it is fair?

thnx
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LiganicCommented:
sure. Glad you could solve it, can you describe what the exact problem was, in case somebody has the same error!?
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ole111Author Commented:
The very important thing is to make sure the device line in the /etc/X11/Xorg.conf:
Option      "Device"       "/dev/input/eventX"
is corresponding to the actual pointing device.
In simple words, X ln eventX should be the same as in /proc/bus/input/devices.
I don't know if Linux can automatically adjust it.

Then, there is obviously the right driver. In my case, penmount_drv.so

And then, using the unclutter utility to make cursor disappear (although I don't know if this makes any difference)

Now,  how do I split the points?
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