Comment 6 for bug 261873

what kind of touchscreen is that ? it will only work with devices that have a valid .fdi file, i made several calls on mailing lists and via planet.ubuntu.com to send me lshal output for devices known to have worked before with evtouch. if you own such a touchscreen, please attach your lshal output to the bug ...

i will also add better error checking to teh UDI retrieving code, in case your device isnt known by hal it shouldnt attempt to calibrate it...