Comment 2 for bug 549447

The above happened while the usbtouchscreen module was blacklisted (this was needed for the eGalax module). If I let the usbtouchscreen module load, the touchscreen is configured as a touchscreen.
But 'xinput list-props' shows only two axis labels (Abs X and Abs Y), and only part of the touches are registered. 'xinput test' shows very little output (a simple movement shows a couple of lines) while touching all over the screen, e.g. it shows 'button press', then I touch the screen a lot, it shows some 'motion...' output, and then after some touching it shows 'button release'.

If I then do 'rmmod usbtouchscreen' and plug the touchscreen (usb) out and back in, the touchscreen is configured as tablet and all touches make the cursor go to the upper left corner. It is also showing 4 axis labels (Abs X, Y, Z and Rotary X). 'xinput test' shows considerably more output than before (where a simple movement now shows 100 lines)

If I then load the usbtouchscreen module again (modprobe usbtouchscreen) and plug the touchscreen out and in, it stays registered as tablet (also after X restart, should that matter).