Ubuntu
xf86-input-evtouch package

  1. Bug #362308
  2. Comment #9

Comment 9 for bug 362308

Revision history for this message
Bryce Harrington (bryce) wrote : Re: EloTouch 2639L touchscreen (input device) possibly not properly recognized, XY axis inverted

The error "Unable to ask Elographics touchscreen identification" indicates that during the DEVICE_ON event, it couldn't get the controller to report various info (the ELO_ID). When this happens, it deactivates the device and closes the fd. So this looks like your issue.

Thus the question becomes, why does the controller not provide the requested info?