Internal Linux Event Snooping

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Symptom

  • Touchscreen does not respond at all

Possible Cause

  • XOrg is pointed to wrong input device


Confirmation

You can snoop on Linux input devices and see if they are reporting any events. To do so you'll need the `event' binary from GCLDEV3 located at:

/root/utils/event 

Upload this binary to the system and execute:

./event /dev/input/event0

Try each file under /dev/input, starting with event0, with a user touching the screen, until one spits out data.

When you get data back, edit /var/run/xorg.conf and edit the device under the InputDevice section. Default looks like:

Option "Device" "/dev/input/touchpack_event"