This is from an Intuos 5, which has mostly working behaviour.
Drivers: Wacom Tablet 6.3.20-3
GTK: 3.22.7
OS: Windows 7
Other: MSYS2 MINGW64 updated as of 2017-02-09

1. Logs made with

    sleep 5 && gtk3-demo --run=event_axes --gdk-debug=INPUT,EVENTS >logN.txt

2. Logs:

   - log1.txt: an attempt to be *in* proximity in the right area at startup
   - log2.txt: *out* of proximity at startup

3. Both logs are a sequence of [dab, proximity-out, prox-in, dab] events

4. Killed with Alt+Tab, then Ctrl+C to stop gtk3-demo.
