/usr/share/libwacom/dtu-1931.tablet is in libwacom-common 0.18-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | # Wacom
# DTU-1931 Interactive Pen Display
#
[Device]
Name=Wacom DTU-1931
DeviceMatch=usb:056a:00c7
Width=15
Height=12
Class=PenDisplay
IntegratedIn=Display
[Features]
Stylus=true
Buttons=0
BuiltIn=true
|