Warnings when using a Wacom Cintiq Pro 16 (DTH-1620)

[jcpearson]

When using a Cintiq Pro 16, wacom-gui gives the following warnings:

Cannot find device 'None cursor'.
Cannot find device 'None cursor'.
QPainter::begin: Paint device returned engine == 0, type: 2
QPainter::font: Painter not active
QPainter::setFont: Painter not active
QPainter::setPen: Painter not active
QPainter::end: Painter not active, aborted

I believe this is because this tablet doesn't have a cursor device:

% xsetwacom --list
Wacom Cintiq Pro 16 Pen stylus          id: 8   type: STYLUS    
Wacom Cintiq Pro 16 Pen eraser          id: 15  type: ERASER    
Wacom Cintiq Pro 16 Touch Finger touch  id: 16  type: TOUCH  

[tb2097]

Closing this issue as it is related to the 0.2.x releases and I have no plans to further maintain it.