I'm running yesterday's SVN build, but the same behavior I had now for
over a year:
With the graphics tablet (wacom graphire 4), when using the pen in
"Screen" mode (or "Window" mode, both have the same results - only
"Disabled" shows the normal behavior), I can use the pen to draw lines
and move nodes (F2), but once I switch to move objects (F1), a click on
an object does not select it, only double or multiple times tapping on
it sometimes selects it for me to move it around. at the same time i can
do the selecting and moving with the normal mouse as it was before.
So clearly something is off from the behavior in XInput in Screen mode,
at least it seems the clicks (which are the taps on the tablet) are
interpreted differently. Still, in all other modes (F2 'Node' mode, draw
circles, squares etc.) the tablet in Screen mode works as expected.