Actually looks like this might be a symptom of a larger issue due to
wacom drivers and Xorg 7.3...

Here's more detailed information on the bug...
http://sourceforge.net/tracker/index.php?func=detail&aid=1891727&group_id=163434&atid=827733

So maybe we don't close this or we point it at this upstream bug...


>From the link above:
* Short fix without recompiling: uncheck the "Use XInput" box in the
Options menu (perhaps simplest given that high-resolution input seems to be
broken with the current version of linuxwacom). Or else, check both
"Use XInput" *and* "Discard Core Events", but this may break ability to do
anything with a mouse depending on your xorg.conf. In both cases, you won't
get better than screen resolution (the resolution of the wacom
tablet is decreased to screen resolution when using linuxwacom 0.7.9 with X
7.3). But do not keep "Use Xinput" checked and "Discard Core Events"
unchecked as is the default.

* Slightly better fix (but it won't make things any better for the time
being, it just fixes the extra ugliness, slowness, and display lag when
"Use XInput" is checked and "Discard Core Events" is unchecked -- and
should make things better once linuxwacom is fixed): add a new line after
line 2525 of src/xo-callbacks.c (in version 0.4.1; in general this goes
after the line containing a call to fix_xinput_coords() at the beginning of
on_canvas_motion_notify_event()), containing:

if (!is_core) ui.is_corestroke = FALSE;

End of the answer if all you care about is "how". If you want to know
"why", read on.

-- 
Cursor moves but does not show drawn line in real-time
https://bugs.launchpad.net/bugs/199999
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