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[Favux <favux.is@xxxxxxxxx>]

FYI update:

The part where the Desktop was affected by flying windows and being
unable to select things as reported by Matthew Meyer (osarusan) and
trischan (cvargas-z) turned out to be a separate bug from this one.
Triggered by using xsetwacom to set the stylus or eraser to Button 1 1,
which is the driver default.  Bug was found a couple of weeks ago and
fixed upstream:
http://linuxwacom.git.sourceforge.net/git/gitweb.cgi?p=linuxwacom/xf86
-input-wacom;a=commit;h=20958f84eef0b40f91e4559099f342f28650c183  The
fix is now in the just released xf86-input-wacom-0.12.0 tar.

So this bug does appear to be Gimp specific.  See Alexia Death's
comments.

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https://bugs.launchpad.net/bugs/863154

Title:
  Wacom Bamboo One tablet random coordinate malfunctions

Status in The GNU Image Manipulation Program (GIMP):
  Unknown
Status in “gimp” package in Ubuntu:
  Confirmed

Bug description:
  The tablet in overall seems to work correctly, with all pressure-
  features working. But quite frequently, while drawing, GIMP seems to
  wrongly read the coordinates of the stylus (as zeros, or negative
  values?), resulting in frequent, random 'line-peaks' in the direction
  of the left and upper image edges. With this bug it is hard to even
  use the tablet, since these problems are very frequent (see the
  exemplary image attached).

  The tablet works with no problems in MyPaint. The bug is reproducible
  in both Unity-2d and Unity-3d.

  I also notice the CPU usage increasing dramatically during drawing
  with any brush.

  Steps to reproduce:
  1. Connect the Wacom Bamboo One tablet
  2. Open GIMP
  3. Start drawing longer strokes with any brush

  Expected result:
  The brush stroke as intended by moving the stylus

  Actual result:
  The brush stroke as intended with frequent, random line-strokes towards image edges

  System: Ubuntu 11.10 oneiric (development branch)
  GIMP version: 2.6.11 (package version: 2.6.11-2ubuntu3)

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