desktop-packages team mailing list archive

[Łukasz Zemczak <863154@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

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)

** Affects: gimp (Ubuntu)
     Importance: Undecided
         Status: New

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

Title:
  Wacom Bamboo One tablet random coordinate malfunctions

Status in “gimp” package in Ubuntu:
  New

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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