desktop-packages team mailing list archive

[Douglas Griffin <863154@xxxxxxxxxxxxxxxxxx>]

@yorugecko:  Viewed the video at
http://www.youtube.com/watch?v=MuL2RGTnl1I. Could you be more specific
regarding what you mean by "a partial upgrade"?  I seem to have the bug
over multiple desktop versions of Ubuntu 11.10 with GIMP and two Genius
Mousepad 8x6 tablets. For me the symptoms are least using XUBUNTU
desktop but still present. It takes me maybe a minute to 90 seconds for
it to show up drawing in pencil mode doing fast circles by hand. Could
you try scribbling for about three minutes just in pencil mode and see
what happens rather than jumping around different functions. If the
problem doesn't show up then give us a rundown on what you did to fix
it.

If you have a fix go over to www.davidrevoy.com and tell David so he can
test and post it on his blog. He is the art director for the Blender
Foundation and a lot of people in the computer graphics art community
are pulling their hair out over this. He has a setup for installing and
modifying Linux Mint ver. 11.04 to prevent having various annoying bugs.
See: http://www.davidrevoy.com/index.php?article95/linux-mint-11
-install-notes.

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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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