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On 2012-08-30T08:00:37+00:00 Timo Aaltonen wrote:

I get extra lines with gimp leading to the top-left corner when I touch
the buttons on my Intuos5 S while drawing. No need to touch the button
down, just showing the finger seems to be enough..

Happens with 1.12.99.905 server, kernel 3.5, -wacom 0.16+git9f32b03.

Reply at: https://bugs.launchpad.net/xf86-input-
wacom/+bug/1038615/comments/11

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On 2012-08-30T08:13:49+00:00 Timo Aaltonen wrote:

by "silent" I mean the cursor doesn't seem to jump there, but gimp shows
these streaks..

xev shows this even when that happens:

KeymapNotify event, serial 42, synthetic NO, window 0x0,
    keys:  4294967235 0   0   0   0   0   0   0   0   0   0   0   0   0   0   0 
  
           0   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0

Reply at: https://bugs.launchpad.net/xf86-input-
wacom/+bug/1038615/comments/12

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On 2012-09-13T12:36:00+00:00 Timo Aaltonen wrote:

still the same with kernel 3.6-rc5, -wacom 0.17.

Reply at: https://bugs.launchpad.net/xf86-input-
wacom/+bug/1038615/comments/14

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On 2012-09-13T22:59:04+00:00 Killertofu wrote:

After some poking around, I think I've tracked down the cause of this
behavior.

When touching (but not pressing) a button, the kernel driver mostly
ignores the hardware event it receives. The out-of-prox logic is
triggered, and we send an event indicating the pad has left proximity.
The problem is that since the pad never *entered* proximity, it can
leave the X driver a little confused.

When a new packet comes in from the kernel, the X driver uses the serial
number to find the appropriate "channel" to store event data in. It then
updates the most-recent information in that channel with the packet data
and processes the result as an event. An excess out-of-prox event starts
from an empty state, causing the driver to ask the kernel for the tool
that is currently in proximity. If it finds something, an empty event is
sent for that tool, causing a momentary jump to the top-left corner.

There are two ways I see to fix this bug: a) have the kernel send an
(empty) in-prox event for button touches so the X driver doesn't get
confused, b) have the X driver ignore out-of-prox events for already
out-of-prox tools.

Reply at: https://bugs.launchpad.net/xf86-input-
wacom/+bug/1038615/comments/16

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On 2012-09-14T04:57:57+00:00 Timo Aaltonen wrote:

I could certainly use a patch for the X driver, faster to get it
accepted as a stable update :) Don't mind if the kernel would get fixed
later.

Reply at: https://bugs.launchpad.net/xf86-input-
wacom/+bug/1038615/comments/17


** Changed in: xf86-input-wacom
       Status: Unknown => In Progress

** Changed in: xf86-input-wacom
   Importance: Unknown => Medium

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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1038615

Title:
  Wacom Intuos 5 button touch moves the cursor to the top left corner

Status in Xf86 Input Wacom:
  In Progress
Status in “xf86-input-wacom” package in Ubuntu:
  Confirmed

Bug description:
  Hi guys!

  Environment:
  ------------------
  Ubuntu 64, Kernel 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 
2012 x86_64 x86_64 x86_64 GNU/Linux
  Wacom Intuos 5 without touch (M)
  Nvidia graphics card, propriatary drivers

  $ apt-cache policy wacom-dkms
  wacom-dkms:
    Installiert: 0.13.0-0ubuntu1~ppa1
    Kandidat:    0.13.0-0ubuntu1~ppa1
    Versionstabelle:
   *** 0.13.0-0ubuntu1~ppa1 0
          500 http://ppa.launchpad.net/lekensteyn/wacom-tablet/ubuntu/ 
precise/main amd64 Packages
          100 /var/lib/dpkg/status

  My issue
  -----------
  Installed the wacom-dkms (http://wiki.ubuntuusers.de/Wacom_USB-Tabletts from 
this ppa ppa:lekensteyn/wacom-tablet) package because Ubuntu 12.04 does not 
deliver Intuos 5 support out of the box. With this package the intuos drawing 
area works perfect, but When I touch one of the tablet buttons on the left side 
with my finger (I don't need to press them) the cursor jumps up in the top left 
corner, making this tablet unusable for me!

  The pen has to be above the tablet too, to recognize the jump (using
  gnome3, the exposee feature is triggered then what is even more
  annoying)

  Greetings Thomas Beck

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