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[Bug 532137]

 

I quickly looked at the Xorg.log files from launchpad below.  Right
after hotplug of tablet, usbParse() goes in infinite loop and prints
message about invalid serial #.  Not positive its infinite loop but at
least the log stops with no messages beyond repeating error message.  If
you wait long enough, perhaps the tablet corrects itself?

Intuos1 and Intuos2 are unique in that they get serial # from hardware
itself and used by xf86-input.wacom.  Serial # is a unique value that
allows tracking multiple tools at once.

You've found a case were tablet streams out packets in a way that serial
# is sent as zero.  Either tablet is saying a zero value or else an if()
statement is getting confused and not allowing to init values correctly.

This is all on kernel side, BTW.

Since I do not own own of these tablets, I do not have much more to
offer.  I can only say it appears mostly a kernel side bug from
information so far.

BTW: the best place to discuss wacom bugs is at project page bug tracker
or mailing list:  http://linuxwacom.sourceforge.net

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https://bugs.launchpad.net/bugs/532137

Title:
  Wacom Intuos2 tablet hotplug only works once after booting

Status in X.Org X server:
  Invalid
Status in linux package in Ubuntu:
  Incomplete
Status in xf86-input-wacom package in Ubuntu:
  Incomplete

Bug description:
  Binary package hint: xserver-xorg-input-wacom

  The following two tablets do not work out plug-and-play of the box in
  Lucid:

  056a:0041 Wacom Co., Ltd Intuos2 4x5
  056a:0044 Wacom Co., Ltd Intuos2 12x12

  messages/syslog:
  Mar  4 14:17:37 cool kernel: [94581.248021] usb 3-2: new full speed USB device using uhci_hcd and address 6
  Mar  4 14:17:37 cool kernel: [94581.416147] usb 3-2: configuration #1 chosen from 1 choice
  Mar  4 14:17:37 cool kernel: [94581.419397] input: Wacom Intuos2 4x5 as /devices/pci0000:00/0000:00:1a.0/usb3/3-2/3-2:1.0/input/input18

  ProblemType: Bug
  Architecture: i386
  Date: Thu Mar  4 14:36:17 2010
  DistroRelease: Ubuntu 10.04
  Package: xserver-xorg-input-wacom 1:0.10.3+20100109-1ubuntu1
  ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-15-generic root=/dev/mapper/hostname-root ro quiet splash
  ProcEnviron:
   PATH=(custom, user)
   LANG=en_US.utf8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-15.22-generic
  SourcePackage: nvidia-graphics-drivers
  Uname: Linux 2.6.32-15-generic i686
  dmi.bios.date: 06/05/2006
  dmi.bios.vendor: Intel Corp.
  dmi.bios.version: MQ96510J.86A.0372.2006.0605.1717
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: DG965MQ
  dmi.board.vendor: Intel Corporation
  dmi.board.version: AAD37419-102
  dmi.chassis.type: 2
  dmi.modalias: dmi:bvnIntelCorp.:bvrMQ96510J.86A.0372.2006.0605.1717:bd06/05/2006:svn:pn:pvr:rvnIntelCorporation:rnDG965MQ:rvrAAD37419-102:cvn:ct2:cvr:
  glxinfo: Error: [Errno 2] No such file or directory
  system:
   distro:             Ubuntu
   codename:           lucidarchitecture:       i686kernel:             2.6.32-15-generic

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