Bug 27520

Summary: Wacom Intuos2 tablet works only when plugged in before booting
Product: xorg Reporter: komputes <komputes>
Component: Input/wacomAssignee: Xorg Project Team <xorg-team>
Status: RESOLVED INVALID QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: 7.4 (2008.09)   
Hardware: x86 (IA32)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description komputes 2010-04-07 12:04:00 UTC 
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

Xorg.0.log shows:
(EE) Wacom Intuos2 4x5: usbParse: Ignoring event from invalid serial 0

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

More logs and attachments from a system with this issues can be found on the original bug reported here:
http://launchpad.net/bugs/532137
Comment 1 Chris Bagwell 2010-10-22 10:01:50 UTC 
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
Comment 2 Adam Jackson 2018-06-12 19:07:14 UTC 
Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you continue to experience issues with current releases.

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