Comment 0 for bug 1392887

Recently I upgraded ubuntu from 14.04 to 14.10 on my HP EliteBook 2760p. After that, all serial wacom devices (for the touchscreen) are gone:
   serial wacom stylus
   serial wacom eraser
   serial wacom touch

xinput -list and xsetwacom --list don't show these devices and the Wacom Tablet section of the system setings reports 'no tablet detected' rather than showing the usual settings. Booting with the old linux 3.13 kernel makes no difference to the new version 3.16.

To find out what happened I played around on a spare partition with the following results:
1) fresh installation of 14.10 - result is the same like reported above: no touch devices
2) fresh installation of 14.04 - touch works out of the box
3) upgraded the fresh installation of trusty to utopic: touch devices gone again
4) manually changed repos to utopic after fresh installation of 14.04 and updated ONLY the xserver-xorg-input-wacom package: apt pulled some dependencies and installed without errors, touch devices gone (so it reproduces the error exactly as the full upgrade)

I haven't found a workaround, so far, but on my recherche I found a similar problem with some lenovo notebooks which have built in also the serial wacom devices. See http://askubuntu.com/questions/541505/thinkpad-x41-tablet-wacom-stylus-stopped-working-on-lubuntu-14-10
So it may not only affect the HP EliteBook. Please, can somebody confirm that?

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xserver-xorg-input-wacom 1:0.25.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.16.0-24.32-generic 3.16.4
Uname: Linux 3.16.0-24-generic x86_64
ApportVersion: 2.14.7-0ubuntu8
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Nov 14 22:51:05 2014
DistUpgraded: 2014-11-01 04:28:11,674 DEBUG enabling apt cron job
DistroCodename: utopic
DistroVariant: ubuntu
InstallationDate: Installed on 2012-10-16 (759 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
MachineType: Hewlett-Packard HP EliteBook 2760p
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-24-generic root=UUID=81ff9b66-4d33-49d5-a76f-cf1418c3e354 ro quiet splash vt.handoff=7
SourcePackage: xf86-input-wacom
UpgradeStatus: Upgraded to utopic on 2014-11-01 (13 days ago)
dmi.bios.date: 08/04/2014
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68SOU Ver. F.50
dmi.board.name: 162A
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 05.40
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68SOUVer.F.50:bd08/04/2014:svnHewlett-Packard:pnHPEliteBook2760p:pvrA0005F02:rvnHewlett-Packard:rn162A:rvrKBCVersion05.40:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP EliteBook 2760p
dmi.product.version: A0005F02
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.56-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2
xserver.bootTime: Fri Nov 14 21:19:38 2014
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 22337
 vendor SEC
xserver.version: 2:1.16.0-1ubuntu1