[Dell Inspiron 2350] Touchscreen response shifted with external monitor connected

[Po-Hsu Lin]

CID: 201305-13670 Dell Inspiron 2350

When connected to a non-touch external monitor, the touchscreen on this system seems to be "shifted".
The cursor no longer jump to where you touch the screen, but it landed on the right side instead, see the attached picture for a click-and-drag result.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-32-generic 3.13.0-32.57 [modified: boot/vmlinuz-3.13.0-32-generic]
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: ubuntu 1705 F.... pulseaudio
 /dev/snd/controlC0: ubuntu 1705 F.... pulseaudio
CRDA:
 country TW:
  (2402 - 2472 @ 40), (3, 27)
  (5270 - 5330 @ 40), (3, 17), DFS
  (5735 - 5815 @ 40), (3, 30)
CurrentDesktop: Unity
Date: Wed Oct 22 22:59:20 2014
HibernationDevice: RESUME=UUID=6ce5638a-313b-43d2-8def-91a019f94f3d
InstallationDate: Installed on 2014-10-22 (1 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
MachineType: Dell Inc. Inspiron 2350
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-32-generic.efi.signed root=UUID=2fbfe78e-1f35-4822-bf6f-24f529a853f7 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-32-generic N/A
 linux-backports-modules-3.13.0-32-generic N/A
 linux-firmware 1.127.5
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/02/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A02
dmi.board.name: 0P4T42
dmi.board.vendor: Dell Inc.
dmi.board.version: X02
dmi.chassis.type: 13
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 00
dmi.modalias: dmi:bvnDellInc.:bvrA02:bd09/02/2013:svnDellInc.:pnInspiron2350:pvr00:rvnDellInc.:rn0P4T42:rvrX02:cvnDellInc.:ct13:cvr00:
dmi.product.name: Inspiron 2350
dmi.product.version: 00
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Po-Hsu Lin (cypressyew)]

This issue cannot be reproduced on a laptop with touchscreen, so I think it's the issue of this touchscreen
ubuntu@201305-13670:~$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ USB Optical Mouse id=11 [slave pointer (2)]
⎜ ↳ Advanced Silicon S.A CoolTouch(TM) System id=13 [slave pointer (2)]
⎜ ↳ Microsoft Bluetooth Notebook Mouse 5000 id=15 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
    ↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
    ↳ Power Button id=6 [slave keyboard (3)]
    ↳ Video Bus id=7 [slave keyboard (3)]
    ↳ Video Bus id=8 [slave keyboard (3)]
    ↳ Power Button id=9 [slave keyboard (3)]
    ↳ Integrated_Webcam_FHD id=10 [slave keyboard (3)]
    ↳ LITE-ON Technology USB NetVista Full Width Keyboard. id=12 [slave keyboard (3)]
    ↳ Dell AIO WMI hotkeys id=14 [slave keyboard (3)]

[penalvch (penalvch)]

Po-Hsu Lin / Anthony Wong, as per http://www.dell.com/support/home/us/en/04/product-support/product/inspiron-2350-aio/drivers an update to your BIOS is available (A05). If you update to this following https://help.ubuntu.com/community/BiosUpdate does it change anything? If it doesn't, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

[Anthony Wong (anthonywong)]

@PHLin

Does http://discourse.ubuntu.com/t/dual-touch-screen-monitors-working-on-14-04/1675 and http://askubuntu.com/questions/51445/how-do-i-calibrate-a-touchscreen-on-a-dual-monitor-system give you some help?

[Po-Hsu Lin (cypressyew)]

Hello Anthony,

With the steps described in the first link, I'm able to map the touchscreen input device (Advanced Silicon S.A CoolTouch(TM) System) back to the AIO's touchscreen, after that, it works as expected.

[Po-Hsu Lin (cypressyew)]

For the record, this bug should be reported to upstream.
http://www.freedesktop.org/wiki/Software/xorg/ see Bugzilla section.