Ubuntu
xserver-xorg-input-evdev package

"Cando" Touchscreen buggy since Precise - After the first few successful "clicks" on the touchscreen, new "clicks" are not registered anymore.

Bug #946417 reported by ove on 2012-03-04

This bug affects 13 people

Affects		Status	Importance	Assigned to	Milestone
	xserver-xorg-input-evdev (Ubuntu)	Expired	Low	Unassigned

Bug Description

In the beta-1 of Precise, the "Cando" touchscreen of my Acer 1825PTZ does not work anymore. After the first few successful "clicks" on the touchscreen, new "clicks" are not registered anymore. I can still move the cursor via the touchscreen, however.
When I switch over to the mouse in this state, it also stops registering clicks after a few of them. The mouse can still move the cursor, just as the touchscreen. Sometimes, the pointer will jump to an entirely different position, when I click a button on the mouse while the touchscreen is bugged out. If I do not use the touchscreen at all, and only the mouse, this behaviour does not seem to trigger.
My touchscreen worked fine with Oneiric, so this a regression.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6
Uname: Linux 3.2.0-17-generic x86_64
ApportVersion: 1.93-0ubuntu2
Architecture: amd64
CasperVersion: 1.305
Date: Sun Mar 4 15:32:07 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
LiveMediaBuild: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
MachineType: Acer Aspire 1825PTZ
ProcEnviron:
TERM=linux
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash --
SourcePackage: xserver-xorg-input-evdev
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/01/2010
dmi.bios.vendor: INSYDE
dmi.bios.version: V1.3118
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JM12-MS-CAP
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvrV1.3118:bd03/01/2010:svnAcer:pnAspire1825PTZ:pvrV1.3118:rvnAcer:rnJM12-MS-CAP:rvrBaseBoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: Aspire 1825PTZ
dmi.product.version: V1.3118
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu5
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

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Revision history for this message

ove (ove) wrote on 2012-03-04:

BootDmesg.txt Edit (50.0 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (18.9 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (2.4 KiB, text/plain; charset="utf-8")
DpkgLog.txt Edit (1.4 MiB, text/plain; charset="utf-8")
Lspci.txt Edit (11.3 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (735 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.5 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (3.3 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (125.4 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (276.9 KiB, text/plain; charset="utf-8")

Revision history for this message

ove (ove) wrote on 2012-03-04:

Xorg.0.log Edit (34.2 KiB, text/plain)

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-03-10:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in xserver-xorg-input-evdev (Ubuntu):
status:	New → Confirmed

Revision history for this message

sven-ola (sven-ola) wrote on 2012-03-10:

Different touch screen controller, same bug. Touch worked for me on oneiric but stopped working for precise. I have an ExoPC (Atom Tablet, similar to WeTab). To add some more detail: if you only tap the screen everything works. If you try to drag something (e.g. move window) input freezes. The following forum post may shed some light on this (I'll try to investigate later): http://ubuntuforums.org/showpost.php?p=11633800&postcount=661

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sven-ola (sven-ola) wrote on 2012-03-10:

I'm not sure if this is helpful. Monitored xinput on device 9 (my touch screen controller, see list above) when triggering bug. Bit difficult to catch, because when input stops working, I needed to switch to console (with DISPLAY=:0 opened with "xhost +") and "xinput test 9" buffers output until "stop lightdm". Maybe the "a[2]=0" visible at end triggers the bug.

Bryce Harrington (bryce) on 2012-04-04

summary:

- "Cando" Touchscreen buggy since Precise
+ "Cando" Touchscreen buggy since Precise - After the first few successful
+ "clicks" on the touchscreen, new "clicks" are not registered anymore.

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pauls (paulatgm) wrote on 2012-05-21:

Same problem here on my lenovo s10-3t with it's cando touch screen.

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pauls (paulatgm) wrote on 2012-06-01:

btw the workaround mentioned above in post #4 does not work in ubuntu. It seems the reference hid-multitouch is somehow different in ubuntu, and not accessible to root. Is there some other workaround.

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pauls (paulatgm) wrote on 2012-06-03:

I have also tried the daily ubuntu kernel ppa and 3.5.0-999-generic #201206030419 does not fix this problem.

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black boot (blackboot123) wrote on 2012-06-05:

#10

I'll add in to confirm this bug is being experienced by another user
lenovo s10-3t - cando touch screen.

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pauls (paulatgm) wrote on 2012-06-06:

#11

I tried the daily quantal desktop iso from 5jun12 and it's still broken. In fact, it's worse because touching anywhere on the screen causes the cursor to jump to the top left edge.

Revision history for this message

pauls (paulatgm) wrote on 2012-06-09:

#12

I tried the quantal alpha 1 and it also has the same bug.

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pauls (paulatgm) wrote on 2012-06-29:

#13

I tried the quantal alpha 2 and it also has the same bug.

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pauls (paulatgm) wrote on 2012-09-07:

#14

I tried the quantal beta 1 and it also has this same bug.

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Quentin Quaadgras (quentin-d) wrote on 2012-09-14:

#15

I also have this bug on my gigabyte t1005 cando touchscreen. A workaround for me is replacing unity with avant-window-navigator.

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pauls (paulatgm) wrote on 2012-10-19:

#17

Quantal final still has this bug.

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Aptorian (christopher-kahn) wrote on 2012-11-30:

#18

This bug affects me too, with the "Atmel maXTouch Digitizer" touchscreen on the new Samsung XE700T1C (aka ATIV Smart PC Pro). After a while of touching the screen it gets locked and I'm no longer able to touch anything... the touch events appear to get accumulated and only released when another device clicks.

For example, if I'm using OnBoard (onscreen keyboard) to type into the Dash or a document, and I touch a bunch of keys nothing happens, but as soon as I click with my mouse or wacom pen, all the characters I had previously been touching are suddenly spat out into whatever text box I was in.

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pauls (paulatgm) wrote on 2013-02-06:

#19

So I wonder if this will ever be fixed , as it's been12 months already?

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Quentin Quaadgras (quentin-d) wrote on 2013-03-04:

#20

Maybe this is related to bug #1099289
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1099289

Revision history for this message

pauls (paulatgm) wrote on 2013-04-29:

#21

OK, so I've been able to install ubuntu 13.04, and this problem still exists.

Revision history for this message

penalvch (penalvch) wrote on 2014-01-09:

#22

ove, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p xserver-xorg-input-evdev REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

Changed in xserver-xorg-input-evdev (Ubuntu):
importance:	Undecided → Low
status:	Confirmed → Incomplete

Revision history for this message

loziniak (loziniak) wrote on 2014-01-21:

#23

I'm happy to say that this bug is fixed for me. I'm writing this from Ubuntu Trusty Alpha amd64 20140110 daily build, using keyboard only once - to run OnBoard. Multi(or rather double)touch is working also. Thanks whoever fixed this!

Revision history for this message

Launchpad Janitor (janitor) wrote on 2014-03-23:

#24

[Expired for xserver-xorg-input-evdev (Ubuntu) because there has been no activity for 60 days.]

Changed in xserver-xorg-input-evdev (Ubuntu):
status:	Incomplete → Expired

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Ubuntuxserver-xorg-input-evdev package

"Cando" Touchscreen buggy since Precise - After the first few successful "clicks" on the touchscreen, new "clicks" are not registered anymore.

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Ubuntu
xserver-xorg-input-evdev package