No touchscreen pressure reported on Asus EeePC T101MT

[Stefan Löffler]

From `lsusb`: Bus 003 Device 002: ID 0486:0186 ASUS Computers, Inc.

Pressure-sensitive drawing works on Windows 7.

Attached is the output of `sudo evtest /dev/input/event6`, showing that there is an event (type 3, code 40) that has the range (0-255) commonly reported for the pressure sensitivity of the device. When using it, all the other event codes show up, but not code 40.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-8-generic 2.6.38-8.42
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: stefan 1389 F.... pulseaudio
CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf7cf8000 irq 46'
   Mixer name : 'Realtek ALC269'
   Components : 'HDA:10ec0269,104383ce,00100004'
   Controls : 12
   Simple ctrls : 7
Date: Sun May 1 15:42:24 2011
HibernationDevice: RESUME=UUID=4ad7e2f6-dbe9-4e4e-ae44-a96684630a07
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: ASUSTeK Computer INC. T101MT
ProcEnviron:
 LANGUAGE=de_AT:en
 LANG=de_AT.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-2.6.38-8-generic root=UUID=39ada697-0dd4-43f4-9e35-e98435f91bc4 ro quiet splash acpi_osi=Linux acpi_backlight=vendor vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-8-generic N/A
 linux-backports-modules-2.6.38-8-generic N/A
 linux-firmware 1.52
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/07/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0802
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: T101MT
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer INC.
dmi.chassis.version: x.x
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0802:bd01/07/2011:svnASUSTeKComputerINC.:pnT101MT:pvrx.x:rvnASUSTeKComputerINC.:rnT101MT:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x:
dmi.product.name: T101MT
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.

[Norbert (nrbrtx)]

I confirm this.

[elgi (elgi)]

 Found the same behaviour. Pressure sensitivity is reported as 0 or 1.

[Norbert (nrbrtx)]

Same here. T101MT G2, ubuntu 12.04 amd64.

[penalvch (penalvch)]

Stefan Löffler, 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 CD images are available from http://cdimage.ubuntu.com/releases/ .

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 linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available? It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please do not test the kernel in the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. As well, please comment on which kernel version specifically you tested.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream', and comment as to why specifically you were unable to test it.

Please let us know your results. Thanks in advance.

Helpful Bug Reporting Links:
https://help.ubuntu.com/community/ReportingBugs#Bug_Reporting_Etiquette
https://help.ubuntu.com/community/ReportingBugs#A3._Make_sure_the_bug_hasn.27t_already_been_reported
https://help.ubuntu.com/community/ReportingBugs#Adding_Apport_Debug_Information_to_an_Existing_Launchpad_Bug
https://help.ubuntu.com/community/ReportingBugs#Adding_Additional_Attachments_to_an_Existing_Launchpad_Bug

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]