ntrig touchscreen no longer works

[Pete Goodall]

I installed Ubuntu 10.10 beta and the touchscreen works just fine with the 2.6.35-19 kernel. I updated the kernel (only) to 2.6.35-22 and the touchscreen stopped working. I can see by cat'ing the correct input (i.e. /dev/input/event8) that the events are recognised, but the cursor is not moving. From the X.org log file it seems X is recognising the input.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-22-generic 2.6.35-22.32
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-22.32-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
NonfreeKernelModules: wl
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: leo 1439 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf6adc000 irq 46'
   Mixer name : 'IDT 92HD71B7X'
   Components : 'HDA:111d76b2,10280252,00100302'
   Controls : 20
   Simple ctrls : 12
Date: Mon Sep 20 11:31:02 2010
HibernationDevice: RESUME=UUID=ef98f93b-1c0e-4792-a0ca-b4e28cdfb68f
InstallationMedia: Ubuntu-Netbook 10.10 "Maverick Meerkat" - Beta i386 (20100902.1)
MachineType: Dell Inc. Latitude XT2
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-22-generic root=UUID=23bfbf06-2cda-40ed-b9d2-c2b0f453aa02 ro quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
SourcePackage: linux
dmi.bios.date: 05/07/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A01
dmi.board.name: 0M373P
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA01:bd05/07/2009:svnDellInc.:pnLatitudeXT2:pvr:rvnDellInc.:rn0M373P:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: Latitude XT2
dmi.sys.vendor: Dell Inc.

[Pete Goodall (pgoodall)]

Just updated the ntrig firmware from 119 to 206 from Windows and that doesn't seem to have fixed it. I also updated the BIOS (if that even affects this) from A01 to A10.

[Mohamed IKBEL Boulabiar (boulabiar)]

What these number represent ? (119 to 206)
The Firmware version is something like this : 4.5.2.13.5

[Henrik Rydberg (rydberg)]

The dmesg output does not show the firmware version, which the latest kernel does. Confusing. Are you running any dkms packages? For a reality check, I have also attached a reverted driver for testing.

[Henrik Rydberg (rydberg)]

For win7 users, a firmware know to work well is 4.6.17.13.5, available here:

http://support.dell.com/support/downloads/driverslist.aspx?os=W764&catid=-1&dateid=-1&impid=-1&osl=EN&typeid=-1&formatid=-1&servicetag=&SystemID=LAT_XT2&hidos=RHEL5&hidlang=en&TabIndex=&scanSupported=False&scanConsent=False

[Rafael Henzler (rafael-henzler)]

The Problem looks similar to mine:

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/656340

Here is only Vista available. so I can not test the Windows 7 firmware.

[Jayhawk (the-ayuthias)]

I have found that the single-touch version (if the firmware is removed--it also does not provide a firmware version) is no longer reporting correctly. I am pretty sure that the Vista firmware will report the same issues. The hid-ntrig.c source is only calling report_frame when HID_DG_CONTACTCOUNT is received. However, in the Vista firmware and single-touch, it does not send that event. It ends when HID_DG_HEIGHT is sent. Therefore the N-Trig Touchscreen (single-touch/Vista) version will never report anything. I have also found that the system will crash occasionally when you touch the screen.

Attached is a patch that is currently working for me in single touch and multitouch. I hope this helps.

[Henrik Rydberg (rydberg)]

Jayhawk, thank you very much for the patch.

Does this package work for you? If not, please provide the output of "dmesg | grep ntrig". Thanks!

[Jayhawk (the-ayuthias)]

Henrik, this version worked fine for me using the single finger (by removing the firmware) and with the multi finger firmware. Thank you!

[Henrik Rydberg (rydberg)]

Great - I have pushed the package to ppa:utouch-team/utouch. Thanks!