3m usb touchscreen on Debian etch

knobby67 · 06-05-2008, 08:32 AM

Hello all,
I'm trying to get a 3m/microtouch screen to work with Etch.
First problem to get the screen to be detected I have to unplug the USB lead and replug in. This gets the touch working, however the x axis is in reverse and calibration is a little off.
cat /proc/bus/input/devices

shows

I: Bus=0003 Vendor=0596 Product=0001 Version=0410
N: Name="3M 3M USB Touchscreen - EX II"
P: Phys=/input0
S: Sysfs=/class/input/input3
H: Handlers=mouse1 event3 ts1
B: EV=b
B: KEY=400 0 0 0 0 0 0 0 0 0 0
B: ABS=3

I've tried putting it into my Xorg.conf but this appears to have little effect.
I do the following
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
InputDevice "touchscreen0" #add this
EndSection

Section "InputDevice"
Identifier "touchscreen0"
Driver "microtouch" #tried mutouch no effect
Option "Device" "/dev/input/event3"
Option "DeviceName" "touchscreen"
Option "MinX" "2300"
Option "MinY" "2300"
Option "MaxX" "14000"
Option "MaxY" "14000"
Option "DragTimer" "200"
Option "MoveLimit" "600"
Option "ReportingMode" "Raw"
EndSection

So the first question is can anyone tell me what to do to get the screentouch to auto detect from boot?
The second is can anyone tell me how to get the xorg setups to be recognized?
Third how to get the x axis correct, presumable if xorg loads the set up in I can just use the the swap command? so this may no be needed.

I've spent two days on this trying everything from google, but with no luck so would love some advise. Thanks!

I should add that i apt'ed the xserver micro touch drivers, when I use these they turn the gnome black, that it appears to boot but the screen just flickers then goes black.

farslayer · 06-05-2008, 03:24 PM

This link seems to indicate theres a kernel module needed as well as the X drivers.. http://www.groomlakelabs.com/?q=linu...chscreen_howto

Code:

it-etch:~# modinfo usbtouchscreen
filename:       /lib/modules/2.6.18-6-686/kernel/drivers/usb/input/usbtouchscreen.ko
author:         Daniel Ritz <daniel.ritz@gmx.ch>
description:    USB Touchscreen Driver
license:        GPL
alias:          touchkitusb
alias:          itmtouch
alias:          mtouchusb
vermagic:       2.6.18-6-686 SMP mod_unload 686 REGPARM gcc-4.1
depends:        usbcore
alias:          usb:v3823p0001d*dc*dsc*dp*ic*isc*ip*
parm:           swap_xy:If set X and Y axes are swapped. (bool)

Not sure what you have tried already..

you could look to see what module is loaded when you plug-in the touchscreen and add it to /etc/modules

Unplug the touch screen usb cable
Open a shell and type
tail -f /var/log/messages
Plug in the touch screen and watch what module is automatically loaded.. that would be the module you would want to load automatically at boot time.

knobby67 · 06-06-2008, 02:17 AM

Thanks but unfortunately that says the module is loaded

Jun 6 08:19:33 Axis kernel: input: 3M 3M USB Touchscreen - EX II as /class/input/input3

Anyone any ideas?

Infact when I lsmod it says it's loaded a module called
usbtouchscreen ?

farslayer · 06-06-2008, 11:04 PM

so if the module the touch screen is using is usbtouchscreen then you would add that to the /etc/modules file..

echo usbtouchscreen >> /etc/modules

this is from the old touchscreen driver how-to.. so reversing one of the axis probably works in a similar fashion
http://linux.chapter7.ch/touchkit/mini-howto.txt

Quote:

X/Y Swapped
~~~~~~~~~~~

in /etc/modprobe.conf add the line:
options touchkitusb swap_xy=1

alternatively you can do it after the module was loaded by doing (as root):
echo Y > /sys/modules/touchkitusb/parameters/swap_xy

apparently the touchkit module was replaced by the usbtouchscreen module

This guy looks like he got it working successfully including swapping the Y axis..
http://www.groupsrv.com/linux/post-867915.html

d2army · 09-11-2008, 06:26 PM

Hi everyone,

it looks like I am doing something similar to what you guys are doing too.

I am trying to get my 3M CT150 touch screen to work on my Ubuntu 8.04. I have gotten to the point where the microtouch driver loading with X Windows.

I noticed something amiss in the X11 logs (/var/log/Xorg.0.log ) :

(**) Option "Device" "/dev/input/event4"
(**) Option "MinX" "-7185"
(**) Option "MaxX" "-7185"
(**) Option "MinY" "7013"
(**) Option "MaxY" "2474"
Unable to query/initialize MicroTouch hardware.
(EE) PreInit failed for input device "3MTouchScreen"
(II) UnloadModule: "microtouch"

The MinX to MaxY values are calculated using the TouchCal calibration program from SourceForge.

I just don't know why the micro-touch driver will fail and unload.

Even though it looks like microtouch failed, I can still use the touch screen because the system module usbtouchscreen is still loaded. Except that the X-axis is flipped and the pointer is extremely jittery ( Y axis is fine )

I was wondering if any of you have encountered this issues before

Thanks
IS

knobby67 · 09-12-2008, 08:27 AM

The 3m won't work correctly with Debian/Unbutu. I've spoken to their engineers who said drivers should be avalible by the end of August. No sign as yet.
I switch to ELO easy to install, better touch and doesn't "tint" the monitor as it uses a different technology.

You can sort of get it working like a mouse but to be honest it's a waste of time. Drivers are availble for Suse and RedHat if you want to change.

d2army · 09-12-2008, 08:01 PM

Quote:

Originally Posted by knobby67

The 3m won't work correctly with Debian/Unbutu. I've spoken to their engineers who said drivers should be avalible by the end of August. No sign as yet.
I switch to ELO easy to install, better touch and doesn't "tint" the monitor as it uses a different technology.

You can sort of get it working like a mouse but to be honest it's a waste of time. Drivers are availble for Suse and RedHat if you want to change.

Hi there, thanks for replying, I actually was able to get the source of the evtouch driver mentioned in the doc: http://www.nextabyte.com/support/tou...reen_HowTo.pdf

Once the evtouch driver is compiled, I was able to use the calibrator as well and now it is working