How to make Elo touchscreen working for Linux?

Question

Elo touchscreen model:

• Elo TouchSystems, Inc. Elo TouchSystems 2700 IntelliTouch(r)

Problem description:

• My problem + others problem with this is that, when i touch-over (mouse-over) the touchscreen, the mouse cursor do not follow my (finger/touch) movement. On press the cursor press (click) in the wrong location.

My goal is to fix it, so that the press location is exact.

Tried

Following attempts i have done but no luck.

1) Query/Device status

--

udi = '/org/freedesktop/Hal/devices/usb_device_4e7_20_20B23159_if0_logicaldev_input'
  button.has_state = false  (bool)
  info.addons.singleton = {'hald-addon-input'} (string list)
  info.capabilities = {'input', 'button', 'input.mouse'} (string list)
  info.category = 'input'  (string)
  info.parent = '/org/freedesktop/Hal/devices/usb_device_4e7_20_20B23159_if0'  (string)
  info.product = 'Elo TouchSystems, Inc. Elo TouchSystems 2700 IntelliTouch(r) USB Touchmonitor Interface'  (string)
  info.subsystem = 'input'  (string)
  info.udi = '/org/freedesktop/Hal/devices/usb_device_4e7_20_20B23159_if0_logicaldev_input'  (string)
  input.device = '/dev/input/event11'  (string)
  input.originating_device = '/org/freedesktop/Hal/devices/usb_device_4e7_20_20B23159_if0'  (string)
  input.product = 'Elo TouchSystems, Inc. Elo TouchSystems 2700 IntelliTouch(r) USB Touchmonitor Interface'  (string)
  input.x11_driver = 'evdev'  (string)
  linux.device_file = '/dev/input/event11'  (string)
  linux.hotplug_type = 2  (0x2)  (int)
  linux.subsystem = 'input'  (string)
  linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1:1.0/input/input11/event11'  (string)

2) Add a new file

$ vim /etc/X11/xorg.conf.d/elo.conf
Section "InputDevice"
    Identifier "touchscreen1"
    Driver "elographics"
    Option "Device" "/dev/ttyS0"
    Option "MinX" "470"
    Option "MaxX" "3670"
    Option "MinY" "600"
    Option "MaxY" "3550"
    Option "ScreenNumber" "0"
    Option "ReportingMode" "Scaled"
    Option "ButtonThreshold" "17"
    Option "ButtonNumber" "1"
    Option "SendCoreEvents"
EndSection

3) Logout to restart the X

4) Result is still same nothing was improved.

I appreciate your advise, on this.

Follow up:

$ cat /proc/bus/input/devices
I: Bus=0003 Vendor=04e7 Product=0020 Version=0100
N: Name="Elo TouchSystems, Inc. Elo TouchSystems 2700 IntelliTouch(r) USB Touchmonitor Interface"
P: Phys=usb-0000:00:1d.1-1/input0
S: Sysfs=/devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/input/input6
U: Uniq=20B23159
H: Handlers=mouse1 event6 js0 
B: PROP=0
B: EV=1b
B: KEY=10000 0 0 0 0 0 0 0 0
B: ABS=100 3
B: MSC=10   
$ cat /dev/input/event6
$ xinput_calibrator -v --device 14 --precalib 0 1024 0 768 --output-type xinput
DEBUG: XInputExtension version is 2.0
DEBUG: Skipping virtual master devices and devices without axis valuators.
DEBUG: Selected device: Elo TouchSystems, Inc. Elo TouchSystems 2700 IntelliTouch(r) USB Touchmonitor Interface
DEBUG: Setting precalibration: 0, 1024, 0, 768
DEBUG: Not usbtouchscreen calibrator: Not a usbtouchscreen device
DEBUG: Read axes swap value of 0.
Calibrating EVDEV driver for "Elo TouchSystems, Inc. Elo TouchSystems 2700 IntelliTouch(r) USB Touchmonitor Interface" id=14
    current calibration values (from XInput): min_x=0, max_x=4095 and min_y=0, max_y=4095
DEBUG: Adding click 0 (X=1908, Y=731)

; ; Solved! section ;

$ yum search xinput; install xinput
$ xinput --help
usage :
    xinput get-feedbacks <device name>
    xinput set-ptr-feedback <device name> <threshold> <num> <denom>
    xinput set-integer-feedback <device name> <feedback id> <value>
    xinput get-button-map <device name>
    xinput set-button-map <device name> <map button 1> [<map button 2> [...]]
    xinput set-pointer <device name> [<x index> <y index>]
    xinput set-mode <device name> ABSOLUTE|RELATIVE
    xinput list [--short || --long] [<device name>...]
    xinput query-state <device name>
    xinput test [-proximity] <device name>
    xinput create-master <id> [<sendCore (dflt:1)>] [<enable (dflt:1)>]
    xinput remove-master <id> [Floating|AttachToMaster (dflt:Floating)] [<returnPointer>] [<returnKeyboard>]
    xinput reattach <id> <master>
    xinput float <id>
    xinput set-cp <window> <device>
    xinput test-xi2 <device>
    xinput list-props <device> [<device> ...]
    xinput set-int-prop <device> <property> <format (8, 16, 32)> <val> [<val> ...]
    xinput set-float-prop <device> <property> <val> [<val> ...]
    xinput set-atom-prop <device> <property> <val> [<val> ...]
    xinput watch-props <device>
    xinput delete-prop <device> <property>
    xinput set-prop <device> [--type=atom|float|int] [--format=8|16|32] <property> <val> [<val> ...]

; Hey how do i use xinput for query my stuffs?

$ xinput list
         ^
         |_______________ Show me what i got! for <input source> to my local

⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ Broadcom Corp                             id=10   [slave  pointer  (2)]
⎜   ↳ SynPS/2 Synaptics TouchPad                id=12   [slave  pointer  (2)]
⎣ Virtual core keyboard                     id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ Video Bus                                 id=6    [slave  keyboard (3)]
    ↳ Power Button                              id=7    [slave  keyboard (3)]
    ↳ Sleep Button                              id=8    [slave  keyboard (3)]
    ↳ Broadcom Corp                             id=9    [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=11   [slave  keyboard (3)]
    ↳ Dell WMI hotkeys                          id=13   [slave  keyboard (3)]
⎡ main pointer                              id=15   [master pointer  (16)]
⎜   ↳ Elo TouchSystems, Inc. Elo TouchSystems 2700 IntelliTouch(r) USB Touchmonitor Interface   id=14   [slave  pointer  (15)]
⎜   ↳ main XTEST pointer                        id=17   [slave  pointer  (15)]
⎣ main keyboard                             id=16   [master keyboard (15)]
    ↳ main XTEST keyboard                       id=18   [slave  keyboard (16)]


$ xinput get-feedbacks 14
1 feedback class
PtrFeedbackClass id=0
    accelNum is 2
    accelDenom is 1
    threshold is 4

$ xinput watch-props 14
Device 'Elo TouchSystems, Inc. Elo TouchSystems 2700 IntelliTouch(r) USB Touchmonitor Interface':
    Device Enabled (150):   1
    Coordinate Transformation Matrix (152): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
    Device Accel Profile (272): 0
    Device Accel Constant Deceleration (273):   1.000000
    Device Accel Adaptive Deceleration (274):   1.000000
    Device Accel Velocity Scaling (275):    10.000000
    Device Product ID (269):    1255, 32
    Device Node (270):  "/dev/input/event11"
    Evdev Axis Inversion (276): 0, 0
    Evdev Axis Calibration (277):   -4000, 4093, -100, 4089
    Evdev Axes Swap (278):  0
    Axis Labels (279):  "Abs X" (369), "Abs Y" (370), "Abs Misc" (580)
    Button Labels (280):    "Button Left" (153), "Button Unknown" (271), "Button Unknown" (271), "Button Wheel Up" (156), "Button Wheel Down" (157)
    Evdev Middle Button Emulation (281):    0
    Evdev Middle Button Timeout (282):  50
    Evdev Wheel Emulation (283):    0
    Evdev Wheel Emulation Axes (284):   0, 0, 4, 5
    Evdev Wheel Emulation Inertia (285):    10
    Evdev Wheel Emulation Timeout (286):    200
    Evdev Wheel Emulation Button (287): 4
    Evdev Drag Lock Buttons (288):  0

$ xinput query-state 14
2 classes :
ButtonClass
    button[1]=up
    button[2]=up
    button[3]=up
    button[4]=up
    button[5]=up
ValuatorClass Mode=Absolute Proximity=In
    valuator[0]=3018
    valuator[1]=3226
    valuator[2]=0

$ xinput test 14
motion a[0]=2940 a[1]=1717 a[2]=158 
motion a[0]=2940 a[1]=1717 a[2]=201 
button release 1 a[0]=2938 a[1]=1719 a[2]=0 
^C

; Hey, how do i apply now settings to my local using xinput??

$ xinput set-pointer <device name> [<x index> <y index>]
         ^
         |___this does not work anymore in latest kernels 
             report a bug it wasted my time

$ xinput set-int-prop "Elo TouchSystems, Inc. Elo TouchSystems 2700 IntelliTouch(r) USB Touchmonitor Interface" "Evdev Axis Calibration" 32 -4000 4093 -100 4089

Now, my right screen is having 1024x768 resolution and left laptop screen also, using the above statement, the mouse cursor is fitting well. If i have different resolutions, i need to finetune it ofcourse.

Answer 1

On press the cursor press (click) in the wrong location.

My goal is to fix it, so that the press location is exact.

It sounds like you need to calibrate your touchscreen. For that I recommend xinput_calibrator.

On Ubuntu, it's available as a package.

Answer 2

I have some pcs with fedora 25 and a Elo monitor working on all of them I just run the Elo touch calibration tool to calibrate the accuracy and thats all