Touchsupport

Henne · March 24, 2018 at 3:17 PM

and systemctl status service.touchscreen.service

Code

● service.touchscreen.service - Touchscreen support daemon
   Loaded: loaded (/storage/.kodi/addons/service.touchscreen/system.d/service.touchscreen.service; e
nabled; vendor preset: disabled)
   Active: active (exited) since Thu 2018-03-08 08:31:10 WET; 2 weeks 2 days ago
  Process: 663 ExecStart=/bin/sh -c exec /bin/sh /storage/.kodi/addons/service.touchscreen/bin/ts_ui
nput_touch.sh service (code=exited, status=0/SUCCESS)
  Process: 611 ExecStartPre=/bin/sh -c exec /bin/sh /storage/.kodi/addons/service.touchscreen/bin/ts
_calibrate.sh service (code=exited, status=0/SUCCESS)
 Main PID: 663 (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/service.touchscreen.service
           └─694 ts_uinput_touch -x 800 -y 480 -d

Mar 08 08:31:10 LibreELEC sh[663]:       TSLIB_CALIBFILE: '/storage/.kodi/userdata/addon_data/servic
e.touchscreen/pointercal'
Mar 08 08:31:10 LibreELEC sh[663]:        TSLIB_CONFFILE: '/storage/.kodi/userdata/addon_data/servic
e.touchscreen/ts.conf'
Mar 08 08:31:10 LibreELEC sh[663]:           TSLIB_RES_X: '800'
Mar 08 08:31:10 LibreELEC sh[663]:           TSLIB_RES_Y: '480'
Mar 08 08:31:10 LibreELEC sh[663]: TSLIB_TOUCH_HOME_TIME: '200'
Mar 08 08:31:10 LibreELEC sh[663]: using fb device: /dev/fb0
Mar 08 08:31:10 LibreELEC sh[663]: resolution: 800x480
Mar 08 08:31:10 LibreELEC sh[663]: using touch device: /dev/input/event3
Mar 08 08:31:10 LibreELEC sh[663]: daemonizing...
Mar 08 08:31:10 LibreELEC systemd[1]: Started Touchscreen support daemon.

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while evtest whith shutting down KODI will provide touchdata like this:

Code

Event: time 1521898950.552704, -------------- SYN_REPORT ------------
Event: time 1521898950.562717, type 3 (EV_ABS), code 0 (ABS_X), value 987
Event: time 1521898950.562717, type 3 (EV_ABS), code 1 (ABS_Y), value 2411
Event: time 1521898950.562717, type 3 (EV_ABS), code 24 (ABS_PRESSURE), value 64902

I now have some data of the touch:

Code

110, 3960 (x) 300, 3800 (y)

and i've tried the advancedsettings.xml advancedsettings.xml - Official Kodi Wiki, but stretch_factor don't work. Even tested

Code

<window>
    <width>800</width>
    <height>460</height>
</window>

don't do anything. I am unsure if the advancedsettings.xml is working, path /storage/.kodi/userdata/ and XML with NotePad++

(i.e. splash false does not work)

**vpeter** · March 24, 2018 at 5:37 PM

You don't need to modify advancedsettings.xml. OR just use that and not this addon.

Stop kodi and start evtest. Make short presses on top/left, top/right, bottom/right, bottom/left and put result on pastebin page.

Henne · March 24, 2018 at 11:31 PM

Here are the data from evtest: pastebin

THX

**vpeter** · March 25, 2018 at 8:08 AM

Data seems fine to me. At least all the four values.

But orientation is off or maybe you just didn't follow order correctly.

Anyway, from what I see it should work. I mean moving mouse cursor all over the screen.

Henne · March 26, 2018 at 3:13 PM

Thank you again for your support!

with "orientation is off" I do not quite understand how I can change that. You do not mean xyswap?

I have made a video, so you can see how shifted is the touch sensitivity to the display

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**vpeter** · March 26, 2018 at 3:37 PM

Ok, picture is better but video is even more

I do not understand your problem actually. Run calibration and tap on those points. After that screen will be calibrated. Ignore mouse cursor at this point.

Henne · March 26, 2018 at 6:54 PM

Quote from vpeter

Run calibration and tap on those points.

but I ca'nt do that, because the touch does not react to the first point. Neither in Kodi, nor with selected calibration before the start of Kodi

I make another very fresh installation and try again.

**vpeter** · March 26, 2018 at 7:23 PM

And if you tap somewhere else on the screen then it moves to next point?

Or it stays on first point indefinitely?

Henne · March 26, 2018 at 7:54 PM

OK, with the fresh installation only with waveshare and touchservice i get with evtest this:

Code

LibreELEC:~ # evtest
No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0:      Chicony USB Keyboard
/dev/input/event1:      Chicony USB Keyboard
/dev/input/event2:      ADS7846 Touchscreen
/dev/input/event3:      tslib to uinput daemon
Select the device event number [0-3]: 3
Input driver version is 1.0.1
Input device ID: bus 0x3 vendor 0x34a5 product 0x67b8 version 0x1
Input device name: "tslib to uinput daemon"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 330 (BTN_TOUCH)
  Event type 3 (EV_ABS)
    Event code 0 (ABS_X)
      Value    -50
      Min        0
      Max      800
    Event code 1 (ABS_Y)
      Value    -50
      Min        0
      Max      480
    Event code 24 (ABS_PRESSURE)
      Value      0
      Min        0
      Max      255
Properties:
Testing ... (interrupt to exit)

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/event2 the Waveshare but also event3 ? I'm confused!

This is the config.txt

Code

################################################################################
# Memory (System/GPU configuration )
################################################################################

# Default GPU memory split (do not change if you do not know what you are doing)
  gpu_mem=128

# Configure GPU memory based on SDRAM size - overrides above setting
  gpu_mem_256=112
  gpu_mem_512=160
  gpu_mem_1024=256

# Make display smaller to stop text spilling off the screen
#
# Note that the overscan settings only affect the splash screen and not Kodi.
#
# If you experience overscan/underscan issues the best solution is to adjust
# your TV settings ("full pixel", "1-1 pixel" etc.). Alternatively, there is a
# calibration menu in the Kodi GUI.
# disable_overscan=1

# Force HDMI even if unplugged or powered off
hdmi_force_hotplug=1

# Doesn't sent initial active source message.
# Avoids bringing CEC (enabled TV) out of standby and channel switch when
# rebooting.
hdmi_ignore_cec_init=1

################################################################################
# Include distribution specific config file if it exists.
################################################################################
[all]
include distroconfig.txt

max_usb_current=1
hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_cvt=800 480 60 6 0 0 0

dtparam=spi=on
# dtparam=i2c_arm=on
dtoverlay=ads7846,penirq=25,speed=10000,penirq_pull=2,xohms=150

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Everything is the same as before. Don't be able to calibrate.

Henne · March 26, 2018 at 7:56 PM

Quote from vpeter

And if you tap somewhere else on the screen then it moves to next point?

Or it stays on first point indefinitely?

Don't do anything. Just get the first point and nothing else.

Just while the screensaver in Kodi is working, any touch at the display brings Kodi on.

This says to me: Touch sends data

**vpeter** · March 27, 2018 at 7:26 AM

Your touchscreen: /dev/input/event2: ADS7846 Touchscreen

New input device created by addon /dev/input/event3: tslib to uinput daemon and used by kodi

Frankly I don't know what is wrong. Your touchscreen works fine according to evtest. Maybe there is something wrong with addon itself. I don't have any such touchscreen to actually test it.

You can try to stop kodi (systemctl stop kodi) and select /dev/input/event3: tslib to uinput daemon with evtest. And again tap top/left, top/right, bottom/right, bottom/left and put result on pastebin page to see if daemon works correctly. I assume no.

Henne · March 28, 2018 at 5:31 PM

Finaly... I've got a solution. see below. I'll explain what I've tried before.

Because the touch works, but the data was wrong, I took the image of Waveshare here: Waveshare 5inch HDMI LCD

then configured everything under X11 and got an interesting result 99-calibration.conf after install:

Code

Section "InputClass"
        Identifier      "calibration"
        MatchProduct    "ADS7846 Touchscreen"
        Option  "Calibration"   "208 3905 288 3910"
        Option  "SwapAxes"      "0"
EndSection

The basic setup was quite good with these parameters in the config.txt at the image from waveshare,

Code

dtparam=i2c_arm=on
dtparam=spi=on
enable_uart=1

hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0
dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900

but I had to calibrate so that I could use the touch exactly.

The values of the calibration may be informative. This is 99-calibration.conf after first calibration:

Code

Section "InputClass"
    Identifier    "calibration"
    MatchProduct    "ADS7846 Touchscreen"
        Option  "MinX"  "2048"
        Option  "MaxX"  "63651"
        Option  "MinY"  "2617"
        Option  "MaxY"  "64147"
    Option    "SwapXY"    "0" # unless it was already set to 1
    Option    "InvertX"    "0"  # unless it was already set
    Option    "InvertY"    "0"  # unless it was already set
EndSection

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Funny thing is that with each calibration different values have come and I could bring it at least with four attempts to no exact functioning touch. Other results of calibration:

Code

Section "InputClass"
    Identifier    "calibration"
    MatchProduct    "ADS7846 Touchscreen"
    Option    "MinX"    "1768"
    Option    "MaxX"    "63644"
    Option    "MinY"    "3186"
    Option    "MaxY"    "63442"
    Option    "SwapXY"    "0" # unless it was already set to 1
    Option    "InvertX"    "0"  # unless it was already set
    Option    "InvertY"    "0"  # unless it was already set
EndSection

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I thought to use these values above in a config file for service.touchscreen/pointercal, but since I have none and their structure does not know, I have rejected that.

Back to the Libreelec I took the config.txt settings from the image of Waveshare and then tried again with the advancedsettings.xml.

Now it has worked so far successful that I have a perfectly calibrated touch under Kodi. The calibration from the addon still does not work because of the offset.

This is the config.txt:

Code

################################################################################
# Bootloader configuration - config.txt
################################################################################

################################################################################
# Memory (System/GPU configuration )
################################################################################

# Default GPU memory split (do not change if you do not know what you are doing)
  gpu_mem=128

# Configure GPU memory based on SDRAM size - overrides above setting
  gpu_mem_256=112
  gpu_mem_512=160
  gpu_mem_1024=256

################################################################################
# For overclocking and various other settings, see:
# https://www.raspberrypi.org/documentation/configuration/config-txt.md
################################################################################
# Set 'force_turbo=1' to disable dynamic overclocking and enable overclocking always.
force_turbo=0

# Make display smaller to stop text spilling off the screen
#
# Note that the overscan settings only affect the splash screen and not Kodi.
#
# If you experience overscan/underscan issues the best solution is to adjust
# your TV settings ("full pixel", "1-1 pixel" etc.). Alternatively, there is a
# calibration menu in the Kodi GUI.
# disable_overscan=1

# Force HDMI even if unplugged or powered off
hdmi_force_hotplug=1

# Doesn't sent initial active source message.
# Avoids bringing CEC (enabled TV) out of standby and channel switch when
# rebooting.
hdmi_ignore_cec_init=1

################################################################################
# License keys to enable GPU hardware decoding for various codecs
# to obtain keys visit the shop at http://www.raspberrypi.com
################################################################################

# decode_MPG2=0x00000000
# decode_WVC1=0x00000000

################################################################################
# End of default configuration
################################################################################

################################################################################
# Include distribution specific config file if it exists.
################################################################################
[all]
include distroconfig.txt

max_usb_current=1

###############################################################################
## LIRC
###############################################################################
dtoverlay=lirc-rpi,gpio_in_pin=26

###############################################################################
# Uncomment some or all of these to enable the optional hardware interfaces
##############################################################################
dtparam=i2c_arm=on
# dtparam=i2s=on
dtparam=spi=on
# enable_uart=1
# enable_camera=1

# Additional overlays and parameters are documented /boot/overlays/README

# Enable audio (loads snd_bcm2835)
# dtparam=audio=on
hdmi_group=2
hdmi_mode=1
hdmi_mode=87
hdmi_cvt 800 480 60 6 0 0 0
# dtoverlay=ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref_on=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900

hdmi_blanking=1

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and this the advancedsettings.xml I found these parameters here: Waveshare 5 Inch Touchscreen funktioniert unter Kodi nicht richtig

Code

<advancedsettings>
  <touchscreen>
    <x_offset>-32</x_offset>
    <y_offset>-35</y_offset>
    <x_stretch_factor>0.209</x_stretch_factor>
    <y_stretch_factor>0.131</y_stretch_factor>
  </touchscreen>
</advancedsettings>

If you get me the structure of the pointercal of you, I can test it, whether it works without advancedsettings.xml.

Thanks again for your support vpeter!

**vpeter** · March 28, 2018 at 5:50 PM

You can follow code here tslib/ts_calibrate.c at master · kergoth/tslib · GitHub

But if you are using data in advancedsettings.xml then you don't need this addon.

**vpeter** · March 30, 2018 at 6:45 AM

Henne: I think I know what is your problem.
Waveshare files are used only when hidraw device is used for such displays. But your is not like that.

That's why you need to copy ts_env.sh-sample to ts_env.sh (and change TOUCHSCREEN_NAME) and copy ts.conf-generic to ts.conf. I think then you could calibrate and everything will be fine.

Let me know the result.

lcgh · April 24, 2018 at 1:29 PM

Dear all,

I use an old egalax touchscreen (resistive, via HDMI->VGA, 1024x768) and install + calibration worked rather well. Now I have a problem with all skins on LE Krypton:

If a menu has more entries (e.g. main menu) vertically, I can manage to scroll down to see what is at the bottom, but it is impossible to scroll up again. There is no place where touching results in upwards scrolling. Instead, the touch results in some selection of a menu that is just there where the touch is placed. For downwards scrolling it is sufficient to go to the bottom. Is there any possibility to fix that? If e.g. a file is selected for playing (which can be a long list, at least longer than the vertical resolution of the screen), this is no problem, because there are small vertical bars at the side to scroll down and up. But for the main menu(s), there is no such scroll bar.

Can such bars be added (at least on demand) or is there another possibility?

Thanks for any hints.

best,

lcg

**vpeter** · April 24, 2018 at 1:34 PM

lcgh: addon emulates mouse which means it should work the same. If you can scroll down also scroll up should work.

I don't have any system currently to check this. But last time it was working as expected.

lcgh · April 24, 2018 at 2:21 PM

Thanks vpeter,

any additional info "how" to try this out? Yes, touch itself works, selection works, too, but moving the finger or the pen (which came with the resistive touchscreen) does not result in real scrolling. In case of bars it works. Using keyboard arrows the navigation is without any problems. It seems to me that this is a problem of the skin(s) per se.

Example: just tried under PC/Windows with mouse (Leia Alpha build, but I expect this to be the same as I use Krypton with the RPi) as you pointed out that the addon emulates mouse:

scrolling is only possible downwards in main menu (estuary) while just moving the mouse and doing nothing else
scrolling is not possible with mouse upwards if not the mouse wheel is used
mouse wheel works as expected (scrolling up and down)

So if it works not for the mouse, it won't work for the touch unless the touch emulates also the mouse wheel. Is it that way?

thanks and best.

lcg

**vpeter** · April 24, 2018 at 2:28 PM

This has nothing to do with mouse wheel.

And I think I'm starting to understand the problem. Maybe only scroll bars works.

That's why there is Estouchy skin which is more useful with touchscreen.

It was some time when I checked addon last time. Maybe something become broken (and as I wrote I don't have any hw anymore to check).