[Resolved]PiScreen RaspberriPi2 Touchscreen Calibration

Forums Technical Support for PiScreen [Resolved]PiScreen RaspberriPi2 Touchscreen Calibration

Viewing 8 posts - 1 through 8 (of 8 total)
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  • #3934
    jawood
    Participant

    Hi I have downloaded and installed the pi screen image http://ozzmaker.com/piscreen/PiScreenImage-SDCard-1.8.zip and after doing the apt-get update and apt-get upgrade the calibration of the touchscreen is out. I have tried deleting calibration data and re-calibrating but get same result touching the top left of screen I see cursor, touching anywhere else I don't see the cursor.
    I tried doing the sudo TSLIB_FBDEVICE=/dev/fb1 TSLIB_TSDEVICE=/dev/input/event3 ts_calibrate but still same result. Tried adding rotate=90 in boot/config.txt and re-calibrating still same result.
    Any ideas would be appreciated.

    #3935
    jawood
    Participant

    So I did a fresh install of above image
    Did raspi-config and expanded file system, changed time timezone keyboard layout, reboot.
    raspi-config and changed host name, update raspi-config, reboot.
    rpi-update after reboot touchscreen is not calibrated correctly only a little out of alignment.
    Run touch screen calibration from preferences menu.
    now touch screen is way out will only see cursor if touch far left side of screen.

    #3936
    jawood
    Participant

    after above I did apt-get update, apt-get upgrade reboot
    After reboot touch screen is out of calibration still but only a little bit as before.
    Ran sudo rm /etc/pointercal.xinput reboot
    calibration wizard runs on boot when tapping screen on last tap get miss tap detected restarting does this 3 times then goes to desktop and calibration is out completely again only see cursor if tap far left side of screen.

    #3938
    jawood
    Participant
    #3946
    Mark Williams
    Keymaster

    I think that running calibration from the preference menu within X may be breaking it for you.

    Rather than images, are you able to upload a small video?

    And.. maybe you can make a backup of your SD Card, compress it and upload it somewhere so I can have look.

    Mark --OzzMaker.com --

    #3948
    jawood
    Participant

    attached is a short video of touch screen behaviour.

    #3951
    Mark Williams
    Keymaster

    thanks for that... I see what is happening now... your X and Y axis are swapped.

    look in /etc/X11/xinit/xinitrc and see if you have any lines similar to below;

    DISPLAY=:0 xinput --set-prop 'ADS7846 Touchscreen' 'Evdev Axes Swap' 1
    DISPLAY=:0 xinput --set-prop 'ADS7846 Touchscreen' 'Evdev Axis Inversion' 1 1

    if you do, delete the lines.. and delete /etc/pointercal.xinput and then reboot.

    dont rung xinput from the preference menu as i think it breaks the calibration.

    Mark --OzzMaker.com --

    #3953
    jawood
    Participant

    Thankyou kindly good sir the touch screen is all good now.

    Now just have to get me BerryIMU all working.

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