Touch panel calibration problem

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    User avatar
    Posts: 1
    Joined: Wed Aug 23, 2017 9:25 am

    Wed Aug 23, 2017 9:48 am

    Hello, I have a calibration problem with 7" screen and touch panel.
    On the left side, very close to border (up to 1 cm) in the middle of the screen height, the panel is shifting the input horisontaly about 1 cm right. In the left corners it works very well, I can press the Start button, but I can't press the power off buton because my touch is reported about 1-2cm to the right from the place touched.
    Here is the video: ... Gpsc2RBRWM

    I had other problem with that screen, before the touch panel driver update it was shifting touch at the right side of the screen, I could't touch the X button for closing of the windows.

    One weird thing I have noticed is that in "Tablet PC settings" in display options there is that the panel is: flat panel (640x480 60Hz).

    Any ideas how to make this touch panel work properly?
    Thanks, Marek

    User avatar
    Posts: 1
    Joined: Wed Apr 03, 2019 8:08 am

    Wed Apr 03, 2019 8:34 am

    Have the same problem here.
    Offset starts ca. in the middle of the screen and grows exponentionally.
    Touch calibration is not possible.. I can not touch the right calibration points, for the touchrecognition is offset... just as Marek described.

    Any Idea would help (having 4 devices with identical setup and same problem... )

    User avatar
    Posts: 3
    Joined: Sun Jun 09, 2019 2:59 pm

    Sat Jun 29, 2019 8:15 am

    I have lattepanda 2gb 32gb CR200 v1.1.I dont have lattepanda original in alli expresse i have found one 7inch 30fpc pin lcd display..will this display work with my LP or i habe to buy the original one?i have uploaded the picture of that display...need help.
    I am talking about this display..
    Screenshot_20190629_131355.jpg (462.84 KiB) Viewed 9590 times

    User avatar
    Posts: 3
    Joined: Sun Jun 09, 2019 2:59 pm

    Thu Sep 12, 2019 8:33 am

    Heh i have touch issue. I bought raspberry pi 7inch hdmi touch display from the market bt when the display is powered on from LP usb den after 10seconds the panda gets switched off...And when i power on the display from external source the touch does not work and LP didnot get off

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