Posts by Tressieres

  • Touch uncalibrated in QT5.12

    We had to change from "buildroot-2016.05-fsimx6sx-V2.1" to "buildroot-2019.05.3-fsimx6sx-B2019.11.1" because of the new ethernet chips and with the new filesystem it seems that Qt 5.12 doesn't get the file from pointercal calibration. Touch calibration works correctly with ts_test but not in QT.


    Environment Variables:

    DISPLAY=:0

    FB_MULTI_BUFFER=2

    QT_EGLFS_IMX6_NO_FB_MULTI_BUFFER=2

    QT_QPA_EGLFS_DEPTH=32

    QT_QPA_EGLFS_DISABLE_INPUT=1

    QT_QPA_EGLFS_HEIGHT=800

    QT_QPA_EGLFS_HIDECURSOR=0

    QT_QPA_EGLFS_WIDTH=1280

    QT_QPA_FB_TSLIB=1

    QWS_MOUSE_PROTO=tslib

    TSLIB_CALIBFILE=/etc/pointercal

    TSLIB_CONFFILE=/etc/ts.conf

    TSLIB_CONSOLEDEVICE=/dev/tty

    TSLIB_FBDEVICE=/dev/fb0

    TSLIB_PLUGINDIR=/usr/lib/ts

    TSLIB_TSDEVICE=/dev/input/event1


    Application call:

    ./myapp --platform eglfs --plugin Tslib

  • wrong date

    Of course I use a battery.
    When I disconnect the battery, the system returns to the year 1970, the first linux date. But sometimes when I start the system the hardware clock is in year 1950, an impossible date for linux.

  • GPIO SD no change

    Hello,


    GPIO ports of SD_A and SD_B don't change


    For example.
    echo 21 > /sys/class/gpio/export
    echo out > /sys/class/gpio/gpio21/direction
    echo 0 > /sys/class/gpio/gpio21/value


    I also tried to disable the SD in the kernel but I feel the same don't change are always 3,3V


    Thank you