display and emmc build

    After building fsimx8mm_qt5_wayland_mmc_defconfig and transferring the sdcard image to the emmc, the display does not show anything after boot.

    When I try to write to the framebuffer this error is displayed:

    open /dev/fb0: No such file or directory

    The display is 7" TFT LVDS Display mit PCAP Touch (J070WVTC0211).

    I suppose the devicetree is not correct. I use picocoremx8mm.dtb that comes with the build.

    I attached the command line output if that helps.

    Dear Mr. Rohr,


    I guess the default device-tree which you are using does not have the display support for J070WVTC0211. So you should have the following dtb file "picocoremx8mm-lcdif-tc358764-j070wvtc0211.dtb" in your buildroot directory "output/images". Please install this file on your emmc partition and rename it to "picocoremx8mm.dtb". This should fix your issue.


    Your F&S Support Team

    F&S Elektronik Systeme GmbH
    As this is an international forum, please try to post in English.
    Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.

    Hi,


    can you describe exactly what is your goal, and what´s your problem?


    Your F&S Support Team

    F&S Elektronik Systeme GmbH
    As this is an international forum, please try to post in English.
    Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.