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iMX7 - epdc e-ink and X11

Question asked by Milan Vitek on Mar 21, 2018
Latest reply on Mar 26, 2018 by Milan Vitek



I am looking for some help regarding e-ink display. I am using VAR-SOM-MX7 module with iMX7 and ES133UT2 display on Debian Stretch 9.3.

Right now I have it mostly up and running - mxc_epdc_v2_fb_test.out unit test works just fine. Is it possible to somehow configure X11 to be used with this display and refresh it on demand? My ultimate goal is to have our java gui app running on this system and to be able to refresh the screen on demand.


I have this configuration in /usr/share/X11/xorg.conf.d/99-fbdev.conf but I don't really know what to do next or whether this is actually correct.


Thank you.


Section "Monitor"
    Identifier  "Monitor1"

    Mode "1600x1200"
        # D: 0.025 MHz, H: 0.015 kHz, V: 0.012 Hz
        DotClock 0.026
        HTimings 1600 1676 1688 1700
        VTimings 1200 1205 1207 1211
        Flags    "-HSync" "-VSync"

Section "Screen"
    Identifier  "Screen1"
    Device      "Kernel Framebuffer Device"
    Monitor     "Monitor1"

Section "Device"
    Identifier  "Kernel Framebuffer Device"
    Driver      "fbdev"
    Option      "fbdev" "/dev/fb2"

Section "ServerFlags"
    Option "BlankTime"  "0"
    Option "StandbyTime"  "0"
    Option "SuspendTime"  "0"
    Option "OffTime"  "0"