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bareboat-necessities / lysmarine_gen

With BBN OS you can build a central boat computer. BBN OS is free and open source. It is based on commonly used community supported open source projects such as SignalK, PyPilot, OpenCPN, and others. BBN OS graphical user interface will let you build a cockpit front-end to all functionality of the OS from chartplotting, dashboards, weather, etc.
https://github.com/bareboat-necessities/lysmarine_gen
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Lightdm service fails to start after installing DSI connected screen drivers (Edatec, Waveshare) #416

Open mgrouch opened 2 months ago

mgrouch commented 2 months ago

Lightdm service fails to start after installing DSI connected screen drivers

users reported it as an issue with edatec ED-HMI3020-101C

Waveshare DSI LCD

See also https://github.com/bareboat-necessities/lysmarine_gen/discussions/327#discussioncomment-6546423

mgrouch commented 2 months ago

image002

mgrouch commented 2 months ago

Also

https://www.cruisersforum.com/forums/f134/recommended-cockpit-platform-285146-10.html#post3896976

mgrouch commented 2 months ago

Per Edatec support after the following changes lightdm starts:

removed /etc/udev/rules.d/99-uinput.rules and modified /usr/share/X11/xorg.conf.d/90-touchinput.conf

user@lysmarine:~ $ cat /usr/share/X11/xorg.conf.d/90-touchinput.conf
Section "InputClass"
    Identifier "calibration"
    Driver "evdev"
    MatchProduct "4-0014 Goodix Capacitive TouchScreen gt911 Synopsys DesignWare I2C adapter"
    MatchDevicePath "/dev/input/event*"
    Option "EmulateThirdButton" "1"
    Option "EmulateThirdButtonTimeout" "750"
    Option "EmulateThirdButtonMoveThreshold" "30"
EndSection
mgrouch commented 2 months ago

Regarding Waveshare DSI touchscreen issues

here is a thread on raspberry pi forums:

https://forums.raspberrypi.com/viewtopic.php?t=366011

mgrouch commented 2 months ago

Rotating DSI display discussion

https://forums.raspberrypi.com/viewtopic.php?t=369626

best way to tell X that the desktop should be rotated is via

xrandr --output DSI-1 --rotate left

or similar

mgrouch commented 1 month ago

Regarding screen rotation on Edatec

Look for CalibrationMatrix

https://www.cruisersforum.com/forums/f134/cant-install-opencpn-on-rpi5-286085.html#post3899802

mgrouch commented 1 month ago

image001 Edatec support was able to solve all issues with their touchscreen on BBN OS:

Hi Mikhail,

I've solved the problem of twofing not working.

It needs to modify “/usr/share/X11/xorg.conf.d/90-touchinput.conf”

Section "InputClass"
    Identifier "calibration"
    Driver "evdev"
    MatchProduct "Goodix Capacitive TouchScreen"
    MatchDevicePath "/dev/input/event*"
    Option "EmulateThirdButton" "1"
    Option "EmulateThirdButtonTimeout" "750"
    Option "EmulateThirdButtonMoveThreshold" "30"
    Option "Calibration" "0 1280 0 800"
    Option "SwapAxes" "1"
    Option "Inversion" "1 0"
EndSection