Making Yocto Image For rpi 3b work on 3.5inch RPi LCD Display
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Hello community
I have built a yocto image for my raspberry pi 3b + and everything is working fine on HDMI Display.
The only problem is that i want that image to display on 3.5 LCD display. I have added the support for my display in the local.conf using MACHINE_FEATURES += "pitft35r"
However, the screen is still blank.Any idea would be really appreciated
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Hello community
I have built a yocto image for my raspberry pi 3b + and everything is working fine on HDMI Display.
The only problem is that i want that image to display on 3.5 LCD display. I have added the support for my display in the local.conf using MACHINE_FEATURES += "pitft35r"
However, the screen is still blank.Any idea would be really appreciated
Hi,
How is that display seen by the system ?
Which backend are you using to show your application ? -
@SGaist my application is Qt based .What do you mean by backend?
The image uses x11 to launch the window manager and the default services like keyboard and wifi@Ronel_qtmaster Qt can use EGLFS, wayland, xcb, etc. So since you have X11 running, your application is using the xcb backend (platform plugin).
Does you X11 server properly show on your LCD device ?
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Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct -
@Ronel_qtmaster Qt can use EGLFS, wayland, xcb, etc. So since you have X11 running, your application is using the xcb backend (platform plugin).
Does you X11 server properly show on your LCD device ?
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@SGaist no it is not showing on my lcd display, only on HDMI
@Ronel_qtmaster said in Making Yocto Image For rpi 3b work on 3.5inch RPi LCD Display:
no it is not showing on my lcd display
Then you have to solve this first, has nothing to do with Qt.
