Frame buffer relation to console

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1

Hello,

I have build LVGL sample project and run it on Raspberry Pi. It runs fine when I run it from terminal tty1 and it looks crappy when I run it from graphic desktop.

I would like my application always be shown on tty1, no matter in which console it was started from. How to achieve that?

I found my applications uses frame buffer /dev/fb0 device in order to show it’s controls. Is frame buffer somehow related to terminal console?

2

My understanding is that framebuffers and TTYs are separate objects on Linux which happen to draw to the same screen. Your application is being drawn on the framebuffer, not a TTY, meaning it will not be possible for it to “share” with the desktop.

If you want it to look proper on a desktop I would suggest using SDL instead.