I tried to keypad using button matrix but slow response

General discussion
1

I designed pad with help button matrix working fine but seems slow , while using keypad widget faster compared to button matrix.
general Button response also slow
so kindly suggest way to speed up the response of button operations.
My machine is running linux
Any reference avaible for framebuffer DMA

2

Hi!

Can you give us more details such as: what hardware are you running LVGL, what is the screen resolution, etc.

This might help us find a possible problem or solution.