Backlight and (pwm tone/no_tone) conflict.

[flexiti]

When using audio (pwm) generation from the port (In my case, port 1), the backlight turns off and you need to use haspDevice.set_backlight_pin(38);to restore the backlight.
It's as if the backlight port setting was lost. Anyone had a problem with this?

I change #define BACKLIGHT_CHANNEL 1 // pwm channel 0-15 to different but it not helps

[fvanroie]

This sounds like a hardware limitation of either the device or the ESP32 chip. Without knowing more about the hardware, it's anyone's guess.