GFX HAT python API

I install the GFX HAT python lib and the examples doesn’t work. - background change to green all buttons works but not show “hello word” - no error but nothing happens - background change to blue ish and nothing happens - works 100%

Any idea?

I often find that a reboot after installing new hardware fixes a lot of issues. How exactly did you install it?

I follow this:

I run “curl | bash”
I tested in a old Raspberry Pi2 and works, then I was thinking that could be something in my SO, so I formatted and started a new image, but the error is the same … so now I not sure if is something in my Raspberry PI
Using model 3b