Adjust Screen Brightness (pi-topOS - Bullseye)

pi-top [1] + pi-topCEED
#1

The adjustment of the screen brightness with the keys F11 and F12 doesn’t work on my pi-top [1] with raspberry pi 4.

Is there a way to do this with the command line?
Any help appreciated!

#2

With raspbian buster and the pi-top sdk installed, I’m able to control the display brightness with the pitop cli:

> pi-top display brightness 7

But keys don’t work either.

#3

got keys working (raspbian buster) by editing

sudo nano /etc/xdg/openbox/lxde-pi-rc.xml

<!-- Keybindings for pitop -->
<keybind key="0xC6">
  <action name="Execute">
    <command>sh -c "if test -e /usr/bin/pi-top; then /usr/bin/pi-top display brightness -d; fi"</command>
  </action>
</keybind>
<keybind key="0xC7">
  <action name="Execute">
    <command>sh -c "if test -e /usr/bin/pi-top; then /usr/bin/pi-top display brightness -i; fi"</command>
  </action>
</keybind>