brightness applet - "cannot get laptop panel brightness"

[LTFC2020]

hi
my laptop screen is a bit on the dark side so I added the brightness applet to the panel but I get the message that "cannot get laptop panel brightness"
is there another way to adjust brightness in ubuntu?
or to config the applet?

[kiridude]

Go to system (I think preferences are here cuz I'm using cairo dock) > preferences > power management > (tab) on Ac power and adjust screen brightness there.

[LTFC2020]

I couldn`t see a screen brightness option there (?)

[kiridude]

What version are you using?

I assumed you were using 8.10. where the window I mentioned looks like this:

[kiridude]

sorry, wrong image format:

[LTFC2020]

8.04