Minecraft coordinates not shown under F3?

st
3

Have a PC that turns up the screen brightness as soon as you press F3, so the coordinates etc. Are never shown to me. Can anyone help me with this?

Ca

You have to change function key lock. Do the other F-keys on your PC also have functions?

No

You have to switch off debug info under reduced settings.

fa

Depending on the PC, you have to press the corresponding F key Fn to use the normal commands of the F keys. I have one myself