I keep forgetting I have to use the 'fn' key, in combination with the function keys, to get the behavior I want. E. G., I need to do 'alt+fn+f1', to get to the Mate menus. Just plain 'alt+f1' toggles audio-mute. There's probably a way to change this in BIOS but those menus are inaccessible. Maybe Dell has a utility for doing this? #ComputerPlay #gnu #linux