I'm new to Linux but managed to install the game and the required files. It then ran, and took me to the "adjust brightness" screen. There is a plus, a minus, and a Done option. But I can't select any of them, either with the mouse, keyboard, or controller. In the end I have to quit (by pressing F11 to get a taskbar, then clicking the close gadget).

Did I miss something obvious? I think in Windows I just used the mouse to click the elements.