所有快捷键都是在config(.def).h里设置的，音量和亮度按键名字如下
XF86XK_AudioLowerVolume,
XF86XK_AudioRaiseVolume,
XF86XK_AudioMute,
XF86XK_MonBrightnessDown,
XF86XK_MonBrightnessUp,
然后设置调用amixer, brightnessctl等命令