Ele começou a funcionar após o seguinte comando no meu Asus K43S:
gsettings set org.gnome.settings-daemon.peripherals.touchpad touchpad-enabled 'true'
Já tentei todos os comandos no terminal, mas ainda não consegui consertá-lo.
Para xinput eu consegui
Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ MOSART Semi. 2.4G Keyboard Mouse id=11 [slave pointer (2)]
⎜ ↳ PS/2 Generic Mouse id=15 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Video Bus id=8 [slave keyboard (3)]
↳ Sleep Button id=9 [slave keyboard (3)]
↳ MOSART Semi. 2.4G Keyboard Mouse id=10 [slave keyboard (3)]
↳ USB 2.0 UVC HD Webcam id=12 [slave keyboard (3)]
↳ Asus WMI hotkeys id=13 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=14 [slave keyboard (3)]
Nenhum dos posts pode ajudar a corrigir: (