Eu tentei muito fazer o touchpad ativado no Ubuntu 16.04.1. Eu reinstalei os drivers, kernals, estava usando o synclient (na verdade nunca mudou a opção "TouchpadOff"), dconf. A única coisa que me ajudou é a configuração dentro da opção de touchpad BIOS (ou no meu caso UEFI) para "Basic".
Mas eu tenho dual boot no Ubuntu-Win10 e usar o Windows com a opção "Basic" não é satisfatória.
Então a pergunta: como habilitar o touchpad sem alterar as opções do BIOS?
UPD:
Não é possível definir esta opção na configuração de sincronização também:
synclient | grep Touchpad
TouchpadOff = 2
synclient Touchpadoff=0
synclient | grep Touchpad
TouchpadOff = 0
synclient | grep Touchpad
TouchpadOff = 2
'xinput':
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ A4TECH USB Device id=12 [slave pointer (2)]
⎜ ↳ A4TECH USB Device id=13 [slave pointer (2)]
⎜ ↳ PS/2 Synaptics TouchPad 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)]
↳ Power Button id=9 [slave keyboard (3)]
↳ Sleep Button id=10 [slave keyboard (3)]
↳ HD WebCam id=11 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=14 [slave keyboard (3)]
↳ Acer WMI hotkeys id=16 [slave keyboard (3)]
'xinput list-props':
Device 'PS/2 Synaptics TouchPad':
Device Enabled (137): 1
Coordinate Transformation Matrix (139): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (263): 0
Device Accel Constant Deceleration (264): 1.000000
Device Accel Adaptive Deceleration (265): 1.000000
Device Accel Velocity Scaling (266): 10.000000
Device Product ID (257): 2, 1
Device Node (258): "/dev/input/event9"
Evdev Axis Inversion (267): 0, 0
Evdev Axes Swap (269): 0
Axis Labels (270): "Rel X" (147), "Rel Y" (148)
Button Labels (271): "Button Left" (140), "Button Middle" (141), "Button Right" (142), "Button Wheel Up" (143), "Button Wheel Down" (144)
Evdev Scrolling Distance (272): 0, 0, 0
Evdev Middle Button Emulation (273): 0
Evdev Middle Button Timeout (274): 50
Evdev Third Button Emulation (275): 0
Evdev Third Button Emulation Timeout (276): 1000
Evdev Third Button Emulation Button (277): 3
Evdev Third Button Emulation Threshold (278): 20
Evdev Wheel Emulation (279): 0
Evdev Wheel Emulation Axes (280): 0, 0, 4, 5
Evdev Wheel Emulation Inertia (281): 10
Evdev Wheel Emulation Timeout (282): 200
Evdev Wheel Emulation Button (283): 4
Evdev Drag Lock Buttons (284): 0