Depois de atualizar meu novo ubuntu de 12.04 para 14.04, descobri que o touchpad não está funcionando. O mais estranho é que parece ser detectado, como:
cat /proc/bus/input/devices
dá
I: Bus=0011 Vendor=0002 Product=0007 Version=01b1
N: Name="SynPS/2 Synaptics TouchPad"
P: Phys=isa0060/serio1/input0
S: Sysfs=/devices/platform/i8042/serio1/input/input5
U: Uniq=
H: Handlers=mouse1 event5
B: PROP=1
B: EV=b
B: KEY=e520 30000 0 0 0 0
B: ABS=660800011000003
e também
xinput
dá
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ USB Multi-Smart Mouse id=9 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=12 [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)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Laptop_Integrated_Webcam_HD id=10 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]
↳ Dell WMI hotkeys id=13 [slave keyboard (3)]
também detalhes do touchpad no xinput parecem bem:
xinput --watch-props 12
dá
Device 'SynPS/2 Synaptics TouchPad':
Device Enabled (134): 1
Coordinate Transformation Matrix (136): 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 (253): 2, 7
Device Node (254): "/dev/input/event5"
Evdev Axis Inversion (267): 0, 0
Evdev Axis Calibration (268): <no items>
Evdev Axes Swap (269): 0
Axis Labels (270): "Abs MT Position X" (288), "Abs MT Position Y" (289), "Abs MT Pressure" (290), "Abs Tool Width" (287), "None" (0), "None" (0), "None" (0)
Button Labels (271): "Button Left" (137), "Button Unknown" (256), "Button Right" (139), "Button Wheel Up" (140), "Button Wheel Down" (141)
Evdev Middle Button Emulation (272): 0
Evdev Middle Button Timeout (273): 50
Evdev Third Button Emulation (274): 0
Evdev Third Button Emulation Timeout (275): 1000
Evdev Third Button Emulation Button (276): 3
Evdev Third Button Emulation Threshold (277): 20
Evdev Wheel Emulation (278): 0
Evdev Wheel Emulation Axes (279): 0, 0, 4, 5
Evdev Wheel Emulation Inertia (280): 10
Evdev Wheel Emulation Timeout (281): 200
Evdev Wheel Emulation Button (282): 4
Evdev Drag Lock Buttons (283): 0
Vale a pena mencionar que o mouse externo funciona corretamente. Além disso, na janela "Configurações > Mouse e touchpad" não há configurações para o touchpad, apenas a velocidade da regulação de clique duplo.
Eu ficaria muito grato por qualquer ajuda