My touchpad works like a touchscreen
So I recently installed Ubuntu on my Alienware/Dell and everything was fine until I upgraded to 16.10.
After that out of nowhere my touchpad started acting like a touchscreen (or a graphics tablet) i.e. the pointer jumps to wherever I touch on the pad(like its mapped to the screen.
I tried everything I could find, namely remapping xinput
or even removing and adding the mouse module psmouse
but nothing worked. I could not find any other solution to this.
Output of xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ SIGMACHIP Usb Mouse id=10 [slave pointer (2)]
⎜ ↳ SynPS/2 Synaptics TouchPad id=14 [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)]
↳ Integrated_Webcam_HD id=11 [slave keyboard (3)]
↳ Intel HID events id=12 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=13 [slave keyboard (3)]
↳ Dell WMI hotkeys id=15 [slave keyboard (3)]
↳ SynPS/2 Synaptics TouchPad
is the one that I am talking about.
Output of xinput list-props 14
Device 'SynPS/2 Synaptics TouchPad':
Device Enabled (165): 1
Coordinate Transformation Matrix (167): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (295): 0
Device Accel Constant Deceleration (296): 1.000000
Device Accel Adaptive Deceleration (297): 1.000000
Device Accel Velocity Scaling (298): 10.000000
Device Product ID (284): 2, 7
Device Node (285): "/dev/input/event6"
Evdev Axis Inversion (299): 0, 0
Evdev Axis Calibration (300): <no items>
Evdev Axes Swap (301): 0
Axis Labels (302): "Abs MT Position X" (292), "Abs MT Position Y" (293), "Abs MT Pressure" (294), "Abs Tool Width" (291), "None" (0), "None" (0), "None" (0)
Button Labels (303): "Button Left" (168), "Button Unknown" (287), "Button Right" (170), "Button Wheel Up" (171), "Button Wheel Down" (172)
Evdev Scrolling Distance (304): 0, 0, 0
Evdev Middle Button Emulation (305): 0
Evdev Middle Button Timeout (306): 50
Evdev Third Button Emulation (307): 0
Evdev Third Button Emulation Timeout (308): 1000
Evdev Third Button Emulation Button (309): 3
Evdev Third Button Emulation Threshold (310): 20
Evdev Wheel Emulation (311): 0
Evdev Wheel Emulation Axes (312): 0, 0, 4, 5
Evdev Wheel Emulation Inertia (313): 10
Evdev Wheel Emulation Timeout (314): 200
Evdev Wheel Emulation Button (315): 4
Evdev Drag Lock Buttons (316): 0
I also noticed that people out there get a problem opposite to mine (i.e. their touchscreen acts like a touchpad)
Please suggest what to do.
There is no user space touchpad driver installed. That is why it is treated like a relative device.
Run
sudo apt install xserver-xorg-input-all
and restart the session.
If you have hwe-16.04
packages installed, you need to run
sudo apt install xserver-xorg-input-all-hwe-16.04