Middle mouse click emulation on trackpad, how can I set it?
leoperbo's answer worked for me with Ubuntu 12.04 but I had to change the 266 number at leoperbo's suggested command. You shouldn't use this command without carefully finding the 3-digit number
xinput set-int-prop NN 266 8 2 3 0 0 1 2 3The other command though should work without problems (had numbers for the setup which didn't make sense hence that I changed them)
xinput set-prop "ETPS/2 Elantech Touchpad" "Synaptics Tap Action" 2, 3, 0, 0, 1, 2, 3Just in case I wrote the following guide to find your NN and 266 for your touchpad. At the end also I explain the values you set so you can choose your optimal settings. Also you should probably read leoperbo's answer for setting it up permanently
1st use the following command in the terminal
xinput list
You will get something like this
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ ETPS/2 Elantech Touchpad id=13 [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)]
↳ Sleep Button id=9 [slave keyboard (3)]
↳ 1.3M WebCam id=10 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=11 [slave keyboard (3)]
↳ Acer WMI hotkeys id=12 [slave keyboard (3)]
What we need is the touchpad's id (in my case 13)
2nd use the following command in the terminal replacing the XX with the id number you found above
xinput list-props XX
You will get something like this
Device 'ETPS/2 Elantech Touchpad':
Device Enabled (144): 1
Coordinate Transformation Matrix (146): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (269): 1
Device Accel Constant Deceleration (270): 2.500000
Device Accel Adaptive Deceleration (271): 1.000000
Device Accel Velocity Scaling (272): 12.500000
Synaptics Edges (273): 56, 1352, 34, 606
Synaptics Finger (274): 1, 1, 256
Synaptics Tap Time (275): 180
Synaptics Tap Move (276): 68
Synaptics Tap Durations (277): 180, 180, 100
Synaptics ClickPad (278): 0
Synaptics Tap FastTap (279): 1
Synaptics Middle Button Timeout (280): 75
Synaptics Two-Finger Pressure (281): 282
Synaptics Two-Finger Width (282): 7
Synaptics Scrolling Distance (283): 30, 30
Synaptics Edge Scrolling (284): 0, 0, 0
Synaptics Two-Finger Scrolling (285): 1, 0
Synaptics Move Speed (286): 1.000000, 1.750000, 0.129366, 40.000000
Synaptics Edge Motion Pressure (287): 30, 160
Synaptics Edge Motion Speed (288): 1, 123
Synaptics Edge Motion Always (289): 0
Synaptics Off (290): 2
Synaptics Locked Drags (291): 0
Synaptics Locked Drags Timeout (292): 5000
Synaptics Tap Action (293): 2, 3, 0, 0, 1, 3, 0
Synaptics Click Action (294): 1, 1, 0
Synaptics Circular Scrolling (295): 0
Synaptics Circular Scrolling Distance (296): 0.100000
Synaptics Circular Scrolling Trigger (297): 0
Synaptics Circular Pad (298): 0
Synaptics Palm Detection (299): 0
Synaptics Palm Dimensions (300): 10, 200
Synaptics Coasting Speed (301): 20.000000, 50.000000
Synaptics Pressure Motion (302): ... of unknown type CARDINAL
Synaptics Pressure Motion Factor (303): 1.000000, 1.000000
Synaptics Resolution Detect (304): 1
Synaptics Grab Event Device (305): 1
Synaptics Gestures (306): 1
Synaptics Capabilities (307): 1, 0, 1, 1, 1, 1, 1
Synaptics Pad Resolution (308): 1, 1
Synaptics Area (309): 0, 0, 0, 0
Synaptics Noise Cancellation (310): 7, 7
Device Product ID (263): 2, 14
Device Node (264): "/dev/input/event11"
What we need to find above is this line
Synaptics Tap Action (293): 2, 3, 0, 0, 1, 3, 0
and note down the number inside the ( ), which in my case is 293
3rd and final command at the terminal ( Replace XX with the id and YYY with the number inside the ( ) which for my laptop were XX=13 and YYY=293 )
xinput set-int-prop XX YYY 8 2 3 0 0 1 2 3
The values 2 3 0 0 1 2 3 are the following settings at the correct order 0=disabled 1=left click 2=middle 3=right
Option "RTCornerButton"
Which mouse button is reported on a right top corner tap.
Option "RBCornerButton"
Which mouse button is reported on a right bottom corner tap.
Option "LTCornerButton"
Which mouse button is reported on a left top corner tap.
Option "LBCornerButton"
Which mouse button is reported on a left bottom corner tap.
Option "TapButton1"
Which mouse button is reported on a non-corner one-finger tap.
Option "TapButton2"
Which mouse button is reported on a non-corner two-finger tap.
Option "TapButton3"
Which mouse button is reported on a non-corner three-finger tap.
To fix the middle click you can use the following command:
xinput set-int-prop NN 266 8 2 3 0 0 1 2 3
Where NN is the id of the mousepad device, you can see it with the command xinput list. 266 is the id of the property "Synaptics Tap Action" you can see it with xinput list-props NN. Example:
xinput set-prop "ETPS/2 Elantech Touchpad" "Synaptics Tap Action" 8, 9, 0, 0, 1, 2, 3
You have to run that command after each resume. To preserve your synaptics configuration after resume, you can follow this steps (from wiki.archlinux.org):
Gnome settings daemon may override existing settings (for example ones set in xorg.conf.d) for which there is no equivalent in any of the graphical configuration utilities. It is possible to stop gnome from touching mouse settings at all:
1. Run dconf-editor 2. Edit /org/gnome/settings-daemon/plugins/mouse/ 3. Uncheck the active setting It will now respect your system's existing synaptics configuration.
It worked for me on Ubuntu 11.10 AND now I have:
Two-finger scrolling.
Middle Click with two fingers tap.
Right Click (tap at bottom right of scroll area).