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Trackpad Sensitivity

Community Veteran
Posts: 1,116
Thanks: 6
Registered: 28-08-2007

Trackpad Sensitivity

Can anyone make any sense of the numbers shown in the output?
neil@neil-u100:~$ xinput --watch-props "FSPPS/2 Sentelic FingerSensingPad"
Device 'FSPPS/2 Sentelic FingerSensingPad':
Device Enabled (135): 1
Coordinate Transformation Matrix (137): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (262): 0
Device Accel Constant Deceleration (263): 1.000000
Device Accel Adaptive Deceleration (264): 1.000000
Device Accel Velocity Scaling (265): 10.000000
Device Product ID (254): 2, 15
Device Node (255): "/dev/input/event5"
Evdev Axis Inversion (266): 0, 0
Evdev Axes Swap (268): 0
Axis Labels (269): "Rel X" (145), "Rel Y" (146), "Rel Horiz Wheel" (260), "Rel Vert Wheel" (261)
Button Labels (270): "Button Left" (138), "Button Middle" (139), "Button Right" (140), "Button Wheel Up" (141), "Button Wheel Down" (142), "Button Horiz Wheel Left" (143), "Button Horiz Wheel Right" (144), "Button Unknown" (257), "Button Unknown" (257), "Button Forward" (258), "Button Back" (259), "Button Unknown" (257), "Button Unknown" (257), "Button Unknown" (257), "Button Unknown" (257)
Evdev Middle Button Emulation (271): 0
Evdev Middle Button Timeout (272): 50
Evdev Third Button Emulation (273): 0
Evdev Third Button Emulation Timeout (274): 1000
Evdev Third Button Emulation Button (275): 3
Evdev Third Button Emulation Threshold (276): 20
Evdev Wheel Emulation (277): 0
Evdev Wheel Emulation Axes (278): 0, 0, 4, 5
Evdev Wheel Emulation Inertia (279): 10
Evdev Wheel Emulation Timeout (280): 200
Evdev Wheel Emulation Button (281): 4
Evdev Drag Lock Buttons (282): 0

I was following this guide on altering my touchpad sensitivity and naively thought there was going to be 3 numbers to deal with which I needed to increase  Crazy The issue I'm having is the touch pad is far too sensitive. For instance if I slide across a tab as gently as I can I open up the tab or in drop down menus.
Unsure of which numbers I need to alter to make it less sensitive.
4 REPLIES
Community Veteran
Posts: 4,939
Thanks: 357
Fixes: 16
Registered: 10-06-2010

Re: Trackpad Sensitivity

Perhaps you've solved the problem yourself already, if not, perhaps the problem is that it's not using the synaptics driver, that output looks like it's using the more generic evdev driver.
Community Veteran
Posts: 1,116
Thanks: 6
Registered: 28-08-2007

Re: Trackpad Sensitivity

Grin no not managed to suss this one yet although I've been that busy at work I've had to put it on the back burner. Is the evdev driver adjustable at all?
Community Veteran
Posts: 4,939
Thanks: 357
Fixes: 16
Registered: 10-06-2010

Re: Trackpad Sensitivity

Obviously, it has those properties you listed, you'd have to experiment with the "Device Accel" ones. Is the xorg synaptics driver installed? Its man page says it works for any touchpad (that has a kernel driver), not just Synaptics ones.
VileReynard
Seasoned Pro
Posts: 10,646
Thanks: 206
Fixes: 9
Registered: 01-09-2007

Re: Trackpad Sensitivity

My Linux allows a GUI config of mouses and touchpads; I don't have a touchpad - why not plug a mouse in?
For comparison purposes with the OP's output, my mouse says:-
jeremy@hector ~ $ xinput --watch-props "Microsoft Comfort Optical Mouse 1000"
Device 'Microsoft Comfort Optical Mouse 1000':
Device Enabled (142): 1
Coordinate Transformation Matrix (144): 1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
Device Accel Profile (267): 0
Device Accel Constant Deceleration (268): 1.000000
Device Accel Adaptive Deceleration (269): 1.000000
Device Accel Velocity Scaling (270): 10.000000
Device Product ID (261): 1118, 246
Device Node (262): "/dev/input/event2"
Evdev Axis Inversion (271): 0, 0
Evdev Axes Swap (273): 0
Axis Labels (274): "Rel X" (152), "Rel Y" (153), "Rel Vert Wheel" (289)
Button Labels (275): "Button Left" (145), "Button Middle" (146), "Button Right" (147), "Button Wheel Up" (148), "Button Wheel Down" (149), "Button Horiz Wheel Left" (150), "Button Horiz Wheel Right" (151)
Evdev Scrolling Distance (276): 1, 1, 1
Evdev Middle Button Emulation (277): 1
Evdev Middle Button Timeout (278): 50
Evdev Third Button Emulation (279): 0
Evdev Third Button Emulation Timeout (280): 1000
Evdev Third Button Emulation Button (281): 3
Evdev Third Button Emulation Threshold (282): 20
Evdev Wheel Emulation (283): 0
Evdev Wheel Emulation Axes (284): 0, 0, 4, 5
Evdev Wheel Emulation Inertia (285): 10
Evdev Wheel Emulation Timeout (286): 200
Evdev Wheel Emulation Button (287): 4
Evdev Drag Lock Buttons (288): 0

Which looks basically rather similar.