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#1 2017-01-06 03:30:45

CTAG
Member
Registered: 2013-10-14
Posts: 62

Dell Precision 7710 Trackpoint Low Sensitivity

Hi,

I have a Dell Precision 7710 with a touchpad and trackpoint / pointing stick that works, but has very low sensitivity / speed and there's no middle button scrolling.

In order to follow the wiki's directions, it looks like I need to be able to reference the device in 'xinput list', but the trackpoint itself isn't listed.

$ xinput list
⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ ImPS/2 Generic Wheel Mouse              	id=12	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
...
$ xinput list-props 12
Device 'ImPS/2 Generic Wheel Mouse':
	Device Enabled (139):	1
	Coordinate Transformation Matrix (141):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Accel Speed (275):	0.000000
	libinput Accel Speed Default (276):	0.000000
	libinput Accel Profiles Available (277):	1, 1
	libinput Accel Profile Enabled (278):	1, 0
	libinput Accel Profile Enabled Default (279):	1, 0
	libinput Natural Scrolling Enabled (280):	0
	libinput Natural Scrolling Enabled Default (281):	0
	libinput Send Events Modes Available (259):	1, 0
	libinput Send Events Mode Enabled (260):	0, 0
	libinput Send Events Mode Enabled Default (261):	0, 0
	libinput Left Handed Enabled (282):	0
	libinput Left Handed Enabled Default (283):	0
	libinput Scroll Methods Available (284):	0, 0, 1
	libinput Scroll Method Enabled (285):	0, 0, 0
	libinput Scroll Method Enabled Default (286):	0, 0, 0
	libinput Button Scrolling Button (287):	2
	libinput Button Scrolling Button Default (288):	274
	libinput Middle Emulation Enabled (289):	1
	libinput Middle Emulation Enabled Default (290):	0
	Device Node (262):	"/dev/input/event10"
	Device Product ID (263):	2, 5
	libinput Drag Lock Buttons (291):	<no items>
	libinput Horizontal Scroll Enabled (264):	1

Where both the touchpad and trackpoint appear to be recognized as "ImPS/2 Generic Wheel Mouse". Changing the accel speed and middle emulation properties doesn't seem to have any effect.

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#2 2017-02-04 00:06:25

CTAG
Member
Registered: 2013-10-14
Posts: 62

Re: Dell Precision 7710 Trackpoint Low Sensitivity

It looks like a recent update to some package -- maybe libinput -- has changed things for the better.

$ xinput --list
⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
⎜   ↳ AlpsPS/2 ALPS DualPoint Stick           	id=12	[slave  pointer  (2)]
⎜   ↳ AlpsPS/2 ALPS DualPoint TouchPad        	id=13	[slave  pointer  (2)]
⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
    ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
$ xinput list-props 12
Device 'AlpsPS/2 ALPS DualPoint Stick':
	Device Enabled (140):	1
	Coordinate Transformation Matrix (142):	1.000000, 0.000000, 0.000000, 0.000000, 1.000000, 0.000000, 0.000000, 0.000000, 1.000000
	libinput Accel Speed (275):	-0.600000
	libinput Accel Speed Default (276):	0.000000
	libinput Accel Profiles Available (277):	1, 1
	libinput Accel Profile Enabled (278):	1, 0
	libinput Accel Profile Enabled Default (279):	1, 0
	libinput Natural Scrolling Enabled (280):	0
	libinput Natural Scrolling Enabled Default (281):	0
	libinput Send Events Modes Available (260):	1, 0
	libinput Send Events Mode Enabled (261):	0, 0
	libinput Send Events Mode Enabled Default (262):	0, 0
	libinput Left Handed Enabled (282):	0
	libinput Left Handed Enabled Default (283):	0
	libinput Scroll Methods Available (284):	0, 0, 1
	libinput Scroll Method Enabled (285):	0, 0, 1
	libinput Scroll Method Enabled Default (286):	0, 0, 1
	libinput Button Scrolling Button (287):	2
	libinput Button Scrolling Button Default (288):	2
	libinput Middle Emulation Enabled (289):	0
	libinput Middle Emulation Enabled Default (290):	0
	Device Node (263):	"/dev/input/event8"
	Device Product ID (264):	2, 8
	libinput Drag Lock Buttons (291):	<no items>
	libinput Horizontal Scroll Enabled (292):	1

Now the trackpoint and touchpad are separated in the config, hooray! I'm still looking around at the options available, but the default speed/sensitivity on the trackpoint is almost *too* high; the cursor jumps and it's difficult to click buttons with the trackpoint.

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#3 2017-05-31 21:52:32

planb2007
Member
Registered: 2015-02-04
Posts: 2

Re: Dell Precision 7710 Trackpoint Low Sensitivity

Hey there!

I recently switched to a E5570 and are faceing the same issue. I managed to throttle down the total speed of the trackpoint using

xinput --set prop 12 277 -0.900000

But like you mentioned, the acceleration is way to high to work. Have you been able to fix the issue?

Cheers!

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#4 2017-05-31 21:54:20

CTAG
Member
Registered: 2013-10-14
Posts: 62

Re: Dell Precision 7710 Trackpoint Low Sensitivity

I wasn't able to ever really get it working, unfortunately, and I stopped using that laptop frequently enough to keep searching for a solution.

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