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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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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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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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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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