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#1 2017-03-29 16:13:23

tlvince
Member
Registered: 2010-07-06
Posts: 68
Website

Small touchpad movements aren't registered with libinput

Using libinput, my touchpad appears to have an issue whereby small/slight movements aren't registered (the cursor doesn't respond). This can be solved by setting "noise cancellation" to 0 using the synaptics driver. Is there an equivalent for libinput? (libinput 1.6.3-1, wayland 1.13.0-1, gnome 3.22.3-1).

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#2 2017-04-03 06:14:22

xmbr
Member
Registered: 2017-01-09
Posts: 5

Re: Small touchpad movements aren't registered with libinput

not really useful reply but I've this as well. Couldn't find any solution so I switched to synaptics which IMO behaves better in that matter.

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#3 2017-04-03 16:09:32

tlvince
Member
Registered: 2010-07-06
Posts: 68
Website

Re: Small touchpad movements aren't registered with libinput

xmbr wrote:

not really useful reply but I've this as well. Couldn't find any solution so I switched to synaptics which IMO behaves better in that matter.

I believe this issue is due to hysteresis being enabled by default for all devices, without being configurable.

I've whipped up a quick patch to disable it. Could you check whether libinput-no-hysteresis works any better?

Last edited by tlvince (2017-04-03 16:09:55)

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#4 2017-04-08 16:19:09

The Loko
Member
From: Spain
Registered: 2014-07-23
Posts: 100

Re: Small touchpad movements aren't registered with libinput

tlvince wrote:
xmbr wrote:

not really useful reply but I've this as well. Couldn't find any solution so I switched to synaptics which IMO behaves better in that matter.

I believe this issue is due to hysteresis being enabled by default for all devices, without being configurable.

I've whipped up a quick patch to disable it. Could you check whether libinput-no-hysteresis works any better?

I have this issue on my Asus X555LJ. I tried with this patch and it doesn't solve this, in fact it's even worse.
Had to downgrade to libinput 1.6.3-1 and now it works fine.

Last edited by The Loko (2017-04-08 16:19:29)

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