I upgraded from 17.04 to 17.10 on a Lenovo T540p which has broken two finger touchpad scrolling and right clicking

Question

Trackpad two finger scrolling and right-click issue with Ubuntu 17.10 (i386, 64bit, GNOME 3.26.1) on a Lenovo T540p (the model with a Intel Core i5-4210M Haswell CPU etc)

Solution 1

I have the same issue on my Thinkpad T450s. This issue is referenced on launchpad here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478

It seems to happen after a resume. The workaround described on LP1722478 works for me:

sudo modprobe -r psmouse
sudo modprobe psmouse

Solution 2

Update for other ThinkPad users, as per the hard work done here, the workaround is as follows...

Edit the file /etc/default/grub and change the line:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

to

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash psmouse.synaptics_intertouch=0"

then

sudo update-grub

and reboot.

Solution 3

About the two finger scrolling, try with three fingers, that worked out of the box for me on my Lenovo X1 Carbon 2015.

Solution 4

I guess I know what you mean. If you install Gnome Tweaking Tool, a.k.a. Tweaks, you can go to Keyboard & Mouse > Click Method > Fingers. That might solve it.

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Comments

[Rinzwind]

What is the question? I only see a statement.

[Majal]

This affected my ThinkPad X250 also on 17.10. The answer of @hpotter40 below worked for me.

[Chester]

Awesome! Nicer than the modprobe solution IMO since that also requires adding the modprobe commands in the resume in pm-utils.

[tanius]

Same here, using Ubuntu 19.10 on a Lenovo ThinkPad T440s. As mentioned in LP #1722478, this behavior is part of the bug and not intended.