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Guys!

I have very strange problem with ALPS touchpad (DELL Latitude E7470 laptop) on Ubuntu 16.04 (the same issue on 16.10, but not on Mint Cin 18.3): when I try to produce right click on touchpad (ALPS) via two finger gesture I have real right click only with probability about 1/4. With probability 3/4 I haven't one (with the same initial conditions). To be honest, I can produce right click only after two times two finger gesture. I have read related topics and FAQs but my experiments with tuning parameters doesn't solve a problem.

Thank you.

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  • Are you using libinput or xorg-synaptics?
    – Pilot6
    May 1, 2017 at 9:33
  • Pilot6, I have both libinput and xorg-input-synaptics installed on a system, but in Xorg.0.log I see only the following: "LoadModule: "synaptics""
    – Konstantin
    May 1, 2017 at 9:55
  • Load path/synaptics_drv.so And after that -- synaptics driver will be used for device "AlpsPS/2 DualPoint Touchpad" I haven't any information in a log about libinput...
    – Konstantin
    May 1, 2017 at 9:57

1 Answer 1

Reset to default
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Install libinput by

sudo apt install xserver-xorg-input-libinput

and reboot. It supports multitouch better. Tap-to click will be disabled by default, but it can be enabled.

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  • Thank you, Pilot6. I have installed xserver-xorg-input-libinput package, learn tutorial from many sources. But my touchpad have the same problem -- sometimes two finger tap work, but sometimes cursor only move after two finger tap... It's a pity :(( I believe , hardware is ok, bcof under win and mint all work correctly...
    – Konstantin
    May 1, 2017 at 12:00
  • This must be a kernel issue.
    – Pilot6
    May 1, 2017 at 12:04
  • Well, what do you recommend - should I update kernel or use another distro? Is it good (?) practise to update kernel in LTS?
    – Konstantin
    May 1, 2017 at 12:08
  • It is not a good to install unsupported kernels, but you can try to install 4.11 and test.
    – Pilot6
    May 1, 2017 at 12:09

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