ubuntu 16.04 upgrade - two finger scroll not working

Question

Some months ago I did a Ubuntu 14.04 to 16.04 upgrade on my Dell Inspiron - 5000 series.

After performing the upgrade I noticed the two finger scroll is not working any more. The option in the settings menu is available and active but the two finger scroll does not work. The other mouse functions on the touchpad work though. Previous questions on this forum did not result in a solution.

Does somebody has some experience concerning this matter? I would love to use my two finger scroll again

thanks

output of xinput terminal command:

⎡ Virtual core pointer                      id=2    [master pointer  (3)]
⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)]
⎜   ↳ DLLC6AD:00 06CB:75BF Touchpad             id=11   [slave  pointer  (2)]
⎜   ↳ PS/2 Synaptics TouchPad                   id=13   [slave  pointer  (2)]
⎣ Virtual core keyboard                     id=3    [master keyboard (2)]
    ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]
    ↳ Power Button                              id=6    [slave  keyboard (3)]
    ↳ Video Bus                                 id=7    [slave  keyboard (3)]
    ↳ Power Button                              id=8    [slave  keyboard (3)]
    ↳ Sleep Button                              id=9    [slave  keyboard (3)]
    ↳ Integrated_Webcam_HD                      id=10   [slave  keyboard (3)]
    ↳ AT Translated Set 2 keyboard              id=12   [slave  keyboard (3)]
    ↳ Dell WMI hotkeys                          id=14   [slave  keyboard (3)]
    ↳ DELL Wireless hotkeys                     id=15   [slave  keyboard (3)]

Please [edit] your question and add output of xinput terminal command. — Pilot6, Oct 02 '16 at 21:49
I edited the output, hopefully it can be of some use, thanks! — Bramb, Oct 05 '16 at 17:59
fingers holding apart didn't work also solution on http://askubuntu.com/questions/592925/dell-inspiron-3551-unresponsive-touchpad don't seem to work — Bramb, Oct 06 '16 at 21:30

WinEunuuchs2Unix · Answer 1 · 2016-10-06T22:54:53.150

0

Although I use a wireless mouse, I also upgraded from 14.04 to 16.04 on a Dell Inspiron 17R 7720 SE and the two finger scrolling works perfectly (I just tried it). I'm on Kernel version 4.7.5 with Intel microcode updates though and never tested under Kernel 4.4. I just want to let you know it does work on Dell touchpad under 16.04.

There is a screen you need to go to in System Settings, Mouse & Touchpad to enable two-finger scrolling as this screen snapshot illustrates:

Edit 1 - Synaptics Driver Override

Having verified that Two finger scroll is checked and it still doesn't work, we need to dig deeper. Read wiki.debian.org/SynapticsTouchpad. Where it says:

If multitouch doesn't work for you, your hardware may not support it, but you can use the following options to emulate multitouch which allows most of the features to work. Try adding these lines to the Touchpad section:

Option          "EmulateTwoFingerMinZ"  "35"
Option          "EmulateTwoFingerMinW"  "8"

Follow the instructions in the link

edited Oct 06 '16 at 22:54

answered Oct 02 '16 at 23:31

WinEunuuchs2Unix

102,282

Hello, these settings have been checked and are all activated. However no 2 finger scroll. – Bramb Oct 05 '16 at 18:01
Maybe uncheck 'natural scrolling'? I can't test now because I'm on phone. – WinEunuuchs2Unix Oct 05 '16 at 19:37
unfortunately unchecking 'natural scrolling' wasn't the solution – Bramb Oct 06 '16 at 21:17
@Bramb I updated the answer with the next step to try. – WinEunuuchs2Unix Oct 06 '16 at 22:55

ubuntu 16.04 upgrade - two finger scroll not working

1 Answers1

Edit 1 - Synaptics Driver Override

Linked