Debian 10.5 on GNOME two-finger scrolling keeps disabling.

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Debian 10.5 on GNOME two-finger scrolling keeps disabling.

Postby adowson » 2020-08-19 16:50

I’m having a weird issue with GNOME where I have to keep re-enabling two-finger scrolling. As a temporary resolution I can run “sudo modprobe -r psmouse && sudo modprobe psmouse”. However, once the laptop suspends/resumes, two-finger scrolling completely stops working until I run the previous command again. Sometimes two-finger scrolling does work, but it requires heavy pressure on the trackpad unless I run the above modprobe commands.

To enable two-finger scrolling through the GUI I have to click on the switch twice before it enables, all other settings switches require one click which is odd. As soon as I switch out of that setting window and return, two-finger scrolling is disabled. No amount of re-enabling will keep it permanantly enabled.

My next step was to try manually re-enable it by running “gsettings set org.gnome.desktop.peripherals.touchpad two-finger-scrolling-enabled true” which has no effect and two-finger scrolling still appears as disabled in the GUI.

I have also tried modifying “/usr/share/X11/xorg.conf.d/40-libinput.conf” by adding “Option "ScrollMethod" "twofinger"” but even after a reboot this doesn’t change anything. See:

Code: Select all
Section "InputClass"
        Identifier "libinput touchpad catchall"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
        Option "Tapping" "On"
        Option "ScrollMethod" "twofinger"
EndSection


I’m stumped? I’m guessing that this is a problem with GNOME since I’ve seen some mention of similar-ish issues online but none of their solutions have worked for me. Any ideas? Device is a Thinkpad x250.
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Re: Debian 10.5 on GNOME two-finger scrolling keeps disablin

Postby Head_on_a_Stick » 2020-08-19 17:19

adowson wrote:I’m guessing that this is a problem with GNOME since I’ve seen some mention of similar-ish issues online but none of their solutions have worked for me

I'm guessing this is a problem with the user since I'm running Debian 10.5 with GNOME and two-finger scrolling is maintained between reboots for me.

Please post the output of
Code: Select all
apt policy

And please also list all of these mysterious "solutions" that you have tried so that you don't waste the time of anybody who tries to help you.
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