debian 10 - Activate tap to click on touchpad?

Debian Stretch and Buster (updated)

Remove the xserver-xorg-input-synaptics package. (important)

# apt remove xserver-xorg-input-synaptics

Install xserver-xorg-input-libinput:

# apt install xserver-xorg-input-libinput

In most cases, make sure you have the xserver-xorg-input-libinput package installed, and not the xserver-xorg-input-synaptics package.

As root:

create /etc/X11/xorg.conf.d/

mkdir /etc/X11/xorg.conf.d

Create the 40-libinput.conf file:

echo 'Section "InputClass"
        Identifier "libinput touchpad catchall"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
        Option "Tapping" "on"
EndSection' > /etc/X11/xorg.conf.d/40-libinput.conf

restart your DM; e,g:

# systemctl restart lightdm

or

# systemctl restart gdm3

Debian wiki : Enable tapping on touchpad

Add the user to the sudo group

/sbin/usermod -aG sudo username

in debian10 /sbin is needed

debian 10 apt - The repository does not have a Release file

solution

deb [trusted=yes]

see last line

# deb cdrom:[Debian GNU/Linux 10.4.0 _Buster_ - Official amd64 xfce-CD Binary-1 20200509-10:26]/ buster main 


deb http://security.debian.org/debian-security/ buster/updates main
deb-src http://security.debian.org/debian-security/ buster/updates main

# buster-updates, previously known as 'volatile'
# A network mirror was not selected during install.  The following entries
# are provided as examples, but you should amend them as appropriate
# for your mirror of choice.

deb http://deb.debian.org/debian/ buster  contrib main    
deb-src http://deb.debian.org/debian/ buster main contrib    

# This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
# see the sources.list(5) manual.

deb [trusted=yes] file:///home/ayush/OS/apt/debian_10_files/ buster contrib main
# deb-src [trusted=yes] file:///home/ayush/OS/apt/debian_10_files/ buster contrib main

linux debian 10 buster issue - command usermod not found ?

root@toshayu:/home/ayush# /sbin/user

it is inside sbin