I forget to mention I tried without and with installed xserver-xorg-input-synaptics package. The actual kernel is 5.4.0-52-generic what I got during first software update.
In the mean time I tried with the original kernel what the Ubuntu 20.04.1 installed (5.4.0-42-generic) an the left and right clicks works!!! Summary: The effected packages: - fwupd - newer kernel version 5.4.0.52 The working workaround: 1. install xserver-xorg-input-synaptics package -> sudo apt install xserver-xorg-input-synaptics -y 2. Masking the service fwupd using systemctl mask fwupd.service command 3. Set the 5.4.0-42 as default in grub: - sudo cp /etc/default/grub /etc/default/grub.bak - With an editor change the GRUB_DEFAULT value in /etc/default/grub to GRUB_DEFAULT="Advanced options for Ubuntu>Ubuntu, with Linux 5.4.0-42-generic" - sudo update-grub 4.sudo apt-mark hold linux-image-5.4.0-42-generic linux-headers-5.4.0-42-generic -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to libinput in Ubuntu. https://bugs.launchpad.net/bugs/1877655 Title: [Dell Venue 11 Pro 7140] Trackpad does not work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1877655/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
