KDE Neon is my prefered KDE based distro.
For the installation on my Thinkpad E15 Gen 2, I used the latest image (neon-user-20200910-0945 at that time).
The image is running a 5.4 kernel and the amdgpu is not correctly managed, so I needed to boot in safe graphics mode.
After installation I downloaded the latest stable kernel (5.8.8-050808-generic) from here with the following files
and installed the packages:
cd Downloads/
sudo dpkg -i *.deb
My laptop has a bug related to Fn keys not working without go to sleep mode (related to a BIOS problem see here https://www.virtualconfusion.net/thinkpad-e15-g2-and-linux/).
But current setup prevent my laptop to come out from sleep mode.
I needed to remove the nomodeset from the kernel options. This is not part of the default grub file in KDE Neon.
The nomodeset is added via the file /etc/default/grub.d/neon-installation-nomodeset.cfg
GRUB_CMDLINE_LINUX_DEFAULT="${GRUB_CMDLINE_LINUX_DEFAULT} nomodeset"
whether I remove the file or remove the nomodeset options.
I just simply renamed the file:
sudo mv /etc/default/grub.d/neon-installation-nomodeset.cfg /etc/default/grub.d/neon-installation-nomodeset.cfg.old
Then update the grub configuration:
sudo update-grub
After reboot I am able to put my computer in sleep mode and get out of it and the Fn keys are working
Thanks this was very useful in getting my E14 up and running
BIOS update to version 1.17 solves this problem.