Either you run sudo apt install dkms or sudo dkms status. The first command installs the Dynamic Kernel Module Support Framework, short DKMS, the second one uses this to display information about kernel modules.
The command you issue is incorrect, because it assumed you want to install dkms and status where status is no package, but an option you can use when issuing commands related to dkms.
Reading this Linuxmint forum Q&A: https://forums.linuxmint.com/viewtopic.php?t=121930
Plus your inxi -Fxz specs, list the Nvidia card by itself, and only requires the Nvidia driver.
Open the Driver Manager in settings and click on the recommended Nvidia 390 driver, update cache if required and then reboot your laptop. If I remember correctly the Driver Manager wasn’t available when I last looked at KDE.
Or
sudo ubuntu-drivers devices
$ ubuntu-drivers devices
== /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0 ==
modalias : pci:v000010DEd00001180sv00001458sd0000353Cbc03sc00i00
vendor : NVIDIA Corporation
model : GP106 [GeForce GTX 1060 6GB]
driver : nvidia-304 - distro non-free
driver : nvidia-340 - distro non-free
driver : nvidia-390 - distro non-free recommended
driver : xserver-xorg-video-nouveau - distro free builtin
== cpu-microcode.py ==
driver : intel-microcode - distro free
sudo apt install nvidia-390
Once installed, update cache if required and reboot laptop. Hopefully this will correct your current issues.
Done and this is the result:
Reading package lists… Done
Building dependency tree
Reading state information… Done
Package nvidia-390 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
libnvidia-gl-390 nvidia-kernel-source-390:i386 nvidia-headless-no-dkms-390:i386 libnvidia-gl-390:i386 nvidia-kernel-source-390 nvidia-headless-no-dkms-390
E: Package ‘nvidia-390’ has no installation candidate
Advice???
Yesterdays post No 15, I noticed dkms were removed, from your print out. Can I assume this was from your terminal feed whilst removing Cheese and Vokoscreen.?
Really, that should not have removed or touched the DKMS and Nvidia drivers.
Out of curiosity, how did Ubuntu perform with your graphics card, apart from the desktop, it is the same.
If this procedure does not fix your issues, you will have to consider a fresh install
Reinstall Kubuntu
Fix broken packages
Reboot laptop
Check file systems
Now try to install Nvidia drivers
