When capturing entire screen there is some glitches.
5.4.0-62-generic
NVIDIA GeForce GTX 1660 SUPER
nvidia-bug-report.log.gz (261.4 KB)
I havent got time for indepth help.
Your bios needs to be updated.
Most of your uefi bios settings are incorrect. csm off, memory, graphics memory support and more.
you need to be on kernel 5.10.9
You need to be on nvidia 460 after killing desktop and all gl processes and doing a full purge, full clean, full config clean.important.
Theres a mountain of changes to make.
Read your Mboard manual and the nvidia 460 manual/ release notes…
Repectfully your not even close to a correct set up.
and your missing glnvd libraries from your current broken sub par install.
Sorry I dont have longer.
Seriously read the manuals. It will upgrade your nVidia linux experience x1000.
good luck