How to unload nvidia driver after install latest driver?

Hi,

I want to run NVQual test with NVIDIA L4 GPU on RHEL8 and already installed latest version of NVIDIA provide driver : 560.35.03 (with CUDA 12.6).
After OS reboot, I have try to unload nvidia driver before install mods driver and run NVQual testkit.
But OS will auto load “nvidia_uvm” and “nvidia” driver after driver unload.
I also have add driver name to blacklist file, but still can not work.
So… can you give me any comment or suggestion?

NOTE: after nvidia drivers unload, dmesg has record some info.
[ 2050.179489] nvidia-uvm: Unloaded the UVM driver.
[ 2051.314993] nvidia-nvlink: Unregistered Nvlink Core, major device number 237
[ 2051.537279] nvidia-nvlink: Nvlink Core is being initialized, major device number 237
[ 2051.537284] NVRM: loading NVIDIA UNIX Open Kernel Module for x86_64 560.35.03 Release Build (dvs-builder@U16-I1-N07-12-3) Fri Aug 16 21:42:42 UTC 2024
[ 2051.640562] nvidia-uvm: Loaded the UVM driver, major device number 235.

Best Regards,
Jim Shi