issue about nvenc

[flaxinger]

Hi Sung-hoon
Our latest components built with nvidia video codec sdk 12.1 which by itself has following requirements for driver version:
Windows: Driver version 531.61 or higher
Linux: Driver version 530.41.03 or higher
Your current driver looks quite old.
please try to install a latest Nvidia driver this should to help.

I had the same problem, but I did upgrade my nvidia-driver to 530.41.03 but I got this error:
"
Trying to load demo_enc_hevc library
Can't load library nvcuvid: error 0x0:
HEVC validation error E0025: Layer 0 (Main): Unable to use hardware acceleration type 2, mode 0 due to unsupported hardware.
    Last message repeated 30 times
[omx_enc_hevc @ 0x55d3c6720a80] OMX error 0x8000100a
[omx_enc_hevc @ 0x55d3c6720a80] Component cannot allocate buffers
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!
"
The command I used is:
"
./ffmpeg -f v4l2 -r 30 -s 1920x1080 -i /dev/video0 -pix_fmt yuv420p -b:v 4000k -c:v omx_enc_hevc -omx_core libomxil_core.so -omx_name OMX.MainConcept.enc_hevc.video -omx_param "force_omx_param=0:acc_type=nvenc" /app/real-time_encoding.hevc -y"
"

Can you tell me what did wrong. And how to fix it?