What drivers are you running. Should be the nvidia proprietary drivers to
use nvenc

On Thu, Mar 28, 2024, 9:11 PM Jim via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> Recently I had to reinstall Kubuntu on this machine.  I didn't have a
> problem until I tried to use Handbrake.  It will no longer use nvenc.
> I tried it using ffmpeg using the command line. First I tred ffmpeg -i
> input.mp4 -vcodec h264 output.mp4.  That worked, but failed when I
> tried  ffmpeg -i input.mp4 -vcodec h264_nvenc output.mp4 and displayed
> the error message below. Before I had to reinstall, I was able to use
> nvenc when encoding using h264 in Handbrake.  Any idea how I can fix
> this? Thanks
>
> [h264_nvenc @ 0x55dd91a7ae40] Cannot load libnvidia-encode.so.1
> [h264_nvenc @ 0x55dd91a7ae40] The minimum required Nvidia driver for
> nvenc is 520.56.06 or newer
> [vost#0:0/h264_nvenc @ 0x55dd91aae5c0] Error while opening encoder -
> maybe incorrect parameters such as bit_rate, rate, width or height.
> [vf#0:0 @ 0x55dd91a913c0] Error sending frames to consumers: Operation
> not permitted
> [vf#0:0 @ 0x55dd91a913c0] Task finished with error code: -1 (Operation
> not permitted)
> [vf#0:0 @ 0x55dd91a913c0] Terminating thread with return code -1
> (Operation not permitted)
> [vost#0:0/h264_nvenc @ 0x55dd91aae5c0] Could not open encoder before EOF
> [vost#0:0/h264_nvenc @ 0x55dd91aae5c0] Task finished with error code:
> -22 (Invalid argument)
> [vost#0:0/h264_nvenc @ 0x55dd91aae5c0] Terminating thread with return
> code -22 (Invalid argument)
> [out#0/mp4 @ 0x55dd91c55240] Nothing was written into output file,
> because at least one of its streams received no packets.
> frame=    0 fps=0.0 q=0.0 Lsize=       0KiB time=N/A bitrate=N/A speed=N/A
> [aac @ 0x55dd91bfa500] Qavg: 924.945
> Conversion failed!
>
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