Morning, just upgraded to 6.10.2 and my issue is back again, I repeated the steps I followed previously to get it working however to negative results.
I have just tried your suggested steps above, results as follows:
/tmp/nvdrv# mkdir -p /tmp/nvdrv && cd /tmp/nvdrv
wget https://github.com/ich777/unraid-nvidia-driver/releases/download/5.15.40-Unraid/nvidia-515.43.04-5.15.40-Unraid-1.txz
installpkg nvidia-515.43.04-5.15.40-Unraid-1.txz
depmod -a
modprobe nvidia
rm -rf /tmp/nvdrv
nvidia-smi
--2022-05-28 10:18:06-- https://github.com/ich777/unraid-nvidia-driver/releases/download/5.15.40-Unraid/nvidia-515.43.04-5.15.40-Unraid-1.txz
Resolving github.com (github.com)... 140.82.121.3
Connecting to github.com (github.com)|140.82.121.3|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://objects.githubusercontent.com/github-production-release-asset-2e65be/306724515/91c671a8-ea29-453f-8603-2b55d8950db6?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20220528%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20220528T091807Z&X-Amz-Expires=300&X-Amz-Signature=af4ced2956ac30529332c4a4049c19707e39ae3bc79c3d5116b925b9b047b4cf&X-Amz-SignedHeaders=host&actor_id=0&key_id=0&repo_id=306724515&response-content-disposition=attachment%3B filename%3Dnvidia-515.43.04-5.15.40-Unraid-1.txz&response-content-type=application%2Foctet-stream [following]
--2022-05-28 10:18:07-- https://objects.githubusercontent.com/github-production-release-asset-2e65be/306724515/91c671a8-ea29-453f-8603-2b55d8950db6?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20220528%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20220528T091807Z&X-Amz-Expires=300&X-Amz-Signature=af4ced2956ac30529332c4a4049c19707e39ae3bc79c3d5116b925b9b047b4cf&X-Amz-SignedHeaders=host&actor_id=0&key_id=0&repo_id=306724515&response-content-disposition=attachment%3B filename%3Dnvidia-515.43.04-5.15.40-Unraid-1.txz&response-content-type=application%2Foctet-stream
Resolving objects.githubusercontent.com (objects.githubusercontent.com)... 185.199.109.133, 185.199.111.133, 185.199.108.133, ...
Connecting to objects.githubusercontent.com (objects.githubusercontent.com)|185.199.109.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 257129976 (245M) [application/octet-stream]
Saving to: ‘nvidia-515.43.04-5.15.40-Unraid-1.txz’
nvidia-515.43.04-5.15.40-Unraid-1.txz 100%[========================================================================================================================================>] 245.22M 63.6MB/s in 3.9s
2022-05-28 10:18:11 (62.7 MB/s) - ‘nvidia-515.43.04-5.15.40-Unraid-1.txz’ saved [257129976/257129976]
Verifying package nvidia-515.43.04-5.15.40-Unraid-1.txz.
Installing package nvidia-515.43.04-5.15.40-Unraid-1.txz:
PACKAGE DESCRIPTION:
Package nvidia-515.43.04-5.15.40-Unraid-1.txz installed.
modprobe: FATAL: Module nvidia not found in directory /lib/modules/5.15.43-Unraid
NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.