- Was all kernel source, including the NVIDIA out of tree content, directly from the NVIDIA download for your L4T release (see “
head -n 1 /etc/nv_tegra_release”; this is what actually gets flashed)? - Does the module actually insert and show on “
lsmod”, or do errors or warnings you see result in failure to insert the module?
If the module actually inserts, then it has succeeded. So far as “module verification failed” is concerned, this just means it didn’t see the GPL license it wants. The mainline kernel developers would refuse to debug kernel failures for that case, but it isn’t an error. The real question is whether the module loads, and if you have tested it, whether it responds.