if after following the instructions at the fedora-nvidia-guide, you get an error message during driver installation that reads: ERROR: Unable to load the 'nvidia-drm' kernel module, there are a few things to check:
- does your kernel version match your kernel-devel version?:
uname -r && rpm -q kernel && rpm -q kernel-devel - does the version of gcc on your system match the version of gcc used to compile your kernel:
gcc --version && cat /proc/version
sync your versions to latest by running: sudo dnf install kernel kernel-devel gcc
if you use uefi and secure boot, you also need to sign the nvidia module:
# generate a new signing keypair:
openssl req -new -x509 -newkey rsa:4096 -keyout ~/.ssh/nvidia-module-private.key -outform DER -out ~/.ssh/nvidia-module-public.key -nodes -days 3650 -subj "/CN=nvidia-kernel-module"
# enroll the generated public key in the mok list (see: https://docs.fedoraproject.org/en-US/Fedora/26/html/System_Administrators_Guide/sect-enrolling-public-key-on-target-system.html)
sudo mokutil --import ~/.ssh/nvidia-module-public.key
rebootwhen the system reboots it will prompt for the password set in mokutil and enroll the signing key. after that you can reinstall the nvidia driver and sign the kernel module with your enrolled key:
sudo NVIDIA-Linux-x86_64-435.21.run --module-signing-secret-key=$HOME/.ssh/nvidia-module-private.key --module-signing-public-key=$HOME/.ssh/nvidia-module-public.key