Confirming that Dann Frazier's answer does make it possible to load the Nvidia drivers.
I upgraded to 23.04 (from 22.10) and got kernel 6.2.0-25. Tried all sorts of different ways to manually sign the Nvidia drivers but nothing worked; the Nvidia drivers would always fail to load. Here all the steps I took to fix this: # I removed all packages related to Nvidia as I wanted a clean slate sudo apt purge nvidia* # Installed the driver but also the pre-signed module as Dann Frazier suggested sudo apt install nvidia-driver-535 linux-modules-nvidia-535-generic # The previous command will install some packages for kernel 6.2.0-24 but you're still missing the modules extra package; install it now: sudo apt install linux-modules-extra-6.2.0-24-generic Now reboot and make sure you boot into the 6.2.0-24 kernel and the Nvidia drivers should now load. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-restricted-modules in Ubuntu. https://bugs.launchpad.net/bugs/1921536 Title: "modprobe: ERROR: could not insert 'nvidia': Key was rejected by service" due to binutils mismatch Status in linux package in Ubuntu: Confirmed Status in linux-restricted-modules package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-525 package in Ubuntu: Confirmed Status in nvidia-graphics-drivers-535 package in Ubuntu: Confirmed Bug description: If a user does not have the same version of binutils installed as the one used to produce the nvidia module signature, the module generated at postinst maybe unloadable: modprobe: ERROR: could not insert 'nvidia': Key was rejected by service I ran into this when I tried to install the hirsute kernel/nvidia driver on a focal system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1921536/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
