Update on the iMac 2009 with #PopOS@system76 : sadly the Nvidia 9400M is not supported with the latest kernels.
Using a PPA, we can install a patched set of 340 series drivers (last supported for the GPU), but got artifacts and occasionally a freeze.
Reverted this and rolling with Nouveau. Just hope at some point we have opennvk and Nvidia just does the right thing and start supporting their gear on Linux.
