I have tried to use nvidia-340.102 with Kernel 3.13 in Kubuntu 14.04 32 bit and GeForce 8400. I did not get this working, even though I saw a successfully build dkms module.
It worked only using the xenial-hwe stack and kernel. We don’t want to update all our clients to xenial-hwe without need.
Should nvidia-340.102 and kernel 3.13 theoretically work? Is this combination supported by nvidia-340.102? Is there a list of supported kernels?