It's not just Kubuntu. I'm on Ubuntu 13.04 64bit with same graphics card (Geforce GT 430) and have extactly the same problem.
It worked fine after initial upgrade to 13.04 from 12.10 but with the advent of Kernel 3.8.22, nVidia drivers fail to load. Using grub to load 3.8.21 kernel works perfectly. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers-313-updates in Ubuntu. https://bugs.launchpad.net/bugs/1182211 Title: Nvidia module fails to load on Kubuntu 13.04 Raring Ringtail To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-313-updates/+bug/1182211/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp