That did the trick ... I tried several times to reinstall 12.04 and 13.04 with driver from nvidia or standard repo. Funny, the card get even identified as Titan.bollix47 wrote:On Ubuntu 13.04 I'm using nvidia-319 from xorg-edgers and my GTX 780 appears to be working well.
Finally I tried your suggestion with the alternative repo and it worked directly. Actually with that one I even will try again VMware and ESXi passthrough; I got similar messages there. Thanks for the tip !