Your nvidia package is too old, Ubuntu 15.04 already have version 346 in repository and there is 349 in xorg-edgers ppa. Try to install 346 first, with 349 my system works fine.
Your nvidia package is too old, Ubuntu 15.04 already have version 346 in repository and there is 349 in xorg-edgers ppa.
Try to install 346 first, with 349 my system works fine.