I have this issue in 15.04 (Vivid). Installed Cuda-7.5 from Ubuntu repo and it breaks X (on top of nvidia-352). In my case, I can't even get to the login screen. Starting Ubuntu in recovery mode and selecting 'Resume Boot' does get me to the login screen, but login attempts throw me back to the same screen.
I managed to pinpoint the problem to the nvidia-modprobe package (require by CUDA), which breaks my graphics. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1268211 Title: Black screen after logging in, after installing Nvidia-CUDA To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1268211/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
