Log is attached; Kernels 3.11.0-20-generic and 3.13.0-24 are both affected with this "black screen"-error in KDE.
It seems that KDE without effects works and Ubuntu/Unity with effects too. Other OpenGL apps too. ** Attachment added: "nvidia 331 after logging-in to KDE; black screen" https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1294163/+attachment/4085140/+files/nvidia-bug-report.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1294163 Title: Please update precise nvidia drivers to support 3.13 trusty backport kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1294163/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs