Same problem here. When the nvidia GPU is prime-selected, I'm getting a black screen on startup, though Ubuntu booted and I can hear it working when I adjust sound volume with the keyboard. When intel GPU prime-selected, everything works fine. Like others who posted here, for me the GPU switching function worked before end of January, when after some updates (I really don't know which ones, I didn't follow) this error occured and keeps persisting. I tryed the solutions described on the posts #15 and #18 but they didn't work for me. Additionally I get an error message at startup: "System program problem detected. Do you want to report the problem now?". When I select "Report problem...", it shows a screen where I can check error details and it says "ExecutablePath /usr/bin/Xorg". Please keep this thread alive, we need a solution.
OS: Ubuntu 14.04.1 LTS 64bit Laptop: Acer E5-571G GPU: NVIDIA GeForce 840M and Intel HD 4400 Kernel: 3.13.0-45-generic CPU: Intel Core i7-4510U Regard arhiivs -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1362848 Title: ubuntu 14.04 after install nvidia binary driver 331.89 black screen and freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1362848/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
