Same problem. Like in Martinas' story everything worked great and I did nothing special, but yesterday after tring 'prime-select nvidia' I got a black login screen. Tried reinstalling drivers and all other stuff like that, with no luck. I just noticed that then I've got this black login screen I can suspend my laptop (by closing it) and after restoring sometimes - not always - I've got a normal unity greeter. It's not a solution, not even a real workaround. Anyway this bug sucks, aspecially because it just suddenly appered without any good reason. :/ Just fix it!
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-331 in Ubuntu. https://bugs.launchpad.net/bugs/1362848 Title: ubuntu 14.04 after install nvidia binary driver 331.89 black screen and freeze Status in nvidia-graphics-drivers-331 package in Ubuntu: Confirmed Bug description: I'm using Ubuntu 14.04 64bit, after install nvidia binary driver 331.89 from Additional Drivers application then reboot, it shows black screen, no login window, I even can't use ctrl+alt+F2 to switch to text mode, then I reboot and go to recovery mode, use 'prime-select intel' to switch to intel GPU and reboot, everything is fine, but as soon as I switch to nvidia GPU, still same issue. OS: Ubuntu 14.04 64bit Laptop: HP ENVY 15t Nvidia GeForce GT 740M + Intel HD 4600 Desktop: Unity Kernel: 3.13.0 CPU: Intel® Core™ i7-4700MQ Thanks! To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1362848/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp