Hello, I have similar issues on a Toshiba Satellite notebook running Trusty 14.04 x64 and a Nvidia 540M GPU (Optimus with another on-board Intel HD).
Using 331.38 or 331.38 updates causes a freeze at the end of the splash screen shown during reboot. The Unity Greeter is never shown and the only way to regain control is to revert to console, purge all nvidia packages and use the Nouveau driver. There is nothing out of ordinary in Xorg.log. It seems to load the driver. Last lines in the log are: [ 40.403] reporting 5 8 7 53 [ 40.809] reporting 5 8 7 53 [ 41.320] reporting 5 8 7 53 -- 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/1310551 Title: NVIDIA proprietary driver 331.38 from package nvidia-331 on Xubuntu 14.04 causes display to hang Status in “nvidia-graphics-drivers-331” package in Ubuntu: Confirmed Bug description: On 14.04 I am getting an issue on my Thinkpad T520 where running the "proprietary,tested" 331.38 driver causes my display to hang. It seems to stay that way until I switch to tty6 with ctrl+alt+f6 and then back to tty7 which has the display, this causes it to un-hang. This then happens back and forth. I am not sure but it might be triggered by clicking things, opening windows and such. The problem disappears when switching back to the open source driver. Should I try an even newer driver from nvidia, or is there any more information you need for troubleshooting? ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: nvidia-331 331.38-0ubuntu7 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 CurrentDesktop: XFCE Date: Mon Apr 21 12:29:36 2014 InstallationDate: Installed on 2014-03-18 (33 days ago) InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140318) SourcePackage: nvidia-graphics-drivers-331 UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.modprobe.d.nvidia.331.hybrid.conf: [deleted] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1310551/+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
