Also I am facing a problem after updating the alpha version (which worked OK) to beta version of Lubuntu 14.10 I no longer could get the desktop interface, only a blank screen appeared after a few seconds of showing "Lubuntu 14.10" in the centre of the screen. Reinstalling Lubuntu14.10 beta on the same partition - after formatting - resulted in the same problem. The initial GUI after reinstalling 14.10 beta appeared in the normal way, but after changing the graphic driver to nvdia-304 and update/upgrade the Lubuntu GUI has failed to appear again.
>From the blank screen after booting, alt-F2 shows the option to login in >terminal mode. Following errors are shown upon login: [ 154.944358] systemd-logind[908] Failed to start unit user1000.service: Unknown unit: user@1000.service [ 154.944432] systemd-logind[908] Failed to start unit user1000.service: Unknown unit: user@1000.service The command startx also failed to provide the GUI (see attachment fout.txt) ** Attachment added: "fout.txt" https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1363408/+attachment/4191673/+files/fout.txt -- 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/1363408 Title: nvidia proprietary drivers are broken Status in “nvidia-graphics-drivers-304” package in Ubuntu: New Status in “nvidia-graphics-drivers-331” package in Ubuntu: Incomplete Bug description: I upgrade Kubuntu 14.04 to 14.10 and noticed that all desktop effects became slow. In my dmesg I have these lines [ 17.039854] init: Failed to spawn nvidia-persistenced main process: unable to execute: No such file or directory [ 17.040940] init: nvidia-prime main process (2139) terminated with status 1 And it seems that something wrong with path/directories where scripts perform search for nvidia binaries. For example, in /etc/init/nvidia-persistenced.conf we can find this: exec /usr/bin/nvidia-persistenced --user nvidia-persistenced but, I really have not nvidia-persistenced binary in /usr/bin/, it is in /usr/lib/nvidia-331/bin/ Also, after installing nvidia-331 I have not nvidia-xconfig command in shell, but I have /usr/lib/nvidia-331/bin/nvidia-xconfig ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: nvidia-331 331.89-0ubuntu2 ProcVersionSignature: Ubuntu 3.16.0-11.16-generic 3.16.1 Uname: Linux 3.16.0-11-generic x86_64 ApportVersion: 2.14.7-0ubuntu1 Architecture: amd64 CurrentDesktop: KDE Date: Sat Aug 30 15:53:02 2014 InstallationDate: Installed on 2014-07-05 (55 days ago) InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140416.1) SourcePackage: nvidia-graphics-drivers-331 UpgradeStatus: Upgraded to utopic on 2014-08-30 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-304/+bug/1363408/+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