@Alberto: I did not understand your last suggestion. I had not installed the xubuntu-default-settings, so when I tried to remove that, I got an error message. I had previously tried removing the XFCE4 and XFCE4-goodies metapackages, then reinstalling them, but that didn't help.
I ended up reloading my original Lubuntu-13.10 Saucy installation from backup, then installed, in this order nvidia-319 nvidia-settings-319 rebooted nvidia-prime from the Saucy proposed repository via Synaptic (updated grub) rebooted xfce4 xfce4-goodies* rebooted logged into xfce session chose Use default configuration It worked. No error messages loading the xfce desktop. Now I can use either lubuntu sessions or xfce4 sessions, and nvidia-prime seems to be working (at least going by glxspheres64). I'm not sure why it worked this time - I was 100% sure it would fail. But it worked. (*I had tried the sudo update-alternatives --config lightdm-gtk-greeter- config-derivatives, but I didn't understand what you meant by that command exactly. I got an error message saying no alternatives available.) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1224098 Title: xserver wont start after nvidia-prime installation Status in “nvidia-prime” package in Ubuntu: Fix Released Status in “nvidia-prime” source package in Precise: Fix Committed Status in “nvidia-prime” source package in Saucy: Fix Committed Bug description: SRU request: [Impact] * As a result of this bug, the lightdm configuration file will always been overwritten. This is not desirabled or expected and causes serious problems on any *buntu system other than Ubuntu. [Test Case] * Enable the precise-proposed or the saucy-proposed repository and install nvidia-prime (0.4.2~hybrid0.0.1 in precise or 0.4.2~hybrid0.1 in saucy). * If the package doesn't overwrite the lightdm greeter in the lightdm.conf file, then the fix is correct. [Regression Potential] * The regression potential here should be zero, as we only replace two conditions ( "test -f" and "test ! -s") that can never be true at the same time, with the "test -s" condition which does exactly what we need - it checks that the file exists and has a size greater than zero - and reuse the existing file if this condition is satisfied. ---- I have done a fresh install of saucy, before the installation of nvidia-prime lightdm-gtk-greeter was set in lightdm.conf. During the installation of nvidia-prime the greeter ist changed to unity-greeter which causes a crash and no display after a reboot. When changing the greeter back to lightdm-gtk-greeter everything works fine. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: nvidia-prime 0.4 ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0 Uname: Linux 3.11.0-7-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.12.1-0ubuntu3 Architecture: amd64 Date: Wed Sep 11 22:11:06 2013 InstallationDate: Installed on 2013-09-11 (0 days ago) InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130902.1) MarkForUpload: True PackageArchitecture: all SourcePackage: nvidia-prime UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1224098/+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
