nvidia-prime prevents 0.3 freya from booting

[eleman]

I did a clean install of the current (20140810) freya 0.3 beta 1 on my Dell XPS15 L502x laptop (Sandy Bridge Core i5 w/HD graphics and Nvidia GT540M 2GB; optimus enabled) and after installing the nvidia-331-updates and nvidia-prime package to switch between the GPUs, the system asks for my password after a reboot instead of showing the desktop.

When I type it in manually, it blinks a couple times, like it is trying to start the x server, but then gets back to the login page. The combination was working fine with Ubuntu 14.04.1 LTS.

I removed the packages via console and installed nvidia-current and the bumblebee packages, which seem to work fine for now.

ProblemType: Bug
DistroRelease: elementary OS 0.3
Package: elementary-desktop 1.349+393~ubuntu0.3.1 [origin: LP-PPA-elementary-os-daily]
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.3
Architecture: amd64
CrashDB: elementary_meta
CurrentDesktop: Pantheon
Date: Tue Aug 12 16:55:49 2014
InstallationDate: Installed on 2014-08-11 (0 days ago)
InstallationMedia: elementary OS 0.3 "Freya" - Daily amd64 (20140810)
ProcEnviron:
 LANGUAGE=de_DE
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: elementary-meta
SuspiciousXErrors:

ThirdParty: True
UpgradeStatus: No upgrade log present (probably fresh install)

[Rodney (rod-dowdall)]

After installing nvidia-prime, and before rebooting I ran:

sudo prime-select intel

and this problem went away for me.

I purged all bumblebee, nvidia, primus packages. I ran auto remove and did a dpkg -l | grep nvidia to make sure that no nvidia packages were installed. I then rebooted my box. After that I installed:

nvidia-prime nvidia-331

waited for the install to finish, and then I ran

sudo prime-select intel

It told me that it was updating alternatives. I then rebooted and the problem went away.