Public bug reported:
I did a fresh install of 14.04 the day it was released. I use a XPS 15z laptop
form Dell with hybrid graphics (Intel HD 3000 (probably) and Nvidia Geforce GT
525M). Booting doesn't work out of the box, but by setting
GRUB_CMDLINE_LINUX_DEFAULT="acpi_backlight=vendor dell_laptop.backlight=0 quiet
splash"
in /etc/default/grub it works. acpi=off when installing, removed that from the
grub file when installed.
I expected that the Prime feature introduced in kernel 3.12 (kernel
3.13.x here) would let me switch between the Intel and Nvidia cards as i
like, instead of using Bumblebee, which doesn't work properly with
everything. I've installed and tried both the nvidia-331 and nvidia-304
drivers. Exactly the same result from both.
Attempting to switch to the Nvidia card in nvidia-settings (tried on almost all
of the drivers available, including 331.38) resulted in an error message, in a
new window, with no text.
prime-switch in terminal gives this output: Segmentation fault (core dumped)
Sudoing the process gives no output at all. No graphical performance boost
either, still the Intel card...
sudo prime-select nvidia gives this output:
Error: alternatives are not set up properly
Error: nvidia mode can't be enabled
I've also tried Bumblebee (not PPA) a few times, but it's also unable to
switch.
I'm able to use the Intel card temporary, but I would really like to be
able to use the full power of my computer...
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: nvidia-prime 0.6.2
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Apr 19 20:52:42 2014
InstallationDate: Installed on 2014-04-17 (1 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: nvidia-prime
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: nvidia-prime (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug nvidia-prime trusty
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https://bugs.launchpad.net/bugs/1310023
Title:
14.04: Nvidia Prime is unable to switch to the Nvidia card
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