Description: Ubuntu 14.04 LTS
Release: 14.04
Codename: trusty
➜ uname -a
Linux xps 3.13.0-27-generic #50-Ubuntu SMP Thu May 15 18:06:16 UTC 2014 x86_64
x86_64 x86_64 GNU/Linux
➜ dpkg -l | grep nvid
ii nvidia-331-updates 331.38-0ubuntu7 amd64
NVIDIA binary driver - version 331.38
ii nvidia-cg-dev:amd64 3.1.0013-1 amd64 Cg
Toolkit - GPU Shader Authoring Language (headers)
ii nvidia-cg-toolkit 3.1.0013-1 amd64 Cg
Toolkit - GPU Shader Authoring Language
ii nvidia-common 1:0.2.91.4 amd64
transitional package for ubuntu-drivers-common
ii nvidia-cuda-dev 5.5.22-3ubuntu1 amd64
NVIDIA CUDA development files
ii nvidia-cuda-doc 5.5.22-3ubuntu1 all
NVIDIA CUDA and OpenCL documentation
ii nvidia-cuda-gdb 5.5.22-3ubuntu1 amd64
NVIDIA CUDA GDB
ii nvidia-cuda-toolkit 5.5.22-3ubuntu1 amd64
NVIDIA CUDA toolkit
ii nvidia-libopencl1-331-updates 331.38-0ubuntu7 amd64
NVIDIA OpenCL Driver and ICD Loader library
ii nvidia-opencl-dev:amd64 5.5.22-3ubuntu1 amd64
NVIDIA OpenCL development files
rc nvidia-opencl-icd-304 304.117-0ubuntu1 amd64
NVIDIA OpenCL ICD
rc nvidia-opencl-icd-331 331.38-0ubuntu6 amd64
NVIDIA OpenCL ICD
ii nvidia-opencl-icd-331-updates 331.38-0ubuntu7 amd64
NVIDIA OpenCL ICD
ii nvidia-prime 0.6.2 amd64 Tools
to enable NVIDIA's Prime
ii nvidia-profiler 5.5.22-3ubuntu1 amd64
NVIDIA Profiler for CUDA and OpenCL
ii nvidia-settings 331.38-0ubuntu0.0.1~xedgers~precise1
amd64 Tool for configuring the NVIDIA graphics driver
ii nvidia-visual-profiler 5.5.22-3ubuntu1 amd64
NVIDIA Visual Profiler
--
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/1310023
Title:
14.04: Nvidia Prime is unable to switch to the Nvidia card
Status in “nvidia-prime” package in Ubuntu:
Confirmed
Bug description:
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)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1310023/+subscriptions
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