I have the same problem with my Futjitsu Lifebook AH-531/GFO on Kubuntu
14.04.
lspci | grep 'VGA'
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
01:00.0 VGA compatible controller: NVIDIA Corporation GF108M [GeForce GT 525M]
(rev a1)
dmesg | grep -E 'bbswitch|nvidia'
[ 3.047772] nvidia: module license 'NVIDIA' taints kernel.
[ 3.126575] nvidia: module verification failed: signature and/or required
key missing - tainting kernel
[ 3.132672] nvidia 0000:01:00.0: enabling device (0000 -> 0003)
[ 3.138900] [drm] Initialized nvidia-drm 0.0.0 20130102 for 0000:01:00.0 on
minor 1
[ 4.045734] bbswitch: version 0.7
[ 4.045749] bbswitch: Found integrated VGA device 0000:00:02.0:
\_SB_.PCI0.GFX0
[ 4.045756] bbswitch: Found discrete VGA device 0000:01:00.0:
\_SB_.PCI0.PEG0.PEGP
[ 4.045815] bbswitch: failed to evaluate \_SB_.PCI0.GFX0._DSM
{0xA0,0xA0,0x95,0x9D,0x60,0x00,0x48,0x4D,0xB3,0x4D,0x7E,0x5F,0xEA,0x12,0x9F,0xD4}
0x102 0x0 {0x00,0x00,0x00,0x00}: AE_NOT_FOUND
[ 4.045817] bbswitch: No suitable _DSM call found.
[ 14.057221] init: Failed to spawn nvidia-persistenced main process: unable
to execute: No such file or directory
** Attachment added: "dmidecode.log"
https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1310023/+attachment/4121328/+files/dmidecode.log
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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)
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https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1310023/+subscriptions
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