Linux configuration for Intel Graphics and NVIDIA CUDA on Lenovo T440p

reload_nvidia.sh

#!/bin/bash -e

sudo rmmod nvidia-uvm || true
sudo rmmod nvidia || true

# Adjust this if your driver version is different
sudo modprobe nvidia-340
sudo modprobe nvidia-340-uvm

# Adjust this to your CUDA installation
sudo /opt/cuda-6.0/samples/1_Utilities/deviceQuery/deviceQuery

System configuration

This is my current system configuration. I use the intel graphics for graphics, and just keep the NVidia card running for CUDA applications. Note that this setup does not give you 3D acceleration on the NVidia card!

Sometimes (only after suspend) I have to use the attached reload_nvidia.sh script because my CUDA applications complain about a "invalid device ordinal".

BIOS version: 1.17
Linux: Ubuntu 14.04 with kernel 3.17.0-031700rc4-generic
kernel cmdline: "acpi_osi=!Windows 2012"

nvidia driver 340 manually installed from the xorg-edgers PPA:
https://launchpad.net/~xorg-edgers/+archive/ubuntu/ppa

But this should work with older driver versions as well, I guess.

Remove all nvidia-prime, bumblebee, bbswitch packages.

On Ubuntu I also had to disable the gpu-manager, because it kept overwriting my xorg.conf:
echo "manual" | sudo tee /etc/init/gpu-manager.override

xorg.conf

Section "Monitor"
    Identifier             "Monitor0"
#    DisplaySize             309 173    # In millimeters
#    DisplaySize            464 260
#   DisplaySize             433 242
EndSection


Section "Device"
    Identifier             "Device0"
    Driver                 "intel" #Choose the driver used for this monitor
EndSection

Section "Screen"
    Identifier             "Screen0"  #Collapse Monitor and Device section to Screen section
    Device                 "Device0"
    Monitor                "Monitor0"
    DefaultDepth           24 #Choose the depth (16||24)
    SubSection             "Display"
        Depth              24
        Modes              "1920x1080_60" #Choose the resolution
    EndSubSection
EndSection