Ubuntu: Select at boot time, from Grub, Nouveau or Nvidia driver


I have a laptop MSI GS60 6QE; CPU is Skylake I7-6700HQ and GPU NVIDIA GTX 970. I had installed Ubuntu 16.04 on it and is working quiet good. I've installed NVIDIA 364.19 driver from ppa.launchpad.net/graphics-drivers/ppa/ubuntu I'm using Prime to select the graphic card. I noticed that when I using this configuration, over the Nouveau driver, the battery life is very short (about 1h 30mins) If I using Nouveau the battery life is better (about 2:30 to 3 h). My question is that I can configure Ubuntu to select at boot time, from Grub, which driver to use NVIDIA or Nouveau?

Thank you in advance for any help.



You can use kernel parameters to blacklist the driver you don't want to use and force the other one.

modprobe.blacklist=nvidia systemd.setenv=GPUMOD=nouveau  

Plus a script to modify xorg config.

cat > /etc/X11/xorg.conf.d/01-nv.conf << EOF  Section "Device"    Identifier   "Device0"    Driver       "nouveau"  EndSection  EOF  

Switching nouveau and nvidia drivers using a single kernel and systemd

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