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NVIDIA GPU is always on, how do I change its behavior to run only when specifically asked?

asked 2018-08-19 05:19:17 -0500

quexth gravatar image


I am using a Dell Inspiron 15 7567 laptop with an Intel 7700HQ cpu and a 1050Ti gpu and I have an (almost) clean install of Fedora 28. I have been having hardware issues with Linux for the entire time (previously used Ubuntu) I used it and newer kernels made it worse.

My problem is that the NVIDIA gpu is always on and it significantly reduces battery life and causes heating. I would like to use the integrated graphics all the time and only use the NVIDIA gpu when I specifically turn it on, preferably without rebooting. I had to disable the dGPU entirely before and I am hoping for a better solution.

I have read that the new nouveau drivers handle Optimus laptops to switch the load between integrated graphics and dGPU and I guess it is somewhat working because my estimated time remaining significantly changed while I was writing this post (currently only a single instance of Firefox and Terminal is running). Even then using Win10 I can get battery life longer than 6 hours and in Linux it seems that I can get 4 hours tops without disabling the dGPU.

While searching for a solution I read that people were enabling the dGPU on a process basis via the command line and that is the best case solution I am hoping for.

Running some commands I found returns the following:

glxinfo | grep "OpenGL renderer"
OpenGL renderer string: llvmpipe (LLVM 6.0, 256 bits)

lspci | grep 'VGA'
00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Ti Mobile] (rev a1)

xrandr --listproviders
Providers: number : 0

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary 1920x1080+0+0 0mm x 0mm
1920x1080 77.00*

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answered 2018-08-20 05:13:02 -0500

jamessmith1403 gravatar image

updated 2018-08-20 12:30:32 -0500

Here is the answer -> link. I had the same problem, and it was the solution. Make sure to read the comments, there you can find some additional information.

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Asked: 2018-08-19 05:19:17 -0500

Seen: 626 times

Last updated: Aug 20 '18