Arch Linux

Paludan

Member

Registered: 2014-10-14

Posts: 15

GPU not in use

Hi so I've been trying to get Arch working on my Y510p machine. It has 2 GPUs but since SLI isn't really a thing on linux I can only use 1 GPU.

I came here from Debian, and there the GPU worked out of the box, installed the drivers and boom epic performance. However on Arch this is not the case. I've followed the guide on how to install Nvidia drivers correctly, and my machine seems to recognize that they exist, but they're not being used.

I've tried bumblebee, but whenever I used optirun my screen would turn into a light spectrum, causing it to be inoperatable. Anyway so I've uninstalled Bumblebee again and I'm currently using the following drivers:

[clonix@Clonix ~]$ pacman -Qs nvidia 
local/lib32-nvidia-utils 346.59-1
    NVIDIA drivers utilities (32-bit)
local/libcl 1.1-4
    OpenCL library and ICD loader from NVIDIA
local/nvidia 346.59-1
    NVIDIA drivers for linux
local/nvidia-utils 346.59-1
    NVIDIA drivers utilities

And this is the output of lspci | grep -i --color 'vga':

01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 750M] (rev a1)

I tried lspci | grep -i --color 'vga|3d|2d' but it gave no output. Furthermore, I've tried running a few applications that need 3d rendering in order to run, and I was presented with a big fat error message telling me:

No card selector available for card vendor 0000 (using GL_RENDERER "Gallium 0.4 on llvmpipe (LLVM 3.6, 256 bits)"). 

and a popup box saying no GPU didn't support 3d rendering.

Bottomline, it's not working and I'd appreciate any help given since I cannot find a solution myself.

Regards, Paludan

Paludan

Member

Registered: 2014-10-14

Posts: 15

Re: GPU not in use

I tried lspci | grep -E "VGA|3D" and got this:

[clonix@Clonix ~]$ lspci | grep -E "VGA|3D"
01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 750M] (rev a1)
07:00.0 3D controller: NVIDIA Corporation GK107M [GeForce GT 750M] (rev a1)

dragonn

Member

Registered: 2012-05-04

Posts: 65

Re: GPU not in use

You need to get bumblebee working because this is the only way to get dGPU working since the Nvidia GPU-s are not physical connected to the screen, so you need to passthrough the output of nvidia GPU-s to the integrated GPU to display it - and this it what bumblebee does and the same way it works on Windows too. Eventuality you can use this way https://wiki.archlinux.org/index.php/NVIDIA_Optimus but this will render the entire desktop on Nvidia GPU and  passthrough it through the iGPU.

Paludan

Member

Registered: 2014-10-14

Posts: 15

Re: GPU not in use

You need to get bumblebee working because this is the only way to get dGPU working since the Nvidia GPU-s are not physical connected to the screen, so you need to passthrough the output of nvidia GPU-s to the integrated GPU to display it - and this it what bumblebee does and the same way it works on Windows too. Eventuality you can use this way https://wiki.archlinux.org/index.php/NVIDIA_Optimus but this will render the entire desktop on Nvidia GPU and  passthrough it through the iGPU.

I tried using bumblebee but it didn't seem to function corrently. You said "but this will render the entire desktop on Nvidia GPU and  passthrough it through the iGPU", what consequences does this have? Would you mind helping me setting bumblebee up?