Arch Linux

drakeerv

Member

Registered: 2022-04-19

Posts: 4

[SOLVED] OpenGL only sees integrated graphics and not the AMD GPU.

I have been trying to fix this problem for like a week now by repeating this wiki. This is my CPU/GPU setup:

CPU: Intel i7-4810MQ (8) @ 3.800GHz 
GPU: Intel 4th Gen Core Processor 
GPU: AMD ATI Radeon HD 8790M 

I have figured out that my GPU is a Southern Islands with GCN which means it should work with AMDGPU but when I look at what renderer opengl is using it says:

Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Intel (0x8086)
    Device: Mesa Intel(R) HD Graphics 4600 (HSW GT2) (0x416)
    Version: 22.0.1
    Accelerated: yes
    Video memory: 1536MB
    Unified memory: yes
    Preferred profile: core (0x1)
    Max core profile version: 4.5
    Max compat profile version: 4.5
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 3.2
OpenGL vendor string: Intel
OpenGL renderer string: Mesa Intel(R) HD Graphics 4600 (HSW GT2)

And finally when I run lspci I get:

01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Mars XTX [Radeon HD 8790M]
	Subsystem: Dell Device 05be
	Kernel driver in use: amdgpu
	Kernel modules: radeon, amdgpu

I really hope I can get this fixed so I can get some more GPU power.

(As a side note, is there any way to make it switch the renderer based on the battery because this is a laptop and the AMD GPU sucks power)

Thanks,
    Drake

Last edited by drakeerv (2022-04-19 20:19:46)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,104

Re: [SOLVED] OpenGL only sees integrated graphics and not the AMD GPU.

Yes that's how PRIME works. Prepend commands you want to run on the dedicated GPU with DRI_PRIME=1, i.e.

DRI_PRIME=1 glxinfo -B

read https://wiki.archlinux.org/title/PRIME for more information.

Last edited by V1del (2022-04-19 06:30:08)

drakeerv

Member

Registered: 2022-04-19

Posts: 4

Re: [SOLVED] OpenGL only sees integrated graphics and not the AMD GPU.

Thanks! That solved it!