Intel/AMD Hybrid graphics Ubuntu 18.04

In my case (HP 15-N, Radeon 8670m), I had the same problem, but I fixed it. Earlier it was:

$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x64 cap: 0x9, Source Output, Sink Offload crtcs: 3 
outputs: 2 associated providers: 1 name:modesetting
Provider 1: id: 0x3f cap: 0x4, Source Offload crtcs: 0 outputs: 0 
associated providers: 1 name:HAINAN @ pci:0000:0a:00.0

$ lspci -k | grep -EA3 'VGA|3D|Display'
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT 
Integrated Graphics Controller (rev 09)
Subsystem: Hewlett-Packard Company Haswell-ULT Integrated Graphics 
Controller
Kernel driver in use: i915
Kernel modules: i915
--
0a:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Sun 
XT [Radeon HD 8670A/8670M/8690M / R5 M330 / M430] (rev ff)
Kernel driver in use: radeon
Kernel modules: radeon, amdgpu
      

After installing amdgru-pro to fix it, I thought it helped, but I was wrong. The reason is simple, amdgru-pro doesn't work for old Video cards on Unix systems. If you install it you can face same errors like me. (Sorry that I don't have a screenshot. There was a black screen with some text, which said that I hadn't installed drivers correctly.)

After reinstalling Ubuntu, I fixed the problem by following the steps below using listproviders:

$ xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x64 cap: 0x9, Source Output, Sink Offload crtcs: 3 
outputs: 2 associated providers: 1 name:modesetting
Provider 1: id: 0x3f cap: 0x4, Source Offload crtcs: 0 outputs: 0 
associated providers: 1 name:HAINAN @ pci:0000:0a:00.0

After that:

$ xrandr --setprovideroffloadsink 0x3f 0x64

Test of Steam showed results (e.g. cs go on minimal-medium ~60 +- fps),

But before calling some program which needed AMD Radeon, I closed it and wrote in terminal:

$ DRI_PRIME=1 steam     # or some program (e.g. openshot)

Also you can do this or check your mistake by link.

I have the exact same setup (Intel Latitude E5570 / Hybrid graphics, Intel/AMD). I have installed Ubuntu 18.04 very recently.

Here are my experiences:

Although I marked Install third-party software for graphics and Wi-Fi hardware and additional media formats during installation, the Additional Drivers tab in Software & Updates (to reach this type software-properties-gtk in a terminal) claims that no additional drivers are available. Did you experience the same? Maybe somebody knows why. Before installing any proprietary drivers I decided to test the vanilla installation before doing anything else.

lspci -k | grep -EA3 'VGA|Display'

gives me the following output

00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
    Subsystem: Dell HD Graphics 530
    Kernel driver in use: i915
    Kernel modules: i915
--
01:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Mars [Radeon HD 8670A/8670M/8750M] (rev 81)
    Subsystem: Dell Mars [Radeon HD 8670A/8670M/8750M]
    Kernel driver in use: radeon
    Kernel modules: radeon, amdgpu

I guess that last line about the Kernel module amdgpu means that the OpenSource drivers are installed (can anybody confirm this?). More information on AMD drivers for Ubuntu can be found here on the Ubuntu help wiki.

Aside from switcheroo there is another possibility to switch between GPUs using xrandr:

• Hybrid Graphics | Ubuntu help wiki
• PRIME | Arch wiki

Using xrandr (as stated in the second link) use the following command to show the providers:

xrandr --listproviders

My output was

Providers: number : 2
Provider 0: id: 0x6b cap: 0x9, Source Output, Sink Offload crtcs: 3 outputs: 7 associated providers: 1 name:modesetting
Provider 1: id: 0x41 cap: 0x6, Sink Output, Source Offload crtcs: 2 outputs: 0 associated providers: 1 name:OLAND @ pci:0000:01:00.0

To be able to render GPU-intensive applications by the more powerful discrete card use

xrandr --setprovideroffloadsink 1 0

Now you should be able to choose a GPU for your application. For example you can test this with a command (using glxinfo, sudo apt install mesa-utils) I found here on Ubuntu Forums:

DRI_PRIME=0 glxinfo | grep "OpenGL renderer"
DRI_PRIME=1 glxinfo | grep "OpenGL renderer"

So I have done a benchmarktest (using glmark2, sudo apt install glmark2) for both GPUs using the following commands:

DRI_PRIME=0 glmark2 --fullscreen
DRI_PRIME=1 glmark2 --fullscreen

The resulting score was:

• 507 for Intel integrated GPU
• 367 for AMD descrete GPU

This is strange, since I thought that AMD GPU should be more performant than the integrated Intel GPU. What are your results on this? Can you confirm this?

You might also test starting Steam on the discrete GPU using the stated xrandr commands.

Maybe I will also install the proprietary AMD GPU drivers (amdgpu-pro) and repeat the benchmarks. I hope this is helpful, especially the parts regarding the alternative way of switching GPUs.