Working through a minefield of information at the moment and need help.
I've got a Dell Latitude E5570 which is setup with Hybrid graphics, Intel/AMD as such:
$inxi -Fzx Graphics: Card-1: Intel HD Graphics 530 bus-ID: 00:02.0 Card-2: Advanced Micro Devices [AMD/ATI] Mars [Radeon HD 8670A/8670M/8750M] bus-ID: 01:00.0 Display Server: x11 (X.Org 1.19.6 ) drivers: i915,radeon Resolution: firstname.lastname@example.org OpenGL: renderer: Mesa DRI Intel HD Graphics 530 (Sk
I've tried playing with switcheroo, but this doesn't seem to work. https://www.dell.com/support/article/au/en/auchn1/sln298475/a-guide-to-hybrid-video-on-dell-pcs-with-an-ubuntu-operating-system?lang=en
Also, I've installed the proprietary drivers from AMD here: https://support.amd.com/en-us/kb-articles/Pages/Radeon-Software-for-Linux-18.20-Early-Preview-Release-Notes.aspx
This seemed to work, however when launching steam games I received an error about OpenGL incompatibility. In an attempt to fix this, I ended up with a boot loop and a very unstable system.
EDIT - this is how I ended up boot looping.... https://linuxconfig.org/how-to-install-the-latest-amd-radeon-drivers-on-ubuntu-18-04-bionic-beaver-linux
I've now completed a fresh install and everything is back to vanilla, no other poking - looking for advice.
Just for completeness, can you also test your Steam game, whether it also runs on 100 FPS on AMD using amdgpu driver?
I've done this and can confirm that the Steam game (Portal) will easily hit 100 FPS with both the radeon and amdpgu drivers - no appreciable difference - but much less headache using the radeon drivers shipped with Ubuntu rather than the proprietary amdgpu drivers.