I have a Dell Inspiron 5570 with a dedicated GPU AMD Radeon 530. I am running ubuntu mate 18.04.
inxi -G returns the following:
Graphics: Card-1: Intel UHD Graphics 620
Card-2: Advanced Micro Devices [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445]
Display Server: x11 (X.Org 1.20.1 )
drivers: modesetting,ati,amdgpu (unloaded: fbdev,vesa)
Resolution: [email protected]
OpenGL: renderer: Mesa DRI Intel UHD Graphics 620 (Kabylake GT2)
version: 4.5 Mesa 18.2.8
I am not sure I have the correct driver for the amd GPU. When I choose to use the specific gpu I get worst results compared to the intel one. I run glmark2 and I got:
DRI_PRIME=0 glmark2 --fullscreen
glmark2 2014.03+git20150611.fa71af2d
OpenGL Information
GL_VENDOR: Intel Open Source Technology Center
GL_RENDERER: Mesa DRI Intel(R) UHD Graphics 620 (Kabylake GT2)
GL_VERSION: 3.0 Mesa 18.2.8
[build] use-vbo=false: FPS: 759 FrameTime: 1.318 ms
glmark2 Score: **759**
DRI_PRIME=1 glmark2 --fullscreen
glmark2 2014.03+git20150611.fa71af2d
OpenGL Information
GL_VENDOR: X.Org
GL_RENDERER: AMD ICELAND (DRM 3.26.0, 4.18.0-20-generic, LLVM 7.0.0)
GL_VERSION: 4.4 (Compatibility Profile) Mesa 18.2.8
[build] use-vbo=false: FPS: 138 FrameTime: 7.246 ms
[build] use-vbo=true: FPS: 142 FrameTime: 7.042 ms
glmark2 Score: **140**
I would appreciate any suggestions on installing the correct driver for amd.
Thank you and excuse my long post.