I have installed the open-source amdgpu driver onto my antergos system, and after that, I noticed extreme screen artifacting following me everywhere except the current active window.
This only happens when using an X based dm.
Here are some pics:
My setup is:
CPU: Pentium G4400
Ram: G-Skill 8GBx2 DDR4 2133mhz sticks
GPU: Gygabyte Radeon R7 240 (OC version, 2gb of gddr5)
Motherboard: MSI H110M PRO-VDL
Monitor: LG Flatron 1942T - SF
I am using a VGA cable for connecting the gpu to the monitor
Output from glxinfo:
OpenGL renderer string: AMD Radeon HD 8500 series (AMD OLAND / DRM 3.18.0 / 220.127.116.11-ARCH, LLVM 5.0.0)