Ubuntu 18.04 and Radeon RX550.
When running amdgpu would get irregularly blank or one colour screen and then the system would freeze. Upgraded to the latest amdgpu-pro, screen no longer freezes but it does occasionally flicker and neither VLC nor Totem Movie Player play videos. I can stream videos (i.e. Netflix) OK. I dual boot and in Windows 7 everything works fine.
Any help greatly appreciated Michael
