with today blender version, August 05, 23:12:10 - cdeda1fa6cea
Development124.41MB

but it was working great, on the same hardware .. it start just from 2 to 3 weeks ago

sorry, yes it's a duplicate of the same bug, T67199, i thought that when i wrote the issue, i did not make my bug case very clear so i thought that the video will make it very easy to see and to understand .. also, you don't have to download it, just watch it from the video link above at the blender server

no .. am updating and saving my blend files with every blender new copy

i only use Linux and will never use other than Linux
i download blender 2.8 every day or when the new release uploaded from the official blender website
5 days ago from this message, i did not have any kind of any problem with blender on Linux
i use the open source AMD drivers from mesa3d .. it's called mesa open source drivers "radeon"
i installed all the mesa drivers from the synaptic package manager
and [[now]] "even with eevee scratching colors when moving or rotating" i have no problem with cycles what so ever, so saying that my laptop is too old, well, yes my AMD laptop is old and so powerful and very compatible with Linux