BTW:

I'm using these drivers:
https://www.amd.com/en/support/graphics/amd-radeon-r9-series/amd-radeon-r9-200-series/amd-radeon-r9-280x


but still get:
2019-05-22 13:01:02] NOT using the recommended drivers: Adrenalin 18.6.1 or Adrenalin 2019