(In reply to Jason Playne from comment #4)
> (In reply to Jason Playne from comment #2)
> > This is has just started effecting me too. Playing "Hellblade: Senuas
> > Sacrifice" on steam (so steam play / radv / dxvk)
> > 
> > mesa via pkppa
> > 
> > kernel 5.1.15-050115-generic (ubuntu kernel ppa)
> > libdrm-amdgpu1:amd64                2.4.98+git1906260630.4
> > mesa-vulkan-drivers:amd64           19.2~git1906240730.3b6
> > 
> > this wasn't happening 2 days ago, now it happens consistantly
> 
> Sorry, its via the oibaf ppa.

changing over to the padoka-stable ppa the problem still exists...