AMDGPU RX580 OpenCL

[Greg V]

On Sat, Jan 5, 2019 at 2:34 AM, Tomasz CEDRO <tomek at cedro.info> wrote:
> On Wed, Jan 2, 2019 at 8:01 AM Steve O'Hara-Smith wrote:
>>          Do you not get this in Xorg.0.log ?
>> 
>>  [    45.939] (EE) AIGLX error: dlopen of 
>> /usr/local/lib/dri/amdgpu_dri.so
>>  failed (Cannot open "/usr/local/lib/dri/amdgpu_dri.so")
>> 
>>          If not what did you do to prevent it ?
> 
> Hello Steve! I hope Greg's hints helped you out - its just matter of
> installing graphics/amdgpu and proper dri kernel driver - I am
> building/using latest ones from port tree.
> 
> Btw - most of the time AMDGPU does not produce the usable workstation
> setup - loading amdgpu from boot.loader does not work (cannot load
> firmware because / is not yet mounted) and loading it from rc.conf
> makes my screen unusable - this is why I am using SCFB for X11 for now
> and just play with AMDGPU from shell (also using SSH)..

If you're booting with UEFI, you should set  hw.syscons.disable=1  in 
loader.conf.
(And of course load from rc.conf, modern kms-drm drivers have never 
been loadable from the bootloader.)

https://github.com/FreeBSDDesktop/DEPRECATED-freebsd-base-graphics/issues/170

It's very usable, I'm running a Wayland compositor (Weston), with VAAPI 
and Vulkan and whatnot :)