A question about graphics subsystems under FreeBSD

[Pete Wright]

On 12/28/18 12:36 PM, Kevin Oberman wrote:
> On Mon, Dec 24, 2018 at 6:20 AM Greg V <greg at unrelenting.technology> wrote:
>
>>
>> On Mon, Dec 24, 2018 at 2:41 AM, Manish Jain <jude.obscure at yandex.com>
>> wrote:
>>> Hi,
>>>
>>> I have a port mkdesktop which simplifies the task of FreeBSD desktop
>>> configuration. I was looking to enhance the port in its capabilities
>>> and it would help me if I could know the various pkg's and kld's
>>> needed by the various chipsets.
>>>
>>> As per my (incomplete) knowledge, the following are usually needed:
>>>
>>> Chipset   | <Packages>                 | <Modules>
>>>
>>> AMD GPU   | drm-kmod:xf86-video-amdgpu |
>>> Radeon    | drm-kmod:xf86-video-ati    | radeonkms.ko**
>>> NVidia    | drm-kmod:nvidia-driver     | nvidia.ko:nvidia-modeset.ko
>>> Intel GPU | drm-kmod:xf86-video-intel  |
>> - mesa-dri/mesa-libs are needed for both AMD and Intel
>> - the kernel modules you're missing: amdgpu.ko, i915kms.ko
>> - *really* old (*ancient*) Radeons might need drm-legacy-kmod and
>> xf86-video-ati-legacy
>> - "not too old, but not new either" Radeons (Southern Islands and Sea
>> Islands — from HD7750 to R9 290) are supported by *both* radeonkms
>> and amdgpu kernel drivers (amdgpu is of course the newer and better one)
>> - xf86-video-intel is a semi-abandoned pile of bugs, try just not
>> installing it, the default "modesetting" driver with GLAMOR
>> acceleration usually works better
>> - xf86-video-amdgpu is not strictly necessary, it's similar to
>> "modesetting", though it sometimes seems to fix screen tearing, so i'd
>> say keep it
>>
> I forgot to mention that you need libva-intel-driver for VAAPI. hte VAAPI
> support in mesa does not support Intel GPUs. Seems like that should be
> mentioned somewhere. Without it HD video is a bit jerky and eat CPU on my
> system. (You still need mesa-ibs and mesa-dri, of course.)
Awesome, thanks for pointing that out.  I've created a note regarding 
this and will actually do the same on my systems so that I can add it to 
my testing checklist.

Cheers!
-pete

-- 
Pete Wright
pete at nomadlogic.org
@nomadlogicLA