A question about graphics subsystems under FreeBSD

[Kevin Oberman]

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.)
--
Kevin Oberman, Part time kid herder and retired Network Engineer
E-mail: rkoberman at gmail.com
PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683