drm-i915kms + x11-intel eats out all of the ram and swap but not with x11-scfb

[Niclas Zeising]

On 2020-04-15 11:30, Alexey Dokuchaev wrote:
> On Tue, Apr 14, 2020 at 12:38:25PM -0700, Kevin Oberman wrote:
>> A day or two ago I saw a post to this list stating that modesetting
>> was not interesting because it did not support 3-D acceleration.
> 
> I think I was quoting this forum post* by yuripv@, but now I see it's
> from 2018 so it might no longer be accurate.  Sorry for confusion.
> 
>> At least on my Sandy Bridge system running the latest available
>> software for FreeBSD 12-STABLE, 3-D acceleration works just fine.
> 
> I'm currently trying to get X11 back to normal on my AMD laptop, and
> without `x11-drivers/xf86-video-ati' port installed X server does not
> even start, spamming me with "radeon: The kernel rejected CS, see dmesg
> for more information (-16)."  Of course, there is nothing useful in
> dmesg. :-(
> 
> Is "modesetting driver" only a thing in the Intel world, or it should
> work for AMD cards too?
> 

To my knowledge, it should work on all cards with a modesetting driver 
(meaning intel, various versions of the AMD/ATI driver, and nVidia, at 
least).  AMD hasn't been as aggressive in deprecating 
xf86-video-[ati,amdgpu] as intel has been with xf86-video-intel though.
This might also be an issue with drm-legacy-kmod vs. drm-kmod.
Regards
-- 
Niclas