Using drm-next in 11.2

Claude Buisson clbuisson at
Wed Sep 12 10:12:59 UTC 2018

On 09/11/2018 14:50, Pete French wrote:
> So, I was trying to switch to using this, as I realise its where things
> are heading, and I rather like the look of it. But I cant get it to see my
> multiple monitors. I install the port, set 'kld_list="amdgpu"' and it boots
> up with the new modules, and appears to find all my displays in dmesg. But
> when I start X it only uses the single display port, mirroring it to DVI.
> When I start X what I am seeing in dmesg is this:
> module_register: cannot register drmn from drm2.ko; already loaded from drm.ko
> Module drmn failed to register: 17
> KLD radeonkms.ko: depends on drmn - not available or version mismatch
> linker_load_file: Unsupported file type

Starting from the beginning:

how the "drm.ko" is loaded ?

My experience (with the drm2 from base) is that drm.ko and drm2.ko must 
not be loaded at the same time.

Claude Buisson

More information about the freebsd-stable mailing list