svn commit: r433902 - head

[Alexey Dokuchaev]

On Sat, Feb 11, 2017 at 07:03:54PM +0000, Matthew Rezny wrote:
> New Revision: 433902
> URL: https://svnweb.freebsd.org/changeset/ports/433902
> 
> Log:
>   Add UPDATING entry for Xorg server 1.18.4
>   
> Modified: head/UPDATING
> ...
> +20170211:
> +  AFFECTS: users of x11-server/xorg-server
> +  AUTHOR: rezny at FreeBSD.org
> +
> +  Xorg server has been updated to 1.18.4 and autodetection has changed.

I've just had a chance to upgrade X.org/Mesa ports on my fresh -CURRENT
laptop, and noticed that X.org server indeed won't startup unless I load
radeonkms.ko module by hand.  I understand that this entry specifically
talks about it, but would like to clarify a few things if you don't mind:

> +  The order in which drivers are now attempted is:
> +    1) vendor/model specific driver according to PCI IDs
> +    2) generic modesetting driver which requires a drm driver with KMS
> +    3) scfb, the generic framebuffer driver
> +    4) vesa (only if arch is x86)

Can you recall what was the previous order?

> +  This should minimize the need for xorg.conf files.

Didn't have one for a quite a few years now, didn't know it was still
needed. ;-)

> +  i.e. kld_list="i915kms.ko", to ensure correct functionality. Although
> +  the vendor drivers may attempt to load the correct drm driver, which
> +  does not always work, the modesetting driver assumes the required KMS

Any ideas why it does not work now with AMD A8 APU (Aruba, NI)?  I don't
mind loading it by hand or via kld_list, but still want to know what had
broken automatic loading in my case (as it worked fine before).

> +  driver is already loaded and will fail if there is none. The modesetting
> +  driver is now recommended as an alternative to the Intel driver; the
> +  performance is comparable and stability is better with modesetting. The
> +  ATI driver continues to offer better performance than modesetting.

Can you elaborate a bit on the last sentense (my context is solely AMD/ATI,
I don't own or care about Intel hardware).  Thanks,

./danfe