After the latest update xorg-server (1.12.4_5,1) fails to start

[Tijl Coosemans]

On Fri, 18 Apr 2014 12:17:14 +0300 Jukka Ukkonen wrote:
> 
> As the subject line already said I have not been able to use X on my 
> 10.0-stable
> after the last xorg-server update. The symptoms are shown below.
> 
> I guess the whole trouble is rooted on this...
> 
> Apr 18 11:13:04 sleipnir kernel: drmn0: <ATI Radeon HD 2600 Pro> on vgapci0
> Apr 18 11:13:04 sleipnir kernel: device_attach: drmn0 attach returned 2

That looks like the old drm driver.  Make sure you have drm2.ko,
radeonkms.ko and radeonkmsfw_*.ko in /boot/kernel.  Check that you don't
load the old drm module from /boot/loader.conf.  Also check if you have
anything drm related in your kernel config.  Remove it if so and rebuild
your kernel.