On Fri, 12 Sep 2014, Kevin Oberman wrote:

On Fri, Sep 12, 2014 at 1:57 PM, Marcin Cieslak <sa...@saper.info> wrote:

Please note I originally loaded "i915.ko", not "i915kms.ko"


Unfortunately, "kldunload i915kms" makes my screen blank
and probably crashes the system (disk activity stops after
a short while and there is no response to the keyboard input).

//Marcin


That explains most of it. You need i915kms. It is conflicting with i915
which already has  the IRQ allocated.

The black screen is expected. Once KMS starts talking to the graphics
system, syscons can no longer talk to the display, so you get a black
screen. To have a working display, you must enable vt(4). Add "kern.vty=vt"
to /boot/loader.conf to enable vt(4) which will keep the display alive.

Yes, I do have "kern.vty=vt" enabled in the loader and without i915kms
loaded my system boots correctly. I can load i915kms later per hand
or when starting X, but it does not work with bootloader.

I think it's a known problem as of September 2nd as stated on the
http://wiki.freebsd.org/Newcons page. (My machine is Sony VAIO SZ5MN).

//Marcin
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