Intel ValleyView kms console lock up

[Todd Hoover]

My Asus (Intel N2830  @ 2.16GHz) needs kern.kms_console="0" now.  Without this, exiting the X server will lock up tight requiring a long press of the power button.  With kms_console off, it shuts down with a black screen on the way, but it shuts down ok!

It is running this snapshot:  DragonFly asus 4.3-DEVELOPMENT DragonFly v4.3.0.387.g27b6eee-DEVELOPMENT #0: Thu Jul 30 10:39:15 UTC 2015     root at pkgbox64.dragonflybsd.org:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64

The gui was installed with "pkg install xorg xfce4 xfce4-power-manager firefox", acpi_video is loaded and dbus is enabled.