Intel ValleyView kms console lock up
dillon at backplane.com
Mon Aug 10 10:20:20 PDT 2015
I have seen similar issues on my Acer C720 (haswell based). Could you run
a test for me?
* comment out your kern.kms_console=0 line so the KMS console is enabled.
* Instead of rebooting or halting from X, as root do a 'killall xdm' to
This should return you to a KMS console.
* Then try rebooting / shutting down from the KMS console.
What I have noticed on my Acer is two things: First, sometimes when I
start X up I get corruption and have to restart X to get rid of it. But if
I kldload i915kms first and give the kms console time to initialize, and
THEN start X up, I never get corruption. And Second, when I try to
shutdown/reboot from X the laptop often locks up. But if I killall xdm (as
root) to kill X and return to the KMS console, and then shutdown/reboot
from the KMS console, it always works reliably.
On Fri, Jul 31, 2015 at 11:49 PM, Todd Hoover <teachop at hotmail.com> wrote:
> 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
> v184.108.40.2067.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.
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