From owner-freebsd-current@freebsd.org  Mon Dec  7 16:18:32 2015
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Date: Mon, 7 Dec 2015 08:18:32 -0800
Message-ID: <CAJ-Vmom3xd7B+3hcFvP-yzGSDv1m3E+dRj_EdL8s+VzKMHN2zQ@mail.gmail.com>
Subject: Re: slow screen updates on laptop console (i386)
From: Adrian Chadd <adrian.chadd@gmail.com>
To: Rick Macklem <rmacklem@uoguelph.ca>
Cc: Alexander Kabaev <kabaev@gmail.com>,
 FreeBSD Current <freebsd-current@freebsd.org>
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Hi,

ok. please file a bug for that. It may be something to do with the
hardware and sleep states and skipping wakeups/interrupts or
something.

Please try using the default again (LAPIC?) and set
kern.eventtimer.periodic=1. See if that fixes it.

(i've had to debug this a few times before.)



-a