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Date: Wed, 26 Feb 2014 11:44:11 +0200
From: Johannes Meixner <xmj@chaot.net>
To: freebsd-acpi@freebsd.org
Subject: hw.acpi.reset_video behavior when multiple VGA cards are prresent
Message-ID: <20140226094411.GA9562@mx12.chaot.net>
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Hi,

I've been trying to work out why my ASUS ZenBook can't work with S3 sleepst=
ates.

Resume works theoretically like a charm (I suspend with music playing; the =
music
stops and continues upon wakeup; I can reboot the system).=20

One thing that does not, however, is VGA resume. The screen will just stay
blank.=20

So I looked into it a little and realized -- what's the expected behaviour =
towards=20
video reset when multiple VGA cards are present (NVIDIA Optimus) with vgapc=
i0=20
being the (unusable) NVIDIA board and vgapci1 the (usable with Xorg, vt(9),=
 KMS etc)
Intel one?

Best
Johannes

--=20
xmj@chaot.net
http://xmj.me

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