hw.acpi.reset_video behavior when multiple VGA cards are present

[Johannes Meixner]

Hi,

I've originally posted the following to freebsd-acpi@ in February but didn't get
any replies, so maybe someone here can help me out.

I've been trying to work out why my ASUS ZenBook can't work correctly with S3
sleepstates.

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

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

So I looked into it a little and realized -- what's the expected behaviour
towards video reset when multiple VGA cards are present (NVIDIA Optimus) 
with vgapci0 being the (unusable) NVIDIA board and vgapci1 the (usable with 
Xorg, vt(9), KMS etc) Intel one?

As in, which card does `hw.acpi.reset_video` actually reset the video on?

Best
Johannes


-- 
xmj at chaot.net
http://xmj.me
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