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Duncan,<br>
<br>
took a look at the IT8772F data sheet (well, 8712, closest I could
find: <a class="moz-txt-link-freetext" href="http://www.hardwaresecrets.com/datasheets/it8712f.pdf">http://www.hardwaresecrets.com/datasheets/it8712f.pdf</a> ) and it
seems that there's no setting of the PCR1/2 registers that will
force #PSON high when AC power is applied - it's always conditional
on the previous system power state. <br>
<br>
I'd be happy for someone else to take a look and tell me I'm
misreading though :)<br>
<br>
cheers,<br>
Matt<br>
<br>
<div class="moz-cite-prefix">On 3/26/2015 5:21 PM, Matt DeVillier
wrote:<br>
</div>
<blockquote cite="mid:5514865E.6050508@gmail.com" type="cite">
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On 3/26/2015 9:49 AM, Duncan Laurie wrote:<br>
<blockquote
cite="mid:CADv6+07reeWLD2nk+Js_-owaMZMGM5Ak8gtDw9Q1Ope=LQaEMQ@mail.gmail.com"
type="cite">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">On Wed, Mar 25, 2015 at 11:35 PM,
Matt DeVillier <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:matt.devillier@gmail.com" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:matt.devillier@gmail.com">matt.devillier@gmail.com</a></a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Greetings
all!<br>
<br>
I was wondering if it's possible to have Panther (Asus
ChromeBox - Haswell/Lynxpoint) power on when AC power
connected regardless of the previous power state.
Currently, the box will power on if AC power is lost and
the device was powered on, but not if powered off. I
have a use case where it would be convenient to be able
to power on the boxes by toggling AC power (eg, the
boxes are not within physical reach). I modified the
CMOS default setting for 'power_on_after_fail' to be
enabled and verified its status with nvramtool. I also
tried modifying lpc.c/smihandler.c in the southbridge
code to force MAINBOARD_POWER_ON (rather than
MAINBOARD_POWER_KEEP) in all cases, to no avail.<br>
<br>
Am I approaching this from the wrong angle, or is it
perhaps not possible with these boxes?<br>
<br>
</blockquote>
<div><br>
</div>
<div><br>
</div>
<div>This might be due to the SuperIO instead of the
Southbridge. Panther does call
it8772f_ac_resume_southbridge() which *should* be making
the southbridge the one responsible for the power
behavior when AC is applied, but as a first test you
could try removing that call to see if the default
SuperIO behavior is closer to what you want.</div>
</div>
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</blockquote>
<br>
Hi Duncan, I tried removing the call as suggested, but it didn't
change the behavior at all. Any thoughts as to where to look
next?<br>
<br>
thanks!<br>
-Matt<br>
<br>
<blockquote
cite="mid:CADv6+07reeWLD2nk+Js_-owaMZMGM5Ak8gtDw9Q1Ope=LQaEMQ@mail.gmail.com"
type="cite">
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<div class="gmail_extra">
<div class="gmail_quote">
<div><br>
</div>
<div>-duncan</div>
<div><br>
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</blockquote>
<br>
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