powerd and wlanpacket [PATCH] revised patches
pgf at laptop.org
Mon Feb 27 07:54:17 EST 2012
> On Sun, 2012-02-26 at 10:46 -0500, Paul Fox wrote:
> > first, to clarify: "DCON" doesn't take over the system. powerd uses
> > the DCON to blank the screen -- that's all it does. it has no effect
> > whatsoever on wireless. i don't believe there can be a race condition
> > there.
> > what _does_ happen, soon after we prepare for sleeping by setting the
> > wireless wakeup conditions with ethtool, is we call rtcwake. that's
> > where the system suspends.
i don't think i answered this:
> After every almost every rtcwake there is DCON activity, is that not
> what causes the need to re-set the wol setting?
no. the wol setting is lost when the system comes out of suspend,
i.e., when rtcwake completes, in this case. the loss of wol settings
is a bug, which is no longer present in 3.0 and later kernels.
paul fox, pgf at laptop.org
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