Re: [PATCH] ACPI / sleep: EC-based wakeup from suspend-to-idle on recent systems

Tom Lanyon
2017-06-27T10:54:41Z

On 27 June 2017 at 16:47, Andy Shevchenko <andy.shevchenko@gmail.com> wrote:
> Tom, thanks for this.
> I would speculate that the problem might be in the certain device
> drivers. It would be nice to get statistics which wakeup source
> generates more hits.

Is this something I can determine without CONFIG_ACPI_DEBUG being enabled?

I don't get anything in dmesg other than indications that it's
resuming and then sleeping again every second or so.

[ 45.463907] PM: Suspending system (freeze)
[ 47.703216] PM: suspend of devices complete after 2028.170 msecs
[ 47.721329] PM: late suspend of devices complete after 18.108 msecs
[ 47.723153] ACPI : EC: interrupt blocked
[ 47.757801] PM: noirq suspend of devices complete after 35.746 msecs
[ 47.757802] PM: suspend-to-idle
[ 48.944708] Suspended for 0.779 seconds
[ 48.945030] ACPI : EC: interrupt unblocked
[ 48.980728] PM: noirq resume of devices complete after 35.924 msecs
[ 48.982265] ACPI : EC: interrupt blocked
[ 49.027946] PM: noirq suspend of devices complete after 47.016 msecs