linux-kernel - Re: New prototype computer problem with S3 suspend

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Date:	Fri, 07 Jun 2013 10:14:03 +0200
From:	Boszormenyi Zoltan <zboszor@...hu>
To:	Aaron Lu <aaron.lwe@...il.com>
CC:	dri-devel@...ts.freedesktop.org,
	lkml <linux-kernel@...r.kernel.org>, linux-acpi@...r.kernel.org,
	Steve Tilden <stilden@...om.com>
Subject: Re: New prototype computer problem with S3 suspend

2013-06-07 03:17 keltezéssel, Aaron Lu írta:
> On 06/07/2013 02:11 AM, Boszormenyi Zoltan wrote:
>> Hi,
>>
>> we are working on an Intel Atom-based embedded PC and I have to
>> make suspend-to-RAM work but I can't seem to succeed.
>>
>> The symptom is that quite often, the machine resumes immediately
>> after pm-suspend. Sometimes more than 20 times out of 50 attempts.
> Can you please file a bug about this?
> https://bugzilla.kernel.org
>
>> I have tried 3.7.10, 3.9.4, 3.10-rc[234] and the linux-next branch from the
>> git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git repository.
>> The attached dmesg is from today's linux-pm/linux-next plus the
>> latest drm-fixes patchset posted by Dave Airlie.
>>
>> I have tried disabling wakeup devices via /proc/acpi/wakeup and via sysfs files.
>> (/sys/devices/.../wakeup)
> >From the dmesg, the following three devices are still armed with wakeup
> capability and might be the cause:
>
> i8042 kbd 00:03: System wakeup enabled by ACPI
> PM: suspend of devices complete after 578.883 msecs
> PM: late suspend of devices complete after 0.279 msecs
> pcieport 0000:00:1c.1: System wakeup enabled by ACPI
> ehci-pci 0000:00:1d.7: System wakeup enabled by ACPI
> PM: noirq suspend of devices complete after 31.946 msecs
>
> Anyway, please file a bug there, thanks.

For the suspend bug:
https://bugzilla.kernel.org/show_bug.cgi?id=59401

For the warnings in i915:
https://bugs.freedesktop.org/show_bug.cgi?id=65497

Best regards,
Zoltán Böszörményi

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