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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