EHCI wakeup on Haswell+Lynxpoint motherboards

[Аладышев Константин]

I have Haswell+LynxpointLP motherboard and Linux doesn't wakeup from USB
devices from S3. EHCI controller is listed in "/proc/acpi/wakeup" as
"enabled" and GPE number is seemed to be configured correctly in ACPI to
PME_B0, but it doesn't work.

What is need to be done to enable USB wakeup?

Does USB wakeup work on Haswell+Lynxpoint motherboards?

[Zoran Stojsavljevic]

Hello Konstantin,

I have few questions for you here. If you put back original AMI BIOS for
your board, does it wake up from S3? I do recall that you have kind of
proprietary platform which does switching/routing, and does have only
Coreboot ported. Am I correct?

AMI BIOS would be preferable starting point for debugging/testing of this
problem, but if it does not exist, we'll try something different, with help
of sticks and ropes down the road. Do NOT forget, as I also recall that you
are using very old version of Coreboot: *coreboot-4.0*-8341-g5e6dd5f-dirty *Thu
Mar 19 10:15:27 UTC 2015.*

I have another suggestion for you: to try to go to S4 (hibernation) sleep,
and then to try to wake up? Does this work?

I need from you Linux kernel (preferably Fedora 24/25) S3 and S4 logs. How
to achieve this? If the whole platform does not wake up, simply do the HW
hard reset, and then, after booting up capture previous log with the
command: journalctl -b -1 , and attach it to the email.

Zoran

On Thu, Feb 2, 2017 at 4:26 PM, Аладышев Константин 
wrote:
> I have Haswell+LynxpointLP motherboard and Linux doesn't wakeup from USB
> devices from S3. EHCI controller is listed in "/proc/acpi/wakeup" as
> "enabled" and GPE number is seemed to be configured correctly in ACPI to
> PME_B0, but it doesn't work.
>
> What is need to be done to enable USB wakeup?
>
> Does USB wakeup work on Haswell+Lynxpoint motherboards?