Re: Re: USB keyboard can NOT wakeup from S3( suspend to RAM )

["jingyun@xxxxxxxxxxxx" <jingyun@xxxxxxxxxxxx>]

Hi, Greg

Thanks for your time.

First of all, if I do NOT hit the keyboard during the suspend.

Then my keyboard CAN wake the system up from suspend.

This has rule out that my system does NOT support USB wakeup. Right ?

Thanks again.

Jim

---

 

From: Greg KH

Date: 2017-08-30 14:09

To: jingyun@xxxxxxxxxxxx

CC: kernelnewbies

Subject: Re: USB keyboard can NOT wakeup from S3( suspend to RAM )

On Wed, Aug 16, 2017 at 06:03:22PM +0800, jingyun@xxxxxxxxxxxx wrote:

> hi, there

>

> thx in advance;

>

> I encounter a strange (maybe) bug:

> During the suspending of my linux box(which runs debian 9), I hit the key of

> the USB interfaced keyboard;

> after making sure the box enter suspend state  for a while ( which I can tell

> from the power LED blinks),

> I can NOT wakeup it by hit that keyboard any more.

> But if I do NOT hit the key during the suspending, I CAN wake it up by hitting

> the keyboard.

>

> After that I tried Ubuntu 16.04(runs 4.4 version kernel ) and Ubuntu 14.04 (

> 3.13 kernel).

> And I found all of them got the same problem;

>

> Do not know if this is the right place to ask. Just a try.

 

Sounds like your system does not support USB wakeup, which is very

common, sorry.

 

good luck!

 

greg k-h

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