On 17-08-16 18:03, jingyun at cpu-os.ac.cn 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.

Do you mean that wakeup by keyboard doesn't work only if PC was
suspended by pressing special suspend key on your keyboard?
And if it was suspended by from operating system or by pressing button
on case wakeup by keyboard does work?

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.

Thanks again.

Jim

-- 
Best regards,
Andrey Skvortsov
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