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T570 Powerkey doesn't work

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  T570 Powerkey doesn't work Markus Grunwald <markus@the-grue.de> - 2018-01-04 22:50 +0100
    Re: T570 Powerkey doesn't work Floris <jkfloris@dds.nl> - 2018-01-07 15:20 +0100
      Re: T570 Powerkey doesn't work Floris <jkfloris@dds.nl> - 2018-01-08 11:20 +0100

#190671 — T570 Powerkey doesn't work

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Hello,

as far as I understand, pressing the power key on my Lenovo T570 should
produce some output in the journal like this:

Mär 31 18:04:47 my_computer systemd-logind[1402]: Power key pressed.

On my laptop, this doesn't work - I see nothing in the journal.
Hibernating doesn't work, neither but that's the reason, I think...

Is there something special that I have to do?

cu
-- 
Markus Grunwald
http://www.the-grue.de/~markus/markus_grunwald.gpg

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#190746

Op Thu, 04 Jan 2018 22:42:34 +0100 schreef Markus Grunwald  
<markus@the-grue.de>:

> Hello,
>
> as far as I understand, pressing the power key on my Lenovo T570 should
> produce some output in the journal like this:
>
> Mär 31 18:04:47 my_computer systemd-logind[1402]: Power key pressed.
>
> On my laptop, this doesn't work - I see nothing in the journal.
> Hibernating doesn't work, neither but that's the reason, I think...
>
> Is there something special that I have to do?
>
> cu

Can you find the Powerkey with evtest?

[NumLock example]

sudo evtest /dev/input/event12
...
Event: time 1434666536.001123, type 4 (EV_MSC), code 4 (MSC_SCAN), value  
70053
Event: time 1434666536.001123, type 1 (EV_KEY), code 69 (KEY_NUMLOCK),  
value 0
Event: time 1434666536.001123, -------------- EV_SYN ------------

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#190788

Op Sun, 07 Jan 2018 15:11:54 +0100 schreef Floris <jkfloris@dds.nl>:

> Op Thu, 04 Jan 2018 22:42:34 +0100 schreef Markus Grunwald  
> <markus@the-grue.de>:
>
>> Hello,
>>
>> as far as I understand, pressing the power key on my Lenovo T570 should
>> produce some output in the journal like this:
>>
>> Mär 31 18:04:47 my_computer systemd-logind[1402]: Power key pressed.
>>
>> On my laptop, this doesn't work - I see nothing in the journal.
>> Hibernating doesn't work, neither but that's the reason, I think...
>>
>> Is there something special that I have to do?
>>
>> cu
>
> Can you find the Powerkey with evtest?
>
> [NumLock example]
>
> sudo evtest /dev/input/event12
> ...
> Event: time 1434666536.001123, type 4 (EV_MSC), code 4 (MSC_SCAN), value  
> 70053
> Event: time 1434666536.001123, type 1 (EV_KEY), code 69 (KEY_NUMLOCK),  
> value 0
> Event: time 1434666536.001123, -------------- EV_SYN ------------
>

------------------------------------------------
 from markus@the-grue.de
------------------------------------------------
I see this in /dev/input/event3

Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x0 product 0x1 version 0x0
Input device name: "Power Button"
Supported events:
   Event type 0 (EV_SYN)
   Event type 1 (EV_KEY)
     Event code 116 (KEY_POWER)
Properties:
Testing ... (interrupt to exit)

But nothing happens when I push the button

Neither does it on any of the other /dev/input/event*

cu
------------------------------------------------

The power button is recognized by the kernel. Does systemd also recognize  
the button?	
$ udevadm info /dev/input/event3
Look for a "E: TAGS=:power-switch:" line
	P: /devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input11/event3
	...
	E: SUBSYSTEM=input
	E: TAGS=:power-switch:
	...
$ loginctl seat-status seat0
	...
	/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input11
	input:input11 "Power Button"
	...
Is the power button inhibit by a DE?
	$ systemd-inhibit
	...
	Who: Debian-gdm (UID 111/Debian-gdm, PID 1535/gsd-media-keys)
	What: handle-power-key:handle-suspend-key:handle-hibernate-key
	Why: GNOME handling keypresses
	Mode: block
	...

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