Op Sun, 07 Jan 2018 15:11:54 +0100 schreef Floris :
Op Thu, 04 Jan 2018 22:42:34 +0100 schreef Markus Grunwald
:
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 mar...@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
...
