https://bugs.kde.org/show_bug.cgi?id=364067
Bug ID: 364067
Summary: Automatic suspend when inhibitor is set
Product: Powerdevil
Version: 5.5.5
Platform: Ubuntu Packages
URL: http://www.vdr-portal.de/board17-developer/board21-vdr
-plugins/129134-softhddevice-und-vdr-shutdown/
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-devel@kde.org
Reporter: rscha...@onlinehome.de
A discussion came up with VDR experts (hey, these guys are also very
experienced) when I was trying to configure my Video Disk Recorder PC also to
be useable as a Desktop PC using KDE. The idea is to have the PC being
controlled by VDR and the user. To avoid that the PCs gets shut down by the
desktop when a recording is active by VDR, the VDR process should set an
inhibitor that is avoiding the shutdown and the Desktop is recognizing this,
not requesting a shutdown. Logind / system-dbus provide the needed
infrastructure with inhibitors for that. The todays behaviour is, that the
user will be prompted for a password in both cases. While this is ok when the
shutdown was triggered by the user, an inactivity timeout should not open a
popup. There I would expect that the desktop waits until the inhibitor has been
closed.
Reproducible: Always
Steps to Reproduce:
1. Set an inhibitor from another user. I used the added python program for
that.
2. Wait until the the desktop wants to suspend due to inactivity. Configure
PowerDevil accordingly.
Actual Results:
A dialog pops up asking for confirmation even that there is likely no user as
the session timed out and a suspend is triggered.
Expected Results:
Power Devil should wait until the inhibitor has been removed. Then a shutdown
should beeing triggered. As an alternative there should be an timeout for the
password prompt a retry to suspend after some time.
This is the program I used to set the inhibitor. Run it from another user and
then try to suspend the machine from the session user. In any case the sleep
will be rejected.
#!/usr/bin/python3
import dbus
import logging
import time
bus = dbus.SystemBus()
def inhibit(what='sleep', who='First Base',
why="left field", mode="block"):
try:
a = bus.get_object('org.freedesktop.login1',
'/org/freedesktop/login1')
interface = 'org.freedesktop.login1.Manager'
print("Inhibitor opened: what = {}, mode = {}".format(what, mode))
fd = a.Inhibit(what, who, why, mode, dbus_interface=interface)
return fd
except Exception as error:
logging.exception(error)
logging.warning("could not set inhibitor lock")
if __name__ == '__main__':
my_inhibitor_fd = inhibit()
#input('press any key to exit inhibitor')
inhibitTime = 1200
print("Suspend inhibitor will be active for {}
seconds".format(inhibitTime))
time.sleep(inhibitTime)
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