如何在20分钟内从lightdm登录屏幕禁用挂起？
如何在20分钟内从lightdm登录屏幕禁用挂起？
提问于 2021-05-11 20:40:43
请您告诉您如何在20或30分钟内禁用进入挂起模式，当系统处于空闲状态，lightdm登录屏幕处于活动状态(没有用户登录)。
在我们的机器上，诊断命令提供以下dconf参数：
# sudo -H -u lightdm dbus-launch --exit-with-session gsettings list-recursively org.gnome.settings-daemon.plugins.power
org.gnome.settings-daemon.plugins.power lid-close-ac-action 'suspend'
org.gnome.settings-daemon.plugins.power time-critical 300
org.gnome.settings-daemon.plugins.power power-button-action 'suspend'
org.gnome.settings-daemon.plugins.power lid-close-suspend-with-external-monitor false
org.gnome.settings-daemon.plugins.power button-hibernate 'hibernate'
org.gnome.settings-daemon.plugins.power idle-dim true
org.gnome.settings-daemon.plugins.power button-power 'suspend'
org.gnome.settings-daemon.plugins.power lid-close-battery-action 'suspend'
org.gnome.settings-daemon.plugins.power priority 0
org.gnome.settings-daemon.plugins.power idle-brightness 30
org.gnome.settings-daemon.plugins.power active false
org.gnome.settings-daemon.plugins.power critical-battery-action 'hibernate'
org.gnome.settings-daemon.plugins.power button-suspend 'suspend'
org.gnome.settings-daemon.plugins.power button-sleep 'hibernate'
org.gnome.settings-daemon.plugins.power percentage-critical 3
org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout 0
org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing'
org.gnome.settings-daemon.plugins.power ambient-enabled true
org.gnome.settings-daemon.plugins.power notify-perhaps-recall true
org.gnome.settings-daemon.plugins.power percentage-low 10
org.gnome.settings-daemon.plugins.power percentage-action 2
org.gnome.settings-daemon.plugins.power sleep-inactive-battery-type 'nothing'
org.gnome.settings-daemon.plugins.power time-low 0
org.gnome.settings-daemon.plugins.power sleep-inactive-battery-timeout 0
org.gnome.settings-daemon.plugins.power time-action 0
org.gnome.settings-daemon.plugins.power use-time-for-policy true如您所见，电源管理模块不处于活动状态(参数active为false)。
/etc/systemd/logind.conf的内容
# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# Entries in this file show the compile time defaults.
# You can change settings by editing this file.
# Defaults can be restored by simply deleting this file.
#
# See logind.conf(5) for details.
[Login]
#NAutoVTs=6
#ReserveVT=6
#KillUserProcesses=no
#KillOnlyUsers=
#KillExcludeUsers=root
#InhibitDelayMaxSec=5
#HandlePowerKey=poweroff
#HandleSuspendKey=suspend
#HandleHibernateKey=hibernate
#HandleLidSwitch=suspend
#HandleLidSwitchExternalPower=suspend
#HandleLidSwitchDocked=ignore
#PowerKeyIgnoreInhibited=no
#SuspendKeyIgnoreInhibited=no
#HibernateKeyIgnoreInhibited=no
#LidSwitchIgnoreInhibited=yes
#HoldoffTimeoutSec=30s
IdleAction=ignore
IdleActionSec=30min
#RuntimeDirectorySize=10%
#RemoveIPC=yes
#InhibitorsMax=8192
#SessionsMax=8192请告知暂停前20或30分钟的暂停时间可以在哪里进行。
在此之前，非常感谢您。
鲁本·伊斯坎达良。
回答 1
Ask Ubuntu用户
发布于 2021-05-13 17:56:41
最后，找到了解决办法。
造成此问题的原因是，在安装为桌面管理器和迎接器的系统中，轻型和统一问候器的超时间隔分别为数值的两倍：
(1)悬吊前的时间。(2)统一暂停前的时间。
要更改第一组参数(对于lightdm)，我需要通过dconf编辑器为用户lightdm指定值：
sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout 0
sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-battery-timeout 0在暂停时间过去后，我还将操作类型更改为“nothing”。
sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing'
sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-battery-type 'nothing'要更改第二组参数(为了更好地统一)，我需要执行类似的操作：
sudo -u lightdm dbus-launch gsettings set com.canonical.unity.settings-daemon.plugins.power sleep-inactive-ac-timeout 0
sudo -u lightdm dbus-launch gsettings set com.canonical.unity.settings-daemon.plugins.power sleep-inactive-battery-timeout 0和
sudo -u lightdm dbus-launch gsettings set com.canonical.unity.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing'
sudo -u lightdm dbus-launch gsettings set com.canonical.unity.settings-daemon.plugins.power sleep-inactive-battery-type 'nothing'试验表明，未观察到进一步的悬吊事件。
这里没有错误，只是简单地误解了这种轻巧和统一的存储参数在不同的地方。
致以良好的问候，鲁本·亚历山德罗维奇·伊斯坎达良。
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原文链接：
https://askubuntu.com/questions/1337649
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