当笔记本电脑盖子打开时，如何打开/etc/acpi/lid.sh？

Question

版本1

直接转到下面的第2版

在Debian上，我跟随本指南定义了一种当我的笔记本电脑的盖子关闭时的行为。

因此，我做了以下修改：

#!/bin/sh

# Disable sleep on lead (do noting)
echo 'HandleLidSwitch=ignore' | tee --append /etc/systemd/logind.conf
echo 'HandleLidSwitchDocked=ignore' | tee --append /etc/systemd/logind.conf
sudo service systemd-logind restart


# Disable screen on lid close/etc/acpi/events
mkdir -r /etc/acpi/events
echo 'event=button/lid.*' | tee --append /etc/acpi/events/lm_lid
echo 'action=/etc/acpi/lid.sh' | tee --append /etc/acpi/events/lm_lid
# The lid.sh should be in the same directory
mv ./lid.sh /etc/acpi/lid.sh
chmod +x /etc/acpi/lid.sh

# Restarting service to take effect
/etc/init.d/acpid restart

然后创建/etc/acpi/lid.sh，它在每次关闭盖子时都被激活，而不是默认的行为。

lid.sh如下所示：

#!/bin/bash
#
# Lid closing event script


grep -q close /proc/acpi/button/lid/*/state
if [ $? = 0 ]; then
        echo close>>/tmp/screen.lid
     # main user
    USER=fauve
    # Remaining percent of battry
    REMAININGBAT=$(upower -i /org/freedesktop/UPower/devices/battery_BAT0 | grep percentage | sed "s/ *percentage: *\(.*\)%/\1/")

    # Test battry remaining percentage
    if [ $REMAININGBAT -gt 10 ]; then
        # If the percentage is higher than 10
        TIMEBEFORELOCK="1m"
        TIMEBEFORESUSPENSION="9m"
        TIMEBEFORESHUTDOWN="5 minutes"
    else
        # If the percentage is less than 10
        TIMEBEFORELOCK="1m"
        TIMEBEFORESUSPENSION="2m"
        TIMEBEFORESHUTDOWN="4 minutes"
    fi

    # Do noting a ${TIMEBEFORELOCK} time
    # In case if a quick shifting from a room to another
    echo "$(date): Waiting ${TIMEBEFORELOCK} before lock"
    sleep ${TIMEBEFORELOCK}

    # set screensaver for ${TIMEBEFORESUSPENSION} time
    echo "$(date): Lock now"
    su -c  "DISPLAY=:0.0 /home/$USER/.local/bin/screenlock" - $USER &
    echo "$(date): Waiting ${TIMEBEFORESUSPENSION} before suspension"
    sleep ${TIMEBEFORESUSPENSION}

    # Set a wake up at given time
    echo "$(date): Seting time before waking up to ${TIMEBEFORESHUTDOWN}"
    echo `date '+%s' -d "+ ${TIMEBEFORESHUTDOWN}"` > /sys/class/rtc/rtc0/wakealarm

    # Suspend for ${TIMEBEFORESHUTDOWN} time
    echo "$(date): Starting suspention for ${TIMEBEFORESHUTDOWN}"
    systemctl suspend
    echo "$(date): Wake up"

    # Wait 5s to ensure the next command will take effect
    sleep 5s

    # shutdown
    #echo "$(date): Shutdown"
    #shutdown +0
fi
grep -q open /proc/acpi/button/lid/*/state
if [ $? = 0 ]; then
    echo open>>/tmp/screen.lid
fi

只要我不打开盖子，这个剧本就应该继续下去。但是，当盖子打开时(如果最后一行还没有到达)，就必须中断。

那么，当我打开盖子的时候，怎么告诉ACPI去打断我呢？

第2版

因此，我更新我的脚本如下：

#!/bin/bash
#
# Lid closing event script

PIDFILE=/tmp/lidpid

grep -q close /proc/acpi/button/lid/*/state
if [ $? = 0 ]; then
    echo $ > $PIDFILE
    echo "$(date) close">>/tmp/screen.lid
     # main user
    USER=fauve
    # Remaining percent of battry
    REMAININGBAT=$(upower -i /org/freedesktop/UPower/devices/battery_BAT0 | grep percentage | sed "s/ *percentage: *\(.*\)%/\1/")

    # Test battry remaining percentage
    if [ $REMAININGBAT -gt 10 ]; then
        # If the percentage is higher than 10
        TIMEBEFORELOCK="1m"
        TIMEBEFORESUSPENSION="9m"
        TIMEBEFORESHUTDOWN="5 minutes"
    else
        # If the percentage is less than 10
        TIMEBEFORELOCK="1m"
        TIMEBEFORESUSPENSION="2m"
        TIMEBEFORESHUTDOWN="4 minutes"
    fi

    # Do noting a ${TIMEBEFORELOCK} time
    # In case if a quick shifting from a room to another
    echo "$(date): Waiting ${TIMEBEFORELOCK} before lock"
    sleep ${TIMEBEFORELOCK}

    # set screensaver for ${TIMEBEFORESUSPENSION} time
    echo "$(date): Lock now"
    su -c  "DISPLAY=:0.0 /home/$USER/.local/bin/screenlock" - $USER &
    echo "$(date): Waiting ${TIMEBEFORESUSPENSION} before suspension"
    sleep ${TIMEBEFORESUSPENSION}

    # Set a wake up at given time
    echo "$(date): Seting time before waking up to ${TIMEBEFORESHUTDOWN}"
    echo `date '+%s' -d "+ ${TIMEBEFORESHUTDOWN}"` > /sys/class/rtc/rtc0/wakealarm

    # Suspend for ${TIMEBEFORESHUTDOWN} time
    echo "$(date): Starting suspention for ${TIMEBEFORESHUTDOWN}"
    systemctl suspend
    echo "$(date): Wake up"

    # Wait 5s to ensure the next command will take effect
    sleep 5s

    echo "Going to shutdown"
    # shutdown
    #echo "$(date): Shutdown"
    shutdown +0
fi


# Wait 5s to ensure the next command will take effect
sleep 5s
grep -q open /proc/acpi/button/lid/*/state
if [ $? = 0 ]; then
    echo "$(date) open">>/tmp/screen.lid
    if [ -e $PIDFILE ] ; then
        kill -9 $(cat $PIDFILE)
    fi
fi

但现在的问题是，ACPI有一些问题，以发现盖子打开。当我关闭和打开盖子，然后我去/tmp/screen.lid我发现“关闭”标记，但我没有找到“打开”标记。“开放”标记出现的时间较晚，似乎是随机的。

Answer 1

你的脚本有很多问题。

我看到的第一个问题是，您没有像指南中那样检查/proc/acpi/按钮/ lid /*/状态中的盖子状态。您的脚本将在打开和关闭操作时被触发，您需要自己添加检查。

其次，在打开盖子时，需要一些机制来停止已经运行的脚本实例。