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52 lines
1.3 KiB
52 lines
1.3 KiB
2 years ago
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#!/bin/bash
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###
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# @Author: Zhang Yueqian zhangyueqian@antiy.cn
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# @Date: 2022-11-01 09:47:56
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# @LastEditors: Zhang Yueqian zhangyueqian@antiy.cn
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# @LastEditTime: 2022-11-01 13:45:07
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# @FilePath: /screensaver/backend/medr-lightdm-dpms-enable
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# @Description: 在lightdm(greeter)界面启用屏幕休眠功能
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#
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# 本程序需安装在 /usr/local/bin/ 目录下, 配置到 /etc/lightdm/50-medr-dpms.conf 文件中
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###
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# 休眠时间设置文件路径
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TIMEOUT_FILE=/var/run/medr-lightdm
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# 默认休眠时间(分钟)
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DEFAULT_TIMEOUT=10
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# 确认文件存在
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if [ ! -f $TIMEOUT_FILE ]; then
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touch $TIMEOUT_FILE
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fi
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# 获取休眠超时配置, 如果未设置或设置格式非数字, 则返回默认配置 $DEFAULT_TIMEOUT
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function get_timeout() {
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# 首先保证TIMEOUT文件可被修改
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chmod 777 $TIMEOUT_FILE
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# 读取TIMEOUT内容并确认为数字
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TIMEOUT=$(cat $TIMEOUT_FILE)
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case $TIMEOUT in
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'' | *[!0-9]*) echo $DEFAULT_TIMEOUT ;;
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*) echo $TIMEOUT ;;
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esac
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}
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# 入口函数, 读取设置并调用xset
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function main() {
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# 读取超时配置并转换为秒
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TIMEOUT=$(get_timeout)
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TIMEOUT=$((TIMEOUT * 60))
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# 必须的, 似乎是需要等待X启动
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sleep 10
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# 利用X的dpms功能触发屏幕休眠
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xset dpms 0 0 $TIMEOUT
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}
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main &
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