57 lines
1.3 KiB
Markdown
57 lines
1.3 KiB
Markdown
# Sway 电源自动管理配置
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## 功能说明
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实现 Sway 环境下根据电源状态自动切换性能模式：
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- **插电源**：`throughput-performance` (高性能)
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- **用电池**：`laptop-battery-powersave` (节能降频)
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仅在 Sway 会话生效，不影响 Plasma 的电源管理。
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## 实现方式
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### 1. 自动切换脚本
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`/usr/local/bin/tuned-auto-switch.sh`
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```bash
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#!/bin/bash
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# Only run if Sway is running
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pgrep -x sway > /dev/null || exit 0
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if [ "$(cat /sys/class/power_supply/AC*/online)" = "1" ]; then
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tuned-adm profile throughput-performance
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else
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tuned-adm profile laptop-battery-powersave
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fi
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```
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### 2. Systemd 服务
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`/etc/systemd/system/tuned-power-switch@.service`
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```ini
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[Unit]
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Description=Switch tuned profile on power change
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[Service]
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Type=oneshot
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ExecStart=/usr/local/bin/tuned-auto-switch.sh
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```
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### 3. Udev 规则
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`/etc/udev/rules.d/99-tuned-power.rules`
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```
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SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="0", TAG+="systemd", ENV{SYSTEMD_WANTS}="tuned-power-switch@$kernel.service"
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SUBSYSTEM=="power_supply", ENV{POWER_SUPPLY_ONLINE}=="1", TAG+="systemd", ENV{SYSTEMD_WANTS}="tuned-power-switch@$kernel.service"
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```
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## 验证
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查看当前配置：
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```bash
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tuned-adm active
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cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
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```
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监控切换日志：
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```bash
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journalctl -f
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```
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