# 常用命令和优化

### 正确开启 HIDPI

注意必须使用 1424x802 的分辨率，才能在休眠唤醒的时候不遇到四分之一屏和花屏。

使用以下代码开启：

```bash
bash -c "$(curl -fsSL https://gitee.com/kirainmoe/static-files/raw/master/hidpi.sh)"
```

如要恢复，删除 /System/Library/Displays/Contents/Resources/Overrides/DisplayVendorID-9e5 即可。如果你是 Catalina 以上系统，你可能需要进入 Recovery 模式下挂载系统分区操作。

```bash
cd /Volumes/"Your System Disk Part"/System/Library/Displays/Contents/Resources/Overrides
rm -rf ./DisplayVendorID-9e5
cp -r ./backup/* ./
```

### macOS 和 Windows 时间同步

首先确保你在 macOS 下设置了正确的时区。在 Windows 下以管理员权限在 cmd 中执行以下命令：

```bash
Reg add HKLM\SYSTEM\CurrentControlSet\Control\TimeZoneInformation /v RealTimeIsUniversal /t REG_DWORD /d 1
```

### 重建系统缓存

```bash
sudo kextcache -i /
```

### 解决 10.14 以上系统字体渲染模糊

在 macOS 的终端中执行以下命令：

```bash
defaults write -g CGFontRenderingFontSmoothingDisabled -bool NO
```

### 解决睡眠后摄像头失效

```bash
sudo killall VDCAssistant
```


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