1、安装xcompmgr sudo apt-get install xcompmgr
2、设置xcompmgr自动启动
mkdir～/.config/autostart
vim xcompmgr.desktop
将如下内容写入xcompmgr.desktop文件，保存即可
[Desktop Entry]
Type=Application
Encodeing=UTF-8
Name="xcompmgr"
Comment=""
Exec="xcompmgr"
hidden=false
NoDisplay=false
Terminal=false