Ubuntu下开启IntelliJ IDEA顶部全局菜单

安装jayatana

sudo add-apt-repository ppa:danjaredg/jayatana
sudo apt update
sudo apt install jayatana

编辑idea64.vmoptions

vi /path/to/idea/bin/idea64.vmoptions
追加一行：

-javaagent:/usr/share/java/jayatanaag.jar

参考文档

https://intellij-support.jetbrains.com/hc/en-us/community/posts/115000060530--Ubuntu-No-global-menu-with-Jayatana