删除unity
sudo apt-get -y --auto-remove purge unity
sudo apt-get -y --auto-remove purge unity-lens-*
sudo apt-get -y --auto-remove purge unity-common
sudo apt-get -y --auto-remove purge unity-services
sudo apt-get -y --auto-remove purge unity-asset-pool
删除覆盖式滚动条
sudo apt-get remove overlay-scrollbar liboverlay-scrollbar3-0.2-0 liboverlay-scrollbar-0.2-0
安装gnome
sudo apt-get install gnome-session-fallback gnome-shell gnome-tweak-tool
sudo /usr/lib/lightm/lightm-set-defaults -s gnome-classic
x2go client中的session type 设置为
Custom desktop gnome-session-fallback
然后再根据自己的需求定制top panel就行了。（Alt+右键）