This question already has answers here: Launcher disappeared [duplicate] (3 answers) Closed 4 years ago .

After upgrading to 16.04 from 15.10 it was running smoothly for about one week, then it started getting random crashes and freezes and now all the windows borders disappeared. I would include a screenshot but the keyboard shortcut for screenshots doesn't work.

Launcher is missing, and the global menu/ top bar is also missing. Right now my firefox window is maximized to the top and fills the screen like if I had pressed F11 to run it fullscreen. None of the keyboard shortcuts work.

Can't open a terminal using Ctrl + Alt + T. I finally managed to get a terminal open and ran unity --debug and this is the result. [opened the terminal using ctrl+space to open synapse, apparently that works and also copying in terminal and pasting firefox also works]

unity --debug unity-panel-service stop/waiting unity7 stop/waiting unity-panel-service start/running, process 2515 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". /usr/bin/compiz (core) - Info: Loading plugin: core /usr/bin/compiz (core) - Info: Starting plugin: core [New Thread 0x7ffff3638700 (LWP 2588)] /usr/bin/compiz (core) - Info: Loading plugin: ccp /usr/bin/compiz (core) - Info: Starting plugin: ccp [New Thread 0x7fffeb20e700 (LWP 2590)] compizconfig - Info: Backend : gsettings compizconfig - Info: Integration : true compizconfig - Info: Profile : unity [New Thread 0x7fffeaa0d700 (LWP 2591)] /usr/bin/compiz (core) - Info: Loading plugin: composite /usr/bin/compiz (core) - Info: Starting plugin: composite /usr/bin/compiz (core) - Info: Loading plugin: regex /usr/bin/compiz (core) - Info: Starting plugin: regex /usr/bin/compiz (core) - Info: Loading plugin: commands /usr/bin/compiz (core) - Info: Starting plugin: commands /usr/bin/compiz (core) - Info: Loading plugin: resize /usr/bin/compiz (core) - Info: Starting plugin: resize /usr/bin/compiz (core) - Info: Loading plugin: place /usr/bin/compiz (core) - Info: Starting plugin: place /usr/bin/compiz (core) - Info: Loading plugin: move /usr/bin/compiz (core) - Info: Starting plugin: move /usr/bin/compiz (core) - Info: Loading plugin: snap /usr/bin/compiz (core) - Info: Starting plugin: snap /usr/bin/compiz (core) - Info: Loading plugin: session /usr/bin/compiz (core) - Info: Starting plugin: session /usr/bin/compiz (core) - Info: Loading plugin: imgpng /usr/bin/compiz (core) - Info: Starting plugin: imgpng /usr/bin/compiz (core) - Info: Loading plugin: compiztoolbox /usr/bin/compiz (core) - Info: Starting plugin: compiztoolbox /usr/bin/compiz (core) - Error: Plugin 'opengl' not loaded. /usr/bin/compiz (core) - Info: Loading plugin: mousepoll /usr/bin/compiz (core) - Info: Starting plugin: mousepoll /usr/bin/compiz (core) - Info: Loading plugin: vpswitch /usr/bin/compiz (core) - Info: Starting plugin: vpswitch /usr/bin/compiz (core) - Info: Loading plugin: workarounds /usr/bin/compiz (core) - Info: Starting plugin: workarounds /usr/bin/compiz (core) - Error: Plugin 'opengl' not loaded.

There is one error of opengl plugin not loading. Is that the problem?