Trying Out The Modern Linux Desktops With 4 Monitors + AMD/NVIDIA Graphics

As some recent non-performance testing of the AMD and NVIDIA graphics drivers on Linux, I checked in to see how well the various Linux desktop environments were working these days in multi-monitor setups. With the latest AMD Radeon and NVIDIA GeForce graphics cards and drivers, I tried out Unity, GNOME Shell, Xfce, and (attempted) KDE Plasma 5 on Ubuntu 15.04 to check out the latest experience.