Установил Mir на Ubuntu 13.10 согласно
https://wiki.ubuntu.com/Mir/Installing$> sudo apt-get update
$> sudo apt-get dist-upgrade
$> sudo apt-get install unity-system-compositor
$> sudo restart lightdm
OS: Ubuntu 13.10, Kernel: 3.11.0-1-generic (x86_64), Desktop: Unity 7.1.0, Display Server: Unity-System-Compositor 0.0.1 + X Server 1.14.2, Display Driver: radeon 7.2.0, OpenGL: 3.1 Mesa 9.1.6 Gallium 0.4, Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1920x1080, видеокарта AMD FirePro V3900 1024MB.