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When I attempt to run nvidia-settings I get the following error message that does not make any sense to me nor does a web search yield any relevant information:

Failed to connect to Mir: Failed to connect to server socket: No such file or directory
Unable to init server: Could not connect: Connection refused

What does this mean? what is Mir? why isn't nvidia-settings working?

Ubuntu 16.04

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up vote 3 down vote accepted

Mir is the next-gen graphical display server created by Canonical that in the future will sostitute the X server. Actually in Ubuntu 16.04 Mir is not installed by default (need to install unity8-desktop-session-mir package). However Mir (for me at least) is not working properly with Nvidia binary drivers (need to use Nouveau)

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