LightDM - Ubuntu WikiWhat is LightDM? LightDM is the display manager running in Ubuntu up to version 16.04 LTS. While it has been replaced by GDM in later Ubuntu releases, LightDM is still used by default in the latest release of several Ubuntu flavors. LightDM starts the X servers, user sessions and greeter (login screen). The default greeter in Ubuntu up to version 16.04 LTS is Unity Greeter. Configuration Later ver
How to determine which window manager (and desktop environment) is running
http://wps.watanet.mydns.jp/2009/02/10/ubuntu%E3%81%A7%E9%9B%BB%E6%BA%90%E3%83%9C%E3%82%BF%E3%83%B3%E3%82%92%E6%8A%BC%E3%81%97%E3%81%A6%E3%83%8F%E3%82%A4%E3%83%90%E3%83%BC%E3%83%8D%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3%E3%81%95%E3%81%9B
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