I saw this error because the raspi was set to Autologin as “pi” and I had created another user which could not take control of the display.
A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.
Read the statement by Michael Teeuw here.
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Posts
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RE: electron:837): Gtk-WARNING **: cannot open display: 0: