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Error: No Display Environment Variable Specified When Using X Server

Robert Thorne • • 2 min read
Error: No Display Environment Variable Specified When Using X Server

I am trying to access GUIs from my Ubuntu 22 server. On my Windows 11 cmd with Xming installed (which I don't think I need). I run ssh -X me@myserver. Then in bash I type firefox and get the following result:

Error: no DISPLAY environment variable specified

If I set DISPLAY to localhost 0.0, it says:

Unable to init server: Could not connect: Connection refused Error: cannot open display: :0.0

Do I need an actual display plugged in my server?

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Robert Thorne
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Robert Thorne

Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.