see the contents of the DISPLAY environment variable. If it's empty then you need to set it up properly (i.e. "export DISPLAY=:0"). "xhost +" may also come in handy.
The "Q"
Re: X-server. How can I know - X-server is running or not?
see the contents of the DISPLAY environment variable. If it's empty then you need to set it up properly (i.e. "export DISPLAY=:0"). "xhost +" may also come in handy.
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