I install root in WSL. And I write a simple code which draw graph. I sure that the code hasn’t problem. But the graph isn’t invoked and following massage occurs; Error in TGClient::TGClient : can’t open display “:0”, switching to batch mode… In case you run from a remote ssh session, reconnect with…

Hello @Keistad , As @dastudillo said (thanks for the contribution!) you need to run an X11 server to be able to use graphical output. Cheers, J.

Thanks for your advice. When WSL, installing X11 and adding “export DISPLAY=:0” to bashrc is right. But inserting “export DISPLAY=$(grep -oP “(?<=nameserver ).+” /etc/resolv.conf):” to bashrc is good for WSL2. I write this reply for adventure who is annoyed by same problem.

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Display error at WSL

Newbie

dastudillo December 31, 2020, 9:17am 2

Root Installation on WSL Ubuntu ROOT

WSL does not have a graphics server. You need to install (and keep running) an X server like Xming or VcXsrv, and add this line at the end of your ~/.bashrc export DISPLAY=localhost:0

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