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ssh -X)?XAUTHORITY(tested withzenityincron)xhostCheck the output ofxhost, remove the entry withxhost -SI:localuser:USERNAMEand try again.xhostentries can be given, but do not rely on them.XAUTHORITYto what I fetched from Xorg command or other places, in cron, I get error 'Unable to init server: Could not connect: Connection refused' (with the good DISPLAY and the same user)