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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>I wrote a simple Lazarus program that displays a window and a button and did the same thing using Glade which also uses Gtk+.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I am using a Beaglebone Black with the latest stock Debian Jessie image which start a LxQt desktop program after it boots up.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>When I run my program in the LxQt window or in a terminal window, it runs fine.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Now I want my Lazarus or Glade/Gtk program to run when I boot and not see the LxQt desktop program.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I have tried using the Crontab with @reboot command method and the create a .service and use systemctl to register and start it.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>No matter what I try I get “ Gtk-WARNING **: cannot open display: “. This also happen on a Beaglebone Green and happens when I use Wheezy or Jessie.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>What am I doing wrong and how can I fix it?<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Newbie Ed<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>