Restart gui (GTK) on Raspberry Pi from remote shell











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I have a script that kills the biggest lxpanel task on my Raspberry Pi, but occasionally it kills both tasks, which kills the menu system on the GUI.



I am using VNC to view the desktop and I have putty to create remote shells. I intend to make my script a crontab job, but that means that it does not have a "display:", so "lxpanelctl restart" will not work (cannot open display:).



So, how do I restart the GUI from a crontab job which is like doing it from a remote putty shell?










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    I have a script that kills the biggest lxpanel task on my Raspberry Pi, but occasionally it kills both tasks, which kills the menu system on the GUI.



    I am using VNC to view the desktop and I have putty to create remote shells. I intend to make my script a crontab job, but that means that it does not have a "display:", so "lxpanelctl restart" will not work (cannot open display:).



    So, how do I restart the GUI from a crontab job which is like doing it from a remote putty shell?










    share|improve this question


























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I have a script that kills the biggest lxpanel task on my Raspberry Pi, but occasionally it kills both tasks, which kills the menu system on the GUI.



      I am using VNC to view the desktop and I have putty to create remote shells. I intend to make my script a crontab job, but that means that it does not have a "display:", so "lxpanelctl restart" will not work (cannot open display:).



      So, how do I restart the GUI from a crontab job which is like doing it from a remote putty shell?










      share|improve this question















      I have a script that kills the biggest lxpanel task on my Raspberry Pi, but occasionally it kills both tasks, which kills the menu system on the GUI.



      I am using VNC to view the desktop and I have putty to create remote shells. I intend to make my script a crontab job, but that means that it does not have a "display:", so "lxpanelctl restart" will not work (cannot open display:).



      So, how do I restart the GUI from a crontab job which is like doing it from a remote putty shell?







      linux raspberry-pi gui






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      share|improve this question













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      share|improve this question








      edited Nov 12 at 2:11

























      asked Nov 12 at 2:08









      keithwilke

      33




      33






















          1 Answer
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          Your cron doesn't have its DISPLAY variable set, so it simply doesn't know which display it is to restart lxpanel in.



          Simplest solution:



          # lxpanel restarts every day at 03:00
          00 3 * * * export DISPLAY=":0.0" && lxpanelctl restart





          share|improve this answer








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          • Thanks, that works.
            – keithwilke
            17 hours ago











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          1 Answer
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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          0
          down vote



          accepted










          Your cron doesn't have its DISPLAY variable set, so it simply doesn't know which display it is to restart lxpanel in.



          Simplest solution:



          # lxpanel restarts every day at 03:00
          00 3 * * * export DISPLAY=":0.0" && lxpanelctl restart





          share|improve this answer








          New contributor




          nagimov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.


















          • Thanks, that works.
            – keithwilke
            17 hours ago















          up vote
          0
          down vote



          accepted










          Your cron doesn't have its DISPLAY variable set, so it simply doesn't know which display it is to restart lxpanel in.



          Simplest solution:



          # lxpanel restarts every day at 03:00
          00 3 * * * export DISPLAY=":0.0" && lxpanelctl restart





          share|improve this answer








          New contributor




          nagimov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.


















          • Thanks, that works.
            – keithwilke
            17 hours ago













          up vote
          0
          down vote



          accepted







          up vote
          0
          down vote



          accepted






          Your cron doesn't have its DISPLAY variable set, so it simply doesn't know which display it is to restart lxpanel in.



          Simplest solution:



          # lxpanel restarts every day at 03:00
          00 3 * * * export DISPLAY=":0.0" && lxpanelctl restart





          share|improve this answer








          New contributor




          nagimov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          Your cron doesn't have its DISPLAY variable set, so it simply doesn't know which display it is to restart lxpanel in.



          Simplest solution:



          # lxpanel restarts every day at 03:00
          00 3 * * * export DISPLAY=":0.0" && lxpanelctl restart






          share|improve this answer








          New contributor




          nagimov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          share|improve this answer



          share|improve this answer






          New contributor




          nagimov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.









          answered 2 days ago









          nagimov

          16




          16




          New contributor




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          New contributor





          nagimov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.






          nagimov is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
          Check out our Code of Conduct.












          • Thanks, that works.
            – keithwilke
            17 hours ago


















          • Thanks, that works.
            – keithwilke
            17 hours ago
















          Thanks, that works.
          – keithwilke
          17 hours ago




          Thanks, that works.
          – keithwilke
          17 hours ago


















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