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Thread: Top XFCE panel (taskbar) stops working

  1. #1
    Join Date
    Oct 2010
    Location
    UK
    Beans
    46
    Distro
    Ubuntu Studio 12.04 Precise Pangolin

    Top XFCE panel (taskbar) stops working

    I'm having problems with the XFCE top panel in Ubuntu Studio 12.04. Several times a day when I click on the open tabs, nothing happens and the right hand side log out/shut down menu also is gone. I have to do a hard reboot. Rebooting restores the panel.

    I've just been investigating the Panel Preferences and see that there are two panels. I have just deleted one of them so I now have just the one.

    Any suggestion gratefully received

  2. #2
    Join Date
    Jun 2008
    Beans
    1,287
    Distro
    Ubuntu Studio

    Re: Top XFCE panel (taskbar) stops working

    I'm sure that there is not need for hardware reset.
    Just go to tty1 and restart lightdm.
    Or even better, kill the panel, then start it via Alt+F2.
    Code:
    killall xfce4-panel
    xfce4-panel

  3. #3
    Join Date
    Oct 2010
    Location
    UK
    Beans
    46
    Distro
    Ubuntu Studio 12.04 Precise Pangolin

    Re: Top XFCE panel (taskbar) stops working

    Thanks. I have been doing some research on the Web about possible causes and one is CPU temperature being too high. Yesterday, I installed Psensor and the highest temperature I got was 67 degrees. Not only the panel but also other things stopped working like Alt F2 and Alt + Tab. I had to reboot several times. I have the PC on for long periods. Today I am cleaning the tower and fans to see if that helps.

    I have Dell Inspiron 560 MT desktop with a Core 2 Quad CPU. At what temperature is it over heating?
    Last edited by shaunthesheep; August 29th, 2013 at 07:39 AM.

  4. #4
    Join Date
    Jun 2008
    Beans
    1,287
    Distro
    Ubuntu Studio

    Re: Top XFCE panel (taskbar) stops working

    67°C iz not much if you are working something, but for idle mode on desktop with that CPU it is.
    But also, that is not temperature for overheating. I guess >80°C would be.

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