Ubuntu
gnome-panel package

gnome panel disappears

Asked by Jim Charters

I have been facing a minor annoyance with the gnome panel for a while that seems different from other gnome panel issues. At random times the top and bottom panel's disappear. i have tried opening a terminal and killing the gnome-panel process to see if they would restart. The process restarts but the panel's don't reappear. If I restart my machine the panels are restored, but this is annoying - fortunately Linux reboots happen fast ;-).

I am running Ubuntu 10.04 on a Dell Latitude 620. I have had this issue since I installed Ubuntu. Other than this the OS rocks!

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Jason Odoom (jasonodoom) said : 		#1

Did you check the properties to see if they are enabled on hiding? Reset your panels by running this in the Terminal: gconftool-2 --recursive-unset /apps/panel
killall gnome-panel

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bruno silva (brunocaldeira8) said : 		#2

qual sua placa de video?

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Jim Charters (jim-jimandjen) said : 		#3

Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)

On Fri, Apr 22, 2011 at 11:56 AM, bruno silva <
<email address hidden>> wrote:

> Your question #153864 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/153864
>
> Status: Needs information => Answered
>
> bruno silva proposed the following answer:
> qual sua placa de video?
>
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Jim Charters (jim-jimandjen) said : 		#4

Hiding isn't enabled. The panels can stay visible for hours, then
disappear. I haven't been able to isolate a particular application that
causes it, and it happens both after the screen saver has kicked in as well
as when I am using the machine.

Will the gconftool-2 command effectively "cycle" the panel process? I will
try this next time the problem occurs.

On Fri, Apr 22, 2011 at 11:55 AM, Jason Odoom <
<email address hidden>> wrote:

> Your question #153864 on Ubuntu changed:
> https://answers.launchpad.net/ubuntu/+question/153864
>
> Status: Open => Needs information
>
> Jason Odoom requested for more information:
> Did you check the properties to see if they are enabled on hiding? Reset
> your panels by running this in the Terminal: gconftool-2 --recursive-unset
> /apps/panel
> killall gnome-panel
>
> --
> To answer this request for more information, you can either reply to
> this email or enter your reply at the following page:
> https://answers.launchpad.net/ubuntu/+question/153864
>
> You received this question notification because you are a direct
> subscriber of the question.
>

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Sam_ (and-sam) said : 		#5

> fortunately Linux reboots happen fast

Actually it doesn't need to be rebooted at all.
After changes have been made which may require restart, logout is sufficient.
Maybe a freeze requires reboot, but before a user may try to fix things via tty (virtual console, text only).

Random disappearance can be caused for example by compiz, i.e. disable visual effects.
https://answers.launchpad.net/ubuntu/+source/gnome-panel/+question/149051

http://www.starryhope.com/linux/ubuntu/2010/restore-the-default-panels-in-ubuntu/

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