Panel has disappeared

justakiwi · 2007-02-05 07:33:52

For some totally unknown reason my panel has completely disappeared after a reboot. I had "save session for future logins" set to prompt, and it saved everything except the panel. I can't even access the panel manager - if I click on it nothing happens. Everything else is working fine. I've rebooted again to see if that would fix it but it didn't.

How can I get my panel back?

(I only had one panel, at the bottom of my screen, which had everything I wanted on it including the system tray)

Nick · 2007-02-05 08:35:26

Alt+f2 -> xfce4-panel -> run

justakiwi · 2007-02-05 09:27:38

Nick wrote:

Alt+f2 -> xfce4-panel -> run

Many thanks! Have you any idea why I lost it in the first place? Is there a "hide panel" key combo I might have hit by accident?

Nick · 2007-02-05 09:29:45

Probably a crash and then save your session while you logout. I've seen some signal problems while editing the panel, but /me has no time to fix them :oops:.

brad · 2007-02-06 17:00:31

My panel disappeared as well. I got it back by Alt+f2 -> xfce4-panel -> run. I also selected to "Automatically save session on logout" in the Sessions and Startup settings.

And that worked.

However, I then quit and restarted and the panel doesn't appear. Subsequent "Alt+f2 -> xfce4-panel -> run" only flash the panel (like it's trying to start) and then it quickly disappears.

Any hints?

Nick · 2007-02-06 18:13:28

Are there any warnings printed when you run xfce4-panel inside a terminal emulator?

brad · 2007-02-06 18:39:13

Are there any warnings printed when you run xfce4-panel inside a terminal emulator?

Yes, thanks for the idea.

It seems to depend on what User Interface preference is selected. Sometimes I just get a Seg Fault. Most times the error is:
***glibc detected *** xfce4-panel: free(): invalid pointer: 0x082ee3b0 ***

Nick · 2007-02-06 18:45:24

Can you compile xfce4-panel with debug support? (replace the prefix with the correct one)

CFLAGS="-O0 -g3 -ggdb" ./configure --prefix=/usr/local --enable-debug && make && make install

Create a backtrace in gdb (gdb xfce4-panel -> run -> bt) and create a bugreport here. I'll take a look ASAP.

brad · 2007-02-06 18:47:44

hmm.. also interesting is that if I run xfce4-panel in Terminal, it works.

But, if I run it in the default terminal (what is that called? just a reg 'ol xterm I think) I get the error I mentioned in my last post.

Again, if run in Alt+f2 -> xfce4-panel -> run, it just flashes and goes away.

Nick · 2007-02-06 18:51:25

Weird. Well if you can find a (good) way to reproduce it (maybe some plugin causes the crash for example), I'd like to hear it...

brad · 2007-02-07 01:48:03

It seems to be the weather plugin.
I can provide a trace if someone wants it

brad

justakiwi · 2007-02-07 04:00:30

brad wrote:

It seems to be the weather plugin.
I can provide a trace if someone wants it
brad

Ah! That makes sense because I did install the weather plugin around the time the panel disappeared. As it turned out the weather plugin didn't work properly - it was really glitchy and I couldn't get rid of it via "remove from panel". I had to uninstall it. Now that I think about it the panel probably disappeared sometime after I uninstalled the plugin.

Nick · 2007-02-07 08:42:25

Mm yeah I'd like to have some trace information. Can you put this in a bug report, including your location code, gtk/glib version etc?

brad · 2007-02-07 15:30:39

Mm yeah I'd like to have some trace information. Can you put this in a bug report, including your location code, gtk/glib version etc?

Uhh.. is there Mantis or Bugzilla or other defect tracker for xfce plugins? I'm not familiar with this development so I don't know the particulars. Tell me what you want and how to do it and I'll be glad to.

Nick · 2007-02-07 21:23:00

At least file a bug report here with your weather settings and some version information about gtk and glib. Maybe there is a warning printed when (run xfce4-panel inside a terminal) after the crash?

Debugging a plugin is not very easy (sometimes not even possible), because the panel starts a new process.

AlexIT · 2007-02-19 23:25:00

Ok, I have the same problem.

I recognized, that I have to say in terminal

xfce4-panel

I recognized too, that the problem module is

xfce4-xfapplet-plugin

I know - I have to remove this plugin,

what files I have to edit? roll

Jellybean · 2007-02-20 19:01:24

Inside ~./config/xfce4/panel
remove it from panel.xml
remove its configuration file

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#1 2007-02-05 07:33:52

Panel has disappeared

#2 2007-02-05 08:35:26

Re: Panel has disappeared

#3 2007-02-05 09:27:38

Re: Panel has disappeared

#4 2007-02-05 09:29:45

Re: Panel has disappeared

#5 2007-02-06 17:00:31

Re: Panel has disappeared

#6 2007-02-06 18:13:28

Re: Panel has disappeared

#7 2007-02-06 18:39:13

Re: Panel has disappeared

#8 2007-02-06 18:45:24

Re: Panel has disappeared

#9 2007-02-06 18:47:44

Re: Panel has disappeared

#10 2007-02-06 18:51:25

Re: Panel has disappeared

#11 2007-02-07 01:48:03

Re: Panel has disappeared

#12 2007-02-07 04:00:30

Re: Panel has disappeared

#13 2007-02-07 08:42:25

Re: Panel has disappeared

#14 2007-02-07 15:30:39

Re: Panel has disappeared

#15 2007-02-07 21:23:00

Re: Panel has disappeared

#16 2007-02-19 23:25:00

Re: Panel has disappeared

#17 2007-02-20 19:01:24

Re: Panel has disappeared

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