[Kubuntu 8.04] KDE Panel disappears for ever after crash

[Kenobi]

The panel disappeares suddenly (after my first day of testing) and even rebooting doesn't bring it back.

[Someguyouknow (someguyouknow)]

I can confirm the same thing. Also, System Settings is broken. I believe because of that, the sound is broken too.

Also, adding a panel causes a funky checkered panel to the screen.

[Someguyouknow (someguyouknow)]

Edit: Sound is not broken. But there is some kind of conflict that comes up.
SystemSettings is still broken though.

[Ole (o-l-e)]

in UBUNTU 8.04 the Gnome Panel disappeared in my case as well. Since I was 'lost' I actually reinstalled and then the same thing happened again. Now, I am virtually certain that the problem was created by an UPGRADE!
I (of course) allowed the suggested upgrade (some 40 items) and that seemed to BREAK the system.
I am so annoyed, is Ubuntu Linux now going down the Windows route!???

I managed to bring the panels back: The commands I used were:

> kill gnome-panel
> sudo apt-get install gnome-panel
> gnome-panel

...the panels then restarted and reported three conflicts (little panels popped up) with other software (appletts, see below) (presumably the stuff from the upgrade). In every case I chose the option to remove the offending bit of saftware (joke for German readers) whenever I was prompted by these information panels.

Hope this helps (not convinced other stuff is not broken...), Ole

Conclusion, I would not upgrade to Ubuntu 8.04 yet!
===========================================
Here is a copy/paste from my terminal:

ole@oles:~$
ole@oles:~$ killall gnome-panel
gnome-panel: no process killed
ole@oles:~$ gnome-panel
The program 'gnome-panel' is currently not installed. You can install it by typing:
sudo apt-get install gnome-panel
bash: gnome-panel: command not found
ole@oles:~$ sudo apt-get install gnome-panel
[sudo] password for ole:
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
  evolution-data-server-common gnome-control-center libcamel1.2-11 libebook1.2-9 libecal1.2-7 libedataserver1.2-9
  libedataserverui1.2-8
Suggested packages:
  esound-clients xrdb fortunes-mod nautilus
Recommended packages:
  evolution-data-server alacarte gnome-applets menu-xdg
The following NEW packages will be installed
  evolution-data-server-common gnome-control-center gnome-panel libcamel1.2-11 libebook1.2-9 libecal1.2-7
  libedataserver1.2-9 libedataserverui1.2-8
0 upgraded, 8 newly installed, 0 to remove and 0 not upgraded.
Need to get 1766kB of archives.
After this operation, 13.0MB of additional disk space will be used.
Do you want to continue [Y/n]? Y
Get: 1 http://gb.archive.ubuntu.com hardy-proposed/main evolution-data-server-common 2.22.1-0ubuntu2.1 [72.1kB]
Get: 2 http://gb.archive.ubuntu.com hardy-proposed/main libedataserver1.2-9 2.22.1-0ubuntu2.1 [112kB]
Get: 3 http://gb.archive.ubuntu.com hardy-proposed/main libcamel1.2-11 2.22.1-0ubuntu2.1 [304kB]
Get: 4 http://gb.archive.ubuntu.com hardy-proposed/main libebook1.2-9 2.22.1-0ubuntu2.1 [79.6kB]
Get: 5 http://gb.archive.ubuntu.com hardy-proposed/main gnome-control-center 1:2.22.1-0ubuntu4.1 [487kB]
Get: 6 http://gb.archive.ubuntu.com hardy-proposed/main libecal1.2-7 2.22.1-0ubuntu2.1 [242kB]
Get: 7 http://gb.archive.ubuntu.com hardy-proposed/main libedataserverui1.2-8 2.22.1-0ubuntu2.1 [75.3kB]
Get: 8 http://gb.archive.ubuntu.com hardy/main gnome-panel 1:2.22.1.2-0ubuntu3 [395kB]
Fetched 1766kB in 0s (5868kB/s)
Selecting previously deselected package evolution-data-server-common.
(Reading database ... 92225 files and directories currently installed.)
Unpacking evolution-data-server-common (fr...

[Someguyouknow (someguyouknow)]

I was able to bring the panel back by deleting /home/Username/.kde4/share/config/plasma-appletsrc
It still disappears after reboot.

[Ole (o-l-e)]

I later noticed lots of other things were broken.
The background was black and remained unresponsive (could not click on it to change properties say). I did not fix this...
The Nautilus file browser had gone (had to reinstall it).
I think I noticed another big problem (something missing!?). Anyway, to cut a long story short, I reinstalled Ubuntu 7.10 and I am not going to touch Ubuntu 8.04 for another year.

Thanks to all those other people who are willing to be beta-testers to what, slightly prematurely, has been called a stable release.
Ole

[Yuriy Kozlov (yuriy-kozlov)]

Kenobi:
If you are still having this problem, please post your ~/.kde4/share/config/plasma-appletsrc and ~/.kde4/share/config/plasmarc (as attachments)

Someguyouknow:
Please report a separate bug about system settings. In that bug, please explain "broken" a little better.

Ole:
This is about KDE. Your GNOME problem is unrelated. Please file a separate bug.

[Jonathan Thomas (echidnaman)]

We are closing this bug report because it lacks the information we need
to investigate the problem, as described in the previous comments.
Please reopen it if you can give us the missing information, and don't
hesitate to submit bug reports in the future.

[Nishant (asthefrostcommands)]

I had installed the KDE Desktop package about 20 hours ago upon my gnome Ubuntu Hardy, and have been "gettin acquainted" with Kubuntu ... i'm new to linux in general, and its been my first experience with KDE based environment today! So i might not be able to provide the technical info since i have only tried some simple methods including most of above (except unistallation of packages), and have shared the same results thus far as described above ....

Nevertheless, i shall try to explain it the best i can, hope it gives further insight to the problem ....

Problem:
- The main panel (bottom) seems to disappear all of a sudden!
- changing sessions does not help! restarting xserver does not bring it back, nor a system restart!
- Loggin off from the main account produces a black screen, with cursor upon it, but no shutdown/log off options! (this on right clicking the desktop and trying to "log out")

Symptoms:
- a noticeable pattern prior to this problem has been that the minimized application windows dont show on the task bar! there is the animation related to "minimization" of teh window, but then the minimized window itself doesent show on the panel! and the panel stays only so long as any previously "minimized" windows stay, but once you click on those windows and minimize them again ... they dissapear! and once you have none of the application windows left on the panel, the panel dissapears itself!
            It must be noted though that the shortcut to Katapult works, so does alt + tab! the amaroK plays in the bg as normal ...so all applications work and so do their shortcuts ... but the panel itself stays gone!

Temp solution
----> the way its worked for me thus far, is by manual improper shutdown ... so the system is restored thanks to journaling, and immediately on getting back to the desktop(fresh session) i click on the panel and open its configuration window ... change a few settings and continue .... cos the same problem still persists otherwise!
         But even this has failed sometimes tho! and i've had to restart the system, and try starting a fresh session again!

[Kenobi (kazmirzak)]

Hi Nishant!

* Try to install ALL UPDATES provided by the update notifyer. I think this has solved the problem for me as it never disappeared again.

* Try to kill Plasma (Alt + F2 ==> killall plasma) and then restart plasma (Alt + F2 ==> plasma), although I have no idea if this might help.