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shell disappeared randomly and system freezes; what happened?

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http://askubuntu.com – So I was using the GNOME-shell one day. It was running with no problems for about 3 hours, then the top bar and the window borders randomly disappeared. I was still able to see the content inside the windows, and for a while, I could drag them around, too. I couldn't access the run prompt via Alt-F2 to reset the shell, and trying to open the Terminal (Ctrl-Alt-T) didn't work, either, so I figured that keyboard shortcuts were no longer working. So then I opened Nautilus by clicking on the Home icon on the desktop, which still seemed to work, navigated to /usr/share/applications, and opened th (HowTos)

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Submitted by Songlist on 01/29/2012 – Made popular on 01/29/2012

Stories similar to shell disappeared randomly and system freezes; what happened?

gnome-shell freezes randomly 36 weeks 4 days ago

Until just a few days ago, my gnome shell was working fine, but now it takes longer to log in, and often freezes (keyboard and mouse and consoles work, nothing else). Could someone please tell me which files I should post to make it easier for others to help me?  Thanks! ~UnsolvedCypher

UnsolvedCypher https://bbs.archlinux.org/profile.php?id=59677

2012-09-09T19:39:44Z

Hi all,

I've got a serious problem with Ubuntu 11.10 running on a DELL Optiplex 990 Machine. Whatever I do, the system randomly stops. Imagine you are working on a shell and randomly you won't get a prompt. Or while typing the system stops and won't return to the prompt even if CTRL+C'ed.

I got the Hardware tested. Everythings fine.

sometimes my gnome shell gets a weird bug. What I need to do then is to click e.g Ctrl + Alt + F3 When I am there i can login and then

killall gnome-shell

Then I go back to the first Ctrl + Alt + F1 (what do you call them tty1, tty2, tty3 ...

This is a repost, because no one had popper solution. What to do when gnome-shell freezes?

Everything works correctly (music is still playing etc.), just the gui freezes. I am able to ctrl+alt+f1.

What can I do after logging in the ctrl+alt+f1 terminal, in order to restore gnome-shell? If gnome-shell worked, I'd just hit alt+f2 and run r.

Hi, I searched a lot! I mean I read every single post about Gnome-shell slowness in the world wide web!!! but I couldn't find my answer.

I have this problem too. Gnome-shell responses very slowly to switch between different applications. now, I have 5 windows open: totem, firefox, terminal, and two nautilus. I'm typing here, in firefox.

GNOME 3 – The Next Generation Desktop is optimized for speed and productivity. If you haven’t installed the Gnome Shell in Ubuntu 11.10, then you must give it a try – because by default you are using the unity interface of Gnome 3 instead of Gnome Shell (Latest Version : 3.2).

In gnome shell, I can resize windows to fill one half of the screen size by dragging them at the respective border (left/right), as it's also possible e.g. in KDE.

I was working as usual with my applications but after a sudden moment (don't know how) but the applications screen disappeared and the app was still running as I was listening to music and it's icon was also shown in the top gnome bar as clear from the screenshot.

I had 4 apps opened but none appeared on the screen when I used Alt + tab.

I have Ubuntu 12.04 LTS AMD64 and GNOME Shell 3.4.1 and for some reason the Alt+F2 keys stopped displaying the Run Command Prompt when pressed.

Now, I've seen the other answers that point you to setting the keys in the

All Settings > Keyboard > Shortcuts and the Gnome Compatibility in the CompizConfig Settings Manager

and they are all set.