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System is Ubuntu 14.10 desktop 64-bit with Unity.

After reboot resolution changed to some lower one and I have black frame around the picture which is centered.

When I type password on login screen and hit enter i get my wallpaper and mouse pointer but no icons, no side panel. Still can see "Ubuntu 14.10" string in down left corner. I can move mouse around.

I can use terminals under Ctrl+Alt+F1 - F6 and console via ssh. Older Ubuntu installation on other partition works fine so it is system related.

This PC is running almost 24/7 and I can't figure out what caused the issue.

I did sudo apt-get install --reinstall lightdm but problem remains.

After more searching I removed .Xauthority and .ICEauthority from home directory. Also did apt-get install --reinstall ubuntu-session but I'm still having this issue.

I'm using Nvidia GeForce 210 and NVIDIA binary driver from Additional Drivers (nvidia-331-updates).

Thanks.

Vizzard
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1 Answers1

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TL;DR:

sudo apt-get remove --purge nvidia*
sudo reboot

Then enable Unity Plugin in CompizConfig Settings Manager (must be installed of course).

========

Managed to bring back desktop.

Followed tips from here (for nvidia users) with little modification:

http://itsfoss.com/fix-unity-freezes-after-login-ubuntu-14-04/

sudo apt-get update
sudo apt-get remove --purge nvidia*
sudo apt-get install --reinstall ubuntu-desktop
sudo apt-get install --reinstall unity
sudo reboot

That gave me desktop with normal resolution, desktop icons but without top menu bar, no Launcher, no Dash. Programs could be started with command line.

Next I followed tips from here: Unity doesn't load, no Launcher, no Dash appears

compizconfig-settings-manager was installed so in terminal I typed ccsm.

After enabling Unity plugin things get back to normal but now I'm using nouveau graphics driver.

I don't know for sure but it looks like nvidia drivers issue. I followed first tips from first link (meaning without purging nvidia packages) and it didn't work.

Edit 1: Situation repeated on another Ubuntu PC with Nvidia GPU. During regular update problem with nvidia-331-updates was detected and reported. Then worked fine but symptoms described in first message appeared after reboot.

Fix: sudo apt-get remove --purge nvidia* then reboot and enable Unity plugin in CompizConfig Settings Manager.

Installing nvidia-331 (without "-updates") from Additional Drivers after that works fine.

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Vizzard
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