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My Ubuntu 12.04 was normally updated through the Update Manager, something about gtk. Then I rebooted and now all that shows after the splash screen is a blue screen that only shows the cursor.

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4

I experienced the same issue. After a lot of painful efforts, solved the problem in my box.

Doing the below steps fixed the problem in my machine:

* press ctrl+alt+f1 and login as root in the tty1
* cd /usr/lib/*arch-name*/gdk-pixbuf-2.0/
* find *some-version-number*/loaders/ > ~/pixbuf-files
  *(not the pkg-version,try ls cmd,only one dir would list out)*
* vim ~/pixbuf-files and delete 1st line
* cat ~/pixbuf-files | xargs -n1  gdk-pixbuf-query-loaders > *the-version-number-in-step-3*/loaders.cache 
* reboot

in my case: 

* press ctrl+alt+f1 and login as root in the tty1
* cd /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/
* find 2.10.0/loaders/ > ~/pixbuf-files
* vim ~/pixbuf-files and delete 1st line
* cat ~/pixbuf-files | xargs -n1  gdk-pixbuf-query-loaders > 2.10.0/loaders.cache 
* reboot
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  • last command fails with xargs: gdk-pixbuf-query-loaders: No such file or directory. please help! – Karl Frisk Mar 19 '14 at 16:45
  • OK, you just have to make sure that it is installed: apt-get install libgdk-pixbuf2.0-dev – Karl Frisk Mar 19 '14 at 17:05
  • Thanks for the reply, but the problem is that I am very new to gnu / linux and i do not understand anything you say about how to solve the problem. Is there any way to report this problem to canonical? – user259302 Mar 19 '14 at 21:51
  • Wow such a great answer! My apt-get installation failed with suggestion to run another command (I believe it was with flags - - configure - a) after this completed, i was able to install libgdk package and was able to run the last command. Afterwards reboot worked perfectly – RLaaa Sep 29 '17 at 4:15
  • Just to clarify the command is 'dpkg - - configure - a' – RLaaa Sep 29 '17 at 4:23

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