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Running Ubuntu 14.04.1 and using Gedit 3.10.4

Suddenly all my open text files becames [Read Only]

How do di get them back to regular files that can be edited and saved etc...

thanks
...

Many thanks for your help and support!!

Will keep you posted....

Right - I see - I am thinking to re-install and move up to 14.04...and yes in that case I will be sure to backup my entire home folder.

That said, just out of curiosity, is there anyway to...

Ok thanks for your note - prior I was sitting in limbo...

Do you think the reinstall of the desktop will fix all the things that got affected i.e. Office Libre, Image / Document Viewer, etc etc

I will get my back-ups in place....

Ok - so is this still my next move???


sudo dpkg --purge --force-depends libjpeg8
sudo apt-get update
sudo apt-get install --reinstall ubuntu-desktop

What I really cannot afford to lose are...

here is that output - it looks like a lot of apps:


$ apt-cache rdepends libjpeg8
libjpeg8
Reverse Depends:
libcupsimage2
libreoffice-core
openjdk-6-jre
openjdk-6-jre-headless

As far as I know I never do this - only I do suggested updates via the Update Manager...

Already, I am finding more and more of my apps are not working (image viewer, simple scan, libre office etc) - I am not sure I am ready to go in deeper, unless you feel that this is all going towards...

thanks Ann...

here is that first output


$ sudo apt-get update
[sudo] password for c:
Hit http://us.archive.ubuntu.com precise Release.gpg
Get:1 http://security.ubuntu.com precise-security...

here it first output


$ run sudo apt-get update
No command 'run' found, did you mean:
Command 'zrun' from package 'moreutils' (universe)
Command 'runq' from package 'exim4-daemon-heavy'...

In follow-up I seem to have lost all my desktop wallpaper - just superficial presentation.

All programs and info are fine...

Will inform of any other things I notice.

(note: please be sure...

here is the first outcome:


sudo apt-get purge libjpeg-turbo8
[sudo] password for c:
Reading package lists... Done
Building dependency tree
Reading state information... Done
You...

Before moving ahead let me clarify. You gave me two commands. Is it the first command that might adversely affect my apps or the second.

If the first command is deemed safe I will try it right...

yes, I am running a 64-bit Ubuntu release...

here is the first output


$ sudo apt-get purge libturbojpeg:i386
[sudo] password for c:
Reading package lists... Done
Building dependency tree ...

thanks - here is that output:


$ apt-cache showpkg --installed libjpeg-turbo8
Package: libjpeg-turbo8
Versions:
1.1.90+svn733-0ubuntu4.3...

As far as I know, I have not been doing anything out of the ordinary like pinning and I am not sure of any install that would have required "libjpeg-turbo8 at a lower version from the official...

here is the first outcome


$ sudo apt-get update
[sudo] password for c:
Hit http://security.ubuntu.com precise-security Release.gpg
Hit http://us.archive.ubuntu.com precise Release.gpg ...

Thanks - bapoumba - here is what has occurred - kindly let me know if I missed anything...

OK here is the first of your three earlier requests:


$ cat -n /etc/apt/sources.list
1 # deb...

Thank you bapoumba for your support - please excuse me but I really have not idea what I installed from that ppa...

What I can offer is that my update manager broke once before and a link to that...

here is that outcome:


apt-cache policy libjpeg-turbo8
libjpeg-turbo8:
Installed: 1.1.90+svn733-0ubuntu4.1
Candidate: 1.1.90+svn733-0ubuntu4.3
Version table:
...

thanks bapoumba, & here is that outcome:


cat -n /etc/apt/sources.list
1 # deb cdrom:[Ubuntu 12.04 LTS _Precise Pangolin_ - Release amd64 (20120423)]/ dists/precise/main/binary-i386/
...

here is the outcome...


sudo apt-get install --reinstall libjpeg-turbo8
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the...

See attached

this is what comes up in Synaptic Package Manager when I do the search...

see attachment