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38

That particular error message may indicate that you have held packages, but it may also indicate a different problem. You can get a list of actual held packages with: dpkg --get-selections | grep hold If there are none, or none look related, then it's probably something else. Check carefully the output of the command you were trying when you got the ...


34

the ulimit command by default changes the HARD limits, which you (a user) can lower, but cannot raise. Use the -S option to change the SOFT limit, which can range from 0-{HARD}. I have actually aliased 'ulimit' to 'ulimit -S', so it defaults to the soft limits all the time. alias ulimit='ulimit -S' As for your issue, you're missing a column in your ...


33

You have to change the computers hostname as well. Edit the hostname file and replace the name gksudo gedit /etc/hostname also change the name in hosts gksudo gedit /etc/hosts Leave the other stuff there untouched. For the username, it would be cleaner if you deleted the old user and created your new one.


31

The nginx: unrecognized service error means the startup scripts need to be created. Fortunately the startup scripts have already been written. We can fetch them with wget and set them up following these steps: # Download nginx startup script wget -O init-deb.sh http://library.linode.com/assets/660-init-deb.sh # Move the script to the init.d directory ...


28

Switch off google-musicmanager and uninstall it. Go into ~/.config/ and delete the folder google-musicmanager/ from there. Reinstall and run it again and this time, choose an empty directory to upload music. Then the bug will not be there anymore. I found this workaround on ubuntuforums.org.


28

It's in gsettings (& dconf-editor), to do from cli use gsettings set org.gnome.desktop.background show-desktop-icons false From gui open dconf-editor (install dconf-tools) as in screen


28

To repair the Grub bootloader, try these steps. 1 - Live CD First, you'll need to boot from a Ubuntu Live CD. 2 - Repair the bootloader Open a terminal from the Live CD, and run the following commands: sudo add-apt-repository ppa:yannubuntu/boot-repair sudo apt-get update sudo apt-get install -y boot-repair boot-repair After a few seconds, Boot ...


28

1) It is NOT about how hard you push the mouse cursor to the screen edge, but how far you push it. To be able to reveal the launcher, you must continuously push the cursor against the edge to reveal it. 2) To fix the launcher reveal sensitivity: a. Install then start "CompizConfig Settings Manager" b. Navigate to "Desktop" -> "Ubuntu Unity Plugin" -> ...


27

12.04 and 12.10 are two different releases. They're named based on the date (April and October of 2012, respectively). 12.04 is a LTS which means it is provided security updates for five years without needing to upgrade to a newer release. Note that these updates do not upgrade everything to the latest version and non-security updates are only pushed back ...


27

Actually, I Know Which File Is Corrupted Trying to combine files from multiple corrupted ISO images into a single, good ISO image is not a good approach to this problem. Here's why. Almost all the data in the ISO image belongs to just one file, casper/filesystem.squashfs. On an Ubuntu desktop CD or DVD ISO image, that is. On a server CD image or alternate ...


26

Go to System Settings...Brightness and Lock: The default screensaver idle time is 10 minutes, and the screen is locked once the screensaver activates: You can adjust the idle time (or disable the screensaver), and also disable the lock: Simply close Brightness and Lock to apply the new settings.


26

VMWare Workstation doesn't ship in a deb, so it isn't registered in dpkg (which is why you can't find it in the software center). It does have an install and uninstall utility though. To uninstall VMWare Workstation, you will need to run vmware-installer --uninstall-product vmware-workstation If you just run vmware-installer by itself, it will print ...


25

This seems to be a bug in 12.04.2. As stated in comments, a simple fix would be unloading the mouse driver and load it again like this: sudo modprobe -r psmouse sudo modprobe psmouse proto=imps This only keeps the touchpad working on this session. To make it permanent one can create a file like /etc/modprobe.d/psmouse.conf (you can choose the name you ...


24

openDKIM and Postfix on Ubuntu Server 12.04LTS I'll try to come back and format this better. But since there was a request to post my answer, I wanted to post it now rather than wait until I had time to format it properly. Due to lack of time, I wrapped my entire answer in a blockquote. I hope this solution is helpful. These are my references: man ...


24

Having the same problems with f.lux and there doesn't seem to be any fix for this right now. But Redshift seems to work fine on Ubuntu 12.04. gtk-redshift in Ubuntu Software Centre


23

Is it a bug? No, it's deliberate: gtest (1.6.0-1ubuntu2) precise; urgency=low * Stop distributing static library (although still build it, to ensure gtest works). Upstream recommends against shipping the libary at all, just the source. (See: http://code.google.com/p/googletest/wiki/FAQ) The Debian maintainer plans to do this also (see ...


23

You need library ncurses 32 bit version installed in your system sudo apt-get install libncurses5:i386 In addition to libncurses5, you may require libstdc++6. sudo apt-get install libstdc++6:i386 With the command sudo apt-get install ia32-libs You install a lot of libraries that is not useful to solve your problem.


23

In 12.04, the switcher defaults to those windows co-located on one workspace/viewport. You have a couple of options in ccsm You can untick the bias option which will show windows in all workspaces. Alternatively, you can use add CTRL to your ALT+TAB to achieve the same effect


23

You can type in the terminal: cd /home/myUser/some/long/path/to/a/directory An then nautilus . This will be open nautilus in the folder /home/myUser/some/long/path/to/a/directory (the period is the current directory) Or in the Terminal just type: nautilus /home/myUser/some/long/path/to/a/directory Regards.


22

sudo doesn't read password from stdin by default. From sudo manpage: -S The -S (stdin) option causes sudo to read the password from the standard input instead of the terminal device. The password must be followed by a newline character. So you should run: sudo -S apt-get update <~/passwd.txt Keep in mind that storing passwords in files is not ...


19

Here is the way I did it on Ubuntu 13.04 (Raring Ringtail): sudo add-apt-repository ppa:pi-rho/dev (source) sudo apt-get update (freshens the cache/database of packages) sudo apt-cache show tmux (*optional, shows you available versions, 1.7 & 1.8 should be listed) sudo apt-get install tmux tmux -V


19

xulrunner is no longer available in the repositories for 12.04, but it's very easy to install the latest versions provided by the Mozilla Foundation here. Since these xulrunner releases are self-contained, we'll put them in the /opt directory. Open the terminal with Ctrl+Alt+T Type cd /opt The below steps will automatically download the appropriate version ...


19

There are few options: Screenlets Screenlets are the Linux alternative for "Windows Gadgets". Screenlets are small owner-drawn applications (written in Python) that can be described as "the virtual representation of things lying/standing around on your desk". Sticky notes, clocks, rulers, ... the possibilities are endless. Hare's a preview of a weather ...


19

Apache sudo update-rc.d -f apache2 disable MySQL sudo nano /etc/init/mysql.conf Comment out (using a hash sign) the start on section - and this section only! If it spans multiple lines, add a hash sign to each line. For example: #start on (net-device-up #and local-filesystems #and runlevel [2345])


18

Skype is working very well on Ubuntu 12.04 64 bit version (using it right now). How to: Go to Software Sources, click on second tab Other Software and mark Canonical Partners and Canonical Partners (Source Code). Open your terminal and add the following command sudo apt-get update. After the update is completed please type sudo apt-get install skype. ...


18

GNOME 3.4 uses gsettings for the keyboard shortcuts while Ubuntu still uses gconf for the keyboard shortcuts. Because of this, there is no easy way to enable the native shortcuts for gnome-shell. If you really want to use them, you need to manually enable them in order for them to work. For terminal's keyboard shortcut, search for Keyboard in the ...


18

Rhythmbox is not a canonical product so I don't think canonical can do anything about it. If you need a feature may be you can request feature to rhythmbox developers. If you are talking about third party plugin called 10 Band Equalizer. What you can do is create a folder called plugins in $HOME/.local/share/rhythmbox and download the plugin and extract ...


17

Unfortunately, hibernation has been disabled by default in Ubuntu 12.04, because it wasn't working correctly on many systems. If you are not sure if hibernation works with your hardware, you can test it by sending the hibernate command from your Terminal sudo pm-hibernate Here's how to enable it anyway: (warning: only for advanced users — might not work) ...


17

Workaround on Ubuntu 12.04 LTS Note This workaround requires a working launcher for your Wine application. Here's a tutorial on how to create one. The workaround also applies to applications installed with PlayOnLinux scripts. Instructions Open your .desktop launcher in your favorite text editor and append this line to the file: ...


17

It controls the mouse behaviour at the edges between monitors in a multi-monitor setup: If "Sticky Edges" is enabled the mouse stops on the edge. See bug #965080 if you think this should be more obvious.



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