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107

For 11.10 and 12.10 Control-Alt-D shows the desktop for me For 12.04 ,13.04 and 14.04 Control-Super-D works for me What are Unity's keyboard and mouse shortcuts?


51

If you don't want to fill the computer up with i386 libs that you don't need. For adb you just need: sudo apt-get install libc6:i386 libstdc++6:i386 For aapt you need to add: sudo apt-get install zlib1g:i386 You can see all the libs needed for an executable by running: objdump -x .../adb | grep NEEDED Some guesswork and searching is still needed to ...


50

Try to create a eclipse.desktop file under /usr/share/applications (or ~/.local/share/applications or directly in ~/Desktop) with the following content: [Desktop Entry] Encoding=UTF-8 Name=Eclipse IDE Exec=/path/to/eclipse/executable Icon=/path/to/eclipse/icon Type=Application Categories=Development; You can choose another category, too. For additional ...


40

You should put that line after the line with the rule for the admin group, because, as the sudoers man page states: When multiple entries match for a user, they are applied in order. Where there are multiple matches, the last match is used (which is not necessarily the most specific match).


39

There are two sets of packages for MongoDB; the standard Ubuntu packages, and a set published by 10gen themselves. The standard packages are out of date, especially for older releases of Ubuntu, so it is probably a good idea to set yourself up to install from the 10gen repositories. The error message you quote suggests that you might have already tried ...


36

This is apparently managed at the system level. Go to the Language Support menu in the System menu and add the languages you want to support. After that restart LibreOffice and you will see that the spellchecker for example will give you the option of using the newly installed languages.


32

To use gtk2 or gtk3 apps you don't need to install anything. But, if you want to develop (or even just compile) apps this is what you're looking for: sudo apt-get install libgtk-3-dev


32

sudo apt-get install cryptkeeper                                 After installing, go to Applications –> System Tools –> Cryptkeeper.                                         Cryptkeeper will automatically attach itself to the top panel                                          To create an encrypted protected folder, click on Cryptkeeper applet and ...


31

Table of contents: Terminology Converting Configuring (+ Dual boot) Terminology BIOS = Basic Input/Output System (U)EFI = (Unified) Extensible Firmware Interface MBR = Master Boot Record GPT = GUID Partition Table UEFI / EFI / BIOS = Firmware interface MBR / GPT = How the computer knows (per hard disk) what partitions are on the drive and how to ...


30

The message "no such file or directory" is displayed because there is a missing shared library. You can see these with the ldd command: ldd /home/fenfei/app/android-sdk-linux/platform-tools/adb Probably you are missing the 32 bit libs. You have to install: apt-get install ia32-libs On Ubuntu 13-10, ia32-libs is no longer available; instead, install the ...


29

**First need to install the restricted drivers for access to aticonfig I had the same problem. Run sudo aticonfig --initial, to re-initialize your configuration files. Now I'm not sure if restart was necessary here or not. Now run 'sudo amdcccle' and you'll be able to configure dual display. Go to Display Manager and choose Multi-display desktop with ...


29

This is a deliberate change in behaviour (source): As of Ubuntu 11.10, update-manager no longer prompts for the user's password to apply updates. This was decided to improve usability and to make it easier for users to apply security updates and therefore increase system security. The rationale is as follows: Like in previous releases, by ...


28

dir and ls are part of coreutils and dir is an alias. The GNU Core Utilities are the basic file, shell and text manipulation utilities of the GNU operating system. These are the core utilities which are expected to exist on every operating system. info dir says: dir is equivalent to ls -C -b; that is, by default files are listed in columns, ...


28

You probably want to display subtitles below the picture on the black surface? By default you can only position subtitles inside the picture. That is why when you were experimenting you could not place the subtitles below the picture. But still there is a way to do what you want using Cropadd video filter. How to show subtitles under the video in VLC ...


25

I had the same problem. To fix this. Go to your network connections. From there click on wireless tab. Choose your connection and then click the edit button. Make sure your password is entered then click on the wireless security tab. Then check the box in the bottom left corner that says available to all users. This is what fixed the problem for me.


24

I was having the same problem on my laptop, getting the magenta blank screen. Here's what worked for me. I changed: GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true to: GRUB_HIDDEN_TIMEOUT=10 GRUB_HIDDEN_TIMEOUT_QUIET=false And since I didn't have a CRT, instead I changed: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to: ...


24

Go to the Startup Applications, by Clicking right-top corner Settings icon ---> Startup Applications. The click on the Add button, Write a name for this operation such as "Mount ntfs drives", then in command input box, write this udisks --mount /dev/sda2, to automount the ntfs partition. Note: You need to replace the /dev/sda2 with your actual NTFS ...


22

You can do it. You can use Ctrl+Alt+Shift+Arrow key to move programs from one workspace to another. I also made a fancy-smancy video showing you how its possible to drag windows between workspaces.


22

I found a hint to the solution in Ubuntu Forums, where a user sent a link to Gnome Developer Center explaining the configuration for Gnome Shell. My solution explains what to do for Unity. You will need to install dconf-tools if you don't have it yet: sudo apt-get install dconf-tools Then run the tool (for example, pressing Ctrl+F2, then typing ...


21

You use a lens to look at the data returned by a scope. For instance, you have one single music lens, which uses different scopes to display its results: local music, music in the Ubuntu One Music Store, music from the Amazon MP3 Store, etc. The main idea is that there can be lots of different, but very similar, data providers. The scope is used to make ...


20

Gnome has not been removed from 11.10. Unity in 11.04 is based on Gnome2, and in 11.10, on Gnome3. The Gnome you are familiar with (aka Gnome2) is no longer supported by the Gnome Foundation - the decision that has nothing to do with Unity. If you want to try Gnome3's default shell, install the gnome-shell package. If you wish to keep using Gnome2, your ...


20

The problem is that the default-jre package depends on OpenJDK 6 and most other packages have their dependencies defined as default-jre | openjdk-6-jre | sun-java6-jre - so until OpenJDK 7 becomes officially supported and will be used as the default version, or until all Java-dependent packages update their dependencies, you'll have to keep OpenJDK 6 around ...


20

You need to install the python-boto package.


20

If you hold down Alt the Suspend option becomes "Power Off". Edit: Although I should add that I use gnome-shell and I prefer to use an extension to add the power off option to the menu without having to hold alt. Webupd8 offers the "Alternative Status Menu" extension which adds Power Off and Hibernate options to the menu permanently. Edit2: There is ...


19

I was able to fix this myself by removing the file ~/.Xauthority. For the record, you can find startup logs for LightDM under /var/log/lightdm - from there I was able to see that LightDM was getting stuck on something in that file, so I renamed it and was able to successfully log in.


19

Gnome-shell uses recently-used and not Zeitgeist to display your recent items. to disable it follow theses steps: delete recently-used.xbel: rm ~/.local/share/recently-used.xbel create a new empty file: touch ~/.local/share/recently-used.xbel make sure the new file cannot be modified: sudo chattr +i ~/.local/share/recently-used.xbel now, your ...


19

There is a tool in the repositories that changes LaTeX to openoffice.org's XML format: tex4ht TeX4ht is a highly configurable TeX-based authoring system for producing hypertext. It interacts with TeX-based applications through style files and postprocessors, leaving the processing of the source files to the native TeX compiler. Consequently, TeX4ht can ...


19

Easy! sudo dpkg -L packagename. That will list all files (with location) that were brought in by the package.


18

In my opinion most important reason is that most of the programs on Windows are registry dependent. Registry is arguably a well organized storage, however it is not known to be a very efficient one. When you first install Windows, registry size is small and look up operations are inexpensive; however as you install more and more programs registry gets ...


18

You can use the at command to schedule any action, including running the commands detailed in that question. For example, if you want to hibernate in 30 minutes: echo 'pmi action hibernate' | at now + 30 min Or if you want to suspend at 11:00 pm: echo 'pmi action suspend' | at 11pm If you need to run a command as root, run at with sudo rather than the ...



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