Hot answers tagged

158

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?


73

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


66

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 ...


55

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 ...


55

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 The standard packages are out of date, especially for older releases of Ubuntu, so it is probably a good idea to set yourself up to install from the 10gen repositories.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 this,...


49

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).


47

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.


46

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 1)...


41

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.


39

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 ...


34

Try removing /home/your_user_name/.config/monitors.xml, that should fix it.


32

Notice: If you are using Ubuntu 14.04 and later, Don't forget to check the note at the end of the answer 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 /...


32

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 ...


31

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.


30

**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

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 dconf-...


28

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


27

Run this command in Terminal (Ctrl+Alt+T): sudo apt-get install mysql-workbench mysql-workbench


27

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 ...


27

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: ...


26

Once the image is opened you can right click on it and choose to open with Shotwell Image Viewer. It will open up a new window where you can crop/edit the image and save it. Once saved you can close the 2nd window and see the changes in the default image viewer. Alternatively you can set Shotwell Image Viewer to be your default image viewer.


24

There is a keyboard layout plugin for xfce - xfce4-xkb-plugin. Install it, if it's not installed, then add it to the panel. Right click its icon and add the layouts you want. To configure only keyboard shortcut use: setxkbmap -option grp:switch,grp:alt_shift_toggle us,ru


24

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 ...


23

This works for me on 13.04, both mute and unmute: amixer -D pulse set Master 1+ toggle It specifies pulse audio to ensure unmute, unmutes everything.


23

Ok, I will answer my question :) I've found that pam_unix module performs password complexity check and it can be configured. man pam_unix: minlen=n Set a minimum password length of n characters. The default value is 6. The maximum for DES crypt-based passwords is 8 characters. obscure Enable some extra checks on password ...


23

In evince you can use File --> Open a Copy to open another window showing the same file.


22

The Toolchain test builds PPA contains many packages including gcc-4.7. You can add the repository using sudo add-apt-repository ppa:ubuntu-toolchain-r/test Then, to install it use sudo apt-get update sudo apt-get install g++-4.7 To change the default compiler use update-alternatives sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4....


22

Click on the cog well on the top right corner of your screen and choose Startup Applications..., click on Add and on the name field write Skype, on the command field write skype. Log off and back in and skype should be loaded.


22

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 ...


22

There is pyNeighborhood which is a gui for mounting samba shares and available in the software centre for download. There is a good article located here on how to set it up and use it. Alternatively the basic terminal command is mount -t cifs -o username=USERNAME,password=PASSWD //192.168.1.88/shares /mnt/share Have a read through the Samba documentation ...



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