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• How and why to create -dbg, -dev, -doc packages?

  - by Nico

  I'm writing an Ubuntu package for a package which essentially provides a number of libraries and headers which then be used to build other software. The package also breaks up in smaller subpackages which are interdependent; in this sense the package is quite similar to boost. I noticed that packages like boost provide [...] libboost-dbg libboost-dev libboost-doc [...] libboost-all-dev [...] but nothing that goes by the name boost or libboost. What is the idea behind this? What are the purposes of the -dbg, -dev, and -doc packages? Are there any instructions provided on how to write build files for those packages?

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• How to create portable applications?

  - by alan

  In Ubuntu can you create a portable application and have it work on an os like suse 10.x via USB stick? I'm not sure if this can be done or not, how to do it or if it would be compatible, any advice is greatly welcomed. I need to make a portable version of Stellarium and have it work in Suse 10.x. I haven't been able portable linux versions. I'm pretty sure there can be portable versions of applications since you can run a program like TOR on it.

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• Choose at GRUB menu whether NVidia driver should be used

  - by RobinJ

  For some games, I need the nvidia-current driver, but when it's enabled, I can't get my work done as it messes up everything. So is there a way I can get two options in my GRUB menu? One wich will load my operating system with the nvidia-current drivers, and one which will use the default non-proprietary one? It seems a bit stupid to me to have 2 Ubuntu installations (one for games, one for the rest). But I can't get my daily work done with the Nvidia drivers enabled as it messes up some applications, randomly freezes the system, etc. But I still want to be able to play some games. If there's a way to just load and unload the nvidia-current driver with a script or something, that would also be welcome.

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• How do I create custom metapackages in PPAs?

  - by Nullpo

  In my university, we want to create Metapackages to provide all the software used in the differents careers, and signatures. ¿We can do this? I ask because recently I read this: "Note: We will not accept uploads of packages that are unmodified from their original source in Ubuntu or Debian, only packages that include your own changes. We ask that people include useful changelogs for each package so that users and other developers can understand what new features they are exploring in their work. Read the PPA Terms of Use for more information." https://help.launchpad.net/Packaging/PPA/Uploading Basicly we don't want to change the source code of the package, we only want to do a "compilation".

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• What data counters / meters are available?

  - by Santosh

  Actually I have a wireless 3G modem that works well on Windows based operating system, its interface software were made Windows centric. It can still connect to internet on Ubuntu or other linux based operating system but it won't show the data counter (the interface which shows how much data has been transferred, at what speed). If I continue to surf internet in Linux then I won't have any idea how much data has been used and it would become heavy on my pocket. So I just want a software that let me know how much data has been transferred, if there is a limiter; that warns or disconnects me when I reach predefined MBs then its better. Please let me know if there is any software or script or something like that already there.

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• "Waiting for Sound System to respond." error dialog

  - by Paulo Truta

  Hello guys. I'm having a nasty problem with the Sound Menu on my Ubuntu 10.10 Installation. What happens is that the sound control icon is blocked, and i can't control the master volume. If i try to get to the Sound Preferences i get a little Pop-Up Window saying: "Waiting for Sound System to respond...". Don't know what to do... Apart of that, sound works great. Thanks a lot ;) PS: I made 2 screenshot uploads. Hope it helps.

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• Graphics system failure

  - by anonymous coward

  I just upgraded two versions of Ubuntu to Oneiric after a recent set of updates broke Audacious 2.4.something in Maverick for me. When it was all finished my Asus Eee 1215N with the 1366x768 screen and the notoriously unsupported Nvidia Ion2 Optimus chipset was working on minimum compatibility fallbacks at 1024x768 resolution. So I did a little bit of reading (not enough) and tried deleting a couple parts of the graphics system to see if I could force a retry on the autodetection. The result: No graphical shell works now. Attempted so far: -reinstalling xorg/nouveau, didn't work. -installing bumblebee/nvidia-current, didn't work. -sudo dpkg-reconfigure -phigh -a, didn't work. I'd like to stress that this is otherwise a perfectly functional installation that I had spent some time setting up already (including a successful compile of Audacious 3.21 that was working with all the plugins). Is there a way for me to rebuild the graphics system from scratch or should I just give up, cry a little, backup data, wipe partition and reinstall with a USB drive?

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• red screen after login

  - by cole

  so i just put ubuntu onto my computer and the install went ok. but it keeps giving me a language error in the login screen. i so far have just ignored it. but when i log in it just goes to a blank red screen. idk what to do to fix this. i can boot it into safe mode and it loads the desktop but it is very slow. i do not have an internet connection at the moment for this computer. i have 12.10 on it.

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• Screen split oddly when OS is installed from a Live CD

  - by Brian

  Never used Linux before but I decided I want to start somewhere and Ubuntu seemed like the right place to start. I burned the 64bit version ISO onto a CD and installed it onto a fresh new hard drive I have. The Live CD works and the Live Distro thing works great. However when I attempt to install it, the screen splits oddly in a way where part of the right is on the left. Furthermore, after attempting to log in, the GUI doesn't show up and the computer would freeze and stay that way. However you can still move the cursor. I can't really get in or do anything (possibly because I don't know how) and tinker around since I am not too tech savvy. But I can follow instructions. Graphics Card Radeon hd 6670 I just tried the install with windows thing. There was the exact same problem.

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• Wireless connection shows up but can't connect to internet with an Intel WiFi Link 5100

  - by Eddy

  I'm using an Asus G50V and I'm completely new to ubuntu. I just installed it and can connect to the internet with a wired connection and through wireless from my windows vista that I installed wubi on, and I can connect to my wireless network, but I can't actually connect to the internet through my wireless network. Thanks in advance. Network controller is an Intel Corporation WiFi Link 5100 according to lspci if that helps Also, the connection somehow started working after I decided to unplug my ethernet cable for the third time and headed upstairs after giving up for the day.. not sure how it happened, but after restarting, the connection stopped working again.. Wifi works on 11.10, but stops working when I upgrade back to 12.04..

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• Zoom out recursively for all the folders

  - by Chaitanya

  I want to reduce the icons size in all the folders. In ubuntu 11.10, version, there is an option to decrease icons size and I changed there, and all the icons size is reduced recursively. I am using 11.10 version now. Here, whichever folder I open every time I need to zoom out.(I want zoom out). If I have 20 recursive folders, I open each and every folder and right click there and zoom out. Do we have any global command or grapical tool to reduce the icons size in all the folders. I was told that unity will do this work but I am confused how to use it. If unity is the only solution, please guide me where to change the size. Thanks a ton, Thanks, Chaitanya.

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• Where do I add boot parameters to use ks.cfg

  - by user10822

  Hi, I created a kickstart file ks.cfg and then I have put that in the bootable disk*(Ubuntu 10.04)* and then added the following line to the isolinux.cfg linux ks=ks.cfg and have not removed any other lines from the isoconfig.cfg file and then while installing the installation is not automated, again it is asking for language and all. If i removed include menu.cfg or any other line from isolinux.cfg i am getting a boot error. What should i do now to automate the installation.Where should i add the boot parameters so that installation will start from the ks.cfg . Thanks and Regards Ravi Kumar

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• I removed nvidia driver and lshw -c video still shows nvidia

  - by sinekonata

  Today I tried to activate the newer experimental drivers and both 304 and 310 failed to even install. So I tried the regular nvidia driver 295.40 for the 20th time today (I had lag issues and was testing Nouveau vs Nvidia with dual monitor and Unity2D-3D) Within my tty1 I tried to remove nvidia: sudo apt-get remove nvidia-settings nvidia-current and purge too reboot, nothing. So when lshw -c video displayed nvidia as my driver I tried sudo rm /etc/X11/xorg.conf since I read ubuntu would "reset" the GUI conf but reboot, nothing. So next I tried sudo jockey-text --disable=xorg:nvidia_current And nothing has worked...

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• Would installing debugging symbols help for reporting bugs?

  - by Chris

  I'm running a beta version of Ubuntu (12.10) and I've been reporting crashes through apport's automated system. I've glanced at the stacktraces for a couple of the issues and noticed a lot of what look like hex addresses and these: "No symbol table info available." I was wondering if installing the debugging symbols packages from synaptic would provide better information to package maintainers when I report bugs. In other words, would the stacktrace be more useful if I installed those packages? If so, would installing those packages make any (noticeable) performances differences (will my computer run slower)? Thanks, Chris

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• how do I go about removing all the language packs I don't need

  - by knotech

  I just noticed that in /usr/share/help I have the ubuntu help files in 70 different languages. I only speak 2, and I only really compute in one. I also noticed that it is full of broken symbolic links to /usr/share/help-langpack. I want just want to get rid of all the languages I don't need. How can I do this without getting all rm -r happy? I'm preferably looking for a way to do this without installing any new packages, as my main goal is to get rid of excess stuff on my machine. I'd like to find a way to do this preferably with dpkg, or apt.

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• Will the new Unity desktop be programmed in Qt?

  - by Brian Fleeger

  Will the desktop version of Unity, scheduled to appear in 11.04, be programmed using Qt? I ask this in relation to Matt Zimmerman's blog posting of several days ago, where he intimated that Qt was the more pragmatic choice for an SDK to get coders more involved. As a corollary, it would make sense if the whole desktop were in Qt, which would also make it possible to do a lot more beautiful effects, and make a more visually engrossing desktop experience. In any event, please elaborate on the future role of Qt in the Ubuntu desktop.

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• How to fix corrupted desktop icons and fonts?

  - by David Harvey

  I love Linux, but am a real novice. I installed Ubuntu 12.04 LTS 32bit alongside Windows XP. The installation seems to work just fine except for the desktop. The icons & font becomes corrupted to the point that it looks like Chinese. After surfing with Mozilla Firefox for a long time, the same problem begins with the web pages. I want to be free of Windows, but must solve this problem first. Can you help? Thank you.

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• Is it possible to print to a Brother MFC-490CW that is conected to a LAN

  - by Johan Poelsma

  I have a Brother MFC-490CW printer that is connected to my LAN (wireless) and on which I can print with fine from Windows. From Ubuntu however, it does not seem to be possible. I downloaded and installed cups and lpd drivers from the Brother site and installed them. I get a Brother printer that says it is connected via USB. If I search for a network printer, my printer is shown. If I select it and select the correct driver, I can submit test pages. These pages are however not printed. What could be wrong. Should it really be that much harder then it is on Windows?

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• Can't install lua on 12.04 on Chrome book

  - by Anthony

  I am currently trying to install lua on my Ubuntu 12.04 on Chrome book and I keep getting this error: I'm doing good learning different programming languages (self taught) and well I wanted to start learning Lua. That error is keeping me from doing that unfortunately. I've tried doing it with and without of root access and still no success. Does anyone know what might be causing the problem or of a different way of installing Lua? Thanks a ton! Don't mind the top of the image just me taking out my frustration.

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• When creating a new text file, should I add a .txt extension to its name?

  - by Agmenor

  When I create a new document aimed at containing only plain text, I am not obliged by Ubuntu to add a .txt extension to its name. It works indeed very well: gedit opens it without problem, understanding very well that it is only text. The only two pro arguments I have found from now on for adding an extension are 1/ interoperability with Windows systems and 2/ avoiding confusion with folders having the same name. Nevertheless those two arguments do not convince me at all. As a consequence, should I keep the reflex of adding an extension to files or not?

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• Encrypt folders out of Home

  - by igi

  Is there a way to encrypt a folder, which is not in /home but even in a different partition, so only my user can access/read contained files? Alternatively, I would like to understand if it is possible to turn a complete ext4 partition into an encrypted volume, which would be mounted at user login. If possible, I would like to make the change without reinstalling Ubuntu. My PC has (mount output): /dev/sda1 on / type ext4 (rw,errors=remount-ro) /dev/sda3 on /home type ext4 (rw) /dev/sda4 on /home/igor/Personale type ext4 (rw) sda4 is the partition containing folders I would like to protect. Thanks!

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• How do I make Empathy match my keyring with my password?

  - by lisalisa

  I changed my password a few months ago from the password I first used when I installed Ubuntu on my machine. I tried to add a Google Talk account to Empathy, but every time Empathy gives me a message saying the following: Enter password to unlock your login keyring The password you use to log in to your computer no longer matches that of your login keyring. I do not remember my original password and I'm not sure if I should go to Prefrences Passwords and Keys and delete my login password or if there is a way to change the keyring so that it matches up with my current password.

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• Where do I get extra Compiz plugins?

  - by jasoncruz98

  I installed Compiz on my laptop running Ubuntu 11.10 last week. The way I installed it was kind of different, I opened up a terminal and typed this command: sudo apt-cache search compiz After that, I installed all the packages that appeared in the terminal window. I enjoyed all the effects of Compiz like Paint fire on screen, Desktop Cube, but I can't help but noticing people having some extra plugins which I don't have, such as Atlantis, Snow, Tile and much more. Where are they getting all those plugins and how do I get them?

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• How to change Shift + <Keypad Key> behavior ?

  - by LeGEC

  I am used to use the numeric keypad for navigation (e.g. : [KP7] - Start, [KP1] - End, [KP4] - Left, etc... ). I am also used to use it for selection (e.g. : Shift+[KP7] - Select from cursor position to beginning of line, Shift+[KP1] - Select from cursor position to end of line, etc...) With the keyboard configuration installed with Ubuntu, though, Shift+[KP7] prints the character "7", Shift+[KP1] prints "1", etc... How can I change this so that Shift+[KP-key] is not mapped to [key], but to Shift+[KP-key] ?

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• OpenSSL installed, but Ruby unable to require it

  - by uomoinverde

  I'm trying to setup github-pages on my Ubuntu laptop, and following the guide provided by Github I have to install the bundler package; giving the command ~$ gem install bundler returns me this error. ERROR: While executing gem ... (Gem::Exception) Unable to require openssl, install OpenSSL and rebuild ruby (preferred) or use non-HTTPS sources Then I have installed OpenSSL, launched the command to update software and stuff and tried again to install bundler, but the error kept showing. How can I fix this? Is there any specific command to rebuild ruby making it aware about the fact that openSSL is now installed?

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