Ceci est une ancienne révision du document !
Q When I replaced 32-bit Ubuntu with 64-bit, the amount of available RAM decreased by 100MB (went from 3.9GB in 32-bit to 3.8GB in 64-bit). Why?
Q : Lors de mon passage de la version 32 bits a la version 64 bits d'Ubuntu, la quantité de mémoire vive (RAM) disponible a diminue de 100 Mo (passée de 3,9Go en 32 bits à 3,8Go en 64 bits). Pourquoi ?
A The computer's video adapter steals RAM, and the amount increased from 128 MB to 256 MB.
R : La carte graphique utilise une partie de la RAM, et cette quantité est passée de 128 Mo à 256 Mo.
Q My computer has a 250 GB HDD. If I look at Disk Usage Analyser, it tells me the total filesystem capacity is 244 GB, but if I look at System Monitor it tells me the total is 227.3 GiB.
Q : Mon ordinateur possède un disque dur de 250 Go. Lorsque je lance mon analyseur d'utilisation des disques, celui-ci me dit que la capacité totale est de 244 Go, mais si je regarde du côté du moniteur système, celui-ci m'indique que le total est de 227,3 GiB.
A 244 GB = 227 GiB. You can try it yourself: 227.3 x 1024 x 1024 x 1024 = 244 GB. Marketing people want the bigger number.
R : 244 Go = 227 Gib. Vous pouvez essayer vous-même : 227.3 x 1024 x 1024 x 1024 = 244 Go. Les commerciaux ne montrent que le nombre le plus grand.
Q I'm using ripperx, but the only options that are offered are for mp3 and wav. How can I use this to rip into flac?
Q : Je suis en train d'utiliser ripperx, mais les seules options proposées sont pour le mp3 et le wav. Comment puis-je l'utiliser pour ripper du FLAC ?
A Install the flac package with Synaptic, then open ripperx and hit the Config button; under the mp3 tab, change the Encoder plugin to Flac.
R : Il faut installer le paquet « flac » avec Synaptic, puis ouvrir ripperx et cliquer sur « Configuration ». Sous l'onglet mp3, changer le plugin d'encodage en Flac.
Q When I ran a script, it stopped at this line:
mdb $(echo 'hostname') return site > _temp.out
Q : Lorsque je lance un script, il s'arrête à la ligne suivante :
mdb $(echo 'hostname') return site > _temp.out
A Mdb is the Mono debugger, which wants input from the keyboard. You have directed the output to a file, so you can't see what it wants.
R : Mdb est le Mono Debugger, qui attends une saisie du clavier. Vous avez redirigé la sortie vers un fichier, vous ne pouvez donc pas voir ce qu'il veut.
Q How can my Dell Dimension 2350 boot from USB?
Q : Comment faire démarrer mon Dell Dimension 2350 via USB ?
A Plop Boot Manager will fit on a floppy, and can chain to a bootable USB device. http://www.plop.at/en/bootmanagers.html
R : Plop Boot Manager tiendra sur disquette, et peut faire le lien avec un périphérique USB. http://www.plop.at/en/bootmanagers.html
Q Can I run Ubuntu with no hard drive at all?
Q : Puis-je lancer Ubuntu sans disque dur ?
A Yes, you can use a LiveCD or a LiveUSB. You could even install Ubuntu to a flash drive, and run from that.
R : Oui, vous pouvez utiliser le LiveCD ou un LiveUSB. Vous pouvez même installer Ubuntu sur une clé USB et le lancer à partir de celle-ci.
Q I finally have TVTime working on my AMD64 machine. However, Update Manager keeps suggesting a later version, which does not work for me. How can I force the system to stay with the currently installed version?
A Install Synaptic Package Manager. Run Synaptic, and search for TVTime. Click on the package, and select, “Lock Version.”
Q What is going on with Sun Java 6?
Q : Que se passe-t-il au sujet de Java 6 de Sun
A Have a look at this site: http://www.ubuntugeek.com/install-sun-java-6-in-ubuntu-11-10-using-ppa.html
However, it is probably better to install OpenJDK Java 7, which includes icedtea-plugin and openjdk-7-jre. See http://www.futuredesktop.org
R : Jetez un coup d’œil à ce site : http://www.ubuntugeek.com/install-sun-java-6-in-ubuntu-11-10-using-ppa.html Cependant, il vaut probablement mieux installer OpenJDK Java 7, qui comprend le plugin icedtea et openjdk-7-jre. Voir ici http://www.futuredesktop.org
Q How can I get a list of computers on my network?
Q : Comment puis-je obtenir une liste des ordinateurs présents sur mon réseau ?
A If you have Samba installed, you can use the command: smbtree
R : Si Samba est installé, vous pouvez utiliser la commande : smbtree
Q When I try to reduce the brightness on my laptop using System Settings, it doesn't change.
A Open a Terminal, and enter this command: xgamma -gamma .5 You can try different values than .5, to see what works for you.
Q In Kubuntu 11.10, when I try to run Software Update, I get the message that another package manager is running.
A The magic incantation: sudo dpkg –configure -a sudo apt-get install -f Reboot, and run Software Update.
Q I occasionally need to build something from source (I'm sure we all do), for whatever reason. I'd like to have these programs show up in Unity's dash search, like apps installed from the Software Center.
A (Thanks to stinkeye in the Ubuntu Forums) If you add it to alacarte (main menu), dash will pick it up. You may need to install alacarte.
Q I have a Toshiba Satellite L645D. Whenever I hit the power button, it immediately bounces directly into loading Ubuntu; how can I boot from CD?
A (From the Original Poster) Apparently, pushing F2 needed to begin BEFORE the power button. Gord adds: on other computers, the magic key is ESC, DEL, F1, F2, or F12.
Two Tips and Techniques Move forward soon!
I see a lot of people who have major problems when they are using an elderly version of Ubuntu.
A lot of hardware has appeared since the last Long-Term Support release, Ubuntu 10.04. It's not realistic to expect this hardware to be supported by an operating system which predates it.
Even with hardware from before then, there may be issues. For example, Ubuntu 10.04 (and previous versions) often didn't switch between built-in speakers and earphones properly. For many sound adapters, the problem has been solved in later versions.
As this appears, we are a month away from another Long-Term Support release, Ubuntu 12.04. I'm going out on a limb here, and suggest that everyone should install the latest version, certainly by mid-summer. Some people don't want to deal with the Unity user-interface. They have options: Kubuntu 12.04, Lubuntu 12.04, Xubuntu 12.04, or Linux Mint 13.
If you don't know what to do, plunk down $6 (or equivalent) for a 4 GB flash drive, download some of those versions, and see which one tickles your fancy. The only option which is unacceptable, is sticking with an obsolete OS.
Everything you know about drivers is wrong
“My computer does not have Internet access. Can I download drivers to my stick on an Internet machine and then load them on the Linux system?
“Where would I go for drivers after I get the basic load to work?”
Most of what you know about drivers no longer applies. However, it's one area where it's a lot easier if you have an Internet connection.
Most drivers come along with the kernel. Let's talk about four kinds of drivers: video adapter, WiFi adapter, printer, and webcam.
For the first two, people normally run a program called “Additional Drivers,” which will tell them if there are video or WiFi drivers available to install.
WiFi is a special case: many adapters are supported “out of the box,” no need to install a driver. Others have a driver two clicks away in Additional Drivers (assuming an Ethernet connection to the Internet,) some need the Windows driver under something called NDISWrapper, and some will never work. If the first two options don't work for you, get busy with Google.
Printers: when I install any recent version of Linux, I turn on my network printer and run a program called “printers,” and click on “add.” A couple of clicks later, it scurries off to the Internet and installs the appropriate driver, and the printer works. Barring that approach, you go to the manufacturer's web site and collect the Linux driver, along with other required software. PITA.
In my experience, webcams either work or they don't. My specialty is cheap webcams purchased in China, and they have all worked for me “out of the box,” except with Ubuntu 10.10, which required an unusual incantation.
Oddly, some of the nastiest driver issues are with hardware which was on the drawing board last week. Even something as simple as an Ethernet adapter might not be supported until it has been around for a few months, and all you can do is wait for it. (Or plug in an older Ethernet adapter in the short term; they're cheap.)