Ceci est une ancienne révision du document !
Q I close the laptop lid and it suspends. If I leave it for a long while, when I open the lid, it comes out of suspend okay, but I can only just see the desktop enough to get to the LogOut button, log out and log back in, then all is good again. Xubuntu 12.04, Radeon graphics.
A (Thanks to brainwash in the Ubuntu Forums) Navigate to Settings Manager > Screensaver > Advanced > Fading and Colormaps, and untick Fade to Black when Blanking, or similar wording in Xubuntu.
Q How can I stop my screen from going dark after it is inactive for a few minutes?
A Run System Settings, Brightness and Lock. Set “Turn off screen” to never.
Q After I log out, the system gets to a full screen terminal and stays that way. Only way to escape it is power button to shut down.
A You might try one of these commands:
sudo poweroff
sudo shutdown now
Q I installed Ubuntu as the only OS on my computer, taking up the entire hard drive. Now I discover that I must run a Windows program, and it doesn't work with WINE. I have a Windows DVD. What's my easiest option?
A Assuming you have a fairly modern, reasonably powerful computer, the easiest thing is to install VirtualBox, then install Windows inside VirtualBox. See issue 49 of Full Circle Magazine. Google also finds several tutorials, including this one: http://www.wikihow.com/Install-Windows-XP-on-Ubuntu-with-VirtualBox
Q I tried to start the new Sigil from the terminal and got “illegal instruction error”. My computer is based on an AMD Duron CPU.
A The Duron is a 32-bit processor, with support for MMX, 3DNow and SSE. (Each of those is a set of instructions which the CPU can run, in addition to what a standard Intel 486 can run.) It sounds like Sigil requires some additional instructions which were not implemented in older CPUs. The only way to fix this would be to get the source code and compile it with the options appropriate to your CPU.
Q I'm trying to open 2 gvims at the same time, but 12.04 does not do it. When I click on the quick-launch icon the second time, it just brings in front the first window opened before.
A (Thanks to David D. in the Ubuntu Forums) Hold down the shift key while clicking on the icon.
Q In Ubuntu 10.04, I used the utility under the Places menu to connect via SSH to my shell account on a remote server. That allowed me to simply transfer files from one computer to the other, the tool automatically doing the SFTP stuff etc. Is there an equivalent in 12.04?
A (Thanks to cryptotheslow in the Ubuntu Forums.) On 12.04, Nautilus (the default file manager) has a “Connect to Server…” entry in its File menu that gives the option to use SSH to connect to a remote server.
Q I'm a new user in Ubuntu and I want to install NS2.33 (Network Simulator) in my Ubuntu 10.04.
A Switch to Ubuntu 12.04 or one of its variants, and NS2.35 is available from the Software Center. Ubuntu 10.04 will expire in less than a year, so it's not a great way to begin using Ubuntu.
Tips and Techniques Can't boot from USB?
Yes you can! With the news that future releases of Ubuntu will not fit on a CD, some people will be worried about older computers with only a CD drive, which won't boot from USB — even though they have USB ports.
The solution is the Plop boot manager: http://www.plop.at/en/bootmanagers.html
Download the .zip file, then extract it to a known location such as Downloads. One of the files in the plop folder, which might be called plpbt-5.0.14, is a little tiny ISO, less than a megabyte. Insert a blank disc into your CD burner, and press Cancel when Ubuntu asks what you want to do. Run Brasero or K3b, or whatever program you use to burn CDRs. Select “Burn Image”. Navigate to the ISO and select it. Now you can “Burn”. The burn will take just a moment, but “finalizing” the disc will take longer.
Set your computer to boot from CD and test that Plop comes up when you restart. (I leave my computers permanently set to boot from CD [and USB], and if I happen to restart with a bootable CD – but that's not what I want – I just eject it and restart.)
Now you need a flash drive with a Linux distro on it. Ubuntu 12.10 and the rest of the family have recently been released. Go ahead and download Lubuntu 12.10 or Xubuntu 12.10. (I'm assuming that the older computer will be happier with one of the lightweight versions of Ubuntu.) If you don't have Unetbootin installed, install it. See FCM#44 for instructions about how to use Unetbootin. You will need a flash drive of at least 1 GB. Where I live, you can buy a 4 GB flash drive for under $5.
Now, insert the CD with Plop installed, and the flash drive containing someUbuntu, version 12.10. Restart the computer. I found that I needed to select HDA from the Plop menu, not USB. When I did, the computer booted from the flash drive, and I could Try it or Install it, just what I wanted.
Thanks to Roy in the Yahoo Ubuntu Linux Forum for the pointer to Plop. Don't forget to make two good backups before you install anything!