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• How do I set the root password so I can use su instead of sudo?

  - by Zignd

  Warning: Directly logging in as root is like playing with fire, because one little typo is enough to lose critical data or make your system unbootable. Note that desktop environments will also function incorrectly if you login to them as root. See these questions for the reasons behind why sudo is preferred and why root-login is disabled by default: What are the benefits of sudo over su? Why is there no option to login as root? Instead of letting you set a password for root during install Ubuntu set it to * for no password and disables the actual account login, however even with this being said you can still use root in ubuntu by sudo. So how to set a root password on Ubuntu?

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• Intercepting the Unity logout

  - by qbi

  I want to copy some data from another machine to a local computer on a regular basis. At the moment I'm researching different solutions and try to find the one which fits best. Basically I want to open a network connection (or use an existing one), make a VPN connection and start a rsync process. This should be done on every logout of my desktop session or on shutdown. One possible solution might be to somehow intercept the Unity shutdown and execute a script. So is there a possibility to execute a script on GNOME/Unity shutdown? I'm aware that you can do it on system shutdown. How can I do this?

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• GeForce8800 ultra

  - by Gunnar

  I have been running Ubuntu 10.04 with GeForce 8800 Ultra graphics card without any problems for many months until a few days ago, after some updates, everything stopped working. Can't use Stellarium (my favorite program) and everything (even the mousecusor) stops responding for a long time. Takes ages to load the desktop and everything is just "f..." B.t.w. I have a dual boot and WinXP is not having this problem with the 8800 card. So, elementary... What's going on between Ubuntu and Nvidia? Best regards Gunnar

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• Menus not visible in some apps in Xubuntu 12.04

  - by Carl Burkart

  I've been using Ubuntu 12.04 for a few weeks and recently added the xubuntu desktop as well. I have noticed that in some applications, there is no menu present. For example, in Thunar, their is no menu (File, View, etc.), so I can't figure out how to "show hidden files." Could this be some conflict between xubuntu and unity's global menu. I want to be able to log in under either on my netbook, so uninstalling one or the other is not an option. Any ideas?

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• Programmaticaly change lightdm autologin session type

  - by marcinpz

  I have problem with lightdm setting autologin session type (using my config tool). Lightdm logs into previously selected session. I see that autologin-session is UNIMPLEMENTED in version 1.2.1. Maybe I can somehow cheat lightdm? but it seems program writes actual state when stopping and overwrites my changes to /home/user/.dmrc and /var/cache/lightdm/user.dmrc. At the current I have two sessions: default and kiosk. in /etc/lightdm/lightdm.conf I have line: user-session=desktop but after I logged into kiosk session it starts all the time. Changing .dmrc and /var/cache/lightdm/dmrc/user.dmrc doesn't work.

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• Cinnamon on Ubuntu 12.04 stoped working after menu edditing

  - by Presbitero

  I have recently installed cinnamon on ubuntu 12.04 with success. After installing MS Office with wine my menu got messy so I tried to edit it with alacarte. After having found out that alacarte is not the proper way to edit it, I right clicked on the menu icon to edit. After just a few editing steps it breaks and cinnamon stopped working (no menus, no desktop icons, no applets, no window decoration, nothing). Now, when I login with cinnamon I just get the background image. I can login with gnome though. I have tried to completely remove cinnamon and nemo and reinstall it but it didn't help. I have no idea of how to get any king of diagnostics so if you ask something please explain how to do it or post a link with explanations. Many thanks for the help, I hope I will not need to format the pc again to make it work.

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• 11.04 64 bit live install cd freezes immediately on boot

  - by wrchis

  I am trying to install 11.04 alpha to a free set of partitions to try it out but neither the regular graphic installer or the alternate installer work. The graphic one freezes when I try to boot the cd (or cd image on usb stick rather) with a distorted static picture of my regular desktop repeated four times. I have an nvidia 240 graphics card if that is any help in diagnosis. I think it is a matter of getting the cd image to use a low rez video mode but I have no idea how to force that. I have used both the iso's from the regular page and the daily page (for several days so far) and they all do the same thing. I have tried both the internal utility and unetbootin to set up the stick with the same results. The alternate installer seems to work up to the point of the software selection step and then throws a 'failed step' error part way through.

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• AMD : des puces à trois et quatre coeurs pour PC portables et une baisse des prix pour contrer Intel

  Mise à jour du 12/05/10 AMD : des puces à trois et quatre coeurs pour portables Et une baisse des prix pour contrer Intel AMD vient de dévoiler des puces triple-coeurs et quadri-coeurs spécialement destinés au marché des Notebooks. Ces puces Phenom II tourneront à une vitesse allant entre 1.6GHz et 2.3GHz. Elles visent bien évidemment à essayer de contrer la concurrence de plus en plus virulente d'Intel qui devrait, de son coté, lancer une gamme de puces entre ses Atoms (pour Netbooks) et ses Core i5/i3 (pour desktop) spécialement conçues pour ce marché des portables hybrides. Rappelons que les Notebooks ...

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• Ubuntu samba file and print server

  - by Gerd

  I am using an old Dell desktop PC as a samba file and print server for a Windows 7 network. The version of Unbuntu I am running is 12.04 which seems to big for the RAM and disk space I have available. Unbuntu 12.04 runs very very slow, the printing over the home network works at a quite acceptable speed. I have two problems: SLOW Ubuntu and I cannot update samba. The update manager tells me "update failed". So my two questions: Is there anything I can remove from the standard 12.04 installation to make Ubuntu run faster and should I uninstall and the reinstall samba to overcome the "update failed" problem? I hesitate, as printing and file serving works somehow and I don't want to loose that. I know I should give you more information to give me answers. But what would you need to know? I am not a natural Linux user. Windows 7 is still my home. Thanks in advance, Gerd

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• How do I install Ubuntu to a USB key?

  - by badp

  If you are hurrying to reply, System ? Administration ? StartUp Disk Creator -- no, that's not what I'm talking about. I want to try Ubuntu 11.04's Unity without touching my existing Ubuntu install. To do this, I need to install the nVidia drivers first (sigh). To do this, I need changes to persist a reboot. To do this, I need to really install Ubuntu on a USB key. How do you do that? What I tried I tried to make a USB key from Testdrive, then boot from it, then choose "Install Ubuntu." The installer refused to install to the installation media itself. I tried, from my installed copy of Ubuntu: sudo kvm /dev/sdb --cdrom .cache/testdrive/iso/ubuntu_natty-desktop-i386.iso ...but the installer didn't detect the disk properly.

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• Kubuntu screensaver won't autostart

  - by Bumpalot

  Am using Ubuntu Lucid + kubuntu-desktop. NVidia works fine. Screensavers set to autostart & worked fine after initial install. Now screensaver attempted to start (brief flash of black only) but since quit doing that.. All screensavers work fine in Test mode. Is there a file entry that controls this?. kde/autostart is empty - should there be an entry here? Would the log files show up any relative errors? I am a newbie & the log info is way out of my league! Have not found any relative posts here or other forums. I would appreciate suggestions.

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• URL parameter names being changed by user agents

  - by Mike Deck

  In reviewing one of our site's web logs I'm seeing instances where we are returning a 404 to requests because we're expecting an id parameter to be sent, but instead we're seeing a di parameter. The resource in question is an image but which image file actually gets served is dependent on the id parameter. The expected url is something like http://images.mysite.com/photo.gif?id=123&width=200&height=300 What I'm seeing in the logs is requests for http://images.mysite.com/photo.gif?di=123&width=200&height=300 The only case where we are seeing this on the id parameter. It seems unlikely that this is due to a server side or JavaScript bug since it seems to be only effecting a small percentage of our traffic. We are seeing this across a wide variety of user agents (both mobile and desktop) and IPs. Has anyone else seen this? Is there a browser plugin or other software you're aware of that could be causing this, and if so is there a good way to work around the issue?

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• Unable to boot 12.04 server: no LVM activated and impossible to mount /

  - by baronKarza

  I'm stuck in the Busy Box shell after upgrading from Ubuntu server 11.10 to Ubuntu server 12.04 64 bit. During the booting phase the system hangs while mounting root filesystem. My system is so configured: /dev/sda1 -- /boot /dev/mapper/vg-lv_root /dev/mapper/vg-lv_var /dev/mapper/vg-lv_tmp When the boot process fails and I'm forwarded to the busybox shell, if I type vgchange -ay I can mount my volumes and all it's OK. But it does not enable LVM automatically so that it is impossible to mount root, var, and tmp. I tried to start with a Knoppix, chroot, reinstall (aptitude) both kernel and lvm2 as suggested by this tread "Fixing unbootable installation on LVM root from Desktop LiveCD": nothing changed. I can't figure out what is the problem. Any suggestion is welcome. Thanks in advance.

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• WinXp display driver incorrect to boot iso ubuntu 12.04

  - by user285829

  I have Windows Xp on a HP Pavilion w/AMD Athlon 64 processor 3300+. I have downloaded Ubuntu 12.04 iso desktop. When trying to run Ubuntu, I get a line that says "sis 630 buss not detected. It continues and makes a blue screen, then says low graphics mode only and has a white screen. The HP has display adaptor sis 760, driver= 6.14.10.3671, 4/20/2005. I'm not familiar with ubuntu because I've never got it started as yet. Can the Ubuntu install process be changed to accept my sis 760 driver? I'm trying to make a Live CD(dvd) to run Ubuntu.

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• HELP: I Broke Ubuntu By Uninstalling Compiz

  - by tSquirrel

  I'm still getting used to Linux, having come from Windows. I was receiving an error that "compiz" had crashed a few times so I figured I'd uninstall it. sudo apt-get remove compiz sudo apt-get install compiz I logged out then back in, after that, the GUI was totally gone and I have no idea how to get it back or what I need to do to restore the GUI to what it was before I killed poor Compiz. GUI was pretty much unmodified after a fresh install of 14.04 How can I fix it? I'm not even sure how to get to a terminal or anything. The login screen looks normal, but after logging in, it's a totally bare desktop with my backround and a few icons. No Dash, toolbar, etc. Hot Keys don't seem to work either (Super = Dash doesn't work, etc); although I did accidently open "Disk" UI. Not sure how. Please Help! Right now I'm working off my W7 dualboot.

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• Ubuntu not booting from USB on laptop (no optical drive)

  - by Jamie

  I'm using a Kingston 16GB USB, with the Unetbootin program. (I've tried both downloading the installation iso manually and adding it, or using the program to download.) I've tried creating the bootable USB on an iMac, the laptop and also a desktop. I've booted into the setup of the laptop and changed the boot order to make sure it boots from that drive first. (There is no optical drive so that isn't a problem.) It's an Acer Aspire AS3810TZ. Upon booting it gives this message: SYSLINUX 4.03 2010-10-22 EDD Copyright (C) 1994-2010 H. Peter Anvin et al I get this no matter how I create the USB, it just sits there. I left the laptop for an hour and it hadn't moved. I've also tried on a different 4GB USB (Generic) and that did the same.

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• What Application Indicators are available?

  - by user8592

  I installed Ubuntu 11.04 on one of my systems and I am using the Unity interface. Unity is working quite well so far but I really miss panel applets for net speed, cpu temp, and system monitor. These applets are useful for viewing quick info. Unlike 10.10, there is no other way to get this info onto the panel or unity launcher. There are solutions like screenlets and conky but they don't feel appropriate for a clean desktop look. If you know one then please list out any third party indicators with links so that they can be found.

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• Why wont the LibGDX's main class Initialize on Android Launcher?

  - by BluFire

  So I was searching for different ways that could suit me in programming and came across LibGDX. Naturally I looked at the tutorial. As I was doing it, I was following the steps word for word, except naming the classes. In the end, I was able to create the desktop launcher for the game but not the android launcher. The following error is my error: Cannot instantiate the type Game (Game is the name of the class) I got the tutorial from http://steigert.blogspot.com.au/2012/02/1-libgdx-tutorial-introduction.html The link in the tutorial is the original but it uses jogl instead of lwjgl.

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• Failed to install the proprietary display driver, Compiz crashed!

  - by Naveen

  ATI Mobility Radeon HD 5400 I was using the default open source driver with Gnome classic, but when I upgraded to the closed sourced one using jockey-gtk/additional drivers everything messed up! It failed to activate the driver. Here is the error log. Wobbly windows or any other compiz effect won't work now. I can't even move a window! I'm on Precise Pangolin, Kernel-3.2.0-31-generic-pae Please Help! :( Update: I think my driver is installed even jockey doesn't show it. Compiz effects are working in Unity desktop... but I want it on Gnome Classic.

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• Problem opening .sh file

  - by Lautré

  I'm trying to install Torchlight from the Humble Indie Bundle 6. The installation file is an sh file. When I try to run the sh file I get this output. [ user@pc:~/Desktop$ sudo sh ./Torchlight-2012-09-26.sh [sudo] password for user: Current temporary directory (usually /tmp by default) does not seem to be executable! Please specify an alternative path by using the --target option.] How do make the tmp dir executable or specify an alternate path? I'm running ubuntu 12.10

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• ubuntu 14.04LTS flickering

  - by user292609

  when I start the computer, makes a big high pitch sound and the only thing I can see on the screen is "[[23" written everywhere . I have to start it always through the recovery mode. Ubuntu desktop screen does not flick, but every window that can maximmize and minimize does it like crazy. Like firefox browser, terminal, vlc.. I have a Lap top Acer Aspire One with AMD/ATI graphic card. I read many forums about flickering screen and I try many things , but I still have the problem. I am very new in Ubuntu. Please help

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• OPN Solutions Catalog Goes Mobile!

  - by Richard Lefebvre

  We are pleased to announce the launch of a mobile-ready OPN Solutions Catalog Features include: A fluid search and browse experience regardless of device (phone, tablet, or desktop) Streamlined design and reorganized search facets, making it easier for customers to search and browse partner profiles and solutions The OPN Solutions Catalog is a free marketing tool for all active Oracle PartnerNetwork members. If you are an OPN partner… take advantage of it! To learn more about the new catalog, watch the Solutions Catalog Training which includes best practices and a demo on how to update your profile. Spend a few minutes with our experts to learn how you can expand your market reach and showcase your offerings to our customers, partners, and Oracle employees worldwide. Questions? Visit the Solutions Catalog Resource page or contact the Partner Business Center.

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• How do I make Ubuntu go past the splash screen?

  - by John Baber

  I recently upgraded my desktop mac to Precise and now can't get past the Ubuntu 12.04 splash page. The splash freezes with ubntu and the dots turning from white to orange forever. This is when I choose 3.2.0-generic from the grub menu. If I choose to load up older kernels, I still get the same thing. How can I make my computer finish booting again? I'm able to ssh into the machine and poke around, but the actual screen freezes at the splash. dmesg cat kern.log

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• How to Deauthorize Flash Content Before You Sell Your PC

  - by Taylor Gibb

  When it comes to selling your old digital equipment you usually should wipe it of all digital traces with something like DBAN, however if you cant there are some precautions you should take, here’s one related to flash content you may have viewed on your PC. When you rent or purchase a movie over a service that uses flash, it authorizes your PC to play that particular content. When you sell your PC, unless you deauthorize your PC, the new owner will still be able to view and play the content your purchased. 6 Ways Windows 8 Is More Secure Than Windows 7 HTG Explains: Why It’s Good That Your Computer’s RAM Is Full 10 Awesome Improvements For Desktop Users in Windows 8

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• How do I completly remove software? [closed]

  - by Dustin

  Possible Duplicate: Why are the hidden settings-folders not deleted when purging an application? Ok I have 8GB on my desktop dual booting win 7. I installed a few games, assualtcube, tremolous, and spring. But I had removed them using 'remove --purge' and only to find they are still lingering and purge does not well truly purge them. I need them completely gone and not secretly hogging space when I purged them. How can i completely remove software, like it is gone and not going to take any more of my precious space? Shrinking 7 and growing Ubuntu is not an answer I am accepting, i want to know how to completely remove software. Thank you for your time and your answers.

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