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• How to Reinstall Ubuntu on Acer C7 Chromebook

  - by Daniel

  I installed Chrbuntu 13.04 recently and it works great, however I was updating some programs when a pop-up appeared asking if i wanted to upgrade to the newest version. I didnt realize that it was still unstable and buggy. I am unsure on how to do this. Ive been told that i need to wipe the ubuntu partition completely but i dont see why that is neccesary. Basically i want to remove ubuntu 13.10 and use the partition it is installed on to install 13.04. Sorry for being a noob on linux but i hope you can help, And thanks for your time.

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• updater stuck on downloading python files

  - by Tim

  However i am a java programmer is consider myself as a linux noob. So i could use a little help here... I am trying to update my ubuntu from version 10.04 to 12.04.1 (LTS). The downloading start and runs at around 10MB/s untill i am somewhere near 26% and the speed just drops to 0. I figured i could use the command "do-release-update" so i could see what it was doing. Again the same occured: the downloading stucked on 26% at "http://nl.archive.ubuntu.com/ubunutu/ precise/main python-qt4 1386 4.9.1-2ubuntu1". It says it downloaded 41% of that file/package. It also tries another wget on the same file every X seconds. Help? Greetings Tim, Holland.

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• No Apologies

  I think the hardest part of writing a book, is having to accept the negative reviews on Amazon. I expect my latest book, Building Websites with DotNetNuke 5, to get about 2 stars due to the negative reviews I am expecting. Now, this book has a lot of things to offer. Ian Lackey wrote most of the book and it covers the latest version of DotNetNuke 5, inside and out. I wrote the module development chapters that cover: Creating modules using Silverlight Creating modules using Linq to SQL ...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Shifting from no-www to www and browsers' password storage

  - by user1444680

  I created a website having user-registration system and invited my friend to join it. I gave him the link of no-www version: http://mydomain.com but now after reading this and this, I want to shift to www.mydomain.com. But there's a problem. I saw that my browser is storing separate passwords for mydomain.com and www.mydomain.com. So in my friend's browser his password must have been stored for no-www. That means after I shift to www and next time he opens the login page, his browser wouldn't auto-fill the username and password fields and there will also be an extra entry (of no-www) in his browser's database of stored passwords. Can this be avoided? Can I do something that will convey to browsers that www.mydomain.com and mydomain.com are the same website? I already have a CNAME record for www pointing to mydomain.com but it seems that search engines consider CNAME as alias but browsers consider them as different websites, I don't know why.

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• Pros and cons of hosted scripts

  - by P.Brian.Mackey

  I have seen some developers use hosted scripts to link their libraries. cdn.jquerytools.org is one example. I have also seen people complain that a hosted script link has been hijacked. How safe is using hosted scripts in reality? Are the scripts automatically updated? For example, if jQuery 5 goes to 6 do I automatically get version 6 or do I need to update my link? I also see that Google has a large set of these scripts setup for hosting. What are the pros and cons?

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• What is the advantage of a programmers VM apart from portability

  - by user619818

  I can understand the benefits of Java running on a JVM. Portability. Nice simple reason. But I have always been puzzled as to why Microsoft brought out their own version of a JVM - .NET. C# is supposed to be a fine language (haven't used myself) but could Microsoft have launched product to use native. ie to generate an exe? My colleague is learning F#. The reason it has to be a language which runs on .NET is because the Microsoft Lync API which will be used is only available on .NET. ie there is no C API for Lync. A cynical view may be that the reason is vendor lockin. F# will only run on a Microsoft platform (or C# for that matter) and so program is locked in. But maybe I am missing some other benefit of a VM platform?

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• Creating a XAML Tile Control

  - by psheriff

  One of the navigation mechanisms used in Windows 8 and Windows Phone is a Tile. A tile is a large rectangle that can have words and pictures that a user can click on. You can build your own version of a Tile in your WPF or Silverlight applications using a User Control. With just a little bit of XAML and a little bit of code-behind you can create a navigation system like that shown in Figure 1. Figure 1: Use a Tile for navigation. You can build a Tile User Control with just a little bit of XAML and...(read more)

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• kubuntu - what's the best smplayer configuration for best quality in hd movies (mkv)

  - by Frank

  I have ubuntu x64 13.04 with kde 4.11 and smplayer v0.8.6 and the last mplayer version from ppa. I have ATI video card HD6870 MSI with fglrx driver v13.4. My kde settings are: Composition mode: Opengl 3.1 graphic system qt: Raster scaling mode: precise Vsync: auto So what's the best configuration for quality over performace in smplayer according to my system specs? For example what do I have to set for the following options? enable postprocessing by default and postprocessing quality output driver Deinterlacing method software equalizer direct rendering double buffering draw video using slices threads for decoding (MPEG-1/2 and H.264 only loop filter use CoreAVC Thanks

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• Livre blanc de l'outillage de Qt Quick, traduit par Thibaut Cuvelier et Louis du Verdier

  Qt Quick correspond à une collection de technologies qui sont conçues pour aider les développeurs à créer des interfaces utilisateur intuitives, fluides et à l'apparence moderne, le genre d'interfaces graphiques de plus en plus utilisées sur les téléphones portables, lecteurs média, set-top boxes et autres appareils portables. Qt Quick est constitué d'un ensemble riche d'éléments d'interface utilisateur, d'un langage déclaratif pour la représentation d'interfaces utilisateur, et d'un moteur d'exécution de langage. Une collection d'API C++ est utilisée pour intégrer ces caractéristiques de haut niveau avec les applications Qt classiques. La version 2.1 de l'environnement de développement (EDI) Qt Creator introduit des outils utiles au développement d'applications Qt Quick. Ce livre blanc do...

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• Silverlight Has a Bright Future

  The first positive sign for the platform's developers is the fact that Microsoft made Silverlight 5's release candidate stage available at the beginning of this month. This points to an official final release in the near future. While Silverlight 5's upcoming release is good news, Microsoft put a damper on it when it recently debuted Windows 8 and noted that it would favor HTML5 instead. In addition, the company said that plugins would not be supported on Windows 8's Metro version of Internet Explorer, leaving plugins such as Silverlight and Adobe Flash out in the cold. Add in a strategy o...

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• Release build vs nightly build

  - by Tuomas Hietanen

  Hi! A typical solution is to have a CI (Continuous Integration) build running on a build server: It will analyze the source code, make build (in debug) and run tests, measure test coverage, etc. Now, another build type usually known is "Nightly build": do slow stuff like create code documents, make a setup package, deploy to test environment, and run automatic (smoke or acceptance) tests against the test environment, etc. Now, the question: Is it better to have a third separate "Release build" as release build? Or do "Nightly build" in release mode and use it as a release? What are you using in your company? (The release build should also add some kind of tag to source control of potential product version.)

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• How to get working cups command line tools on Server 14.04

  - by Nick

  It looks like some of the commands like lpr and lprm have broken versions that don't work with cups. These commands worked properly on 10.04. lpr for cups has an -o option, but no lpr is intalled when cups is installed, and the lpr installed with apt-get install lpr does not have the -o option and does not appear to be the cups version of lpr. man lpr shows BSD General Commands Manual at the top, where man lpr on the Ubuntu 10.04 server said Apple, inc in the same spot. which leads me to believe the "wrong" lpr is in the "lpr" package or package names got moved around. There is also a lprng package, but trying to install it wants to remove cups and cups-client. lprm also returns lprm: PrinterName: unknown printer when PrinterName is in fact a valid printer installed with cups and does appear in lpstat -t. How do I get the proper cups versions of lpr working on Server 14.04?

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• Changes to File Store Provider in UCM PS3

  - by Kevin Smith

  In the recent PS3 release of UCM (11.1.1.4.0) there are some significant changes to the File Store Provider (FSP) configuration. For new PS3 installs (not upgrades from PS2) the FSP default storage rule includes a dispersion rule that will change the web-layout and vault paths by adding dispersion directories to the paths to limit the number of files in the vault and web-layout directories. What that means is that if you install a new PS3 UCM instance and migrate content in from a previous version of UCM the web URL will change. That is a critical problem for web sites and just general document management. See below for some details on the FSP configuration in PS3 and how you can change the default behavior. use the link below to read the rest of this post where I describe the issue in detaill and provide instructions for how to modify a PS3 instance to use the old format for the web-layout path.

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• At what visitor share do you stop supporting a given browser?

  - by adam

  I'm lead dev for a large website which has a higher than average percentage of IE6 users - about 4.4% of our audience. Our new version is going to make use of progressive enhancement - including transitions and effects as well as rounded corners, gradients, web fonts and other CSS techniques. Obviously there are cross-browser ways to achieve most of these things which require various amounts of work to implement. What I'm currently looking into - and what I'd like your experiences of - is how to decide at what point we draw the line between providing an enhanced experience vs just supporting the functionality. FYI, I believe that this question meets the six guidelines for great subjective questions as defined in the FAQ. I'm after answers detailing why and how, not too short, with constructive comments, experiences, facts and references. Thanks! Adam

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• Battery Indicator Missing

  - by Edwin

  Duplicate of: No Battery Status Icon I have just recently upgraded from 11.04 "Natty Narwhal" to 11.10 "Oneiric Ocelot" on my laptop, but do not have any battery indicator (which should be located between the volume and date indicator in Unity). I have already run sudo apt-get install indicator-power and got the following output: Reading package lists... Done Building dependency tree Reading state information... Done indicator-power is already the newest version. indicator-power set to manually installed. The following packages were automatically installed and are no longer required: //list of packages Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. In addition, I have already tried reinstalling, but still don't have a battery indicator. What else can I do?

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• Unable to install files with apt-get: "unable to locate package"

  - by Ben Casling

  I'm having issues with my ubuntu server version 12.04 installed on a HP550 laptop, when i try sudo apt-get install <programname>, e.g apache2 it will not work, saying E: Unable to locate package apache2. I have tried to look/edit the sources. but they will not work either the gedit command is broken too, i am trying gedit /etc/apt/sources.list for those wondering, is this a case of the computer network not configured properly? it downloaded a language pack easily enough in the installation though. how do i fix this? a prompt reply would be appreciated.

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• 9/18 Live Webcast: Three Compelling Reasons to Upgrade to Oracle Database 11g

  - by jgelhaus

  Webcast: Three Compelling Reasons to Upgrade to Oracle Database 11g Date: Tuesday, September 18, 2012 Time: 10 a.m. PT/1 p.m. ET If you or your organization is still working with Oracle Database 10g or an even older version, now is the time to upgrade. Oracle Database 11g offers a wide variety of advantages to enhance your operation. Join us for this live Webcast and learn about what you’re missing: the business, operational, and technical benefits. With Oracle Database 11g, you can: Upgrade with zero downtime Improve application performance and database security Reduce the amount of storage required Save time and money Register today here

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• Where is Kile's dictionary?

  - by user2413

  Hi, I've accidentally added 'itterative' to Kile's dictionary (right click on the wrong button). Now I'd like to remove 'itterative' from the list of correct words but I can't locate the dictionary anymore (the old link in settings-configure kile ) does not link to where it used to... Thanks in advance, PS: I use Kile as out of the box...no special settings no-nothing EDIT To adress Oli's answer below. Kcontrol is not in the 10.10 reps (apparently) downloading the .tar.gz version of kcontrol and install it, by typping: cd ~/Documents/khepera SUBDIRS="libtns_util libxfgc libkhepera kcontrol" for i in $SUBDIRS ; do make -C $i install; done for i in $SUBDIRS; do make -C $i clean; done for i in $SUBDIRS; do make -C $i tgz; done creates load-full of errors. I guess they could be solved, but it seems of an overkill just to locate Kile's dictionary. Any other ideas?

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• What's the best Wireframing tool?

  - by Strae

  I'm looking for something similar to iPlotz or Mockup. I've found the Pencil Project, but it requires xulrunner-1.9 (which seems to be incompatible with xulrunner-1.9.2) in order to run as a standalone application. It can be used as a firefox plugin... but it is a bit slower. The error on my desktop (Ubuntu 10.04) is: Could not find compatible GRE between version 1.9.1 and 1.9.2.* Does anyone know other software? Edit: Open-source software is preferred, and it doesn't matter whether or not it's free.

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• Questions and Answers from Today's Upgrade Webcast with Roy Swonger

  - by margaret hamburger

  Thanks for attending today's live webcast, 3 Compelling Reasons to Upgrade to Oracle Database 11g with Oracle Database Upgrade Expert Roy Swonger. We had an amazing turnout this morning and responded to more than 40 of your upgrade questions that I just couldn't wait to share with you. Don't worry if you missed today's live webcast. You can register for the On-Demand version to learn about Oracle Database 11g upgrade best practices with real customer examples, plus loads of great upgrade resources for making database upgrades faster and easier. You can also download a copy of our webcast presentation.

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• Installing old Loki games on 12.04 64-bit results in no audio

  - by FlabbergastedPickle

  All, Here's an interesting problem. I followed instructions provided online for installing Loki Games' Heroes of Might and Magic 3 (see http://www.swanson.ukfsn.org/loki/ and http://wtanaka.com/node/7641) and got it installed and patched to the latest version. However, every time I start it regardless whether the pulseaudio is running, I get the following error: LD_LIBRARY_PATH=/usr/local/lib/Loki_Compat/ /usr/local/lib/Loki_Compat/ld-linux.so.2 /usr/local/games/Heroes3/heroes3.dynamic ALSA lib conf.c:3314:(snd_config_hooks_call) Cannot open shared library libasound_module_conf_pulse.so ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM default Couldn't open audio: My first soundcard is HDMI output and my second one is the actual soundcard (HP DM1 running 12.04 64-bit with latest updates). I did set up /etc/asound.conf as follows: asound.conf pcm.!default { type hw card 1 } ctl.!default { type hw card 1 } So, the default soundcard should work ok. Between Shadowgrounds that also stopped working and this it appears a there may be some unfinished business/regressions in 32-bit support on 64-bit systems in 12.04. Any thoughts?

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• What are the downsides of implementing a singleton with Java's enum?

  - by irreputable

  Traditionally, a singleton is usually implemented as public class Foo1 { private static final Foo1 INSTANCE = new Foo1(); public static Foo1 getInstance(){ return INSTANCE; } private Foo1(){} public void doo(){ ... } } With Java's enum, we can implement a singleton as public enum Foo2 { INSTANCE; public void doo(){ ... } } As awesome as the 2nd version is, are there any downsides to it? (I gave it some thoughts and I'll answer my own question; hopefully you have better answers)

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• Telesharp: An application metadata repository that enables true agility in enterprise .NET applications.

  - by Vishal

  Tellago Studios proudly announces its newest product, a third one within a year of time : TELESHARP .NET Configuration Management has always been a nightmare for any enterprise. TeleSharp is an innovative product that addresses the most common challenges of .NET applications in the enterprise. After years of struggle developing and managing large .NET applications, we decided to create a tool that makes .NET applications truly agile. You can read more about Telesharp and what difference it can make into your enterprise. Also if you want to see Telesharp in action, check the videos about it. Click here to get more information about TeleSharp trial version! Click here to register for the TeleSharp webinar on July 6th from 2PM - 3PM EST.   -Vishal

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• How can I solve display glitches and poor performance with ATI fglrx driver on my ThinkPad X100e?

  - by rewbs

  I noticed that video performance on my Thinkpad X100e was very poor compared to Windows 7, so I installed the ATI fglrx proprietary drivers by using the "Additional Drivers" dialogue box. The system has an ATI Radeon Mobility HD 3200 chip. The result of installing the drivers is pretty devastatingly negative, with symptoms such as skewed content in windows, browser tabs and text boxes failing to refresh when their content changes. In fact, please excuse typos in this post, because I can't really see what I am typing. :) I also notice that HD video playback performance is no better - perhaps even worse - than prior to installing the drivers. Example of what I see: Here's the output of fglrxinfo: display: :0.0 screen: 0 OpenGL vendor string: ATI Technologies Inc. OpenGL renderer string: ATI Radeon HD 3200 Graphics OpenGL version string: 3.3.10237 Compatibility Profile Context Output of lspci | grep -i vga: 01:05.0 VGA compatible controller: ATI Technologies Inc RS780M/RS780MN [Radeon HD 3200 Graphics] I'm on Ubuntu 10.10 with kernel 2.6.35-22-generic-pae. What can I try? Many thanks, -R

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• front usb wont mount harddrives, internal usb ports do

  - by Thesgsuser

  I have noticed something in my new build, i am using Ubuntu desktop newest version my motherboard is the asus f1a75-m pro R2.0 with the usb ports in the back all my NTFS hard disks or usb sticks work fine, but then.. when i put them in the front usb ports of my chassis (silverstone milo ml-03) they wont mount... I have 2 usb 3.0 ports in front of the case connected with a internal usb 3.0 header. But i verified that the usb 3.0 ports on the back do mount the harddisk so it has nothing to do with usb 3.0 i think. The strange thing is, my mouse works fine on the front usb ports. Every usb hardware piece seems to work except if it has any memory inside it :( What seems to be the problem?

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