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• Atheros AR5BWB222 Wireless Intermittent Connectivity

  - by Bart

  So I recently installed Ubuntu on my Acer Aspire V3-551 laptop. I have an Atheros AR5BWB222 wireless adapter. Everything works fine except for the wireless. I can sometimes connect to the wireless, but most of the time it will be making an attempt to connect and then enver connect. Or it will connect, but it will only stay connected for about 10 seconds before getting disconnected from the wireless. All the other drivers updated through System SettingsAdditional Drivers are fine, even the Ethernet. Its just the problem with the wireless. I've tried a power managment setting, tried looking for additional updates, but nothing fixes my problem. Is there any solution for my particular wireless card?

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• If I intend to use Hadoop is there a difference in 12.04 LTS 64 Desktop and Server?

  - by Charles Daringer

  Sorry for such a Newbie Question, but I'm looking at installing M3 edition of MapR the requirements are at this link: http://www.mapr.com/doc/display/MapR/Requirements+for+Installation And my question is this, is the Desktop Kernel 64 for 12.04 LTS adequate or the "same" as the Server version of the product? If I'm setting up a lab to attempt to install a home cluster environment should I start with the Server or Dual Boot that distribution? My assumption is that the two are the same. That I can add any additional software to the 64 as needed. Can anyone elaborate on this? Have I missed something obvious?

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• Who makes laptops for Ubuntu?

  - by Tim Lytle

  I'm looking for a laptop and would like to avoid the whole 'is this [specific configuration of hardware] compatible with Ubuntu?' process by finding a laptop manufactured with Ubuntu in mind. I know of system76, but are there any other manufacturers making laptops built to run a standard build of Ubuntu? I'm not counting Dell, as - from my experience - their 'Ubuntu' laptops/netbooks require their build, and because of that have their own set of compatibility issues. UPDATE: And as mentioned in the comments, Dell is no longer selling systems with Ubuntu to consumers.

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• Best way of accessing data on different pages

  - by Gaz83

  I'm looking for a way to load data into properties/variables etc and have this information accessible to all the pages of my app. I want the information to be loaded via a background thread to keep UI thread free. Some of the pages will have various properties of their controls binding to these global properties. Here is what I tried. Created a static class. All pages could access the data but can't bind. Changed the static class to a Singleton and used DependencyProperty's. All pages could access data and binding worked fine but cross-threading issues when accessing via background threads. I have read in various places on this subject but haven't really come up with the best method yet for my situation.

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• Find Waldo with Mathematica

  - by Jason Fitzpatrick

  If you’re looking for a geeky (and speedy) way to find Waldo, of the Where’s Waldo? fame, this series of Mathematica scripts makes it a snap. Over at Stack Overflow, programmer Arnoud Buzing shares a clever bit of Mathematica-based coding that analyzes a Where’s Waldo? drawing and finds the elusive Waldo. Hit up the link below to see the distinct steps of analysis with accompanying photos. How Do I Find Waldo with Mathematica? [via Make] How To Properly Scan a Photograph (And Get An Even Better Image) The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage

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• Avoiding orbiting in pursuit steering behavior

  - by bobobobo

  I have a missile that does pursuit behavior to track (and try and impact) its (stationary) target. It works fine as long as you are not strafing when you launch the missile. If you are strafing, the missile tends to orbit its target. I fixed this by accelerating tangentially to the target first, killing the tangential component of the velocity first, then beelining for the target. So I accelerate in -vT until vT is nearly 0. Then accelerate in the direction of vN. While that works, I'm looking for a more elegant solution where the missile is able to impact the target without explicitly killing the tangential component first.

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• boot loading problem after wubi installation of Ubuntu 12.04 on Win7

  - by user63085

  I was new in Ubuntu OS and I was just trying to use wubi windows installer to get a Ubuntu first for hands-on. I followed exactly the same as the instructions and after reboot win7, there is no Ubuntu selection in windows boot manager, with only Windows 7 showing there evilly -.- What I've found out was that the grub folder inside Ubuntu folder ( in my C:\ drive) was empty, either inside the ubuntu\disks\grub or ubuntu\install\grub. I thought this might be the reason why I could not load ubuntu during startup. Cause I've also looked into the EasyBCD settings, and ubuntu entry with Bootloader Path: \ubuntu\winboot\wubildr.mbr was lying there peacefully, looking perfectly fine. However it was not in boot loader actually. Is there a way to restore the grub folder with grub2, or is there any way to fix this problem so that I can find the "Ubuntu" selection at windows startup? Very appreciate your help :) Henry

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• How do I get Chromium to show PDFs using Evince?

  - by potofcoffee

  Is there any way to get Chromium to use a mozpluggerrc/evince combination to show PDFs embedded into its own window? Right now, Chromium is just downloading PDFs. I can open them in an external evince window by clicking on the downloaded file. I am using Chrome 18.0.1025.168 under Ubuntu 12.04 (amd64). Here's the pdf section of my /etc/mozpluggerrc.d/62-documents.conf: application/pdf:pdf:PDF file application/x-pdf:pdf:PDF file text/pdf:pdf:PDF file text/x-pdf:pdf:PDF file repeat noisy swallow(evince) fill needs_xembed: evince "$file" mozpluggerrc does show up in about:plugins. BTW, this works just fine in Firefox. Note: I am not looking for hints on how to use Google Chrome's PDF plugin in Chromium.

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• Suggestions regarding building Java EE applications

  - by pradeepsimha

  Currently our team started with a new project. Its a new development, and we are having a team of 4 members (with no dedicated architect for this project). Currently we are making a decision of building applications and looking forward a expert suggestions. So in your workspace or in your projects, how often do you commit and build your java ee applications? Is it like once one milestone functionality is over you build and commit or is there any schedules (like everynight) to builds? We are planning to use Hudson as a build tool. Can you kindly guide me? I am thinking of scheduling a build to test environment so that all the time we will have a latest functionality available.

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• Efficient skeletal animation

  - by Will

  I am looking at adopting a skeletal animation format (as prompted here) for an RTS game. The individual representation of each model on-screen will be small but there will be lots of them! In skeletal animation e.g. MD5 files, each individual vertex can be attached to an arbitrary number of joints. How can you efficiently support this whilst doing the interpolation in GLSL? Or do engines do their animation on the CPU? Or do engines set arbitrary limits on maximum joints per vertex and invoke nop multiplies for those joints that don't use the maximum number? Are there games that use skeletal animation in an RTS-like setting thus proving that on integrated graphics cards I have nothing to worry about in going the bones route?

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• Does Windows 8 still support DirectX 9?

  - by SullY

  Is Windows 8 supporting DirectX 9? Because I was looking through some samples written in C++ and DirectX 9 made for Windows 8. It wasn't that, like I know it ( look here http://directxtutorial.com/Lesson.aspx?lessonid=111-4-2 ). E.g. Inizialising DirectX with COM: ComPtr<ID3D11Device1> dev; ComPtr<ID3D11DeviceContext1> devcon; It's just weird because I know it with the old way: ID3D11Device *dev; ID3D11DeviceContext *devcon; ( I hope you understand what I want to tell ) I hope it hasn't change completely due the released their new OS.

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• Launchpad: Missing build dependencies even though dependency should be contained in uploaded package

  - by Chris

  I want to backport gcc-4.7 from raring to precise. So I ran backportpackage and uploaded gcc-4.7 to my PPA. However, when Launchpad tries to build it it complains about a missing dependency: Dependency wait on rhenium (virtual64) Missing build dependencies: libx32gcc1 Started on 2013-10-24 Finished on 2013-10-24 (took 2 minutes, 46.6 seconds) From looking at the package info for gcc-4.7 it seems that this should also be contained in the gcc-4.7 package that has been backported. What do I need to do to make Launchpad find this and build my package?

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• OpenGL ES 2.0. Sprite Sheet Animation

  - by Project Dumbo Dev

  I've found a bunch of tutorials on how to make this work on Open GL 1 & 1.1 but I can't find it for 2.0. I would work it out by loading the texture and use a matrix on the vertex shader to move through the sprite sheet. I'm looking for the most efficient way to do it. I've read that when you do the thing I'm proposing you are constantly changing the VBO's and that that is not good. Edit: Been doing some research myself. Came upon this two Updating Texture and referring to the one before PBO's. I can't use PBO's since i'm using ES version of OpenGL so I suppose the best way is to make FBO's but, what I still don't get, is if I should create a Sprite atlas/batch and make a FBO/loadtexture for each frame of if I should load every frame into the buffer and change just de texture directions.

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• What is the benefit of not using Hungarian notation?

  - by user29981

  One of the things I struggle with is not using Hungarian notation. I don't want to have to go to the variable definition just to see what type it is. When a project gets extensive, it's nice to be able to look at a variable prefixed by 'bool' and know that it's looking for true/false instead of a 0/1 value. I also do a lot of work in SQL Server. I prefix my stored procedures with 'sp' and my tables with 'tbl', not to mention all of my variables in the database respectively. I see everywhere that nobody really wants to use Hungarian notation, to the point where they avoid it. My question is, what is the benefit of not using Hungarian notation, and why does the majority of developers avoid it like the plague?

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• Starting out with 2D cross-platform game development [closed]

  - by Aran

  I am wanting to challenge myself to build a simple game, that has a character and a randomly generated world. If I get anywhere with it I may perhaps I'll develop it into something more, but the key challenge I want to tackle is cross-platform. I'd also want to have a go at creating engine myself, doing lighting and other bits. Is it worth me using a system like Unity or do I go down a more custom route? The game I would like to make is a 2D game so whether that changes the tools I should use, it would be great to know as well. Supporting mobiles isn't something I am worried about at moment, just looking for Mac and Windows for time being. In future I'll consider other platforms if I get anywhere with the development. So if anyone has any recommendations for a language, engine or system to use would love to her your thoughts.Including pros and cons would be helpful and appreciated and if you can do comparisons that would be awesome as well!

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• Is there a good tutorial/book for creating a quiz app for iOS 5? [closed]

  - by NRUTA

  I am new to iOS development and looking to create a quiz application which will be for ipad, iphone and itouch. It will ask a question, text based, and have four possible answers. After you select an answer, the system tells you if you are right or wrong and provides an explanation. It provides the percentage of correct answers. I'm not sure how to go about creating this and wondered if anybody has read a book, seen a tutorial or could offer any advice that would explain this process? Thanks in advance for all of your help!

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• Personal/career objectives tracker

  - by scottyab

  Looking for a simple, clean and easy to use personal/career objectives tracker for my team of ~10 developers something like what remember the milk is for tasks. At the moment I track these in a google doc, but ideally like a system where I can browse the teams objectives, add a team objective and it automatically appear on members personal objectives. Also where team members can add/manage their own objectives, browse colleges public/team objectives. Ideally it would also have option for people to add personal out side of work objectives for personal dev projects. Anyone used a tool to do this? our a combination of existing tools like gdocs, rtm?

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• To use Dart, the Java programmer has to work with 2 languages? [closed]

  - by Sridhar-Sarnobat

  When deciding on a technology to use for web apps, it's become a difficult choice between GWT and Dart and I am looking for guidance in deciding. GWT is a java programmer's dream because they don't have to learn a new language or have to worry about a separate IDE or extra plugin etc. GWT was sold using this value proposition - one didn't need to program in Javascript. But are Google making a U-turn and saying "go through the hassle of learning a new language" afterall? Or is it intended for there to be a Java to Dart compiler so that Java developers do not have to learn a new language? (this is not a rant, so I don't know why you are down-voting the question) Note: "the syntax is very similar" is not a justification. You could say why bother with GWT and just work with Java + Javascript directly.

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• understanding technology that news websites use

  - by Registered User

  I am trying to understand the technology which many news websites use please have a look at this website http://www.shritimes.com/ if you click any news item then the particular thing gets zoomed and viewer can read the news as far as I can understand they have done some programming by which a gif image is opened up in a new pop up, can some one help to understand as what thing is used here javascript,html, php or what exactly? I have seen this feature in a lot of websites I want to know how it is achieved? I am looking from the code side of the things if some one can advise me any function call which does this I am a programmer but into C I am new to web kind of things.

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• How can I protect my save data from casual hacking?

  - by Danran

  What options are there for saving game data in a secure manner? I'm interested in solutions specifically tailored for C++. I'm looking for something that is fast and easy to use. I'm only concerned about storing simple information such as Which levels are and are not unlocked The user's score for each level I'm curious again to know what's out there to use, any good libraries to use that give me nice, secure game data files that the average player can't mess with. I just found this here which looks very nice, but it would be great to get some opinions on potential other libraries/options out there.

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• ExcelBook Conceals Facebook Browsing in a Spreadsheet

  - by Jason Fitzpatrick

  If you can’t get enough of social media while you’re at work, ExcelBook hides your Facebook browsing inside a spreadsheet. It’s certainly not the way to win the employee of the month award, but if you’re looking for a subtle way to browse and update Facebook from your cube ExcelBook offers and Adobe Air-based Facebook interface that looks like a spreadsheet application. Hit up the link below to grab a copy. ExcelBook [BeStupidAtWork via Yahoo! News] HTG Explains: Photography with Film-Based CamerasHow to Clean Your Dirty Smartphone (Without Breaking Something)What is a Histogram, and How Can I Use it to Improve My Photos?

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• Roll Your Own Flexi-Ties to Secure and Store Frequently Used Cables

  - by Jason Fitzpatrick

  If you’re looking for an easy way to hang up or tidy frequently used cables, these DIY soft ties are durable, resuable, and easy to make. Soft ties ties are metal wire ties coated in rubber; people use them for everything from securing computer cables to shaping garden plants. Instructables user Bobzjr wanted a lot of them but couldn’t find anyone that sold bulk roles of the soft tie material. To that end he did a little exploring at the hardware store and found the perfect combination of wire and rubber to roll his own. Hit up the link below for more information on his DIY soft tie project. Roll Your Own Flexi-Ties (Soft Twist Ties) [Instructables] How To Properly Scan a Photograph (And Get An Even Better Image) The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage

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• LWJGL in Visual Studio (possible)?

  - by Suds

  I switched from XNA and C# to LWJGL and Java about 14 months ago. Inherently, this called for a switch in IDE. I started using eclipse because I have also done some basic Android development in the past. I soon switched to Netbeans - Eclipse is just too primitive. After using netbeans for about six months, I've started looking over the fence at Visual Studio 11, toying with Metro apps for windows 8. Now I want to know, is there any known way to use Visual Studio for LWJGL?

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• Which is the best non-java, dynamic, programming language to build attractive GUIs?

  - by VeeKay

  I am well acquainted with java and groovy but somehow I am not intrigued by the performance or looks of swing based applications that are developed on the same. So I want to learn and know about THE best alternate dynamic programming language (coz I am looking for little bit of luxury while writing code by not willing to fiddle with pointers, memory handling, static typing difficulties etc) to develop attractive cross platform GUIs. To be precise, when I say attractive I mean support for elegant translucent windows and nicer components (not the flashy adobe stuff). Can you please suggest me a programming language that manages to fit into this?

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• How do you configure mupen64plus controls?

  - by user99426

  I installed mupen64plus from the repositories using Synaptic. I like the emulator (for the most part, a couple of graphics glitches on TLOZ Ocarina of Time), especially its performance on my old machine, but I cannot figure out how to configure the controls for myself. I tried looking at Google Code's guide here but I can't find the file I need to edit and the link with the key ids isn't working, so even if I could find the file I wouldn't be able to change anything. So what I need is a resource with the key ids and where to find the file I need to edit. I am running Ubuntu 12.10 32-bit. 2GB RAM, Intel CORE 2 DUO @ 2.00GHz

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