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• Screensaver + lock double login problem after Maverick upgrade

  - by dr Hannibal Lecter

  Just found something strange after updating from 10.04 to 10.10. I've set up my screensaver to lock the account when activated. When I log back in, I see my desktop for a second and then the screensaver starts again and I have to re-login. I checked my process list in gnome system monitor, and I have two gnome-screensaver processes(!?), one started as /usr/bin/gnome-screensaver and other simply as gnome-screensaver. And no, I did not start one manually. Where do I look for a way to switch off one of those (supposing that's the problem)? I did not find anything in my startup applications.

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• How do I get a Qualcomm Atheros Killer E2200 gigabit ethernet card working on a MSI Z87-GD65?

  - by Travis Allen

  So I literally just built my first computer from scratch and I can't get the network card to work as I've gathered it requires getting some drivers somehow.. Motherboard : MSI Z87-GD65 CPU : Intel Haswell i7 Ubuntu Ver : 12.04 Using the on-board network port Please help I'm about to start crying into my keyboard over this (not really). Any info would be greatly appreciated, also please be very specific as to what I have to do as I have not used Ubuntu very much so talk to me like a child, I won't take offence. Also I've already tried following the instructions here : How do I get a Qualcomm Atheros Killer E2200 gigabit ethernet card working? I don't know if I'm just retarded or am missing something

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• What makes for a good JIRA workflow with a software development team?

  - by Hari Seldon

  I am migrating my team from a snarl of poorly managed excel documents, individual checklists, and personal emails to manage our application issues and development tasks to a new JIRA project. My team and I are new to JIRA (and issue tracking software in general). My team is skeptical of the transition at best, so I am also trying not to scare them off by introducing something overly complex at the start. I understand one of JIRA's strengths to be the customized workflows that can be created for a project. I've looked over the JIRA documentation and a number of tutorials, and am comfortable with the how in creating workflows, but I need some contextual What to go along with it. What makes a particular workflow work well? What does a poorly designed workflow look like? What are the benefits/drawbacks of a strict workflow with very specific states and transitions to a looser workflow, with fewer, broader defined states and transitions

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• Hide individual regions on a territory map

  - by Paul

  I have a map of adjacent irregularly-shaped territories. It happens to be a county map, but that's not important. In the game, the player only sees a few to start, and as he progresses to new territories, the ones adjacent to it are revealed. It's a territory-scale fog-of-war. I'm using Unity3D, and my inclination is to make a set of planes, each of which has an image of a single territory on it, and then arrange them manually like a jigsaw puzzle. It then is fairly easy to respond to a click on each region and also to mark the planes as visible or invisible, or even do clever things like fade or zoom on individual regions. This sounds like an arduous task, and if we need to change the visual design of the territories, we'd have to cut up the main map all over again into each of the individual pieces. Does anyone have a more elegant solution to this problem?

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• Which Programming Languages Support the Following Features?

  - by donalbain

  My personal programming background is mainly in Java, with a little bit of Ruby, a tiny bit of Scheme, and most recently, due to some iOS development, Objective-C. In my move from Java to Objective-C I've really come to love some features that Objective-C has that Java doesn't. These include support for both static and dynamic typing, functional programming, and closures, which I'm trying to leverage in my code more often. Unfortunately there are trade-offs, including lack of support for generics and (on iOS at least) no garbage collection. These contrasts have lead me to start a search for some of the programming languages that support the following features: Object Oriented Functional Programming Support Closures Generics Support for both Static and Dynamic Typing Module Management to avoid classpath/dll hell Garbage Collection Available Decent IDE Support Admittedly some of these features(IDE support, Module Management) may not be specific to the language itself, but obviously influence the ease of development in the language. Which languages fit these criteria?

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• Beginners Guide to Visual Studio LightSwitch makes it easy to take a closer look

  - by Jim Duffy

  Following up on my most recent post about LightSwitch I thought I’d keep you in the loop on a valuable LightSwitch resource. The Beginners Guide to Visual Studio LightSwitch provides a jump start to get you and the department-level-typical-Access-application-developing-power-user rolling with LightSwitch in no time. The guide is broken down into 4 easy to follow parts. Beginners Guide to Visual Studio LightSwitch (Part – 1) – Working with New Data Entry Screen Beginners Guide to Visual Studio LightSwitch (Part – 2) – Working with Search Screen Beginners Guide to Visual Studio LightSwitch (Part – 3) – Working with Editable DataGrid Screen Beginners Guide to Visual Studio LightSwitch (Part – 4) – Working with List and Details Screen I mentioned it in my prior post but don’t forget to check out Beth Massi’s blog for additional information on Visual Studio LightSwitch. Have a day.

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• How To Make Images, Music, Video, and PDF Files Open On The Desktop in Windows 8

  - by Chris Hoffman

  Windows 8 opens many types of files in the Windows 8 interface formerly known as Metro by default. If you’re at the desktop and double-click many types of media files, you’ll see a full-screen media viewer. You can easily prevent these media files from opening in the full-screen Windows 8 apps when you double-click them. All you have to do is change your default programs. What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8 HTG Explains: Why You Shouldn’t Use a Task Killer On Android

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• ubuntu cant be installed as it says GPU lock

  - by piyush bhardwaj

  i have win 7 running on my system i just wanna move to ubuntu 12.10 desktop version 36 bit but when i try to install the CD gets loaded start screen comes but suddenly texts line appears and screen goes black the text are - [189.463934] [drm] [noveau] 0000:02:00.0: GPU LOCK- switching to software fbcon [194.248014] [drm] [noveau] 0000:02:00.0: failed to idle channel 1 [199.504009] [drm] [noveau] 0000:02:00.0: failed to idle channel 3 and it goes on.....like this iam new to the linux system so dnt know much abt it ..so if any body can help me to solve my prblm.. my laptop is of HCL and it has 3 gb ram or 350 gb hard disk with nvidia graphic card ..it has 2 ghz pentium dual core it was manufactured in 2009.. so if any body can help i would be greatful and can be able to join ubuntu..

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• Testing Reference Data Mappings

  - by Michael Stephenson

  Background Mapping reference data is one of the common scenarios in BizTalk development and its usually a bit of a pain when you need to manage a lot of reference data whether it be through the BizTalk Cross Referencing features or some kind of custom solution. I have seen many cases where only a couple of the mapping conditions are ever tested. Approach As usual I like to see these things tested in isolation before you start using them in your BizTalk maps so you know your mapping functions are working as expected. This approach can be used for almost all of your reference data type mapping functions where you can take advantage of MSTests data driven tests to test lots of conditions without having to write millions of tests. Walk Through Rather than go into the details of this here, I'm going to call out to one of my colleagues who wrote a nice little walk through about using data driven tests a while back. Check out Callum's blog: http://callumhibbert.blogspot.com/2009/07/data-driven-tests-with-mstest.html

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• How do you update copyright notices?

  - by James

  So now it's 2011, and as I carry on coding on our active projects it's time to update some copyright notices. eg. Copyright Widgets Ltd 2010 to Copyright Widgets Ltd 2010, 2011 My question is when do you update the copyright notices? Do you change the notice in the head of a file the first time you work on that file? Since a module is one piece of code consisting of many files that work together, do you update all notices in that module when you change a single file in that module? Since a program is one piece of code (maybe consisting of many modules), do you update all notices in that program when you change a single file in that program? Or do you just go through and change en-mass over your morning coffee on the grounds your about to start programming and updateing things?

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• Interview question: How would you implement Google Search?

  - by ripper234

  Supposed you were asked in an interview "How would you implement Google Search?" How would you answer such a question? There might be resources out there that explain how some pieces in Google are implemented (BigTable, MapReduce, PageRank, ...), but that doesn't exactly fit in an interview. What overall architecture would you use, and how would you explain this in a 15-30 minute time span? I would start with explaining how to build a search engine that handles ~ 100k documents, then expand this via sharding to around 50M docs, then perhaps another architectural/technical leap. This is the 20,000 feet view. What I'd like is the details - how you would actually answer that in an interview. Which data structures would you use. What services/machines is your architecture composed of. What would a typical query latency be? What about failover / split brain issues? Etc...

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• Web.NET is Closing Fast

  - by Chris Massey

  The voting for sessions has now closed, and sadly only half of the potential sessions could make it through. On the plus side, the sessions that floated to the top look great and, with the votes in, Simone and Ugo have moved right along and created a draft agenda to whet our appetites. Take a look, and let them know what you think. I’d also strongly recommend that you get ready to grab your tickets when they become available next week (specifically, September 18th), as places are going to be snapped up fast. In case you need a reminder as to why Web.NET is worth your time: Complete focus on web development Awesome sessions All-night hackathon Free (although I urge you to make a donation to help Simone and Ugo create the best possible event) Put October 20th in your calendar, and start packing. I’ve already booked my flights, and am perusing the list of hotels while I eat my lunch. Bonus Material There will be a full day of RavenDB training on Monday the 22nd of October, run by Ayende himself, and attending Web.NET will get you a 30% discount on the cost of the session.

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• What is a good way to measure game virality?

  - by Chris Garrett

  I have added some social features to an iPhone game (Lexitect if you're curious), such as email, Twitter, and Facebook integration for sharing high scores. Along with these features, I am measuring how many times users make it to each step. The goal of these features are to make the game more viral, and I am trying to get to a measure of game virality. I would think that a game virality metric would produce a number based on 1.0, where 1.0 = zero viral growth, and 1.01 would represent 1% viral growth over some unit of time. How is virality normally measured, and in what units? How is time capped on the metric? i.e. if I gave each player a year to determine how many recommendations they make, I wouldn't get any real numbers for a year from the time I start tracking it. Are there any standards for tracking virality in a meaningful way?

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• How to install Chrome browser properly via command line?

  - by Bad Learner

  Setting up and managing an Ubuntu server all by myself, in coming months, is a part of my current plans. Hence, I am planning a swtich from Windows to Linux - - Ubuntu. I now need to get some grip on the command line, since I am all used to Windows' GUI. Anyway... the most obvious start is installing apps on my computer, and I thought I should learn to do it via CLI. And this is what I did: $ apt-cache search chrome browser the results showed that the proper term is "chrome-browser," so... $ sudo apt-get install chrome-browser And then "Y" for the Y/n question. But the installation threw errors. (I do not have my PC at hand, so can't mention what error exactly.) Does someone see anything wrong with the commands I issued? I am probably missing some command(s) in between, I think.

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• What are the preferred documentation tools for the major programming languages?

  - by Dave Peck

  I'm interested in compiling a list of major programming languages and their preferred documentation toolsets. To scope this a bit: The exact structure of the answer may vary from language to language, but there appear to be two aspects common to all languages: (1) in-code syntax for documentation, and (2) documentation generators that make use of said syntax. There are also cases where generators are used independent of code. For example, tutorial-style documentation is common in the Python world and is often disconnected from underlying code. Many languages have multiple commonly-used documentation strategies and tool chains, and I'd love to capture this. Finally, there are cross-language tools like Doxygen that also have some traction and would be worth noting here. Here are some obvious target languages to start with: Python, Ruby, Java, C#, PHP, Objective-C, C/C++, Haskell, Erlang, Scala, Clojure If this question catches on, I'll try and keep this section updated with the most recent list. Thanks!

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• E: unable to locate package firmware-b43-installer when i

  - by Raju

  I am using Acer aspire-5002wlmi laptop and set up a dual boot with Windows XP and Ubuntu 12.04. Wifi is well working in XP but when I start Ubuntu I will get the below error. [ 95.514855] b43-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all the instruction on this website. then I followed the instructions from the below link file:///C:/Documents%20and%20Settings/MGL/Desktop/how%20to%20install%20ubuntu/Ubuntu%2012.04%20Splash%20Screen%20Lockup%20with%20LiveCD%20_%20Ben%20Rousch%27s%20Cluster%20of%20Bleep.htm but I am stuck in installing the Broadcom Wifi firmware in terminal and it is showing this error: E: unable to locate package firmware-b43-installer

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• Safe project development - free repositories

  - by friko

  Some time ago we started a private hobby project. We made a project on javaforge.com, created an svn repository and started developing our app. Right now we are really far with our project, but somehow we never worried if our project is really safe on such free development tool like javaforge ? I mean, what if our project would earn some money and the source code become valuable ? Could it be stolen or could somebody take it over ? We want to be sure that we are not wasting our time and want to be really sure about our project safety. Is it possible to safely develop a project in such free repository ? We would like also to start using redmine, so if you know any safe place for moving our project, please take this under consideration. Thanks a lot.

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• Google I/O 2010 - What's the hubbub about Google Buzz APIs?

  Google I/O 2010 - What's the hubbub about Google Buzz APIs? Google I/O 2010 - What's the hubbub about Google Buzz APIs? Social Web 101 Chris Chabot, Marco Kaiser (Seesmic), Ming Yong (Socialwok) Google Buzz is a new way to share updates, photos, videos and more, and start conversations about the things you find interesting. In this session, we'll take a deep dive into building with the Buzz APIs and the open standards it uses, such as ActivityStrea.ms, PubSubHubbub, OAuth, Salmon and WebFinger. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 3 0 ratings Time: 50:37 More in Science & Technology

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• Gaming with ATI open-source drivers

  - by user7174

  I have recently bought humble bundle 2 ( http://www.humblebundle.com/ ). Is there a way to run Braid using ATI's open-source drivers? The game always crashes. When do get it to start in windowed mode once i go to the first level it will crash. I am using the lastest version of Braid (ST3C ignored) When I use the proprietary drivers Braid works flawlessly and World of Goo performance is increased. However there is terrible screen tearing with the ATI propritary drivers. So my question is: How do I play Braid if I want to use the proprietary drivers?

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• Boat passing under a bridge in a 2D tile based RTS

  - by aleguna

  I'm writing a 2D tile based RTS. And I want to add a 'pseudo 3D' feature to it - bridges over the rivers. I havent't start any coding yet, just trying to think how it fits the collision detection model. A boat passing under the bridge and a unit moving over the bridge will eventually occupy the same cell on the map. How to prement them from colliding? Is there a common approach to solve such a problem? Or I need to implement a 3D world to do this?

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• How can I receive more traffic? My VPS fails!!!

  - by Vic

  I have a web site - photo gallery. About 400 photos. Site on Gallery 3. mySQL. Hosted on VPS from myhosting.com (CPU 1792 MHz, 2048 MB RAM). Everything seems to be ok, but there is one big problem. Once traffic reaches ~ 20 people (online) - website start loading really really slow. Actually website can't be loaded about 30-60 sec. What should I do? Buy more RAM / CPU on the same VPS? Move to a dedicated server or maybe myhosting.com just sucks? What do you recommend?

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• How to Forward Local Drives to Remote Machines Using Remote Desktop

  - by Taylor Gibb

  Have you ever had a file on a flash drive that you needed to use on a machine that is situated in another building or even halfway across the world? You can do that by plugging it into your local machine and then forwarding the drive through your remote session to that machine. Here’s how to do it. Press the Windows Key and R to bring up a run box, and type mstsc to launch the Remote Desktop Connection Dialog, or you can just search for Remote Desktop in the Start Menu. Click on the arrow next to options to see some of the more advanced options. How to Make the Kindle Fire Silk Browser *Actually* Fast! Amazon’s New Kindle Fire Tablet: the How-To Geek Review HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS

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• The Best Articles for Backing Up and Syncing Your Data

  - by Lori Kaufman

  World Backup Day is March 31st and we decided to provide you with some useful information to make backing up your data easier. We’ve published articles about backing up various types of data and settings both offline and online. There’s all kinds of settings on your computer to backup in addition to your personal data, such as Wi-Fi passwords, drivers, and settings for programs like web browsers, Office, and Windows Live Writer. There are also many tools available to help you keep your data and settings backed up. Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos HTG Explains: What Can You Find in an Email Header?

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• How do I properly use multithreading with Nvidia PhysX?

  - by xcrypt

  I'm having a multithreading problem with Nvidia PhysX. the SDK requires that you call Simulate() (starts computing new physics positions within a new thread) and FetchResults() (waits 'till the physics computations are done). Inbetween Simulate() and FetchResults() you may not "compute new physics". It is proposed (in a sample) that we create a game loop as such: Logic (you may calculate physics here and other stuff) Render + Simulate() at start of Render call and FetchResults at end of Render() call However, this has given me various little errors that stack up: since you actually render the scene that was computed in the previous iteration in the game loop. Does anyone have a solution to this?

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• Getting Started on Isometric Board Game port

  - by Jehosephat

  I have developed a (off-line) board game that I would like to translate to an online/social game in an isometric grid perspective. My background is in .NET web development, so I'm very comfortable with C#, HTML, jQuery/javascript. Still getting my feet wet with HTML5. I have familiarity with Flash, but I haven't worked with it in years. I'm also interested in working with Azure for hosting the back-end. Ultimately I'd like this game to have persistent leaderboard/achievements and therefore be able to log in through FB and Kong and the like. Obviously, I'm not looking for 'here's exactly how to do all of this'. But I would love some opinions on where to start, particularly given my background and goals. Would be happy to share more details if it makes answering easier! Thanks!

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