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• xmonad keyboard doesn't work

  - by Mikkel Paulson

  I'm experimenting with xmonad, which I installed from the Ubuntu Software Centre on Ubuntu 12.10. It looks cool, but when I invoke it (using xmonad --replace from the command line) my title bars disappear and my keyboard stops working. At all. The terminal stops working, the keystrokes I've seen in online "getting started" guides are ignored, and the only way for me to actually power the system off is to hit the reset button or ssh in from my phone. Ironically, my mouse still works. One guide I saw suggested replacing the default window environment with xmonad, but I'm afraid of rendering my system completely inoperable if I do that. Any suggestions?

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• Bluetooth mouse lag on high cpu load ubuntu 11.04 12.10

  - by sirkubax

  I have just migrate to Ubuntu 12.10 and I have noticed that I have huge problem with my bluetooth mouse left click button on a high load (wired, but scroll and right button are not affected) (I think powersave cpu mode affect that more than cpu load) It just not "trigger the interrupt". Mouse is laggy, click are not reggisterd. I can not work like that. At the same time, my touchpad and usb mouse works great. How to check that - limit cpu frequency (I use powersave and ondemend mode) I now wonder, what should I log, check, measure, to capture enough data to fill bug report. Any suggestions? greetings sirkubax

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• Very High CPU usage (100%) from just browsing the Web

  - by cole

  I tested on Firefox and Chromioum. Im at 100% while loading pages which causes them to load slow and when I dont have a application running Im at 40% CPU (At least) Everything is slow basically. Im also already on Ubuntu Classic so im not using Unity. Should I go to 10.04? is that more stable? On windows this wasnt an issue. I have a Dual Boot with XP and a 2.4Ghz Intel Celeron with 768MB RAM and an Nvidia 6200 Graphics card. I heard 10.04 was the most stable. any suggestions?

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• ecommerce options for 5-6 products

  - by Calum

  Hi, We're looking to develop a simple e-commerce solution to sell 5-6 products. We'd rather not have to use PayPal's buttons (buy it now!) if there's an existing alternative, but would also for budget/time constraints don't want to roll our own. Are there any small, basic ecommerce solutions available that would allow this? I did look at Foxy Cart but the monthly fee was a bit of a turn off. (I must sound extremely fussy I'm aware!) Something like Zen would just be overkill for our needs. Thanks for any suggestions.

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• Any good web frameworks for asynchronous multiplayer games?

  - by Steven Stadnicki

  I'm trying to craft a site for web-based (original) board games, and my client (currently written in Actionscript, but that's highly fungible) works fine - I can play solitaire games in the client - but it has nothing to connect to. What I'm looking for is a server framework for handling accounts/authentication and game tracking: something that would let players log in, show them a list of their current games, let them invite friends to new games, let them make moves in the games they have open, etc. I'm flexible on language; obviously I'm going to have to write a lot of server code to handle the actual game logic, but that should be straightforward enough. I'm more concerned with how to handle the user (and game) DBs, though suggestions for a good server framework for communicating with the DBs (and serving up, most likely, JSON for client communications) are also welcome. Right now my leaning is towards Ruby (probably with Rails) but as far as I can determine it would be a pretty good chunk of effort to set up the necessary databases, so having something even higher-level would be really useful to me.

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• Android frame by frame PNG animation

  - by Trick

  I am new at Android game development. I have done some apps before, but none of them are games :) So, I wanted to do a frame-by-frame animation of PNGs. I tried with AnimationDrawable, but OutOfMemory error comes quickly (I have a lot of PNGs). So I came upon SurfaceView. But I am stuck, because I really don't find any useful tutoirals/examples. What is the best way to make an animation like this? Here there already is a great answer to almost the same question, but all the links there don't work anymore. I would really like to here suggestions how to make an animation frame-by-frame with PNGs in Android and if you have any tutorials or examples, I will be really happy :)

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• How can we integrate use of a foreign language into an internship?

  - by ChrisRamakers

  We have a few interns here that have orders from college to integrate speaking, reading, and writing French into their internship. All of them are working on developing their own web application, and I'm wondering how we can integrate French into their projects. Here are some things I've come up with: Translate the whole project front-end to French Write French documentation for the project Promote the application in a French community Speak French (exclusively?) to our project managers Any other ideas or suggestions? Does anyone else have experience with this?

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• What kind of installer should I use?

  - by crosenblum

  I need a program installer for window's that is free or open source, that is somewhat customizable, but creates very small installer files. I would be using this to create a mmorpg game client installer, for my private server. And I'll need to this repeatedly once my server goes live to help keep my player's up to date with server changes. Any suggestions? I have tried NSIS, but i really didn't like it, too hard to do. I am also concerned about file sizes... Any thoughts?

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• How can I reach over 100% volume with a keyboard shortcut?

  - by suli8

  sometimes the sound of videos isn't enough for me. so i reach the sound indicator , over sound preferences and change it to a level higher than 100%. the question is how can i do it from the keyboard? now i can control the volume from the keyboard but it's maximum is 100%. is there a way to do that? EDIT 1: how to use amixer and scripts to do it? (as Lyrositor suggested) EDIT2: the closest answer , as Jo-erland, suggested is to set a hotkey to bring up the gnome-volume-control, and then to use left and right arrows to change volume also beyond the 100% mark. any other suggestions, to make this 1 step only? is it possible to set a hotkey to do a sequence of commands ?

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• Are two database trips reasonable for a login system?

  - by Randolph Potter

  I am designing a login system for a project, and have an issue about it requiring two trips to the database when a user logs in. User types in username and password Database is polled and password hash is retrieved for comparative purposes (first trip) Code tests hash against entered password (and salt), and if verified, resets the session ID New session ID and username are sent back to the database to write a row to the login table, and generate a login ID for that session. EDIT: I am using a random salt. Does this design make sense? Am I missing something? Is my concern about two trips unfounded? Comments and suggestions are welcome.

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• Fixed Sized Buffer or Variable Buffers with C# Sockets

  - by Keagan Ladds

  I am busy designing a TCP Server class in C# that has events and allows the user of the class to define packets that the server can send a receive by registering a class that is derived from my "GenericPacket" class. My TCPListener uses Async methods such as .BeginReceive(..); My issue is that because I am using the .BeginReceive(); I need to specify a buffer size when I call the function. This means I cant read the whole packet if one of my defined packets is too big. I have thought of creating a fixed sized Header that gets read using .BeginRead(); and the read the rest using Stream.Read(); but this will lead to the whole server having to wait for this operation to complete. I would like to know if anyone has come across this before and I would appreciate any suggestions.

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• Cleaning a dataset of song data - what sort of problem is this?

  - by Rob Lourens

  I have a set of data about songs. Each entry is a line of text which includes the artist name, song title, and some extra text. Some entries are only "extra text". My goal is to resolve as many of these as possible to songs on Spotify using their web API. My strategy so far has been to search for the entry via the API - if there are no results, apply a transformation such as "remove all text between ( )" and search again. I have a list of heuristics and I've had reasonable success with this but as the code gets more and more convoluted I keep thinking there must be a more generic and consistent way. I don't know where to look - any suggestions for what to try, topics to study, buzzwords to google?

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• What top companies look for in an Interview?

  - by Geek

  Basically I am looking for what is it that you goof up and you are out from the remaining process ? Are elimination rounds a fair way to judge a person ? Anyone can have a bad hour :-( Should you code the best possible or should you get the Algorithm right ? I generally first code a workable solution and then work on it till a level I think it looks beautiful to me. Is this a wrong approach ? Recently I had a telephonic interview in which I was asked to write a variation of Level Order traversal in 20 minutes. I could get the Algorithm and working code in 20 minutes but couldn't get the Exception handling and the coding convention right, after which I didn't hear back from them :-( All the other questions in the interview went very well this was the only thing which was 'not upto the mark'. Needless to say I like the company and will apply again but want to get it right the next time :-) Please share your experiences and valuable suggestions.

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• Ubuntu 12.10 over Ubuntu 11.10 seems to hang

  - by Angela Trapp

  My installation of Ubuntu 12.10 over Ubuntu 11.10 seems to hang on "saving installed packages". How long should I wait before knowing for sure that something is wrong? I stopped it once and tried re-installing but am getting the same results. I'm installing from a USB stick. I'm connected to the internet using a wired connection but I'm reading here to connect to a wi-fi network while installing. Could this possibly be the issue? I can't install using wi-fi at the moment as my router was fried in a brownout yesterday. I've ordered another router online so as soon as it gets in, I'll try again. Any suggestions are appreciated! Please let me know if you need more information. It's a 32-bit installation and I have 1 GB of memory. Thanks!

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• design for a parser to handle very large files

  - by user619818

  I have written a program which records protocol messages between an application and a hardware device which matches each application request with each hardware response. This is so that I can later remove the hardware, connect a 'replay' application to the main application and wait for an application request and reply with a matched copy of the requisite hardware reply message. My replay application saves the matched request/response in a list (using C++ std::list). This works fine on a small interaction session. My problem now is that I need to be able to use the replay over a long long session. With my current implementation, the replay program eventually uses up all available memory on my computer and crashes. So I need some sort of lookahead - and not parse the whole session in one go. Can anyone make any suggestions on how to get started?

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• Data Loading Issues? Try the new Demantra Data Load Guided Resolution

  - by user702295

  Hello!   Do you have data loading issues?  Perhaps you are trying the new partial schema export tool.   New to Demantra, the Data Load Guided Resolution, document 1461899.1.  This interactive guide will help you locate known solutions to previously discovered issues quickly.  From performance, ORA and ODPM errors to collections related issues that have no known hard number error.   This guide includes the diagnosis of data being imported into Demantra and data being exported from Demantra.  Contact me with any questions or suggestions.   Thank You!

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• Searching for a page with a Very Unique title, doesnt find that intended page... Why?

  - by Sam

  Dear folks, a question about appearing in search results in google: A page of mine has this extremely unique page title: Ein gutes Logo passt wie ein Handschuh auf Ihre Marke in die Hände Now, when I search the phrase: Ein gutes Logo passt wie ein Handschuh auf Ihre Marke in die Hände Then all kinds of other irrelevant pages show up having only 1 or at best two words from my unqie title appearing, although I have searched for the entire phrase! And when I search the phrase in between quotes: "Ein gutes Logo passt wie ein Handschuh auf Ihre Marke in die Hände" Then it finds 1 result, which is my page. What is going on? Why doesn't show the unique result without the quotes? Thanks: your ideas and suggestions are welcome and much appreciated

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• MVC .Net, WebMatrix talk presentations and webinars

  - by subodhnpushpak

  I presented sessions on MVC .Net and webmatrix. I covered stuff like what’s new in MVC .net and the architecture goodness of MVC pattern. I also demonstrated how MVC 3 / MVC 4 harness HTML 5 / mobile along with Jquery and Modernizr.  PHP coding using MVC and Webmatrix and other advanced stuff like hosting PHP on windows or porting MYSQL Db to MSSQL is also is also part of the demo in the sessions. The slide decks are available at below link and all the demo is recorded and also shared at below link.   WebMatrix View more presentations from Subodh Pushpak.   WebMatrix2 View more presentations from Subodh Pushpak.   The recordings / Demo can be accessed at and If you have any suggestions / ideas / comments; please do post.

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• Best gui toolkit to use for creating 3D board game

  - by UserInteractive

  I have created a board game using Java and Swing - using GridLayout and various other apis. It works properly but the UI looks very very simple. I would want couple of animations like tilting the GridLayoutat any angle. There are pawns on boxes of the GridLayout that I want to be animated when somebody clicks on it. I'm not sure of the right GUI toolkit to use for this. Swing repaint is possible to a limit and cannot be used for a lot of animation and graphics. And I realized after creating the game that Swing is probably not a good tool to create games. Could anybody suggest a better framework to use that I can use it in Eclipse with Java? I was thinking of JavaFX or tools like Adobe Flash or Adobe Air. Any suggestions please?

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• Today is my first day in the land of backbone.js

  - by Andrew Siemer - www.andrewsiemer.com

  I am semi-excited to say that today is my first day into the land of backbone.js.  This will of course take me into many other new javascript-y areas.  As I have primarily been focused on building backend systems for the past many years…with no focus on client side bits…this will be all new ground for me.  Very exciting! I am sure that this endeavor will lead to writing about many new findings along the way.  Expect the subject of near future postings to not be related to MVC or server side code. I am starting this journey by reading through the online book “Backbone Fundamentals”.  http://addyosmani.com/blog/backbone-fundamentals/  Has anyone read this yet?  Any feed back on that title. I have read though Derrick Bailey’s thoughts here and here…also very good. Any suggestions on other nuggets of learning backbone?

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• What features would you like to have in PHP? [closed]

  - by StasM

  Since it's the holiday season now and everybody's making wishes, I wonder - which language features you would wish PHP would have added? I am interested in some practical suggestions/wishes for the language. By practical I mean: Something that can be practically done (not: "I wish PHP would guess what my code means and fix bugs for me" or "I wish any code would execute under 5ms") Something that doesn't require changing PHP into another language (not: "I wish they'd drop $ signs and use space instead of braces" or "I wish PHP were compiled, statically typed and had # in it's name") Something that would not require breaking all the existing code (not: "Let's rename 500 functions and change parameter order for them") Something that does change the language or some interesting aspect of it (not: "I wish there was extension to support for XYZ protocol" or "I wish bug #12345 were finally fixed") Something that is more than a rant (not: "I wish PHP wouldn't suck so badly") Anybody has any good wishes? Mod edit: Stanislav Malyshev is a core PHP developer.

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• Whats a good setup/toolchain for a project?

  - by acidzombie24

  I was thinking, what is needed for a good setup and what are good (free) tools to use? Some of what i came up with are Bug tracking Some good (distributed:P) source control (which means no svn fellas) automated nightly builds or a continuous integration (or anything that automates builds and possibly sends emails when there are build errors) wiki to document decisions, road map or milestones. Something to backup assets (art, sound, etc) What else? and do you have suggestions for any of the above? i pretty much clueless of all of these except for source control

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• Caption Competition 9: Carry on Captioning

  - by Simple-Talk Editorial Team

  This picture below – the one with the rabbits, yes – is clearly something to do with databases. But what? Tell us in the comments – the best / funniest entry wins a $50 Amazon gift card.  Some suggestions to help turn on the comedy tap: The world’s first self-replicating cryptocurrency was hit by hyperinflation almost immediately. Early punchcard computers were ineffective but adorable. Elmer Fud teams up with Wile E Coyote to create the ultimate drop database. You can beat that. A child could beat that. Prove it in the comments below.

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• HD Video Peformance Unacceptable

  - by Mike Hasselbeck

  Was wondering if anyone could help me boost HD 1080p video performance on my machine? I've got an AMD Athlon X2 Dual Core processor, 2 gb RAM & an ATI Radeon 5450 video card. I've installed the latest ATI Catalyst drivers, I installed the hardware acceleration things and linked them (I believe) to VLC. Still, it's still not running as well as I would like. Any thoughts or suggestions? Any help would be much appreciated. Thanks!

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• How to properly URL/domain forward

  - by NRGdallas

  No clue on a title for this, someone feel free to suggest an edit. I have a client that has a website. He owns around 200 domains, and wants each domain to contain content from the main website. The header, footer, and navigation bars will remain the same for each domain, but the actual page content will vary (obviously duplicate content issues, open to suggestions) He wants each individual page to be its own separate domain, rather than a url within the main domain. (page1.com page2.com etc - NOT site.com/page1.html, however the file is actually hosted at site.com/page1.html - all links will direct to site.com/whatever accordingly) What would be the best place to start reading / learning on how to do this, and what concerns/considerations should be taken into mind?

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