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• Weird sound problems after upgrading to 13.10 (macbook)

  - by Atsch

  I have been having a very weird problem with my sound lately: 1)My right channel is extremely disorted with relativly loud noises, tested with several headphones. 2) After a while, wiered noises start coming from my speakers 3) playing lots of sounds at once causes the the output to become really mushed, e.g. in lmms or games. all points to a: a fault in my sound card, or b: a fault in alsa or pulseaudio, but I don't know how to find out. I will now try using the alsa-daily, and edit this away depending on my results after a restart

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• How do I get my Mac to boot from an Ubuntu USB key?

  - by user11621

  If you select "USB" and "Mac" on this download page, it gives a series of command line instructions to make a USB key which the MacBook will boot into Ubuntu from. I've followed them to the letter two or three times on different USB keys, and it doesn't work. There's a very great deal of technical discussion about EFI etc. but this set of instructions seems to suggest it should just work, but it doesn't. Help? I'm increasingly unhappy with the more locked-down approach Apple is taking, and I'd quite like to start using Linux with a view to transitioning over to using it as my main operating system, but booting from the CD takes forever, runs slowly and I'm really hoping to get it moving off USB. Can anybody help me?

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• Working in America from the UK

  - by thedixon

  I've been toying with the idea for the last few years and I figured it was about time to start asking questions about it! Here goes: I'm a Senior-level .NET/C# programmer from the UK, with 7 years of commercial experience in industry and looking to work over across the pond in the big ol' USA! This is with a view to live there on a permanent basis. My idea is to try and set up some interviews and go over there for a week to attend them, then I guess wait for responses in hopes they'd sponsor me for a working VISA. I'd like to know is there anyone out there with any experience of doing the same thing? Was it difficult finding work? Is there anything I should know before embarking on this route? How long did the transition take? Update: Considering the down votes, either I've posted this in the wrong place, or people really don't like my query. If so, please shed some light.

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• Row Versioning Concurrency in SQL Server

  The optimistic concurrency model assumes that several concurrent transactions can usually complete without interfering with each other, and therefore do not require draconian locking on the resources they access. SQL Server 2005, and later, implements a form of this model called row versioning concurrency. It works by remembering the value of the data at the start of the transaction and checking that no other transaction has modified it before committing. If this optimism is justified for the pattern of activity within a database, it can improve performance by greatly reducing blocking. Kalen Delaney explains how it works in SQL Server.

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• Decrementing/Incrementing loop variable inside for loop. Is this code smell?

  - by FairDune

  I have to read lines from a text file in sequential order. The file is a custom text format that contains sections. If some sections are out of order, I would like to look for the starting of the next valid section and continue processing. Currently, I have some code that looks like this: for (int currentLineIndex=0; currentLineIndex < lines.Count; currentLineIndex++ ) { //Process section here if( out_of_order_condition ) { currentLineIndex--;//Stay on the same line in the next iteration because this line may be the start of a valid section. continue; } } Is this code smell?

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• I can't log into my ubuntu 12.04

  - by user292674

  When I try to log in on my Ubuntu 12.04 it goes to a black screen ( of logging in checking stuff ), and says Checking battery ----- [ok] ( I'm using a computer instead of a laptop ) and just goes back to the login screen. Two days before I executed the command sudo startx trying to start KDE, but it didn't work. And after logging off and trying to log in again, I had this problem. A big problem is that I don't have internet connection at home. What should I do?

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• Limiting what resumes computer from suspend

  - by user1399195

  I'm having a ton of trouble getting Suspend to work with my laptop. I want to start using Ubuntu but this is a pretty important aspect since I take my laptop with me everywhere. Anyways, I wanted to narrow down the possible problem with my laptop. What happens is that when I suspend my computer, within seconds, it just boots back up. I have changed /proc/acpi/wakeup to where everything is disabled but that did nothing. Is there a way where I can disable every feature from waking up the laptop except the power button?

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• Good choice of languages for making a program that manages and organizes business? [closed]

  - by Ronney P

  I've been reading questions and discussions on this website but haven't made an account to start talking or asking anything I had doubts in so please bare with a newbie here. What are specific languages that have are able to make a program that will record, and organize things such as hours, salaries, payments? Also solve business problems, mostly with payments, how much money there will be after interest, taxes and such. Anyway, I've been looking into COBOL, C++, Java, HTML, JavaScript, VB.NET and a couple more. Which ones should I focus on and look into more? I very much appreciate any answers. Thank you.

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• How to Choose the Proper Keywords For Your Website?

  The start point for your online business is taking the time to develop a list of keywords related to your website; however, you may get thousands of keywords that really need a lot of research and can take your website to a various directions, so your task here, is to find just those that are vital and effective for your website. For creating an effective and well balanced website that works for your needs, you must analyze the terms you have listed in a matrix or a chart; there are several stuffs to look for in doing this...

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• Transparent Data Encryption (TDE) in SQL Server

  There are several ways to implement encryption in SQL Server; Arshad Ali focuses on Transparent Data Encryption (TDE), which was introduced in SQL Server 2008 and is available in later releases. 24% of devs don’t use database source control – make sure you aren’t one of themVersion control is standard for application code, but databases haven’t caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out…

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• How does one get Bluetile on 12.04?

  - by JKN

  I've been working on getting bluetile working on 12.04 so I can start down the path of tiling windows managers, but I have been having limited success. I have read the (only 7!) other posts on bluetile and tried the website, but unfortunately nothing seems to address precise thoroughly enough for me to get it working. I have tried getting gnome running on my machine via apt-get and following basic instructions from there, but without success. The apt-get for bluetile also fails (on selecting the gnome-bluetile session option, unity ends up opening anyway in a buggy, unstable way). I also messed around with specifying a custom xsession for lightdm to look at and setting the window-manager to bluetile, but again without success- somehow I ended up in unity again. Apologies if this question is too vague- I am new to really using linux systems, so sometimes I don't know what to ask or look for. Thanks!

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• Unable to stop TOSHIBA TransMemory

  - by user66498

  I have a USB,when I choose safety remove, occur this error message.How to solve the problem? Unable to stop TOSHIBA TransMemory Error detaching: helper exited with exit code 1: Detaching device /dev/sdb USB device: /sys/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2) SYNCHRONIZE CACHE: synchronize cache(10): Fixed format, current; Sense key: Key=9 Additional sense: Logical unit not ready, cause not reportable Info fld=0x0 [0] FAILED: No such file or directory (Continuing despite SYNCHRONIZE CACHE failure.) STOP UNIT: start stop unit: transport: Host_status=0x07 [DID_ERROR] Driver_status=0x00 [DRIVER_OK, SUGGEST_OK] FAILED: No such file or directory

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• Can't Reboot into Windows 8.1 from Ubuntu

  - by Extended Range

  I am newb in Ubuntu. Currently I am using an Acer V11 laptop with a pre-intalled Windows 8.1. I follow some guideline (http://www.everydaylinuxuser.com/2014/05/install-ubuntu-1404-alongside-windows.html) which successfully install Ubuntu 14.04 LTS alongside Windows 8.1 with UEFI enabled all the way throughout the installation and my current usage and a GRUB. But I got into some problem. The dual boot mostly works fine as I am able to successfully boot into either one of the Windows 8.1 or Ubuntu when stating my laptop. However it ran into issue after I start the device and use Ubuntu for a while (2 hour for instance) and then restart it: If I press the restart from Ubuntu, the grub still shows and I am still able to choose the Windows Boot Manager. But the Windows loading process was stuck at the Acer Loading Screen and I am not able to see the standard circular Win8 loading progress bar. Does someone know why would this happens?

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• Any tips/tricks/resources on actually TEACHING a class on OOP? [closed]

  - by Sempus

  I may slowly be getting into teaching an Object-Orientated Programming class at my school in a year or two. I just graduated and work at my school as an Application Programmer. I'd first start off as a TA/grader and then slowly move into the Professor role. The class would be in Java. I always see resources on this fine site about HOW to program, but does anyone know any tips/tricks/resources on how to TEACH a programming class? It would be full of all different skills levels(but still semi-technical) so it would have to be a little more understandable than if it was just CS kids.

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• Can Tutorial "Dual Boot Windows 7 & Ubuntu 12.04" Used for Dual Booting Windows 8 & Ubuntu 12.10?

  - by Shyuan

  I previously used this tutorial to dual boot Windows 7 and Ubuntu 12.04 perfectly. Now I have upgraded my Windows 7 to Windows 8. And I would like to do a fresh install (and start all over again like the tutorial) of Ubuntu 12.10 replacing existing Ubuntu 12.04. I like the way the tutorial presents thus can anyone kindly let me know if the tutorial is compatible with what I wanna do now? I have tried doing little research whether this has been asked, but all I got are not too similar to my question, if there are topics like this I do apologise and feel free to close it. Hope to hear from the community. Thank you so much. :)

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• Where to upload my small apps or codes

  - by user108386

  My question is simple, but I couldn't found a good answer to it. Where to upload my code and my apps? I searching for a place where people find them. Homeworks, hobby projects, little helper scripts, and other open-source stuff. Does it depend on the used technology? I know, there are a lot of subversioning and project hosting systems. But where to start? I don't really know what I'd like. Maybe a wiki-post in the topic with paragraphs like: Upload you open source Winforms app to somesite or If you want to develop a Java library with your friends , use someothersite or Freeware stuff's best place is: ...

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• Lost in Code?

  - by Geertjan

  Sometimes you're coding and you find yourself forgetting your context. For example, look at this situation: The cursor is on line 52. Imagine you're coding there and you're puzzling on some problem for some time. Wouldn't it be handy to know, without scrolling up (and then back down again to where you were working), what the method signature looks like? And does the method begin two lines above the visible code or 10 lines? That information can now, in NetBeans iDE 7.3 (and already in the 7.3 Beta) very easily be ascertained, by putting the cursor on the closing brace of the code block: As you can see, a new vertical line is shown parallel to the line numbers, connecting the end of the method with its start, as well as, at the top of the editor, the complete method signature, together with the number of the line on which it's found. Very handy. Same support is found for other file types, such as in JavaScript files.

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• software development tools or technology [closed]

  - by user1783508

  Are there any technology or tools in which I can do ; * software requirement documentation * software design documentation * software test documentation * uml feature ( use case , flow chart, sequence diagram etc. ) EDIT : I want a tools like Eclipse. To be more precise, I can start many project via using same tool/technology. ex : [-] project1 [-] requirement [-] design [-] test [-} project2 [-] requirement [-] design [-] test I can use uml properties in the same tool/technology. After right clicking on the document or as a separate toolbar, it is seen. add ;Uml diagram create use case create class diagram create sequence diagram create flow chart etc.

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• Learning MySQL Query optimization

  - by recluze

  I've been doing web/desktop/server development for a while and have worked with many databases (mysql mostly). I've come to the point in my career when I need to have someone look at my queries because they're 'kind of slow'. I believe it's now time to start learning query optimization. While I know the basics of index and joins etc., I'm not familiar with how to use, say, the EXPLAIN output to improve performance of my queries. I have not been able to find any online material that starts with the basics and takes me to application. Getting a book is not an option right now so I'm looking for tips about how to proceed with this. I hope this question is general enough not to get closed.

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• Help with off-game tasks

  - by peoro

  I love writing video games for fun, and often do that. I noticed, anyway, that most of the times implementing the gameplay itself doesn't take too much time to me (maybe because I already did that plenty times and know what and how to do for most of the things), but when I try to implement off-game stuff I get lost. By off-game I mean what is not gameplay: menus, cutscenes between levels, world map to choose levels, saving and loading status, managing replays ... Only tried to write a few of these a few times, but always failed; that's why I never really completed and distributed a game. Are these common problems? And where should I start to do this? Where could I find some books/guides about such stuff?

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• What is w componet [duplicate]

  - by Tifa

  This question already has an answer here: What does the graphics card do with the fourth element of a vector as the final position? 3 answers What is the W component on graphics programming. I read a blog about opengl that says that w must be equal to either 0 or 1 here. But the book I am currently reading has put w component to more than 1 value. So im kinda confuse what does it really do. The book I am reading is OpenGL es a quick start guide.

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• For asp.net mvc is this a three tiered solution?

  - by bbb

  I am a asp.net mvc programmer and if I want to start a project I do this: I make a class library named Model for my models. I make a class library named Infrastructure.Repository for database processes I make a class library named Application for business logic layer And finally I make a MVC project for the UI. But now some things are confusing me. Am I using 3-tier programming? If yes so what is n-tier programming and which one is better? If no so what is 3-tier programming? Some where I see that the tiers namings are DAL and BIZ. Which one is correct according to the naming convention?

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• Advise how to write a simple test for this javascript snippet?

  - by resting

  I'm trying to start unit testing (not using any testing frameworks) for my javascripts. Here's one example of it. var obj = {}; obj.disableBtn = function ($btn, style) { $btn.attr('disabled','disabled').addClass('disabled').removeClass(style); }; The use case is as such: obj.disableBtn($('.submit'), 'btn-blue'); What it does is simply add the disabled attribute, add the disabled class, and remove the btn-blue style. Please advise how would a typical test case look like in this case. I have a little knowledge on testing using assert(), but have no idea how to go about it when it involves verifying the result on HTML elements.

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• Monday at Oracle OpenWorld 2012 - Must See Session: “Using the Right Tools, Techniques, and Technologies for Integration Projects”

  - by Lionel Dubreuil

  Don’t miss this “CON8669 - Using the Right Tools, Techniques, and Technologies for Integration Projects“ session with Timothy Hall - Sr. Director, Oracle: Date: Monday, Oct 1, Time: 3:15 PM - 4:15 PM Location: Moscone South - 308 Every integration project brings its own unique set of challenges. There are many tools and techniques to choose from. How do you ensure that you have a means of consistently and repeatedly making decisions about which tools, techniques, and technologies are used? In working with many customers around the globe, Oracle has developed a set of criteria to help evaluate a variety of common integration questions. This session explores these criteria and how they have been further organized into decision trees that offer a repeatable means for ensuring that project teams are given the same guidance from project to project. Using these techniques, the presentation shows how you can reduce risk and speed productivity for your projects Objectives for this session are to: Discuss common questions that arise at the start of integration projects Review various decision criteria and approaches for getting to a consistent set of answers Explore how these techniques can be used to reduce risk and speed productivity

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• Monday at Oracle OpenWorld 2012 - Must See Session: “Using the Right Tools, Techniques, and Technologies for Integration Projects”

  - by Lionel Dubreuil

  Don’t miss this “CON8669 - Using the Right Tools, Techniques, and Technologies for Integration Projects“ session with Timothy Hall - Sr. Director, Oracle: Date: Monday, Oct 1, Time: 3:15 PM - 4:15 PM Location: Moscone South - 308 Every integration project brings its own unique set of challenges. There are many tools and techniques to choose from. How do you ensure that you have a means of consistently and repeatedly making decisions about which tools, techniques, and technologies are used? In working with many customers around the globe, Oracle has developed a set of criteria to help evaluate a variety of common integration questions. This session explores these criteria and how they have been further organized into decision trees that offer a repeatable means for ensuring that project teams are given the same guidance from project to project. Using these techniques, the presentation shows how you can reduce risk and speed productivity for your projects Objectives for this session are to: Discuss common questions that arise at the start of integration projects Review various decision criteria and approaches for getting to a consistent set of answers Explore how these techniques can be used to reduce risk and speed productivity

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