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• Problems booting Ubuntu 10.10 with Nvdia GeForce 6600gt

  - by SlyrNemesis

  I am quite new to Ubuntu and I already stumbled upon a problem. I run Ubuntu 10.10 Maverick Meerkat now and Install went fine, when trying to boot the screen popped black and I faced this message "gpu lockup - switching to software fbcon." When setting the display to onboard VGA through BIOS Ubuntu has no problem at all, but when I switch back to my AGP card (which is a Nvidia GeForce 6600GT) I get that message again. I do not use VGA for that card I use my DVI cable for it. Does anyone have an answer for me to make this work? Thank you

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• How to redesign the UI of a large project?

  - by jem88

  I'm currently working at a quite big Android project (a social network, you can see it here if is useful to answer the question). We decided to restyle the whole app, changing all the UI design. The code I actually have is complex, there are many controllers, and it's a little messy too. Is it "better" in terms of time and code cleanliness to take one controller per time, and rewrite it entirely, or to modify one controller per time? The layout change entirely anyway, so for that I know I've to restart from scratch. Maybe it could seem a stupid question, but with the "time" variable I really can't see the best way.

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• How do I edit keyboard preferences from the command line?

  - by jumpnett

  I want to swap the Caps Lock and Escape key as specified in this answer: Use the keyboard preferences to swap Caps Lock and Escape - seriously, how often do you use Caps Lock? Using vim you will be using Escape all the time, and having it available on the home row makes a huge difference. With the standard Ubuntu desktop, go through the menus: System - Preferences - Keyboard - Layouts tab. Then hit the "Layout Options" button, click on the triangle next to "Caps Lock key behaviour" and select "Swap ESC and CapsLock". but, I'm using Ubuntu Server with no gui, so how would I do this from the command line?

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• Multiple ( V- / I- ) Buffers, is it sane?

  - by Techie

  Currently I am developing an RTS game using XNA ( / ANX.Framework ). There is one thing bothers me. I am not sure in what way or how to organise Buffers. Should I use a new Vertexbuffer for any object ( e.g. a Char, a Table, an model ) or is it better to use ONE HUGE/ BIG Buffer to store any geometry in? I am still new to 3D Programming though I finished yet couple games using DirectX 9. Well, I hope this question qin't a duplicate and I appreciate any answer leading me into the right direction.

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• How to run just one application over ethernet while others on wifi

  - by db42

  I normally connect my laptop via wifi. However, I would like to use synergy to share my workplace desktop machine with my laptop. But the problem is that my desktop machine doesn't have wireless support. So, I have no other options except using ethernet to connect them. My first question is - Is it possible to use ethernet for synergy and keep using wifi for all other application. If the answer is yes, can somebody please guide me how to achieve this. Thanks,

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• Jumping around to work on different features when you get stuck, is it a source of project failures?

  - by codecompleting

  On personal projects (or work), if one gets stuck on a problem, or waiting to figure out a solution to the problem, if you jump to another section of your code, don't you think it will be a good reason your application will be buggy or worse yet never get completed? Assuming you are not using git and code each feature to a specific branch, things can get out of hand since you have 3 different features you are working on, and you have unresolved issues in each. So when you get done to work, you get stressed out because you have these hanging issues and half-baked code lingering about. What's the best way to avoid this problem? (if you have it) I'm guessing using something like git and creating a branch per feature is the safest way to avoid this bad habit. Any other suggestions?

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• Multiply mode in SpriteBatch

  - by ashes999

  I have a "lighting" texture (black background with white or colours for lights) that I want to draw as a multiplcation operation. SpriteBatch.Begin can specify BlendState.Additive, but there's no BlendState.Multiplicative. I also tried the solution in this answer, but it didn't work -- even when I (incorrectly?) changed the code to work with XNA 4 style ColorDestinationBlend, I ended up with the final solution being inverted (black area where the light is, everything else is visible). I initially thought of a shader, but I couldn't get shaders to work with MonoGame, so I'm falling back to SpriteBatch.

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• Port an existing Quickly app from precise to quantal

  - by Ian B.

  I've developed an app using Quickly on a 12.04 system. In preparation for the 12.10 release, I'd like to have launchpad build a version for Quantal so that it can be used and tested by people from my ppa. I'm not willing to upgrade my system yet (I depend on it for work), how can I do this from 12.04 and my current quickly project? I have a virtualbox with 12.10 installed for testing, but I don't want to copy over the quickly project if I don't have to. Ideally, an answer should work with the quickly submitubuntu command so that it is packaged for installation in the /opt/extras.ubuntu.com directory.

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• Is it better to use a Database or a data structure for network stack?

  - by poly

  I've built a multi threaded messaging application in C and I'm currently using a MySQL Memory table to save the session ID, but I'm not sure whether this was a good decision or not. It works like this, the application sends a message and saves the source session ID in the MySQL table. When the application gets the success response it will remove the session's ID from the MySQL table, or if it received an error response then it will keep the ID to be retried later. I've built it this way so that I don't need to care about building a data structure by myself, and the Database provides flexibility when it comes to querying it. Do you think this is appropriate or do I need to use something else? Please note that the application is expecting to handle a large number of transactions/sec.

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• How would you tackle a pattern-finding program?

  - by Neil

  Just to be clear, I don't think this should be question better suited for stackoverflow.com simply because there's not a single answer but a wide range of possible solutions, making this question far more subjective in nature. I was curious how you guys would tackle a pattern-finding program, which is to say I'd do the following operations: I enter in some input. Program predicts my next input based on all previous inputs. Rinse. Repeat. Since the amount of input I could provide is so varied, including empty strings, conventional means such as switches or regular expressions are out, since it would require you to have an inkling of information about what to expect. I was thinking about some form of genetic algorithm, yet even then I don't have a clue as to how to approach a problem of this caliber. I think some feedback mechanism would be necessary as well as to let the program know how close it was. Anyone had to do a similar type program before?

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• Event Aggregator.. not getting a response, how to determine completion?

  - by Duncan_m

  I'm rewriting a vehicle tracking application, a google maps based thing.. The users are able to search for a vehicle by typing a few characters of the vehicles "callsign". My application is based around a sort of "event bus" within Backbone.. when a search occurs I send a message on the bus saying something like "does anyone match this?".. If a marker matches the search term it responds with a sort of "yes, I match!".. My challenge arises when no-one matches, I get no response.. it feels a little hacky to "wait a little while" and check if a response has been recieved.. The application is based around Backbone.js and using the Event Aggregator pattern described in the answer to this question on Stack Overflow: http://stackoverflow.com/questions/7708195/access-function-in-one-view-from-another-in-backbone-js Is there a well defined design pattern that might assist me here? Sending a request for a response and not getting any responses?

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• Are there studies about the disadvantages of using issue tracking systems? [closed]

  - by user1062120

  I don't like issue tracking systems because: It takes too much time to describe issues in it. This discourage its usage. You create a place to keep your bugs. And if there is a place for them, people usually don't care too much about fixing a bug cause they can put it there so that someday someone can fix it (or not). With time, the bug lists gets so long that nobody can deal with it anymore, taking up a lot of our time. I prefer handling issues using post-its on a white board, face-to-face conversations and killing important bugs as soon as they appear. I don't care too much to keep track of bug history because I don't think that it is worth the overhead. Am I alone here? Are there studies (book/article/whatever) about the disadvantages (or great advantages) of using issue tracking systems?

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• Can't boot ubuntu 12.04, stuck in busybox. Can't view files from ubuntu trial disc, or windows partition

  - by Maura

  So, I'm slightly computer literate, and find myself frustrated and overwhelmed. My computer is a acer laptop, extensa 5620-6572. I have a dual boot with windows vista and ubuntu 12.04. The ubuntu 12.04 I got was from an upgrade, not a disc. I tried to load ubuntu 12.04, and it gets stuck in the "busybox", and I don't know how to proceed from there. I went to my windows partition and downloaded Ex2 from http://sourceforge.net/projects/ext2fsd/ and thought I'd try access my files and save them to a external HD. Then when I restarted my computer and went to windows, it always freezes after it loads the OS. So then, I downloaded and burned a ubuntu 12.04 boot disk, and the disk works fine. But I still can't figure out how to view files on my harddrive.

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• How do I render an entire frame to a Texture2D?

  - by redcodefinal

  I asked a question here: C# XNA Make rendered screen a texture2d But, I ended up not getting the exact result I was looking for since I didn't ask the question right. In a game I am writing, I render an extremely large city out of objects, this can cause lag when moving the camera to view things that are off screen. I need a way to render then ENTIRE city, even the stuff that is off screen, and make it into a Texture2D. The answer I chose for the last one didn't work entirely right because it only gets what is on screen, not what is off.

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• June 13th Webcast: Common Problems Associated with Product Catalog in Sales

  - by Oracle_EBS

  ADVISOR WEBCAST: Common Problems Associated with Product Catalog in SalesPRODUCT FAMILY: Oracle Sales June 13 , 2012 at 12 pm ET, 10 am MT, 9 am PT This session is recommended for technical and functional users who are having problems with product categories and items not showing up in Sales products after setting up the Advanced Product Catalog.TOPICS WILL INCLUDE: Common problems associated with using Advanced Product Catalog in Sales. A short, live demonstration (only if applicable) and question and answer period will be included. Oracle Advisor Webcasts are dedicated to building your awareness around our products and services. This session does not replace offerings from Oracle Global Support Services. Current Schedule can be found on Note 740966.1 Post Presentation Recordings can be found on Note 740964.1

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• ASP.NET - Password Strength Indicator using jQuery and XML

  Last week, I had the opportunity to help implement and integrate a strong password policy into the legacy web application developed using ASP technology. The solution I proposed was to use jQuery to display the password strength meter to help users create strong passwords. One of my colleagues asked if we would have to modify multiple pages and files if the client decided to alter the password policy. The answer is no. Thanks to jQuery, the client-side script and code behind can share the same information. The password policy information is stored in an XML file and the client-side script and code behind are reading from this to perform the password strength validation.

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• What are steps in making an operating system in C ? [duplicate]

  - by ps06756

  This question already has an answer here: Compiler/OS Design - Where to start [closed] 3 answers I am trying to make an my own OS. This is for educational purpose only, so that I get to understand the internals as well as get a good idea of low level programming. I have some prior application development experience in C#/python/C++/C. I am a noob in assembly language(very less experience and knowledge). I understand that in writing an operating system,we can't go without assembly language. Currently, I have just printed a string in assembly language in the boot sector using qemu and BIOS interrupts. What I want is that, can someone specifically point out the steps that I need to follow to make my operating systems run C programs. So that, I can start writing my OS in C. Any other piece of advice to help a newbie, regarding the same is also welcome. Although, I have looked into many os development related tutorials/websites, I can't seem to find this information anywhere.

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• Big delay to open web pages on Ubuntu 11.10; also slow torrent client speed

  - by user54234

  The keywords for my issue are too common among other issues, so, I couldn't find anything that could answer me: why will it take around 30+ seconds for any of my browsers to open a page? happens even with google.com... with both Firefox and Chromium. This does not happen while I use Windows, from exactly the same point at my house (I've got enough wi-fi signal here for sure). Also, the standard torrent client won't hit the max download speed... I can hit 1 Mb/s with utorrent on Windows, and can't go over 300 kbps here. I tried changing the program settings, no results. Please help me. I REALLY don't wanna go back to Windows. Thanks in advance, I admire this community, and I'm sorry that I couldn't find something that could help me. I already solved a lot of issues without asking, but couldn't do it this time.

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• using static methods and classes

  - by vedant1811

  I know that static methods/variables are associated with the class and not the objects of the class and are useful in situations when we need to keep count of, say the number of objects of the class that were created. Non-static members on the other hand may need to work on the specific object (i.e. to use the variables initialized by the constructor) My question what should we do when we need neither of the functionalities? Say I just need a utility function that accepts value(s) and returns a value besed solely on the values passed. I want to know whether such methods should be static or not. How is programming efficiency affected and which is a better coding practice/convention and why. PS: I don't want to spark off a debate, I just want a subjective answer and/or references.

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• Great F# getting started online book

  - by MarkPearl

  So I have been battling around with F# for a few weeks and it has been frustrating just getting my brain around the syntax etc. Then someone put a comment on my blog that I should check out the following online book called the F# Survival Guide. I highly recommend those wanting to get into the basics of the language to go through this resource. It is easy to understand, especially for someone coming from a C# background. Give it a read… it gets a two thumbs up from me!

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• CPU heating up too much and locking the notebook [12.10 32bits]

  - by Lucas Coutinho

  I have an AMD A6-3400m. When installing ubuntu 12.10 the CPU gets too hot. When I go to see the cpu usage not see anything unusual. I think she is working at or above the specifications of the cpu. I can not finish the installation because the notebook warms both the system disarms and the cooler is maximum. Do not know if it's just me but I never had a good experience using Linux on AMD. When I used Intel these problems did not happen. What is happening can? Ps: The laptop works perfectly in Windows 7 Home Premium 64. No crashes, no overheat, simply works.

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• And again... VMware Player 4.0.4 on Ubuntu 12.04 (Precise Pangolin)

  Even with the new version of VMware Player 4.0.4 you are still required to patch their sources. So, same game as last month. Just changing the value of the required version in the kernel patch script of Stefano Angeleri (weltall) and you are done: nano patch-modules_3.2.0.sh Please change line 8 at the top of the script like so: plreqver=4.0.4 Save your modification and then run the following commands: sudo rm /usr/lib/vmware/modules/source/.patchedsudo ./patch-modules_3.2.0.shsudo service vmware restart And again, on first start VMware will present you their EULA which you have to accept, and everything gets back to normal operation mode. Interestingly, one day ago the Ubuntu repositories provided a newer kernel version 3.2.0-25, so everything is running fine for now.

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• How to access functions in extended classes efficiently?

  - by nischayn22

  In PHP I have classes as below class Animal { //some vars public function printname(){ echo $this->name; } } class AnimalMySql extends Animal { static public function getTableFields(){ return array(); } } class AnimalPostgreSql extends Animal { static public function getTableFields(){ return array(); } } Now I have an object $lion = new Animal(); and I want to do if($store == mysql) //getTableFields from class AnimalMySql else //getTableFields form class AnimalPostgreSql I am new to OOP and not sure what is the best way to call the method from the specific class P.S. Please leave a note with the answer to explain the efficiency of the approach

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• Is It Possible for My Router to Wear Out?

  - by Jason Fitzpatrick

  Day after day your humble and hard working router holds your home network together and links it to the greater internet. Is it possible to work it to death? Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-drive grouping of Q&A web sites. HTG Explains: How Antivirus Software Works HTG Explains: Why Deleted Files Can Be Recovered and How You Can Prevent It HTG Explains: What Are the Sys Rq, Scroll Lock, and Pause/Break Keys on My Keyboard?

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• Improving FAQ SEO with multiple pages?

  - by asdfasdf

  I have a client who has over 200 Question/Answer style content blocks. Neither the questions or answers are very long and most of them have almost the same question but with a word or two differentiating themselves from the rest of the questions. Would SEO be helped or hurt if I would to put each QA on its own page with the title of the page the question being asked etc... Or, would that be considered "farming"? If not, what would be the best way (in SEO world) do present all these QAs? Thanks for any advice..

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