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• Installed Ubuntu 14.04. How do I get it working with my new AMD R9 280X. When I run it I get garbage on the display

  - by user289455

  I installed Ubuntu 14.04 on my Gigabyte A88X FM2+ motherboard and A10 7700K processor. Everything worked perfectly. This system is dual booted with Windows 8.1 for gaming and I installed subsequently I installed an AMD r9 280X gpu. Windows was easy. It kept working with the new card installed and I just needed to download and instal the driver. Reboot and it's done. Ubuntu boots into a blank display. I enter the password and can log in. The menu on the left and bar at the top are visible but when I try to open an app, I get blocks and rubbish on the display. My preference is not to remove the card. So, my question is: What would be the procedure I could follow where I can log in using a text based terminal and download and install the AMD drivers.

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• Don’t Panic! Hides Applications, Erases Browser History, and More

  - by Jason Fitzpatrick

  Don’t Panic! is a free and portable Windows application that makes it easy to quickly hide windows, clear document and browser history, and otherwise mask your goofing off. It includes options for hiding and closing applications, clearing browser history as well as recent clearing the Recent Documents menu and the Recycle Bin. Application closure/hiding is governed by as simple blacklist; populate the blacklist and hit the panic button (or the user-customizable panic button shortcut, CTRL+P by default). Don’t Panic! is free portable application, Windows only. Hit up the link below to read more and grab a copy. Don’t Panic! [Portable Apps] How To Make a Youtube Video Into an Animated GIFHTG Explains: What Are Character Encodings and How Do They Differ?How To Make Disposable Sleeves for Your In-Ear Monitors

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• Should I keep separate client codebases and databases for a software-as-a-service application?

  - by John

  My question is about the architecture of my application. I have a Rails application where companies can administrate all things related to their clients. Companies would buy a subscription and their users can access the application online. Hopefully I will get multiple companies subscribing to my application/service. What should I do with my code and database? Seperate app code base and database per company One app code base but seperate database per company One app code base and one database The decision involves security (e.g. a user from company X should not see any data from company Y) performance (let's suppose it becomes successful, it should have a good performance) and scalability (again, if successful, it should have a good performance but also easy for me to handle all the companies, code changes, etc). For the sake of maintainability, I tend to opt for the one code base, but for the database I really don't know. What do you think is the best option?

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• Framework for interaction between web-page and server-side script

  - by Carrier

  I want to make a web-page that will have several controls elements, among which there are elements like check-boxes, radio-buttons, "range selectors" (one can specify the min and max value, like it is done when you select range for prices in the online markets). The new values shall be sent to the "server-side", once changed (without any Submit buttons etc), and the "server-side" can return something (one or more numbers, etc). Does anyone know a good ajax-like framework that allows (with minimal adaptation / changes) to make such solution in an easy way? It will be good if the server-side of existing solution will be in Perl (not a big deal, but I know it much better than PHP or something else). Set of controls might change and depend on other parameter, so adding one extra element should not cause rewriting the whole thing. P.S.: I haven't working in this area for quite a while, so not aware of existing solutions in this area, and don't want to invent the wheel and write everything from scratch for something that already exist (at least, I hope so). Thanks in advance!

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• Is it possible to boot without mounting /home?

  - by Exeleration-G

  I want to backup my /home partition on /dev/sda6 using partclone, a command line utility. To do so, I first have to unmount the partition that I want to backup. Most of the time, this is easy, but /home is used by so many processes that it can't be unmounted without first killing all those processes. So, the thing I'm looking for is a way to boot Ubuntu, without mounting /home, so I can back up the not-mounted /dev/sda6 partition. Is that possible? To be clear, it would be nice if this special boot could be 'one-time-only'. So I'm not looking for ways to change /etc/fstab in such way that /dev/sda6 won't be mounted. That's because that would require me to change /etc/fstab twice each time just to make a backup. I'm aware of the fact that there are other backup solutions available, such as deja-dup. I'd like to use partclone, though.

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• Are there Any Concerns with Importing Document Files From a Competing Product?

  - by Thunderforge

  I have a new product that serves the same purpose as my competitor's long-standing product. One thing I have considered doing is allowing my program to import document files created by their product in order to provide an easy way for users to migrate towards mine. Naturally, this would be done without the competitor's permission, as it goes against their interests. I've seen this done before with office suite software (e.g. Open Office and Apple Pages can import MS Word documents), but I'm wondering if there are any concerns, legal or ethical, with me doing this. I fully expect any answers will most likely fall under the "I am not a lawyer" clause, but it would be helpful to have a starting point for anything I would need to be aware of, or if I shouldn't need to worry.

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• How to create website shortcuts on the desktop / in a folder using Chrome?

  - by it's me

  Help with something really basic, which I am unable to figure out. In Windows creating a shortcut (link) for a website is as easy as dragging-and-dropping the favicon/address bar to the desktop or a folder. I tried the same in Ubuntu (Chrome browser), but it's not working. The web page is being saved as a file, but not as a link/shortcut. Am I missing something or is there no way to quickly create shortcuts to web pages/web sites without installing some app for that? If the above is true, is there an app that does what I need? I hope I am clear enough.

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• What technology(s)would be suitable for the front end part of a Java web game?

  - by James.Elsey

  As asked in a previous question, I'm looking to create a small MMO that will be deployed onto GAE. I'm confused about what technologies I could use for the user interface, I've considered the following JSP Pages - I've got experience with JSP/JSTL and I would find this easy to work with, it would require the user having to "submit" the page each time they perform an action so may become a little clumsey for players. Applet - I could create an applet that sits on the front end and communicates to the back end game engine, however I'm not sure how good this method would be and have not used applets since university.. What other options do I have? I don't have any experience in Flash/Flex so there would be a big learning curve there. Are there any other Java based options I may be able to use? My game will be text based, I may use some images, but I'm not intending to have any animations/graphics etc Thanks

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• A peculiar issue with nm-applet

  - by montreux

  There is a somewhat strange error that I've noticed with my gnome sessions. It's not a problem that causes a lot of trouble, but at times it becomes annoying. Anyway, here it is: when I fire up gnome-session-fallback (which is the main one I use), the network applet doesn't run with root permission. Here is what it looks like http://i.imgur.com/8kc7Vrd.jpg . On the other hand, here is what the regular gnome session looks like http://i.imgur.com/wfkkE3E.jpg . From the regular session I can easy edit and add networks, but from fallback session I cannot add/edit anything, or turn off/on the wireless or networking. Any ideas?

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• Getting collision detection in Pygames

  - by user36010

  I am writing a game in Pygame, I want to get collision detection. The aim is when a object hits another, the target object disappears. I want to avoid having classes and just have my code class less for now, in one script. This makes it difficult to get collision detection because the Rect method in Pygame is called on by an object(class). The logic I want to achieve is: object hits a target object target object disappears. is there an easy way to achieve this?(with minimal code possible)

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• What do you use to create sprite graphics? [closed]

  - by SimpleRookie

  Possible Duplicate: What tools do you use for 2D art/sprite creation? What do you folks suggest for creating sprite graphics and sprite sheets? I fiddle with pixelformer and tilestudio. Pixelfromer has a kicken interface, it is quick and easy to make graphics, but a bit cumbersom if you want to make a spritemap. Tile Studio is a interesting mix or tiles and maps, but it is a bit buggy and basic. The Adobe series, just don't really seem to handle tiny graphics well. (there is a previous posting of this question existing, but it is a year old and I was hoping for further/updated input from the community)

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• Without using a pre-built physics engine, how can I implement 3-D collision detection from scratch?

  - by Andy Harglesis

  I want to tackle some basic 3-D collision detection and was wondering how engines handle this and give you a pretty interface and make it so easy ... I want to do it all myself, however. 2-D collision detection is extremely simple and can be done multiple ways that even beginner programmers could think up: 1.When the pixels touch; 2.when a rectangle range is exceeded; 3.when a pixel object is detected near another one in a pixel-based rendering engine. But 3-D is different with one dimension, but complex in many more so ... what are the general, basic understanding/examples on how 3-D collision detection can be implemented? Think two shaded, OpenGL cubes that are moved next to each other with a simple OpenGL rendering context and keyboard events.

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• Partner Milestones

  - by Kristin Rose

  Ahhh the joys of success especially during graduation time…It’s the same joy we feel when one of our partners reaches an Oracle milestone. After all, we want to help partners gain maximum exposure for their hard work and achievements. How you ask? Through streamlined press releases and social media exposure of course! So whether you just completed a Specialization or an Oracle Exastack program achievement, we want to help you share that news  both near and far. Be sure to check out the key PR assets that are available to you, which include: Easy to follow guidelines to help you create and promote your OPN successes – as well as how to submit your press release to Oracle for review OPN press release templates to help develop your announcements OPN’s social media outlets where you can further promote and share your news Contact information for your global Oracle Partner PR representatives Take advantage of these invaluable resources and “Go Get ‘Em,”The OPN Communications Team

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• Display large amount of data to client through pagination

  - by ebram tharwat

  I have a web application in which i need to show a big number of data or records for clients. Now i 'll use pagination but i was wondering should I: Load all the data once then pagination, sorting and sarching 'll be easy..But it 'll takes big time(using local DB it takes up to 9 sec.) Or each time i show new page(from the pagination) i make a new request to server and then new request to DB to get the next records..But then what if the client click on Prev button, i 'll make a new request to get data that I had previously..Should i cach data that are loaded before and how if that's good technique? So load all data once or make a new request every time i need data that maybe have been loaded before. I'm using ASP.NET MVC SPA with durandaljs and knockoutjs

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• What Do Your Customers Want in an Online Experience?

  - by Christie Flanagan

  In a time where customers have an increasing number of choices and an increasing level of control over their relationships with brands, what matters most is engagement. In order to engage your customers online, you need to provide them with a relevant, interactive and multichannel experience.  Check out this video to see the kind of engaging online experience that Oracle WebCenter can power for your customers. Want to learn more?  Visit our Connected Customer Experience Resource Center to: See a demonstration of how easy it is for marketers and other non–technical business users to create and manage online experiences like the one above with Oracle WebCenter Sites Hear Ancestry.com describe how they use Oracle WebCenter Sites to deliver an online experience that converts site visitors into customers and keeps them coming back to learn more about their family histories Hear what analysts are saying about the exciting new and enhanced web experience management capabilities in Oracle WebCenter Sites 11g

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• Resolving equivalence relations

  - by Luca Cerone

  I am writing a function to label the connected component in an image (I know there are several libraries outside, I just wanted to play with the algorithm). To do this I label the connected regions with different labels and create an equivalence table that contain information on the labels belonging to the same connected component. As an example if my equivalence table (vector of vector) looks something like: 1: 1,3 2: 2,3 3: 1,2,3 4: 4 It means that in the image there are 2 different regions, one made of elements that are labelled 1,2,3 and an other made of elements labelled 4. What is an easy and efficient way to resolve the equivalences and end up with something that looks like: 1: 1,2,3 2: 4 that I can use to "merge" the different connected regions belonging to the same connected component? Thanks a lot for the help!

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• Google Analytics - New & Old Domain Filtering

  - by DotNetStudent

  I have two domains associated with the same hosting account. Domain A was the one I had purchased when I first set up my website, but I didn't like it all that much and it was getting low ranks, and so I bought domain B and 301'd links from domain A to domain B. Now I would like to know if there is any way I can filter page views on Google Analytics based on the domain used to access the website, so that I can know if it is worth to keep the old domain associated with the account. Is there any easy way I can do this?

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• Crossbrowser issue - navigation-menu [closed]

  - by aztekk

  I'm having issues with crossbrowser compatibility on my navigationmenu for my site. The issue is that it's not working as expected in MSIE. It bugs out on mouseover. The site is run with wordpress and the theme is called GreenChilli. It's a free theme from MyThemeShop and they don't seam to be very active in resolving free theme issues on their forum. Can someone have a look and see if this is an easy fix, or if I maybe have to abaondon this theme for something else? Site is: http://lamslagen.com

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• Is there a ppa or repository where we can update LibreOffice to version 3.6?

  - by josircg

  On http://www.libreoffice.org/download/ there is only RPM version - when great majority of Desktop Linux users are using systems based on APT... ppa:libreoffice/ppa seems to be very outdated with version 3.5 It's frustating to see several fixes on Windows version and Ubuntu versions so outdated... People generally reply as: we don't update due to security/stability reasons, etc example 1 example 2 why don't you compile yourself ? For those easy answers, I generally reply: let me decide which version to use at my own risk. I just want to try a newer version and I trust on LibreOffice devs. I understand that update a core lib is very dangerous but Libreoffice is an user application and it don't just break the whole system. Why don't I compile ? Because I am a regular user and don't have time to learn it. I would love to have this time but unfortunately, I don't have. Red Hat/Fedora guys have the same concerns but they update their LibreOffices...

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• Is it a bad practice to have an interface to define constants?

  - by FabianB

  I am writing a set of junit test classes in java. There are several constants, for example strings that I will need in different test classes. I am thinking about an interface that defines them and every test class would implement it. The benefits I see there are: easy access to constants: "MY_CONSTANT" instead of "ThatClass.MY_CONSTANT" each constant defined only once Is this approach rather a good or bad practice? I feel like abusing the concept of interfaces a little bit. You can answer generally about interfaces/constants, but also about unit tests if there is something special about it.

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• The shortest licenses

  - by Darek Nedza

  What are the shortest licenses with aims for programmers/code. I have found only MIT that is page-long. What are other licenses that have approximately the same length or even shorter? Edit: Ok, length is not only criteria(I haven't expected one-line licenses, I have understaminate you people). I need easy to read and short licenses. It is meant for people who want to use my code not for lawyers who want to read long licenses. I am creating small codes to use by most people probably free of charge. I don't want useless information to be required, for example: what is X(for example: what is software, source code etc.) very specific information(for example: you can use it shop, opera, school... free of charge; but instead "use it everywhere but don't take money" Depending on type of code I would like to allow/disallow commercial usage.

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• Algorithm to generate N random numbers between A and B which sum up to X

  - by Shaamaan

  This problem seemed like something which should be solvable with but a few lines of code. Unfortunately, once I actually started to write the thing, I've realized it's not as simple as it sounds. What I need is a set of X random numbers, each of which is between A and B and they all add up to X. The exact variables for the problem I'm facing seem to be even simpler: I need 5 numbers, between -1 and 1 (note: these are decimal numbers), which add up to 1. My initial "few lines of code, should be easy" approach was to randomize 4 numbers between -1 and 1 (which is simple enough), and then make the last one 1-(sum of previous numbers). This quickly proved wrong, as the last number could just as well be larger than 1 or smaller than -1. What would be the best way to approach this problem? PS. Just for reference: I'm using C#, but I don't think it matters. I'm actually having trouble creating a good enough solution for the problem in my head.

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• How do you balance between "do it right" and "do it ASAP" in your daily work?

  - by Flot2011

  I find myself pondering this question times and times again. I want to do things the right way, to write a clean, understandable, correct code that is easy to maintain, but what I really do pretty often is writing a patch upon patch just because there is no time, clients are waiting, a bug should be fixed overnight, the company is losing money on this problem, a manager is pressing hard etc. etc. I know perfectly well that in a long shot I am wasting much more time on these patches, but as this time is spread over months of work, nobody cares. Also, as one of my managers used to say, we don't know if there will be this long shot if we will not fix it now. I am sure I am not the only one entrapped in this endless real/ideal choices. So how you, fellow programmers, are coping with this?

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• What Does It Usually Mean for a Feature to be "Supported"?

  - by joshin4colours

  I'm currently working some testing for a particular area of an application. I had to write some automated tests for a particular feature but due to the circumstances, this was not easy to do. When I asked one of the other testers about it, he mentioned that the same features exist in a sister application our company produces but isn't documented anywhere (end-user documentation or otherwise). He also said that the feature doesn't typically get tested at all in the sister application and isn't usually tested in the application I work on. Apparently this feature isn't heavily used but removing it would require a fair bit of work so the benefit-cost ratio doesn't work out. All of this has left me with some questions. Other than "The documentation says so" or "We told the client it is", what usually makes a feature "supported" versus an unsupported feature?

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• How can you monitor internet download usage?

  - by dv3500ea

  Some broadband providers impose a monthly download limit, charging extra if you go over. It is also quite easy to exceed some of the lower limits just by installing/updating packages and 'normal' browsing (which to me includes streaming TV programs and movies). This means that you need to limit the amount you use the internet, yet it is hard to know when. The System Monitor helps a bit with this by giving a total received/total sent in the networking section of the Resources tab. However, this is reset every reboot. It would be good if there was a way to have a monthly total received so you can know how close you are to exceeding your limit and maybe even be given warnings if it looks like you are going to exceed the limits. Does anyone know of a way to achieve this?

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