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• How to install drivers for NVIDIA GeForce FX 5200 on Precise

  - by Aaron Simmons

  Ok, I'm a total Linux noob. I was able to install 12.4 without issue, except that it says in the system settings that the graphics card/driver is "unknown". I have NVIDIA GeForce FX 5200, and have not been able to get it installed. I've found the driver at NVIDIA but couldn't figure out how to actually install it. I found instructions that used apt-get to automatically find the current driver and install it, and that came close. At least then it showed up in the 3rd party drivers list. It said it was installed but not being used? And I was unable to find out why that might be, or how to get the system to use it Two questions: 1. CAN/SHOULD my graphics card work with 12.4? 2. If so, HOW? I'm running a 100% fresh install, so what's the step-by-step from there?

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• How to get working cups command line tools on Server 14.04

  - by Nick

  It looks like some of the commands like lpr and lprm have broken versions that don't work with cups. These commands worked properly on 10.04. lpr for cups has an -o option, but no lpr is intalled when cups is installed, and the lpr installed with apt-get install lpr does not have the -o option and does not appear to be the cups version of lpr. man lpr shows BSD General Commands Manual at the top, where man lpr on the Ubuntu 10.04 server said Apple, inc in the same spot. which leads me to believe the "wrong" lpr is in the "lpr" package or package names got moved around. There is also a lprng package, but trying to install it wants to remove cups and cups-client. lprm also returns lprm: PrinterName: unknown printer when PrinterName is in fact a valid printer installed with cups and does appear in lpstat -t. How do I get the proper cups versions of lpr working on Server 14.04?

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• Why doesn't the Visual Studio C compiler like this? [migrated]

  - by justin

  The following code compiles fine on Linux using gcc -std=c99 but gets the following errors on the Visual Studio 2010 C compiler: Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.40219.01 for 80x86 Copyright (C) Microsoft Corporation. All rights reserved. fib.c fib.c(42) : error C2057: expected constant expression fib.c(42) : error C2466: cannot allocate an array of constant size 0 fib.c(42) : error C2133: 'num' : unknown size The user inputs the amount of Fibonacci numbers to generate. I'm curious as to why the Microsoft compiler doesn't like this code. http://pastebin.com/z0uEa2zw

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• I have done everything correct on my asp.net website, re: SEO; why aren't google backlinks showing?

  - by Jason Weber

  I recently implemented many SEO techniques for a company on their asp.net website; in 6 months, we jumped from a PR1 to a PR3. But I'm having issues with google backlinking. Here are some of the things I've done: Not only did I set up their own Google+ page 6 months ago, I update it pretty much daily with links, pictures, etc., and I blog about it on my own personal Google+ page and post links, etc. ... They have their own Twitter, Facebook, YouTube, and all are updated almost daily. I've listed in as many quality, relevant directories as possible 6 months ago; I've avoided link farms. The site is solid SEO-wise. Key-phrase rich URLs, schema.org & rich snippets. No duplicate content ... www or non-www 301's, trailing slashes, etc. ... all taken care of. Probably a ton of other things, but basically, the site is all set, SEO-wise. Here's what's confounding: When I do a link:www.example.com in Bing/Yahoo, it shows many backlinks. When I do a link:www.example.com in google, it shows up 0 links. Or when I use a site-ranker like Web Site Rank Tool it's showing 0 backlinks from Google. Any suggestions would be appreciated!

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• Why is <my site url> not indexed by search engines? [closed]

  - by Henrik Erlandsson

  was indexed fine until about a year ago. The only thing I can think of is that search engines throw up at using h5 before h4, or that some person (fantasizing now) has reported my site as unsafe to every search engine. However, I'm not here to speculate. The site validates, and has an RSS feed on the front page, for Pat Morita's sake! To me, it looks like the kind of site search engines would feast on. It's got more than a dozen blogs on it, if nothing else. Hah. :) I was thinking you could identify basically what has changed in search engines (currently, google, yahoo, bing which used to work fine) the last year to make them not find news and blog articles on this site. The site was submitted to Google, oh, way back in 2006. With online crawler tests I get mixed results, some crawlers index fine, some go blank. I don't really know which ones are reliable and am looking to you guys for advice on that. Yes, I am prepared to again verify my site with Google and upload a sitemap, but that's not the topic here. I really would first like to know what change on the site last year could make search engines not index it. (Yees, the robots.txt is fine. Should be nothing to discourage bots there.) It's a very intriguing problem. One which I have yet to find the reason for but would like to know the reason for. Any and all input appreciated, but I would heavily enjoy pertinent advice the most. ;) Edit: Some google searches that don't show up include - aca630 All of which are posted in the news and blogs that are on the front page there. Now, these search terms are extremely specific as the term in is almost unique on the web and ACA630 is also a very qualified search term that can't be confused with mainstream search terms.

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• Do programmers possess the means of production? [closed]

  - by Peter Turner

  I was reading (err listening) to The Servile State by Hilare Belloc this morning and pondering whether or not I possessed the means of production, as did the peasant of the middle ages; as did not his descendants after the oligarchs of England forced him into servility. The means of production was the arable land that the serf was seated on, which even though not legally his, was illegal to evict him from. So, as programmers, with the hither-to-unknown supply of free tools and resources, have we reclaimed as a class of workers, unlike any others, the means of production. Given the chance, a midrange PC and a stable internet connection, could we not each of us be wholly self sufficient and not just wage earners?

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• Uploading a non-finished website

  - by Daniel

  I have a pretty basic question. I developed a neet little website wich I'm ready to upload, but still needs a bit of work. The designer needs the html to do his work so the website needs to be uploaded. Besides that, I have to correct a couple details, do the friendly-urls, etc. What's the best way to set up the webpage in the definitive hosting with the defintive domain, blocking it to any unknown users and without affecting affecting SEO and those kind of things. If I were to just upload it, the non-definitive website might be crawled by a SE-bot. Thanks!

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• My ubuntu partition was deleted and I can't boot from either a DVD or USB

  - by ropudito

  It's my first time installing ubuntu. I have Windows 7 and 8 before in my laptop (Acer Aspire 4752z). After Ubuntu (12.04) installed in my laptop, the Windows boot loader didn't recognize my Ubuntu so I updated grub from a live USB. And after grub updated, Ubuntu was booting perfectly but my Windows wasn't listed in the grub menu. So I follow someone instruction to update grub again. And after reboot, the grub menu didn't show anymore. After searching about this problem on the net and trying to update grub again and again, I decided to delete the Ubuntu partition from live USB. And shortly after, I booted to Windows with Hiren boot and I used mbrfix. But i think it failed. Now i cant show my BIOS setup or boot from DVD or USB. After that, the only screen i can see after booting is: error: unknown filesystem grub rescue>

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• Python in Finance by Yuxing Yan, Packt Publishing Book Review

  - by Compudicted

  Originally posted on: http://geekswithblogs.net/Compudicted/archive/2014/06/04/python-in-finance-by-yuxing-yan-packt-publishing-book-review.aspx I picked Python in Finance from Packt Publishing to review expecting to bore myself with complex algorithms and senseless formulas while seeing little actual Python in action, indeed at 400 pages plus it may seem so. But, it turned out to be quite the opposite. I learned a lot about practical implementations of various Python modules as SciPy, NumPy and several more, I think they empower a developer a lot. No wonder Python is on the track to become a de-facto scientist language of choice! But I am not going to compromise the truth, the book does discuss numerous financial terms, many of them, and this is where the enormous power of this book is coming from: it is like standing on the shoulders of a giant. Python is that giant - flexible and powerful, yet very approachable. The TOC is very detailed thanks to Packt, any one can see what financial algorithms are covered, I am only going to name a few which I had most fun with (though all of them are covered in enough details): Fama*, Fat Tail, ARCH, Monte-Carlo and of course the volatility smile! I am under an impression this book is best suited for students in Finance, especially those who are about to join the workforce, but I suspect the material in this book is very well suited for mature Financists, an investor who has some programming skills and wants to benefit from it, or even a programmer, or a mathematician who already knows Python or any other language, but wants to have fun in Quantitative Finance and earn a few buck! Pure fun, real results, tons of practical insight from reading data from a file to downloading trade data from Yahoo! Lastly, I need to complement Yuxing – he is a talented teacher, this book could not be what it is otherwise. It is a 5 out of 5 product. Disclaimer: I received a  free copy of this book for review purposes from the publisher.

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• SQL Saturday #274 Slovenia

  - by Dejan Sarka

  Yes, here it is SQL Saturday #274 is coming to Slovenia (#sqlsatSlovenia). The event will take place on Saturday, December 21st, at company pixi* labs, Informacijske tehnologije, d.o.o. Poslovna cona A 2 SI-4208 Šencur This company generously offered to host the event. We, the whole Slovenian SQL Server community, are very grateful for this. At this time, a call for speakers went out, and we are already getting the first proposals. We are especially happy that we will get possibility to show the foreign speakers how beautiful Slovenia and especially the capital Ljubljana is in December. Expect a lot of partying right on the streets, no matter of weather. Be prepared, we have slightly weird customs when it comes to drinks. For example, our regular special discount offer is not three drinks for the price of two; it is six drinks for the price of five. If you are a speaker or want to become one, consider sending a proposal. Since most of the sessions will be held in English and you don’t want to speak, consider coming as a visitor as well. Or maybe you would be interested to become a sponsor. Although we are targeting a low budgeted event, any kind of sponsorship is very welcome. Please feel free to contact the organizers if you are interested to become a sponsor: Matija Lah – [email protected], Mladen Prajdic - [email protected], or Dejan Sarka  - [email protected]. Looking forward to see you all!

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• Impact of variable-length loops on GPU shaders

  - by Will

  Its popular to render procedural content inside the GPU e.g. in the demoscene (drawing a single quad to fill the screen and letting the GPU compute the pixels). Ray marching is popular: This means the GPU is executing some unknown number of loop iterations per pixel (although you can have an upper bound like maxIterations). How does having a variable-length loop affect shader performance? Imagine the simple ray-marching psuedocode: t = 0.f; while(t < maxDist) { p = rayStart + rayDir * t; d = DistanceFunc(p); t += d; if(d < epsilon) { ... emit p return; } } How are the various mainstream GPU families (Nvidia, ATI, PowerVR, Mali, Intel, etc) affected? Vertex shaders, but particularly fragment shaders? How can it be optimised?

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• How to retrieve data from a corruped volume

  - by explorex

  Hi, My Ubuntu 10.10 just crashed(probably due to hardware error and in the end I was getting error like Unknown filesystem ..... grub> .. GRUB console before i could take some action) and i reinstalled the same version form USB stick. I had ubuntu installed in ext4 file system and I am also having the same filesystem in the same hard disk on different drive. When I try to access my previous filesystem, i get error Error mounting: mount: wrong fs type, bad option, bad superblock on /dev/sda6, missing codepage or helper program, or other error In some cases useful info is found in syslog - try dmesg | tail or so I had some important files in the previous volume, I don't know how to retrieve them. And what are the chances that I would get the same outcome (hardware error)? Please help me!

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• HTG Explains: How the SmartScreen Filter Works in Windows 8

  - by Chris Hoffman

  Windows 8 includes a SmartScreen filter that prevents unknown and malicious programs from running. SmartScreen is part of Internet Explorer 8 and 9 – with Windows 8, it’s now integrated into the operating system. SmartScreen is a useful security feature that will help prevent bad applications from running, but it may occasionally prevent a legitimate application from running. SmartScreen reports some information to Microsoft, so it may have some privacy implications. HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It HTG Explains: How Windows Uses The Task Scheduler for System Tasks

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• How should I select continuous integration tool?

  - by DeveloperDon

  I found this cool comparison table for integration servers on Wikipedia, but I am a little uncertain how to rank the tools vs. my needs and interests. The chart itself seems to have a lot of boxes marked unknown, so if you are comfortable updating it on Wikipedia, that could be great too. Are there a few top performing products so I can quickly narrow down to four or five options? Which products seems to have the largest user communities and most ongoing enhancements and integration with new tools? Are the open source offerings best, or are there high quality tools that can be a great deal for a single user at home? Will use of multiple systems (primary desktop, local only home network server, personal and work notebooks, multiple virtual machines spread across all) create problems and how can they be managed?

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• Ubuntu One stuck and doing nothing - help!!!

  - by Laurence Nagel

  Ubuntu One has worked fine for me for several weeks and I now have 8.2 GB of files in the clouds. Then, last night, Ubuntu One stopped working. When I fire up System-Preferences-Ubuntu One, It tells me that I have 8.2 GB stored (13.2 %) and the my status in Unknown. I've tried Restart to no avail. I even tried Remove, followed by clearing the password ring and starting over. Still nothing. I've run out of buttons to push.

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• SQL Peer-to-Peer Dynamic Structured Data Processing Collaboration

  Unstructured and XML semi-structured data is now used more than structured data. But fixed structured data still keeps businesses running day in and day out, which requires consistent predictable highly principled processing for correct results. For this reason, it would be very useful to have a general purpose SQL peer-to-peer collaboration capability that can utilize highly principled hierarchical data processing and its flexible and advanced structured processing to support dynamically structured data and its dynamic structured processing. This flexible dynamic structured processing can change the structure of the data as necessary for the required processing while preserving the relational and hierarchical data principles. This processing will perform freely across remote unrelated peer locations anytime and transparently process unpredictable and unknown structured data and data type changes automatically for immediate processing using automatic metadata maintenance.

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• How to recover data from NTFS partition that was made into a Swap partition?

  - by Raghav Mehta

  I have extremely important stuff on my windows partition which during the ubuntu 10.10 installation,when it said that I should create something called swap space, I selected it to be a swap space (without even knowing what it actually meant) The Grub2 doesn't show up so I don't get a choice to boot Ubuntu or Windows. I don't get my windows partition as a removable device in Ubuntu either. When I go to disk utility and select the sda2 (i.e.. my windows partition) and click edit partition and select HPFS/NTFS for the type and tick bootable and click OK the small processing sign keep on rotating on the bottom right of the sda2 in the chart and after about 10 to 15 minutes it gives an unknown error and thus, I am still unable to use my windows. I am even worse than a beginner who doesn't know a thing about Ubuntu so please be patient and help me out.

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• Ask the Readers: What Do You Have Set as Your Homepage?

  - by Mysticgeek

  When if comes to setting a homepage in your browser, it’s really based on personal preference. Today we want to know what you have set as your homepage in your favorite browser. Browser Homepage There are a lot of search sites that allow you to customize your homepage such as iGoogle, MSN, and Yahoo. Some people enjoy having a homepage set up as a dashboard of sorts. While others like simplicity and set it to Google or leave it blank. Not surprisingly in a small office or corporation you will see a lot of workstations set to MSN or the company SharePoint site. Unfortunately, a lot of free software tries to change you default homepage as well, like in this example when installing Windows Live Essentials. Make sure to avoid this by not rushing through software install wizards, and carefully opt out of such options. What is set as your homepage in your favorite web browser…both for work and at home? Leave us a comment and join in the discussion! Similar Articles Productive Geek Tips Ask the Readers: Which Web Browser Do You Use?How-To Geek Comment PolicyMysticgeek Blog: A Look at Internet Explorer 8 Beta 1 on Windows XPSet the Default Browser on Ubuntu From the Command LineAnnouncing the How-To Geek Forums TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Xobni Plus for Outlook All My Movies 5.9 CloudBerry Online Backup 1.5 for Windows Home Server Snagit 10 Get a free copy of WinUtilities Pro 2010 World Cup Schedule Boot Snooze – Reboot and then Standby or Hibernate Customize Everything Related to Dates, Times, Currency and Measurement in Windows 7 Google Earth replacement Icon (Icons we like) Build Great Charts in Excel with Chart Advisor

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• Part of the launcher has been cut off, Ubuntu 12.04

  - by Tim

  After a hard drive failure on my iMac, I replaced it and installed Ubuntu. So far, I am finding it very easy to use, however there is one problem which is making it much harder. The bottom of the launcher is missing - it is 'covered' by the desktop background. This means that I cant see the trash, or bottom few icons. Even if I scroll, it doesn't show it. Any help is very much appreciated. If you send a message to [email protected], with the subject "launcher photo", I will send you an email with the photo of the missing part attached. Currently, my only fix is to enable and then disable the extra screen it thinks is there - called unknown device

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• Apt-get take long time to update\upgrade

  - by ShockwaveNN

  On my work network any apt-get (or aptitude) commands take a very long time, it's look's like admins blocked some port for it (for unknown reason). For example sudo apt-get update take like 2 days and all I get - a very long list of responses like Get: 36 http://security.ubuntu.com precise-security/universe amd64 Packages [11.6 kB] Get: 37 http://security.ubuntu.com precise-security/universe amd64 Packages [11.6 kB] Get: 38 http://security.ubuntu.com precise-security/universe amd64 Packages [11.6 kB] Get: 39 http://security.ubuntu.com precise-security/universe amd64 Packages [11.6 kB] Get: 40 http://security.ubuntu.com precise-security/universe amd64 Packages [11.6 kB] Same situation then I try to download software Get:1 http://archive.ubuntu.com/ubuntu/ precise/main dash i386 0.5.7-2ubuntu2 [85.8 kB] Get:2 http://archive.ubuntu.com/ubuntu/ precise/main dash i386 0.5.7-2ubuntu2 [85.8 kB] Get:3 http://archive.ubuntu.com/ubuntu/ precise/main dash i386 0.5.7-2ubuntu2 [85.8 kB] Get:4 http://archive.ubuntu.com/ubuntu/ precise/main dash i386 0.5.7-2ubuntu2 [85.8 kB] Get:5 http://archive.ubuntu.com/ubuntu/ precise/main dash i386 0.5.7-2ubuntu2 [85.8 kB] Is there something I can do to change port for apt-get or something else

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• Writing selenium tests, should I just get it done or get it right?

  - by Peter Smith

  I'm attempting to drive my user interface (heavy on javascript) through selenium. I've already tested the rest of my ajax interaction with selenium successfully. However, this one particular method seems to be eluding me because I can't seem to fake the correct click event. I could solve this problem by simply waiting in the test for the user to click a point and then continuing with the test but this seems like a cop out. But I'm really running out of time on my deadline to have this done and working. Should I just get this done and move on or should I spend the extra (unknown) amount of time to fix this problem and be able to have my selenium tests 100% automated?

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• How to add a link group to update-alternatives?

  - by Kurtosis

  Is it possible to add a custom link group to update-alternatives that is not already there by default? For example, I want to add Scala and all its supporting binaries as a link group 'scala'. I'm trying using this script, but keep getting the error: update-alternatives: error: unknown argument `' I'm not sure what that means, but after troubleshooting the script a bit with no luck, I'm wondering if update-alternatives has a hard-coded list of link groups, that can't be added to, and that doesn't include scala. PS - any chance someone with higher karma can create an update-alternatives tag? Seems this topic gets a decent number of questions, but no tag for it.

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• How to convert a Bazaar repository to GIT repository?

  - by Naruto Uzumaki

  We have a large bazaar repository and we want to convert it to a git repository. The bazaar repository contains the folders of each of the interns. Any documentation/code prepared by interns is committed in their directory so there are a huge number of commits. What steps should be performed to securely convert the bazaar repository to a git repository so that we do not lose any commit information. We firstly need to create a backup of the existing bazaar repository and then convert it. Edit: I followed this link: http://librelist.com/browser//cville/2010/2/9/migrate-repository-bzr-to-git/ It's working fine on my system with Ubuntu. But when I try to run it on the actual server it gives me EOF error and crashes Starting export of 1036 revisions ... fatal: EOF in data (1825 bytes remaining) fast-import: dumping crash report to .git/fast_import_crash_11804 Edit 2: I also tried it on a new CentOS system and received the following error fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree. Use '--' to separate paths from revisions

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• Ubuntu One stuck and doing nothing

  - by Laurence Nagel

  Ubuntu One has worked fine for me for several weeks and I now have 8.2 GB of files in the clouds. Then, last night, Ubuntu One stopped working. When I fire up System > Preferences > Ubuntu One, it tells me that I have 8.2 GB stored (13.2 %) and that my status is Unknown. I've tried to restart to no avail. I even tried to remove, followed by clearing the password keyring and starting over. Still nothing. I've run out of buttons to push.

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• What reasons are there to reduce the max-age of a logo to just 8 days? [closed]

  - by callum

  Most websites set max-age=31536000 (1 year) on the Cache-control headers of static assets such as logo images. Examples: YouTube Yahoo Twitter BBC But there is a notable exception: Google's logo has max-age=691200 (8 days). I've checked the headers on the Google logo in the past, and it definitely used to be 1 year. (Also, it used to be part of a sprite, and now it is a standalone logo image, but that's probably another question...) What could be valid technical reasons why they would want to reduce its cache lifetime to just 8 days? Google's homepage is one of the most carefully optimised pages in the world, so I imagine there's a good reason. Edit: Please make sure you understand these points before answering: Nobody uses short max-age lifetimes to allow modifying a static asset in future. When you modify it, you just serve it at a different URL. So no, it's nothing to do with Google doodles. Think about it: even if Google didn't understand this basic trick of HTTP, 8 days still wouldn't be appropriate, as only those users who don't have the original logo cached would see the doodle on doodle-day – and then that group of users would go on seeing the doodle for the following 8 days after Google changed it back :) Web servers do not worry about "filling up" the caches of clients (or proxies). The client manages this by itself – when it hits its own storage limit, it just starts dropping the lowest priority items to make space for new items. The priority score is based on the question "How likely am I to benefit from having cached this URL?", which is nothing to do with what max-age value the server sent when the URL was originally requested; it's a heuristic based on the "frecency" of requests for that URL. The max-age simply lets the server set a cut-off point – the time at which the client is supposed to discard the item regardless of how often it's being re-used. It would be very nice and trusting of a downstream client/proxy to rely on all origin servers "holding back" from filling up their caches, but I don't think we live in that world ;)

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