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• Can't find my DVD drive in Ubuntu 12.04

  - by user72953

  I am completely new to Linux, due to some problems in my Windows I decided to give Linux a try. I am quite liking it accept for some minor issues. The biggest of them is that I cannot find my DVD drive in Ubuntu. After I insert the disk, the drive's green light flickers and then nothing. I don't get anything on my unity bar or desktop. There is no folder inside my /dev folder which indicates a dvd drive. There is a cdrom folder in my root folder but nothing is there. If you guys know what's wrong, I'd appreciate the help. Am a complete newbie so don't expect me to know anything about Ubuntu, although I have spent lots of hours in last 2 days googling my issue so I have basic information...

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• Amd athlon 6000+ kernel panic during installation

  - by usefreeit

  I am trying to install ubuntu 10.04 on my PC. I get flashing scrollock and capslock lights and error kernel panic here screen shot http://alexandrneverov.livejournal.com/pics/catalog/443/47342 Installation of 11.04 (x86_64 and i386) - get the same. 12.04 can't start installation process. If install system on other PC and then pick this hard with installed system in this PC - it works maybe 5 min and then frezze or reboot. What can i do to install ubuntu?? I have changed memory, video, atx, hard - no matter - it shuts down randomly, sometimes with this errors in image. What can i do to install ubuntu??

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• Logic - Time measurement

  - by user73384

  To measure the following for tasks- Last execution time and maximum execution time for each task. CPU load/time consumed by each task over a defined period informed by application at run time. Maximum CPU load consumed by each task. Tasks have following characteristics- First task runs as background – Event information for entering only Second task - periodic – Event information for entering and exiting from task Third task is interrupt , can start any time – no information available from this task Forth task highest priority interrupt , can start any time – Event information for entering and exiting from task Should use least possible execution time and memory. 32bit increment timer available for time counting. Lets prepare and discuss the logic, It’s OK to have limitations …! Questions on understanding problem statement are welcome

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• why my site cache 2 time par day?

  - by clarawood

  I have read the FAQs and checked for similar issues: YES My site's URL (web address) is: www.adultxdating.com Description (including timeline of any changes made): I have lost my top search listings from last 4 months. I am still working on this but not getting proper guidance. This site is caching 2 times in 24Hrs. Some times sites will back in to top 10 search listing on 100s keywords, some time its gone out 1000+. anybody can help me why its happening. I have more than 200K+ incoming links and updating the site regularly. Please help. Thanks clara wood

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• Alternative ways to construct maps

  - by sideways8

  I've searched around and it seems like most people are using tile-based map systems. I suppose this question is more theoretical than practical (I am not very concerned about memory or performance speed), but I want to know: what other ways can a map be created in a game? A map being a graphic representation of terrain that can be navigated, has entrances and exits, and boundares (no-go zones). Besides using text files to store and arrays to load tile data, one idea I had was to store a map entirely as a graphic file and use queries on the pixel colour to determine boundaries (ie, you can only move in a certain direction if the way is bright enough in that direction). What other creative map systems are out there?

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• A drop in SERP after following webmaster guidelines [on hold]

  - by digiwig

  So here's a puzzle for all you SEO gurus out there. I recently launched my own site. I had target keywords which were ranking very well for about 1 month, within the top five and even appearing in first place. In an attempt to maintain good positioning, I followed guidelines by adding robots.txt, an xml sitemap redirecting non-www to www redirecting index.php to root domain adding htaccess 301 redirect for old pages I added rich snippets created a google+ account, verified my picture to appear, I went through each of the webmaster issues with duplicate titles and meta descriptions and improved header tag document outlines i even created a few more blog posts to keep the content freshing and moving. So now my website appears on page 2 with my target keywords - and all because I followed the guidelines. What is happening? I see competitors with stagnant content superglued to position 1.

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• L'Open source initiative reconnait CeCILL 2.1, la première licence de logiciels libres conforme au droit français

  L'Open source initiative (OSI) vient de reconnaître la licence CeCILL 2.1, la première licence de logiciels libres conforme au droit français. Proposée par le CEA, le CNRS et Inria, elle appartient à une famille de trois licences.Historiquement, les premières licences encadrant le logiciel libre étaient anglo-saxonnes. Depuis 2004 cependant, une famille de licences vient combler l'absence de texte de droit français. Issues d'un groupe de travail composé d'acteurs du transfert, de scientifiques et de juristes d'Inria, du CEA et du CNRS, elles couvrent trois besoins majeurs des éditeurs de logiciel :- CeCILL reprend le modèle de la licence GNU ...

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• I need advice on how to debug a cluster

  - by alcor

  I'm the only developer of a complex critical software system, written in Visual C++ 2005. It's deployed on a classical Microsoft cluster scenario (active/passive), that has Windows Server 2003 R2. If a server A goes down, the other one (B) starts and take the ownership of its duties. You have to know that: both servers have the same Microsoft patches/fixes, same hardware, same everything. both servers use the same memory storage (a RAID-6 through fiber channel). this software has a main module who launch the peripheral modules. if a peripheral module crashes, the main module restarts it. When I switch the application in one of the two servers (let's say the B server) two of the peripheral modules of the main applications just started to crash apparently without reason about 2 seconds after the start of the peripheral module. What could I do to analyze/inspect/resolve this weird situation?

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• Microsoft serait plus populaire que Google, selon les dernières estimations de comScore

  Microsoft serait plus populaire que Google, selon les dernières estimations de comScore S'il est un sujet qui divise souvent, après le Microsoft vs. Apple, c'est le Microsoft vs. Google. Et les statistiques publiées ce jour par comScore risquent de relancer le débat. Car si Google est toujours le moteur de recherche le plus utilisé avec le plus grand nombre de visiteurs uniques, les sites de Microsoft le battent en matière de popularité. Ces chiffres proviennent de données issues de l'étude du Web anglais, et des propriétés détenues par chaque firme. Donc, tous les sites et services associés des deux géants ont été pris en compte, ce qui a plutôt changé la donne. Lorsqu'on ajoute Bing aux autres sites ...

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• Strange problem of wifi keeps droping every minute on Ubuntu 12.04

  - by user965884

  I am running ubuntu 12.04 on my samsung laptop but the wifi connection keeps dropping every minute. I have another dell laptop which also has ubuntu 12.04 but wifi works fine on that. And if I use my samsung laptop at office as its my office laptop wifi works fine. So, I don't understand what the problem is. I have googled it and found solution like set ignoring IPv6 setting but that still does not make any difference. So I don't understand where the problem is if its with my network provider or its with my laptop. I can't blame my network provider as wifi works fine on my other devices including Ipad, mobiles and dell laptop. Even I can't say clearly that its problem with my laptop as wifi works fine in my office. Previously I had ubuntu 13.04 on my samsung laptop and I was having the same issue so I uninstall it and install 12.04 and issues is still the same.

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• Unity 3D in 11.10 with VirtualBox in OS X?

  - by Roshambo

  I'm having a horrible time with Unity 3D in Ubuntu 11.10 running in a VirtualBox VM in OS X. Such a hard time, in fact, that I'm about to give up and conclude that it simply isn't possible to use Ubuntu 3D in a configuration like this. The problem with is that windows simply do not render. I've found that killing Nautilus makes the problem go away, but that's really not much of a solution. I have installed the guest additions and am running the VM with 2048 MB RAM, 128 MB video memory, and have enabled 3D acceleration. I've tried all this on several Macintoshes, with no luck. Unity 2D, on the other hand, works fine across the board. Any advice or experience would be greatly appreciated.

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• Getting wireless N to work on Dell Vostro 3300?

  - by luisfpg

  I have a Dell Vostro 3300, which has a Broadcom BCM4313 wireless. The point is that I cannot make it work in N mode. NetwotkManager applet says I'm on 54 Mbit/s. Of course, my wireless router is N capable. I've double checked. Anyone knows what to do? Here is the output for lspci -v: 12:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01) Subsystem: Dell Device 0010 Flags: bus master, fast devsel, latency 0, IRQ 17 Memory at fbb00000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: wl Kernel modules: wl, brcm80211 Thanks a lot.

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• Impact of migrating home page from HTTP to HTTPS on search results

  - by 2Stroke SEO

  I've had to change one of my site's home page to HTTPS from HTTP. I had plenty of links coming into the HTTP page and was performing well in Google against many of my targeted search phrases. I did a 301 redirect from the HTTP page to transfer the link juice to the HTTPS page (and to prevent duplicate content issues) but my search rankings have tanked which indicates no link juice has been transferred. My PageRank has vanished - which I'd expect - but I'm really surprised that the SERP rankings fell off the face of the earth. Anyone have any ideas how I can recover from this? I've waited a couple of months since the changes took effect just in case Google was taking time to check it out.

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• Ubuntu 11.10 not showing up in GRUB bootloader after update and restart :(

  - by beginer

  I was using ubuntu 11.10 with gnome-shell. I installed various useful softwares and ran system update using update manager which ran smoothly and asked me to restart my comp at the end. I restarted it to find that Ubuntu entries were missing from the GRUB bootloader and only memory test and windows are showing up. I took a lot of pain in installing various important softwares and cannot afford a re-installation. Tried to boot from the live cd and installed boot-repair and after running it .. it wasnt working properly .. it was just showing that it was "scanning systems" for more than an hour. Kindly help. Thank you ..

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• What's the difference between Pygame's Sound and Music classes?

  - by Southpaw Hare

  What are the key differences between the Sound and Music classes in Pygame? What are the limitations of each? In what situation would one use one or the other? Is there a benefit to using them in an unintuitive way such as using Sound objects to play music files or visa-versa? Are there specifically issues with channel limitations, and do one or both have the potential to be dropped from their channel unreliably? What are the risks of playing music as a Sound?

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• Getting Started with the SSAS Tabular Model

  SSAS Tabular models are in-memory databases that model data with relational constructs such as tables and relationships, in order to provide a rapid and powerful way of providing self-service BI to client applications such as Microsoft Excel and Microsoft Power View. You’ve deployed SSAS in tabular mode, and deployed Adventureworks into it. What next? Rob Sheldon explains all. Check SQL Server performance at a glanceWe consulted 1000 SQL Server professionals to make SQL Monitor’s UI as clear as possible. Start monitoring with a free trial.

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• downgrading a ubuntu 10.04 LTS virtual server

  - by castigli

  I am downgrading an existing ubuntu 10.04 LTS Virtual Server to one with less memory and a smaller drive ( from 80GB to 40GB ). My hoster ( hetzner.de ) does not give me the possibility of doing an inplace downgrade, so I have to create a new server. What is the best way to make an image of the first system and "apply it" to the new one ? I know there other answer but in my situation I am not sure I would be able to use Clonezilla or other GUI tools, because the installation is minimal with no GUI. Thanks in advance Michele

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• Data structure for file search

  - by poly

  I've asked this question before and I got a few answers/idea, but I'm not sure how to implement them. I'm building a telecom messaging solution. Currently, I'm using a database to save my transaction/messages for the network stack I've built, and as you know it's slower than using a data structure (hash, linkedlist, etc...). My problem is that the data can be really huge, and it won't fit in the memory. I was thinking of saving the records in a file and the a key and line number in a hash, then if I want to access some record then I can get the line number from the hash, and get it from the file. I don't know how efficient is this; I think the database is doing a way better job than this on my behalf. Please share whatever you have in mind.

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• Why I can't open folders copied from Ubuntu on Windows?

  - by user37805

  Is not possible for me to open whatever folder I copy from Ubuntu to my Windows partition or whatever usb memory. Windows says the folder's location is either disconnected or doesn't exist. Can't copy, cut or delete the folder on Windows but with Ubuntu I can. This happens even if I create the folder on the ntfs disc. I have never had this problem before. Files are openable however, but not if they are inside a folder. This started after I haven't made any other changes except for the update to kernel 3.2.0-30-generic, I am using 12.04, never installed Samba, after this problem started I tried to fix it by installing ntfs-3f, ntfsprogs, ntfs-config, but It didn't work.

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• Is it possible to force a tab/window to take focus without an alert()? [migrated]

  - by Chris Brandt

  I've been working to solve some form / session timeout issues on our site. I'd like to get the users attention BEFORE this happens so that they don't lose data that they've entered into long forms. I'm using jquery's .get to confirm with my server when the users session is set to timeout, and warn them 5 minutes before then. I've found that if I pop an alert(), it will bring the focus back to that tab / page -- but this seems 'heavy handed'. Is there a better way to do this?

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• 27 vidéos techniques des Qt DevDays 2005, 2006 et 2008 sont désormais rendues publiques par Qt eLear

  L'équipe eLearning de Qt a depuis quelques temps cherché à récupérer des vidéos techniques issues des conférences des anciens QtDevDays dans l'optique de les faire partager à tout le monde. C'est aujourd'hui chose faite avec la publication en ligne de 27 présentations techniques ce qui correspond à 22h30min de vidéos. Les sujets traités sont toujours valides aujourd'hui, même si le framework a évolué au fil des années. 2005 :All About Qt Widgets Effective Graphics Programming Practical Model/View Programming Threaded Programming with Qt - Good Practise Writing Custom Styles with QStyle Writing plugin applications with Qt 2006 :Advanced Item Views...

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• Clean Ubuntu 14.04 install taking longer to boot after kernel upgrade

  - by mvburgos

  Hello this is my first post. I own an Asus Chromebox (2gb ram, 16 gb sdd, 3.0 usb ports) and fresh installed Ubuntu 14.04 x64. I decided to upgrade kernel because I was experiencing some freezing issues with XBMC, So first i installed stable kernel 3.14.04 from mainline and boot time was fine (it booted very fast I would say about 5 seconds) then after a while I installed kernels 3.15 and 3.14.06 BUT this time I also removed OLD STOCK KERNELS (dunno if that has something to do) after that the problem began, boot time is taking way longer, I would say about 30 seconds. Finally today I installed kernel 3.14.07, set grub to boot with that by default but same thing :( I post boot.log and dmesg, hope it is correct for this matter, if you need any other log just let me know. boot.log dmesg

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• Is it legal to develop a game usung some version of D&D, something similar to Baldurs Gate?

  - by Max

  For a while now I've been thinking about trying my hand at creating a game similar in spirit and execution to Baldurs Gate, Icewind Dale and offshoots. I'd rather not face the full bulk of work in implementing my own RPG system - I'd like to use D&D rules. Now, reading about the subject it seems there is something called "The License" which allows a company to brand a game as D&D. This license seems to be exclusive, and let's just say I don't have the money to buy it :p. Is it still legal for me to implement and release such a game? Commercially or open-source? I'm not sure exactly which edition would fit the best, but since Baldurs Gate is based of 2nd edition, could I go ahead an implement that? in short: what are the issues concerning licensing and publishing when it comes to D&D? Also: Didn't see any similar question...

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• Express5800 to Mesh with SQL Server 2012

  NEC's GX servers have been engineered to supply high performance and availability. At their core is an Intel Xeon E7 processor with the power to handle up to 2TB of memory and 160 threads. In addition, thanks to QuickPath Interconnect technology, GX servers boast as much as a 200 percent in database improvement over their predecessors. The combination of NEC servers with Microsoft SQL Server 2012 give users the necessary capabilities to truly realize the cloud's potential for their needs in a number of ways. Organizations get stable platforms built for enterprise environments that offer hig...

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• There are Cloud Heroes Among Us: download the ebook

  - by Javier Puerta

  Given the importance of information systems in today's business world, database administrators (DBAs) and other technology professionals often perform heroic deeds for their organizations. While many of these IT pros are too humble to acknowledge their worth, we profiled five real-world IT heroes to demonstrate their value to their organizations-and the industry at large. Many of our heroes are bloggers who share new ideas and developments with their colleagues. Our heroes are creative individuals who can accurately assess a situation and rally their colleagues to address pressing issues. These heroes are authors and known Oracle technology user group leaders. Read their stories today and join them in leading a greater future for the IT industry.

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