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• Enabling GTX 570

  - by Silas

  Hello i just built up my new system: Asus Rock Z77 Extreme 4 Intel i7 3770k 16 Gb Corsair Ram Zotac Nvidia GTX 570 bequiet! 630W Power supply 120 GB SSD So after i installed UBUNTU 12.04 64 bit. It ran smoothly. I downloaded and installed all the recommended updates. After checking the Sytem details the GTX 570 didnt show up as graphics unit. so i figured i needed to download the drivers. So i did but being a complete newbie to linux i didnt succeed in installing them. (I think) Anyway after several tries and errors i shut down the PC and restarted it. Resultung in do Signal to my screen after trying to reboot and all the monitor outs with no result i took out the graphic card and now it boots normally but after booting it says there is a problem with the system the graphics cant be recognized something something. So Question A: What do i do? I Like linux but the arbitrarity of the Errors that occur without any changes to the system scare me. Question B: Is there A beginners guide to Ubuntu where i could start from scratch because i really want this to work? Question C: Now that the System is (suddently) showing these graphic errors So far without visible consequence despite the error message. should i reinstall the GPU and give the driver installation another try or the other way around? Ill be very grateful for any help. Thank you in advance!

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• Learning Java for electrical engineering [closed]

  - by MohdAziz

  I'm an electrical engineering student ( Power, control & instrumentation). 2 months ago I started learning C, and I found programming something really enjoyable and I'd like to continue learning C and few other programming languages along with my electrical engineering degree. So my university is offering an extensive Java Oracle course for 7 days (like 5-6 hours a day) for a really decent price, do you think as an electrical engineer this would help me in my future career? What are the benefits of learning Java for an electrical engineer of my specialization? Do you think it's a good idea for someone in my case to take such an extensive course? I'm hardworker and I really enjoy these things, so I don't think that would be a problem for me.

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• Visual Studio 2010: Extension Manager

  - by Natasa Gavrilovic

  If you still didn’t explore Extension Manager under Tools in Visual Studio 2010 now it’s the time!   VS2010 can be expended to include add-ons you wish to have. The Extension Manager list is pretty extensive, where most of them are ‘still work in progress’ tools but, at least, it is worth trying.   Listed below are top ranked ones that should help to enhance your coding experience:   ·         Productivity Power Tools – set of small gadgets: Auto Brace Completion, Quick Access, Column Guides, Align Assignments, Triple Click etc. ·         PowerCommands  ·         Visual Studio Web Standards Update –newly released update for support HTML5 and CSS3 ·         MVC Scaffolding - scaffold elements from entities ·         NuGet Package Manager – automated package manager tool   Online the Extension manager is locaated ats Visual Studio Gallery.   Another good place is CodePlex. It is open source software website focusing on .NET that contains more than 20 000 add-ons tagged in more than 20 different categories.   Feel free to add a comment how your VS is ‘customized’ and what will be your recommendation.   N.

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• How to deploy a single website to multiple physical servers.?

  - by user70122

  I want to deploy my PHP and Ajax based Dating website to multiple physical servers. Does anyone know the method. Is there possible any method to save the files and setting (and also the user input), on all of the physical server, so that the servers do the following jobs. Servers used as a network, speeding up the process giving a robust thing to the end user. Data to be stored on all the servers' hard drivers, and Every server have the internet connection from different provider, so for example a. if any of the internet providers gets down, or b. there occur any hardware or power failure, the website still runs, without a break and without any data loss. Does anyone know about some online course, or some comprehensive tutorials about this topic ?

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• Ubuntu 11.04 64bits Keeps Randomly Freezing

  - by user971602

  This has been a real headache for me since the number of freezes has increase from twice a week to about 1 or twice a day. The system just halts and nothing can be done but hitting the restart button. At the beginning I thought it was related to Flash since I was getting random freezes when playing full screen flash videos online. I also thought it could be the wireless pci card. But the system has freezed using browsing around GNOME. The truth is, the freezes are really random and strange. I checked this thread Ubuntu keeps randomly freezing and try to ssh my computer using another one, but I could not ssh since it was really totally frozen. NumLock or CapsLock wasn't responding or blinking. Since I could not ssh I, also ignored this article https://wiki.ubuntu.com/X/Troubleshooting/Freeze According to my wife, the system has also halted under Win7 Pro 64bit but with less frequency. Here is my system configuration Intel Core i7 2600k ASRock Z68 Extreme3 gen3 Motherboard Crucial M4 128GB CT128M4SSD2 SSD WD Caviar Green WD10EADS 1TB SATA II G.SKILL Ripjaws X Series 8GB (2 x 4GB) DDR2 OCZ ModXStream 600W Power Supply Rosewill RNX-N300X PCI Wireless Adapter No external Graphics Card I remove the Wireless card and used Ethernet to see if the problem was the that, but I got a freeze after doing that. I also ran memtest86 and everything was ok. The only other thing I might suspect of is the SSD. I will try to clone the SSD to a HDD to see if that solve the problem. At this point I am stuck with the freezes. Do anyone have a clue of why this is happening and how can i solve this?

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• How to make Bumblebee work with HP Pavilion DV6T-7000 Quad Edition with Intel HD 4000 and Nvidia GeForce GT 650M 2GB?

  - by user69469

  I just recently bought a HP DV6T-7000 Quad Edition. It has an Intel HD 4000 and a Nvidia GeForce GT 650M 2GB with Optimus. I read that I could use bumblebee to make optimus work, so I installed it. I also installed bumblebee-nvidia and nvidia-current from the ubuntu-x-swat/x-updates ppa. I rebooted, but when I tried to run anything with optirun, the computer would wait ten seconds or so, then do a hard shutdown. I got no log messages from bumblebee, Xorg, or optirun, either. I have purged and reinstalled bumblebee, bumblebee-nvidia, and nvidia-current. I have also set the turned off power management in the bumblebee.conf file to no avail. I am out of ideas about this, and I need both options. Any ideas would be much appreciated.

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• Out of range on shut down, Log Out, Restart and Suspend

  - by user52889

  I have looked extensively on the help forums but haven't found a similar problem. Whether I want to Shut Down, Restart, Log Out or Suspend, as soon as I select my desired option the screen goes black with a message (Out of Range displayed in the middle of the screen. No combination of keys frees the screen and I have to manually hold the power button on my PC to shut it down. There is no problem on start up. My computer is a dual boot with Windows 7.

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• Are "skip deltas" unique to svn?

  - by echinodermata

  The good folks who created the SVN version control system use a structure they refer to as "skip deltas" to store the revision history of files internally. A revision is stored as a delta against an earlier revision. However, revision N is not necessarily stored as a delta against revision N-1, like this: 0 <- 1 <- 2 <- 3 <- 4 <- 5 <- 6 <- 7 <- 8 <- 9 Instead, revision N is stored as a delta against N-f(N), where f(N) is the greatest power of two that divides N: 0 <- 1 2 <- 3 4 <- 5 6 <- 7 0 <------ 2 4 <------ 6 0 <---------------- 4 0 <------------------------------------ 8 <- 9 (Superficially it looks like a skip list but really it's not that similar - for instance, skip deltas are not interested in supporting insertion in the middle of the list.) You can read more about it here. My question is: Do other systems use skip deltas? Were skip deltas known/used/published before SVN, or did the creators of SVN invent it themselves?

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• Attempting to install Ubuntu 11.10 along side Windows 7 Professional 64bit. Installer doesn't recognize an operating system present

  - by KichigaiDave

  System Details: Asus Sabertooth 990FX motherboard AMD FX-8120 CPU 16 GB DDR3 1600 Corsair Vengance RAM (4x4) EVGA Nvidia GTX-560Ti video card 2x Dvd/cd rw dirves 1 Bluray RW drive 1 Orico USB 3.0 & eSata panel 1 Sabrent floppy bay card reader w/USB 2.0 port 760W pc power & cooling PS OCZ agility 120GB SSD (Windows 7 Professional 64bit installed in an approx 80gb partition, NTFS. There is also a "System Reserved" partition shown in disk management at 100mb in size, also NTFS) That leaves about 32GB usable free, un-partitioned space in which I hoped to install Ubuntu. However when I run the Ubuntu 11.10 AMD64 installer, it doesn't show there is even an operating system installed. It just shows the entire drive as free-unpartitioned space. Just not sure what to do here. I was thinking about using the Wubi installer, but i don't know about that. Is the performance reduction pretty drastic? Thanks,

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• Why does Windows 7 overall performance is better than Ubuntu 11.10?

  - by user37805

  I have a i7 2600 processor, 8Gb DDR3 ram, nVidia GTX570, and Ubuntu takes 45-50 seconds to boot and 32-35 seconds to power off, while windows 7 boots in 20-25 seconds and shuts down in 10 seconds. Both OS with autologin enabled, and in dual boot. Ubuntu is slow with preload too, and doesn't show any boot splash after installing drivers and didn't recognize my nVidia graphics card on jockey GTK, I had to add x swat repository and that didn't worked. I installed proprietary drivers through terminal (nvidia-common, nvidia-settings) in order to have 3d acceleration. But it doesn't make any difference on the speed. I also have a Pentium 4 PC and ubuntu 11.10 is way faster than windows 7 or XP. Also with nvidia graphics card and preload. http://paste.ubuntu.com/924890/ there is my boot script, sorry but some words are in Spanish because my ubuntu is in Spanish. Not using WUBI, Ubuntu has its own partition, 64-bits, and Matlab 2011 has very low performance compared to windows version.

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• Thinking about open-sourcing quiz project [closed]

  - by user72727

  I was thinking about starting an open source project. I have a few projects that might work ok as an open project but thought I might dip my toe into the water with a simple quiz project. The idea is you can add questions to a quiz, arrange questions by topic, difficulty or location. Users would hopefully get an interesting quiz, tuned to their ability. At the end they'd get a score and hopefully they might provide either some feedback on the questions or even supply a few questions of their own. I couldn't see a similar project (fame's last words). I have a basic version of the project that gives the user a bunch of questions to answer in 10 minutes. It doesn't currently group the questions into topics, and no feedback is taken. I've also been told the graphical questions don't work on Ipads for some reason. Would this be a suitable project to go open source? I did find various quiz's out there but all seemed rather narrowly focused. I really wanted something that could cover any type of question on any type of subject. I prefer to keep the questions in MySQL but I could see how this might make it more difficult for others to get on board - should I move to data files? How do I proceed? http://www.checkmypages.com/numbers

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• Illuminated USB keyboard flickers

  - by Axj Member

  Does anyone know where I can download a driver for the VAKOSS TK-487-UK illuminated keyboard to run on Ubuntu? Or at least how to control the USB port so that it stops flickering on and off. The USB port works fine but the Keyboard is not recognized by Ubuntu... Already read the post on youtube and script but did not work either...tried changing USB ports, rebooting, etc. This has been going on for a week. The keyboard gets its power from the USB port. http://answers.yahoo.com/question/index?qid=20120128105854AAjgmgn

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• Binfmt config not persisting after booting

  - by Ishpeck

  I have the binfmt kernel module set up so I can run .NET apps as if they were native binaries. I have the /etc/rc.local file configured identically to this. If I power down my computer or boot into Windows, when I come back to Ubuntu, I can't run .NET apps without calling Mono. However, if I simply touch /etc/rc.local and restart, the binfmt configuration appears to kick in and I can run my .NET EXE's as I expect to. How do I get my configuration to stick?

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• Mimicking a bluetooth disconnection

  - by user2529672

  I've written a program to control a bluetooth device. I'm trying to test cases when the bluetooth disconnects, i.e. if its out of range. Physically taking the device out of range is one possibility, but its quite cumbersome and I have to go outside my office to achieve this. What can I do to trigger a disconnection? Is there, for example, an interferer I can setup, say with an Android phone, that would make the connection drop? Or limit the Bluetooth transmit power? Any other possibilities?

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• 12.04 freezes on install

  - by CHris

  I'm new to ubuntu and can't for the life of me understand how to get around this issue. I'm having a problem where when I insert the boot disk that i burned for 12.04, it loads and gives me the language option and select an installation type, i select either try ubuntu / install ubuntu and it begins to load. Then after about 5 mintues of the purple screen with the dots under the UBUNTU it freezes the whole computer, and the only way to get out is to turn off the laptop with the power button. I have read previous threads saying people had similar "freezing" issues including ones that mention my model of laptop, HP Pavillion DV1000. But it appears their problems are post installation and relate to their wireless cards. I have tried changing the boot options (F6) and I am totally stuck. Can anyone shed any light on to this issue? Thanks in advance.........

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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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• Editing assemblies using ReflexIL

  - by nmarun

  I have known ReflexIL for quite some time, so I thought I’ll write a line or two about this simple and yet power tool. This tool runs as a plug-in for Red Gate’s Reflector . I’m not sure if I can cover all the features of this tool, but there are a couple that I really liked that we’ll just see those. In order to get it working, you unzip the contents of the file to some folder. In Reflector, under Tools->Add-Ins add the path to the Reflexil.Reflector.dll. And, you’re set. To bring up the add...(read more)

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• Macro to Add using System.Linq

  - by Aligned

  I have Visual Studio 2010 setup to remove and sort settings on save with the Power Commands extensions. This is great, but sometimes it removes the using System.Linq at the top. I also find myself scrolling to the top to add the using when I first add System.Linq. So I wrote a quick macro to do it for me. Sub AddUsingLinq()        DTE.ActiveDocument.Selection.StartOfDocument()        DTE.ActiveDocument.Selection.StartOfLine(vsStartOfLineOptions.vsStartOfLineOptionsFirstText)        DTE.ActiveDocument.Selection.Text = "using System.Linq;"        DTE.ActiveDocument.Selection.NewLine()        DTE.ExecuteCommand("Edit.FormatDocument")        DTE.ExecuteCommand("Edit.RemoveAndSort")        DTE.ActiveDocument.Save() DTE.ExecuteCommand("View.NavigateBackward")    End SubHook this up to a shortcut (tools -> options -> keyboard, I chose ctrl + x, c) and you'll be moving faster than ever.

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• Stores Still Matter In The World Of E-Commerce

  - by Michael Hylton

  You may think that more and more consumers are moving their purchasing to the Web or mobile device.  However, according The NPD Group, Inc., a leading market research company, 15-20 percent of consumers in 2011 checked out products in stores before buying online, or called “showrooming”, for product categories like stand mixers, electric knives, sewing machines, and some floor cleaners. Other categories like power tools, hairsetters, and robotic vacuums are now beginning to show signs of the “showrooming” trend as well. It is doubly important to present a consistent, personalized, and relevant shopping experience for your customers, no matter whether they interact with you in-person in your store, with your sales agents or call center agents, over the Web, or using a mobile device.  Your goal is to make that experience across touchpoints as seamless as possible.

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• Stores Still Matter In The World Of E-Commerce

  - by Michael Hylton

  You may think that more and more consumers are moving their purchasing to the Web or mobile device.  However, according The NPD Group, Inc., a leading market research company, 15-20 percent of consumers in 2011 checked out products in stores before buying online, or called “showrooming”, for product categories like stand mixers, electric knives, sewing machines, and some floor cleaners. Other categories like power tools, hairsetters, and robotic vacuums are now beginning to show signs of the “showrooming” trend as well. It is doubly important to present a consistent, personalized, and relevant shopping experience for your customers, no matter whether they interact with you in-person in your store, with your sales agents or call center agents, over the Web, or using a mobile device.  Your goal is to make that experience across touchpoints as seamless as possible.

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• Screen dims & freezes me out

  - by user287723

  New to Ubuntu 12.04 (used since 8th April). I have recently been using Firefox for an online course and while working on this virtual PC site, the screen dims and I am frozen out of interacting with my desktop. (I cannot switch to any other tabs in Firefox). Power setting set to suspend after 30 mins. The desktop is connected to the mains. Moving the cursor around appears to have no effect. This is making the course difficult to follow so any ideas would be appreciated. Thanks

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• Cannot get grub menu to timeout (or go away)

  - by Eric

  I am running Ubuntu 12.04. I cannot for the life of me get the grub menu (with options) to go away. I would like it to auto-boot into the first option. I've edited /etc/default/grub so that it looks like the following: GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian` GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="" After this, I ran sudo update-grub. Then I realized that I had grub 2, so I ran sudo update-grub2 (both make it look like they create the grub.cfg file successfully. I restart my computer and it goes back to the grub menu and just sits there until I make a choice. This is not desirable if the power goes out... :-) I also tried reinstalling grub using sudo grub-install /dev/sda - also unsuccessful

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• Cannot boot: "No init found. Try passing init=bootarg"

  - by glutz

  After losing power, my machine rebooted to this error: “error: no init found. Try passing init=bootarg” Per similar threads on this site and others, I've tried booting from a CD and selecting "Try Ubuntu". Then open a terminal and typing: sudo fsck-y /dev/sda1. The response is: Device or resource busy while trying to open /dev/sda1. Filesystem mounted or opened exclusively by another program? This is on Ubuntu 10.10. Any ideas on what I can try next?

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• Les utilisateurs d'iPhones sont les plus satisfaits du marché pour la cinquième année consécutive, selon une étude américaine

  Les utilisateurs d'iPhones sont les plus satisfaits du marché pour la cinquième année consécutive, selon une étude américaine Mise à jour du 17.03.2011 par Katleen Il semblerait que les utilisateurs d'iPhones soient contents, très contents. Pour la cinquième année consécutive, Apple arrive en tête du classement de J.D. Power and Associates, qui mesure le taux de satisfaction des possesseurs de smartphones. L'enquête a en effet interrogé 7300 propriétaires de ce type d'appareils entre juillet et décembre 2010. La firme a la pomme à récolté 795 points (sur un maximum de 1000) de satisfaction, là où Motorola et HTC sont arrivés ex-aequo avec 763 points. Si l'on en croit ces...

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• How do I prevent the Sleep button from locking the screen

  - by elmicha

  My keyboard has a Sleep button. I defined a shortcut in System Settings, Keyboard Shortcuts own settings (or similar), so that the Sleep buttons runs a script. That works. But since my upgrade to Oneiric, something also locks the screen (in the same way the screen is locked when I press Ctrl+Alt+L). Can I disable that behaviour? What's the name of that lock screen? I tried hiding gnome-screensaver and /etc/acpi/ and I looked in gconf-editor /apps/gnome-power-manager/buttons. I didn't find anything related in dconf-editor.

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