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  • How to fix "The system is running in low-graphics mode" error?

    - by jokerdino
    Note: This is an attempt to create a canonical question that covers all instances of "low-graphics mode" error that occurs to a user, including but not limited to installation of wrong drivers, incorrect or invalid lightdm greeters, low disk space, incorrect installation of graphics card like ATI and Nvidia, incorrect configuration of xorg.conf file while setting up multiple monitors among others. If you are experiencing the "low-graphics mode" error when trying to login but none of the following answers work for you, please do ask a new question and then update the answers of this canonical question as and when your new question gets answered. When I try to boot into my computer, I am getting this error: The system is running in low-graphics mode Your screen, graphics cards, and input device settings could not be detected correctly. You will need to configure these yourself. How do I fix the failsafe X mode and login into my computer? Answer index: The greeter is invalid

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  • Choosing the right Design Pattern

    - by Carl Sagan
    I've always recognized the importance of utilizing design patterns. I'm curious as to how other developers go about choosing the most appropriate one. Do you use a series of characteristics (like a flowchart) to help you decide? For example: If objects are related, but we do not want to specify concrete class, consider Abstract When instantiation is left to derived classes, consider Factory Need to access elements of an aggregate object sequentially, try Iterator or something similar?

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  • All tweak settings not saving?

    - by mawburn
    I am running Ubuntu GNOME 14.04. After the last 2 updates, all settings in the Tweak menu are no saving. It will also not switch to the Gnome Dark theme at all. This includes all Startup Application changes as well as any changes to Extension settings. I'm not sure if I need to include any sort of log records or anything like that, so if you need any more information please ask. I've noticed the default fonts seem to be different. I don't remember that being part of the theme settings. It's almost like I'm running in Safe Mode.

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  • SEO Techniques For Your Website

    Search Engine Optimization has turned out to be a hot topic in recent times. This is an ideal way to give your website a high page rank. There are innumerable companies that aim to do SEO. There are some simple things that you need to take into consideration when it comes to constructing your website that help in increasing your chances of getting web traffic. These are some of them.

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  • Address search from large text file

    - by user73809
    Basically I want to develop a Address lookup(part of my project) using C# (and I can use SQL if necessary). I have a very large text file which have all the UK address and postcodes. Addresses needs to be looked up from this text file. For example, as soon as a user type in the first letter of the postcode it should list all the postcodes starting with that letter and as they type in further, the list should narrow down. Could you guys please how I can do this search very fast and list the results in a efficient way. If you guys know any methods and technologies pls do advice.

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  • career change : non-functional to test automation

    - by centennial
    I started my Career as core-Java developer 6 years ago and stayed as developer for 6-7 month and then moved to performance testing (actualy pushed into this for short term and later I started liking it). I have done all sort of non-functional testing like performance, load, stress, soak, compatibility, failover etc on many performance test tools accross many industries. I was doing contracting all these years which means I kept moving to new projects after every 3-6 months. Now personal situation has been changed, married man now so looking for something long term. Performance testing generally comes at the end of the development life cycle hence very short term contracts so I was wondering if I can move into functional/test automation side I can earn myself good length of contract. I had some exposure of QTP but I am sure to learn all other tools very quickly as I am quite good in programming and concept of testing. in short I want to move into functional test automation to get long term contract without leaving my love for programming . any thoughts please ?

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  • How are USB ports related to the computer power, and why would they cause my computer to freeze?

    - by BDuelz
    I have an issue with my new Toshiba laptop. Whenever I plug in an external USB device, if the laptop is not plugged in to the wall, the laptop freezes. However, nothing happens if the laptop is plugged in to the wall. When I say the laptop freezes, I mean it really freezes. The only way to recover is to hard reboot. My question is, what could be causing this? Could it be the extra power drain from the sub devices that causes this (even the simplest flash drives cause a freeze)? Please help me out, it's very annoying. Thanks

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  • Unable to turn on seamless mode in VirtualBox

    - by user11658
    I'm not able to switch to Seamless Mode in VirtualBox with Ubuntu 10.04 or 9.10 as guest OS's. I have tried the seamless mode with XP as guest OS, and it works absolutely fine. The host OS is Windows 7. I have in-built Via/S3G Unichrome Pro IGP graphics, and I have allocated 30 MB out of 64 MB of graphics memory. I've also 1.5 GB of RAM. I also tried installing Guest Additions but it still didn't work. VirtualBox version is 4.0.4r70112. How can I get the seamless mode to work? Please help!

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  • Ready to Open source the software, but want to make some money out of it.

    - by byteofprash
    I'm an UG Student and an Entrepreneur. I have started a small company with which I'm trying to provide solutions, to various companies in my city, through my software. I put in 30-40 hours of coding and development. I've been a huge fan of Open Source projects and I've also built by software on python. But now when it comes to selling my software to my customers, I expect money. (Am I being a Hypocrite?) Is there any OSS license under which I can make money and also make my source open? Please suggest. Or any other way to make money with my softwares? (I guess I deserve some credit. If not the code, atleast the ideas? :D )

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  • update-manager not running

    - by Sylvain
    Update manager doesn't want to run because of the error given below. The happens when trying to launch Ubuntu software center. I'm using Ubuntu 12.04. Any help would be much appreciated. Thanks Sylvain Error message: 'E:Encountered a section with no Package: header, E:Problem with MergeList /var/lib/apt/lists/gb.archive.ubuntu.com_ubuntu_dists_precise-updates_main_i18n_Translation-en, E:The package lists or status file could not be parsed or opened.'

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  • REGISTER NOW! ORACLE HARDWARE SALES TRAINING: HARDWARE AND SOFTWARE - ENGINEERED TO BE SOLD TOGETHER!

    - by mseika
    REGISTER NOW!ORACLE HARDWARE SALES TRAINING: HARDWARE AND SOFTWARE - ENGINEERED TO BE SOLD TOGETHER! Dear partner You can now register for Oracle's EMEA Hardware Sales Training Roadshow: "Hardware and Software - Engineered to be sold together!"The objective of this one-day, face-to-face, free of charge training session is to share with you and your Oracle peers the latest information on Oracle's products and solutions and to ensure that you are fully equipped to position and sell Oracle's integrated stack. Please find the agenda, schedule details and registration information here.The seats are limited and available on a first-come-first-serve basis. We recommend you to register yourself as early as possible and reserve your seat.Register Now We hope you will take the maximum advantage of these great learning and networking opportunities and look forward to welcoming you to your nearest event! Best regards, Giuseppe FacchettiPartner Business Development Manager,Servers, Oracle EMEA Sasan MoaveniStorage Partner Sales ManagerOracle EMEA

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  • Foreign key restrictions -> yes or no?

    - by This is it
    I would like to hear some”real life experience” suggestions if foreign key restrictions are good or bad thing to enforce in DB. I would kindly ask students/beginners to refrain from jumping and answering quickly and without thinking. At the beginning of my career I thought that stupidest thing you can do is disregard the referential integrity. Today, after "few" projects I'm thinking different. Quite different. What do you think: Should we enforce foreign key restrictions or not? *Please explain your answer.

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  • How to find out console equivalents of Ubuntu System Settings GUI?

    - by user4514
    How do I in general find out, what the very nice "System Settings GUI" in Ubuntu (say 12.04) does and how to replicate the changes in command line? Many people ask questions like "how to change the keyboard rate using command line", and often the answers do not help and are hard to find. What is the easiest way to find out, what the GUI is actually changing (for various types of settings. I.e. keyboard layout, rate, mouse, network, ...)

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  • Ugly LibreOffice font

    - by tuhyk
    I have been experiencing this super annoying bug with fonts in LibreOffice. Please see below screenshot. The spaces between letters are just messed, no matter what font or level of zoom I choose. When I change the zoom level, the spacing is actually changing but still looks very ugly. I have a pretty much default instalation of Ubuntu. I installed a couple of fonts (droid, mscorefonts). I did not change any font settings. Fonts in other applications looks great. When I open the very same text in Google Docs or MS Web Word, it looks perfect. I would appreciate any help concerning this issue. Thanks!

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  • No such file but the file is there!

    - by user288757
    I'm trying to compile a C++ file with some includes. My main file (well I didn't make it hdf5_getters includes a file which includes the file hdf5.h, also not my design but it's a downloaded library. Every time I try to compile it I get the error message that the file hdf5.h does not exist while it clearly does. I started reading on the internet and people say it can happen because it's a 32bit binary running on a 64bit architecture. But I'm running a 32bit Ubuntu so that can't be it... I'm out of ideas, if anyone can help me please :) This is the errormessage with commands: make hdf5_getters g++ -c -Wall -std=c++0x -O2 -c hdf5_getters.cc In file included from H5Cpp.h:20:0, from hdf5_getters.cc:34: H5Include.h:17:18: fatal error: hdf5.h: No such file or directory #include <hdf5.h> ^ compilation terminated. make: *** [hdf5_getters.o] Error 1

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  • Meet the EC Candidates Recording and Materials

    - by heathervc
    Yesterday the JCP hosted a Meet the EC Candidates call for Java Community members.  The recording and materials are now available on the JCP multimedia page. audio only file.  All nominee information is available on JCP.org.  The 2012 EC Election ballot will remain open until 29 October at midnight PDT, and the results of the election will be published on 30 October.  JCP Members, please take this opportunity you have to influence the members of the EC for the upcoming one year term.

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  • How to save a ntfs partition which suddenly became empty

    - by SteveO
    One ntfs partition of my laptop was suddenly wiped out without any notice to me, when I rebooted from Windows 7 to Ubuntu 12.04 today. I am in need of help to save my files on that partition, which are important and unfortunately haven't been backed up yet. My laptop has two operating systems: Windows 7 and Ubuntu 12.04. with a ntfs partition shared between the two operating systems for storing some data files (109GB, about 97%of which has been used). I have almost always been using Ubuntu, but today I happened to have to work under Windows. Following is a record of what happened in the time order, numbering according to which operating system I was in at each stage. When I started into Windows 7, right before being able to log in, it took a while and two reboots to configure the Windows. I thought it was normal, since last time when I was using Windows two weeks ago, it took very long and several reboots to update Windows, since the last time I used Windows before then was in November last year. Then after finally being able to log in Windows 7, I installed Libre Office, MathType (I got it from http://dl.portablesoft.org/down/?id=2515, which I originally thought was a trial version, but later I learned was a cracked version and felt wrong. I made a copy of it at dropbox http://dl.dropbox.com/u/13029929/MathType_6.8_PortableSoft.rar, not for distributing it but to list it there just in case it will help to identify the problem), and MikTex. I then edited some .doc files in the ntfs partition under both Microsoft Office with MathType, and Libre Office. When I finished working under Windows and rebooted into Ubuntu, Ubuntu did some filesystem checking and reported that the ntfs partition was not able to be mounted. Then I rebooted again into Windows, and found that the ntfs partition had been emptied, i.e. all the data files were gone, and only one system file bootsqm.dat and one system directory System Volume Information were there, with their last updated time being the time when I first rebooted from Windows to Ubuntu (in fact, it is 4 hours in advanced than the actual time of that rebooting , see immediately below) Also I noticed that the time shown by Windows is not correct for my time zone (UTC-05:00) Eastern Time (US & Canada)), which is 4 hours in advance than the correct time (my current time is 3am, but the computer shows 7am). Same things happened when I rebooted into Ubuntu again: the ntfs has been emptied and left with only one Windows system file bootsqm.dat and one Windows system directory System Volume Information. the time shown by Ubuntu is 4 hours in advance than the correct time. I wonder what I can do to retrieve my data files back on the ntfs partition? If I am not able to do it myself, will some professionals be able to help me out? Thanks a lot! PS: I didn't think I did any thing that required emptying that partition. But there were quite some works I did during that stage right before the reboot from Windows to Ubuntu when the problem occured. Did I make any mis-operation?

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  • Need some advice on CLI design, I need to provide simple but powerful command line options

    - by howtechstuffworks
    I am writing a utility that runs on RHEL5 command line. I need my command line options to be simple but powerful. I looked at the various UNIX utilities to get an idea of how simple command line utilities have to be. Do you guys suggest any documents/links that talk about command line etiquette? I am modelling my utility on top of LVM (that's all the info I can give for now). I know it's a software engineering question, but I thought it would be appropriate to post here. Please advise.... PS: I am not asking for details about getopt or command line utility parsers.....

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  • Oracle Open World 2012 Call For Papers

    - by Lionel Dubreuil
    At Oracle OpenWorld, more than a thousand people demonstrate their mastery and expertise by leading sessions on a vast array of Oracle technologies and products.Now’s the time to submit your SOA Governance success story presentation abstract for review by the selection panel.Don’t delay—submit your abstract now as the Call for Papers is open through next Monday,  April 9th.The competition is strong: roughly 18% of entries are accepted each year from more than 3,000 submissions. Review panels are made up of experts both internal and external to Oracle. Successful submissions often (but not exclusively) focus on customer successes, how-tos, or technical topics.What’s in it for you? Recognition, for one thing. Accepted sessions are publicized in the content catalog, which goes live in mid-June, and sessions given by external speakers often prove the most popular.Plus, accepted speakers get a complimentary pass to Oracle OpenWorld with access to all sessions and networking events-that could save you up to $2,595!For more information, please look here.

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  • Wireless issues BCM4311

    - by user207757
    I have been working with a nice Gent but I am getting stuck. I am just getting back in to Linux and Ubuntu was recommended. I like the look so far but the wireless isn't working I run the update and when it says complete it hangs at the end. Please let me know what to do at this point. "wl: Running module version sanity check. - Original module - No original module exists within this kernel - Installation - Installing to /lib/modules/3.11.0-12-generic/updates/dkms/ depmod.... DKMS: install completed." Hangs here!! Thanks for all your help, D.C.

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  • How To Prevent Microsoft SQL Injection in ASP.Net

    This is a two-part tutorial series meant to help beginners understand MS SQL database injection and the problems associated with it particularly when applied to an ASP.NET web form application. It also outlines preventive measures which will be discussed thoroughly in the second part so that you can secure your SQL-based web applications.... ALM Software Solution ? Try it live! Requirements Management, Project Planning, Implementation Tracking & QA Testing.

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  • Replace broken image with noimage icon using Jquery

    - by hmloo
    Sometimes when the image isn't available on server, the web page will show a broken image. so we can display a "no image available" image for good user experience. I will implement it using Jquery. $(document).ready(function() { $("img").error(function() { $(this).hide(); }) .attr("src", "noimage.jpg"); }); Please note that we must first hide the broken image, or else even if we set the src to noimage, it still can not show  noimage icon.

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  • Oracle Partner Specialists – Sell & Deliver High Value Products to Customers

    - by Richard Lefebvre
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Do you want to know where to find useful information about partner training and other activities to complete Oracle Specialization available in the country you are personally based? Go to the EMEA partner enablement blog and read latest information regarding training opportunities ready to join for Cloud Services, Applications, Business Intelligence, Middleware, Database 12c, Engineered System as well as Server & Storage. Recently, we announced new TestFest events in France, which you can join to pass your own Implementation Assessment within the Specialization category you have already chosen. To find out where and when the next TestFest close to your location will take place, please contact [email protected] or watch out for further announcements of TestFest events in your home country. Turnback to the EMEA Partner Enablement Blog from time to time to update your own Specialization and join the latest training for Sales, Presales or Implementation Specialists:  https://blogs.oracle.com/opnenablement/

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