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  • File manager (Nautilus) hangs or is ultra slow when listing contents of ssh/sftp server

    - by NahsiN
    I used to use File -- Connect to server to connect to my remote ssh a lot before 12.04/11.10. But now in a fresh install of 12.04, whenever I try to access the remote files, nautilus either always hangs or is ultra slow (5 mins) in listing the directory contents. Most of the time I have to force quit or xkill. Mounting using SSHFS works fine. The ssh server is fast and it works fine via putty, mc (using fish) and normal terminal. I also installed nautilus in Lubuntu 12.04 (virtualbox) and to my surprise, browsing is fast and smooth. Both versions of nautilus are at 3.4.2 thus I am led to believe the problem might be lying somewhere in Ubuntu 12.04. But I am clueless. All suggestions welcome. I really need to solve this problem.

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  • The sign of a true manager is delegation (C# style)

    - by MarkPearl
    Today I thought I would write a bit about delegates in C#. Up till recently I have managed to side step any real understanding of what delegates do and why they are useful – I mean, I know roughly what they do and have used them a lot, but I have never really got down dirty with them and mucked about. Recently however with my renewed interest in Silverlight delegates came up again as a possible solution to a particular problem, and suddenly I found myself opening a bland little console application to just see exactly how far I could take delegates with my limited knowledge. So, let’s first look at the MSDN definition of delegates… A delegate declaration defines a reference type that can be used to encapsulate a method with a specific signature. A delegate instance encapsulates a static or an instance method. Delegates are roughly similar to function pointers in C++; however, delegates are type-safe and secure. Well, don’t you love MSDN for such a useful definition. I must give it credit though… later on it really explains it a bit better by saying “A delegate lets you pass a function as a parameter. The type safety of delegates requires the function you pass as a delegate to have the same signature as the delegate declaration.” A little more reading up on delegates mentions that delegates are similar to interfaces in that they enable the separation of specification and implementation. A delegate declares a single method, while an interface declares a group of methods. So enough reading - lets look at some code and see a basic example of a delegate… Let’s assume we have a console application with a simple delegate declared called AdjustValue like below… class Program { private delegate int AdjustValue(int val); static void Main(string[] args) { } } In a sense, all we have said is that we will be creating one or more methods that follow the same pattern as AdjustValue – i.e. they will take one input value of type int and return an integer. We could then expand our code to have various methods that match the structure of our delegate AdjustValue (remember the structure is int xxx (int xxx)) class Program { private delegate int AdjustValue(int val); private static int Dbl(int val) { return val * 2; } private static int AlwaysOne(int val) { return 1; } static void Main(string[] args) { } }  Above I have expanded my project to have two methods, one called Dbl and the other AlwaysOne. Dbl always returns double the input val and AlwaysOne always returns 1. I could now declare a variable and assign it to be one of those functions, like the following… class Program { private delegate int AdjustValue(int val); private static int Dbl(int val) { return val * 2; } private static int AlwaysOne(int val) { return 1; } static void Main(string[] args) { AdjustValue myDelegate; myDelegate = Dbl; Console.WriteLine(myDelegate(1).ToString()); Console.ReadLine(); } } In this instance I have declared an instance of the AdjustValue delegate called myDelegate; I have then told myDelegate to point to the method Dbl, and then called myDelegate(1). What would the result be? Yes, in this instance it would be exactly the same as me calling the following code… static void Main(string[] args) { Console.WriteLine(Dbl(1).ToString()); Console.ReadLine(); }   So why all the extra work for delegates when we could just do what we did above and call the method directly? Well… that separation of specification to implementation comes to mind. So, this all seems pretty simple. Let’s take a slightly more complicated variation to the console application. Assume that my project is the same as the one previously except that my main method is adjusted as follows… static void Main(string[] args) { AdjustValue myDelegate; myDelegate = Dbl; myDelegate = AlwaysOne; Console.WriteLine(myDelegate(1).ToString()); Console.ReadLine(); } What would happen in this scenario? Quite simply “1” would be written to the console, the reason being that myDelegate was last pointing to the AlwaysOne method before it was called. Make sense? In a way, the myDelegate is a variable method that can be swapped and changed when needed. Let’s make the code a little more confusing by using a delegate in the declaration of another delegate as shown below… class Program { private delegate int AdjustValue(InputValue val); private delegate int InputValue(); private static int Dbl(InputValue val) { return val()*2; } private static int GetInputVal() { Console.WriteLine("Enter a whole number : "); return Convert.ToInt32(Console.ReadLine()); } static void Main(string[] args) { AdjustValue myDelegate; myDelegate = Dbl; Console.WriteLine(myDelegate(GetInputVal).ToString()); Console.ReadLine(); } }   Now it gets really interesting because it looks like we have passed a method into a function in the main method by declaring… Console.WriteLine(myDelegate(GetInputVal).ToString()); So, what it the output? Well, try take a guess on what will happen – then copy the code and see if you got it right. Well that brings me to the end of this short explanation of Delegates. Hopefully it made sense!

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  • Disabled WiFi but it keeps re-enabling itself; want it to stay disabled

    - by Mike Uresti
    I have an Alienware X51 desktop with a wireless card, I have it connected via ethernet and want to permanently disable WiFi from ever using itself. When running Windows, I go to device manager and rightclick-disable the Wireless card and that takes care of my problem. Is there a similar method using Ubuntu 14.04? For now, I click on the network icon in the system tray and uncheck 'Enable wifi' but it seems to turn itself back on as I use my computer, I think I have the incident isolated to something with Steam. It seems like after I start the Steam client it always is re-enabled. Hopeful answer: Just disable/remove/block wireless card from ever working.

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  • Is there anywhere where I can get Ubuntu installed for me?

    - by user3911336
    I have tried for days to install Ubuntu on my lenovo ideapad z510 and I feel like giving up. I really feel like I will like Ubuntu, but for some reason I always have some king of problem. I really don't want to give up on Ubuntu, but I don't want to brick my laptop either. Is there anywhere I can have Ubuntu installed for me? I have tried messing with my bios, used a DVD and a USB, but no luck. Thanks in advance! Edit: I am based in Warwick, RI in the USA. I don't want to run Ubuntu in windows.

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  • Getting "System program problem detected" pops up regularly after upgrade from 11.10 to 12.04

    - by Mixhael
    This started to happen immediately after I had rebooted the first time after doing a system upgrade to 12.04 from 11.10. It first starts with a dialogue that says "System program problem detected". Then when I try to hit 'report problem' not much happens. I am led through a dialogue that always ends up the problem cannot be solved. I am running a MacBook1,1 I am aware this is not a lot of information, however I'm not sure which information I need to publish and how should I obtain it to debug this problem. Here's a screenshot!

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  • Windows 7 doesnt boot after installing Ubuntu 12.10 (Asus Zenbook Prime / UEFI problem)

    - by jpdus
    Today I installed Ubuntu and since then i cannot boot into Windows anymore. I used the "standard" option (didnt change any partitions manually, just entered the size) but used the UEFI-mode. At first the GRUB entries for Windows did not work at all, after reading this thead i was able to add a new Grub entry - now i can get into the "windows-loading" screen for a few seconds but then i always see some kind of bluescreen for a fraction of a second and the laptop reboots. I can get into the windows recovery partition but the only option there is to reset everything to factory settings (+erase all data). I have no idea how to get into the Windows 7 repair mode which was mentioned here (tried everything else in this thread too - no success). My boot info can be found here: http://paste.ubuntu.com/1411573/ I have no idea what went wrong (there is even an extra page for the Zenbook Prime where no installation problems are mentioned). I would appreciate any help/ideas, many thanks!

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  • Macbook Pro late 2011 screen brightness issue

    - by buchzumlesen
    The keys to set the screen brightness work properly but everytime I reboot, the screen brightness is reverted to 100%, which is very annoying. I've already tried to add the following lines to /etc/rc.local but with no success (only the keyboard backlight stays off): #!/bin/sh -e # # rc.local # # This script is executed at the end of each multiuser runlevel. # Make sure that the script will "exit 0" on success or any other # value on error. # # In order to enable or disable this script just change the execution # bits. # # By default this script does nothing. echo '1' > /sys/devices/platform/applesmc.768/leds/smc::kbd_backlight/brightness echo '6' > /sys/class/backlight/acpi_video0/brightness rfkill block bluetooth exit 0` This worked for me when I was using Ubuntu 12.04 and also did after the upgrade to 12.10 but then after rebooting the screen brightness always reverted to 100%. Would be nice if anyone knows how to fix this. My device: Macbook Pro 13" Late 2011 Thanks in advance!

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  • How do you properly word a Google search when you don't even have a solution in mind? [closed]

    - by Bruno Romaszkiewicz
    So, I'm stuck on a problem, looking for a solution, my rubber duck can't help me, my co-workers can't help me. Next natural step is research, right? Google can help me, He always can. Or so I'm told. My problem is, I never found much use for Google when looking for a programming solution, it's very useful for finding how to implement one, but when you don't even know where to start, how do you properly word a Google search? Is there any other option?

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  • Project life cycle management - Maven vs 'manual' approach

    - by jb10210
    I have a question concerning the life cycle management of a/multiple project(s), more specific to the advantages/disadvantages of using technologies such as Maven. Currently we work in a continuous-integration environment but lots of things still need to be manually performed (dependency management, deploying, setting up documentation, generating stats, ...). My impression is that this approach often leads to errors, miscommunications or things just are forgotten. I know and have used Maven in the past but in smaller environments and I was always really enthusiastic about it. But I was wondering if someone could share some insights, experiences, pros, contras, ... about the use of Maven (or similar technology) in larger environments and for multiple projects. I would like to use the suggestions made here to start the debate about moving to the next level in project management!

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  • From the Classroom to the Boardroom

    - by Maria Sandu
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 Pens and Paper...these are the only things being a student and being a graduate / professional have in common. Walking in to the offices of Oracle South Africa as a graduate the first thing you notice is how polished and sleek all the people who work here look. 80% of the ladies wear sky-scraper heels and walk with the greatest grace. This was the first of many rude awakenings to remind me that I am no longer a student but a graduate. My first struggle was having to wake up at wee hours of the morning to prepare for work. As a student going to class was almost an optional thing, if you missed a morning class you could always attend an evening class to make up for it or simply attend with another group. But in the workplace, you HAVE to show up every single morning at the same time, with no option of coming in when it suits you and there is definitely no coming in with the evening class/shift. As a student, the earliest hour I ever woke up was 7:00am, anything earlier than that was considered inhumane torture. My reason for waking up every morning as a student was “you have a degree to go get” but as a graduate having to go to work I have to say to myself “here’s to a new day of learning and growing”. My second struggle has come in having to change my beloved wardrobe. Everyone who knows me knows how passionate I am about fashion and shopping. For me Shopping is a BASIC HUMAN RIGHT, that should not be messed with. Therefore it was with great sadness that I swopped my rippled skinny jeans for pin-striped formal pants, my long chandelier earrings for simple studs, my flat shoes for heels, my sheer blouses for crisp white shirts, even my beloved wild hair had to make way for a simple ponytail. Our looks as ladies also came under great scrutiny, we had to acquaint ourselves with some serious grooming tools: the mascara, blush, lip-gloss, blush, a touch of lipstick and a manicure set. Language was a struggle of its own as well. Being a student you learn to relate to your peers in a informal way. In the workplace you have to address everyone with the same respect, including your peers. Words like “Hey buddy” had to make way for “good morning friend”. The month long winter school holiday was one of the things I looked forward to as a student. This was a time where we got to be at home and avoid the coldest month of the year, July. It was the most amazing thing ever, just sleeping and snuggling up to all sorts of warm things but sadly it is now a thing of the past. It is currently winter in South Africa and going to work has become the most unfashionable thing with all the jackets, boots, scarves and gloves. But summer is coming and I will miss those holidays too. As a student the school holidays were like a gift for us to catch a break and not think for a while which was why it was imaginable how someone would go on for the entire year without a break, with only the promise of a mere 21 days annual leave!! Right now I am sure we are all looking forward to taking that annual leave when the time is right. The worst rude awakening I must say, has to be presenting in front of clients and managers. As a student you have the same class mates for almost four years therefore presenting in front of them becomes the norm over the years and your lecturer will always go gently on you. What they don’t tell you at University is that in the real world, time is money and clients pay money to see you present therefore there is no room for error. Clients are not there to give you a score and boost your ego, they expect nothing less than 100% and they will let you know without a second thought. For a graduate this can feel like you are being fed to the sharks, you either get eaten or you swim for your life. At the end of the day, it is all an experience that is meant to groom us into better professional and make us a part of the Red Team. All the sacrifices are worth it and they lead us to being better and more polished professionals. So if you are interested in joining the ECEMEA Sales and Presales Internship Programme, please have a look at http://campus.oracle.com for more information and for our latest vacancies and internships. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

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  • Why to let / not let developers test their own work

    - by pyvi
    I want to gather some arguments as to why letting a developer testing his/her own work as the last step before the product goes into production is a bad idea, because unfortunately, my place of work sometimes does this (the last time this came up, the argument boiled down to most people being too busy with other things and not having the time to get another person familiar with that part of the program - it's very specialised software). There are test plans in this case (though not always), but I am very much in favor of making a person who didn't make the changes that are tested actually doing the final testing. So I am asking if you could provide me with a good and solid list of arguments I can bring up the next time this is discussed. Or to provide counter-arguments, in case you think this is perfectly fine especially when there are formal test cases to test.

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  • Which nvidia driver from additional drivers option should I choose?

    - by sud_the_devil
    I have NVIDIA Geforece 7025 / nForce 630a integrated gfx card on my UBUNTU 12.04.And I have 4 options in Additional drivers: NVIDIA accelerated graphics driver (version 173) NVIDIA accelerated graphics driver (post-release updates)(version current updates) NVIDIA accelerated graphics driver (version current)[Recommended] NVIDIA accelerated graphics driver (post-release updates)(version 173 updates) I am currently using the First option. My Problem is there I can't update the version 173 to the latest version of drivers using xswat PPA. Whenever I do it and reboot but the NVIDIA xserver sttings always shows me the same version. Which option would allow me to update my drivers to the current version?

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  • Getting "System program problem detected" pops up regularly after upgrade

    - by grrrbytes
    This started to happen immediately after I had rebooted the first time after doing a system upgrade. It first starts with a dialogue that says "System program problem detected". Then when I try to hit 'report problem' not much happens. I am led through a dialogue that always ends up the problem cannot be solved. I am aware this is not a lot of information, however I'm not sure which information I need to publish and how should I obtain it to debug this problem. Here's a screenshot!

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  • Configure application priority to access the network

    - by Mario
    I noticed that when I am running applications such BitTorrent all the other applications have trouble accessing the network. I am sure it would be possible to limit BitTorrent's network usage but what I really want is to be able to set priorities to applications (or protocols) accessing the network. For example, let's say I put max priority for the browser (or http) and then, no matter how much bandwidth was using at the time, the http packets would always go through. Is this possible? Is there an application for Ubuntu to do this or a way to configure this on Ubuntu directly?

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  • Is it possible to learn maths via programming, or you should learn maths for programming?

    - by SAFAD
    I am not the best in maths, not very horrid either, but lower than the average, I've always been thinking to improve my maths, but schools and books didn't do the job because I get bored too fast. The only thing I don't get bored with is coding and gaming, so I thought what if coding a program that solves mathematical problems will help me understand maths better, most of these problems are limits (calculus), functions, Differential calculus, and some other subjects (I already said am not that good) similar to the previous noted. My question is: Am I able to achieve a better knowledge in maths if I do some specific program coding, and if possible, is physics possible that way too? Or am I wrong and Maths should be learned before programming to help improve my coding? P.S : C++ is the preferred language.

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  • Burn MP4 to CD in ubuntu 12.04

    - by xyc
    I have an mp4 file (115,8 mb). I want to burn it to a Sony CD-R (700 mb) to watch on tv. I tried to do it with DeVeDe from ubuntu software center but it always give me this error: "Conversion failed. It seems a bug of Mencoder." Can anyone tell me an other method to burn my mp4 to cd? Or can anyone tell me how to fix DeVeDe's error? I use a TOSHIBA computer (64 bit) with windows 7 home premium and ubuntu 12.04 LTS (installed via wubi.exe). Thx.

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  • Which is Better: Revo Uninstaller or a Free Alternative?

    - by The Geek
    The results might surprise you! Our friends over at 7 Tutorials did some testing and found that the free IObit uninstaller application actually stacked up pretty well against the paid solution from Revo—though perhaps with a few less features. Note: we’ve always been fans of Revo Uninstaller around here, since it does have a lot of features to help clean up bad apps that the free alternatives don’t have. Either way, the 7 Tutorials article is worth a read. Roundup of Software Uninstallers – Reviewing IObit vs Ashampoo vs Revo [7 Tutorials] Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive Follow How-To Geek on Google+

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  • My Brother printer doesn't accept quality settings anymore - what can I do?

    - by rearlight
    I have a Brother MFC-465CN network printer. It uses the brother-cups-wrapper-bh7 and brother-lpr-drivers-bh7drivers. Now, when I print (which works perfectly fine) I try to print in "fast normal" settings to save some ink. I use LibreOffice and Ubuntus default PDF-viewer to print and set the settings in the print dialog manually. "Fast normal" is the default printing setting (in the Ubuntu GUI printing config). But the printer always prints in "normal" or even "fine" quality settings which takes forever and uses much more ink. So, what can I do about that? Thanks for your help in advance!

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  • MVC 2 Breaks my Charts?

    - by GeekAgilistMercenary
    I wonder if anyone has had issues with running MSCharts with MVC 2?  I have tried a couple of different issues, but still have not got them to render correctly.  In the end I always end up with broken image links.  Has anyone seen this? I have no errors displaying in my MVC 2 Application build or anything, nothing specific that leads me to any explanation.  If anyone has any ideas, please leave a comment or shoot me an e-mail; adronhall at gmail dot com.  I would greatly appreciate any insight you MSChart Elite may have.  : )

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  • Announcement: How-To Series Explaining Customizations Step By Step

    - by Oliver Steinmeier
    Yesterday we officially launched our new YouTube channel.  Today we are announcing another initiative that we have been working on for a while: to help you learn common customization tasks, we are going to publish a series of detailed How-To documents with lots of screenshots.  Many of these will also be the script for a YouTube video, giving you the choice to see it in action or go through the steps yourself guided by a PDF document. The focus of the initial set of How-Tos will be JDeveloper/ADF customizations, but over time we will expand into other areas.  Today's first document is meant to get everyone up to the point where a JDeveloper environment is up and running: a white paper that shows you how to set up JDeveloper, configure the integrated WLS domain, and make a very, very simple customization work. As always we are looking for your feedback.  Please let us know whether this is helpful for your work or learning, and what use cases you would like to see us document in these How-Tos.

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  • Blocking path scanning

    - by clinisbut
    I'm seeing in my access log a number of request very suspicious: /i /im /imaa /imag /image /images /images/d /images/di /images/dis They part from a known resource (in the above example /images/disrupt.jpg). All comming from same IP. Requests varies from 1/sec to 10/sec, seems somewhat random. It's obviously they are trying to find something and seems they are using a script. How do I block this kind of behaviour? I though of blocking the IP request, at least for a given time. Keeping in mind that: Request intervals seems legitimate (at least I think so). I don't want to end blocking a search engine bot, which may find 404 urls too (and that's a different problem, I know). ¿Do they use always same IP?

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  • Units in tile world

    - by Vilzow
    I've started to make a 2D sidescroller, the camera and world rendering works as I expect, but now comes the physics part of world. What I need is that one tile in x direction (or y direction) should correspond to 1 meter. Since I have a variable time step (android mobile game), I can't figure it out, since the timing and velocity always will be dependent of the device. So, is there any good way to make one tile to correspond 1 meter? This would be good, otherwise the physics implementation would later be weird.

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  • Synaptics touchpad sensitivity. Issue?

    - by Dave
    Just installed 12.04 LTS and I experience some problems with my touchpad. Everytime I tap/double tap the touch the cursor is moving around (not static as should be) (for example if I want to close a window, I click on "x" button from touchpad, the cursor is moving and not always hit the "x" button). Touchpad buttons left click, right click are working well, but tap not. Did u guys experience the same problem? Is there something related to sensitivity? How to fix it? PS: on Ubuntu 11.10 didn't had this issue

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  • My internship mentor doesn't allow me to do anything my way [closed]

    - by naveenk903
    When I started my internship, I was assigned a project. My internship mentor told he would just guide me if there was any problem. I started reading research papers and other works related to my project and completely understood it. But, when I started to implement my design, since then my mentor always order me to do things his way even though his method is crap. There are some things which can't be done but he wants results using his method (not possible). Because of him, I have lost all my interest from project. What to do?

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  • How can I fix intermittent iSight camera functionality on a Macbook Pro 5,2?

    - by Mmmm
    I have a Macbook Pro 5,2 laptop dual booting OSX and Ubuntu. The built-in iSight video camera works only sporadically. By that I mean that sometimes if I boot and try to use the camera it does not work (most of the time) but other times it does. I don't have good repeatable data regarding when it does vs. when it doesn't other than to say that it always seems to work right after I upgrade to a new Linux kernel with the Update Manager and reboot, but then eventually stops working again until I upgrade the kernel again. That is hard to test repeatably, so it's hard to know for sure that that is the case. This has happened consistently with every version of Ubuntu from 10.10 through 11.10. I can get around this by booting into the OS/X partition, since all of the hardware obviously works perfectly on that side of things, but it would be great if I could remain in Ubuntu and do the same thing. Thanks in advance for any inSights.

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