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• HP 655 notebook (ubuntu 12.04) keeps consuming energy after closing the lid

  - by Bastian van Binsbergen

  I am unable to change power settings so that when I close the lid the battery stops consuming energy. There are three options in the power settings menu: When the screen is closed: 1 Do nothing 2 Pause 3 Sleep First I could not change anything. I see all the options but I could not click on option 2 and 3. (grey text instead of black) I already made it possible to put in to sleep mode. But I can't pause (suspend) the laptop. Anyone an idea?

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• Connecting BSNL Broadband Internet in Ubuntu

  - by user10026

  Hi friends I am not able to connect my broadband connection with ubuntu and it doesnt work. The connection works fine when I use Windows7 but when i use ubuntu I am not able to access the internet. I followed various steps mentioned in various sites and still could not find a solution. I have installed ubuntu 8.04 in my system. The interface eth0 is not at all detected and when i use the menu system-administrator-network I am not getting an option for wired connection. Just the WIreless connection and Point to Point connection tabs are available.. It's really urgent.. I'll be very happy if u guys can propose to me a working solution to deal with this problem.. Thanks in advance

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• 12.10 nautilus on dell xps 12 does not work

  - by user108664

  I have installed 12.10 on a new Dell XPS 12 ultrabook. Everything seems to work properly right now, including the touch screen, except for nautilus. The left pane works properly, I can select an item on the left and the contents will show up on the right, but when I go to do anything with the contents on the right nothing happens, I can't double click to open, I can't right click to bring up a menu. I can however hold down the left button and to draw a box to select more than one item, but I can't do anything with the selected items. I did not have these problems when I tried 12.04, but unfortunately the touchscreen does not work out of the box on 12.04 and 12.10 seemed to be the faster way go. Any ideas? How can I log what is happening when I try to do anything in nautilus?

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• should I create a new class for a specific piece of business logic?

  - by Riz

  I have a Request class based on the same Entity in my Domain. It currently only has property definitions. I'd like to add a method for checking a duplicate Request which I'll call from my controller. Should I add a method called CheckDuplicate in the Request class? Would I be violating the SRP? The method will need to access a database context to check already existing requests. I'm thinking creating another class altogether for this logic that accepts a datacontext as part of its constructor. But creating a whole new class for just one method seems like a waste too. Any advice?

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• Installed Ubuntu on a macbook pro and am running into errors with internet

  - by user209270

  I recently installed Ubuntu (64 bit, 12.04) on a mid-2012 Macbook Pro, and I've been having some really annoying issues. Chief among them is that my wireless doesnt seem to function properly. I've installed Ubuntu on this mac before, and again this time the drivers for the wireless card were missing. I, using something along the lines of sudo su apt-get update apt-get upgrade apt-get b43-fwcutter firmware-b43-installer A new problem I've been experiencing however is that none of the networks available in my home show up. I've been able to connect theto themm by going into "Connect to hidden networks" and typing in the network name and password, but when I restart the computer my network (let's just name it "Network1"), doesnt show up. I tried going into "Edit Connections" and it shows up in the wireless tab, but it is never connected to automatically or shows up in the drop-down menu. Any help?

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• Why do we need private variables?

  - by rak

  Why do we need private variables in classes in the context of programming? Every book on programming I've read says this is a private variable, this is how you define it but stops there. The wording of these explanations always seemed to me like we really have a crisis of trust in our profession. The explanations always sounded like other programmers are out to mess up our code. Yet, there are many programming languages that do not have private variables. What do private variables help prevent? How do you decide if a particular of properties should be private or not? If by default every field SHOULD be private then why are there public data members in a class? Under what circumstances should a variable be made public?

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• Without using a pre-built physics engine, how can I implement 3-D collision detection from scratch?

  - by Andy Harglesis

  I want to tackle some basic 3-D collision detection and was wondering how engines handle this and give you a pretty interface and make it so easy ... I want to do it all myself, however. 2-D collision detection is extremely simple and can be done multiple ways that even beginner programmers could think up: 1.When the pixels touch; 2.when a rectangle range is exceeded; 3.when a pixel object is detected near another one in a pixel-based rendering engine. But 3-D is different with one dimension, but complex in many more so ... what are the general, basic understanding/examples on how 3-D collision detection can be implemented? Think two shaded, OpenGL cubes that are moved next to each other with a simple OpenGL rendering context and keyboard events.

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• Windows not recognizing its system drive after installing Ubuntu 11.10 alongside with windows 7. What to do?

  - by user53322

  After installing Ubuntu 11.10, it boots perfectly. But when I select Windows 7 from the GRUB menu, it restarts after showing the boot logo. I tried to repair the boot loader but the process failed. Then I decide to repair with system recovery disc. There I realize the system is unable to find any existing system. Then I boot into ubuntu and here I can see all the existing drive (with all content). All drives are still NTFS file system (I have 4 drive: 3 are NTFS another 1 is ext4). Tried to repair with gparted partition tool, but came with no luck. Also tried to reinstall windows but installer don't show any available drive. What to do? (something to do with Ubuntu?)

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• ubuntu 12.04 sound not working in applications

  - by user109887

  I run Ubuntu on a DELL Vostro 3500 laptop. Everything was working perfectly since this morning, after an update... I can't play any multimedia sound anymore, that includes youtube and others, mp3 in Rythmbox, sound of video in VLC. I can see my device in the setting window and I can play tests sound, but nothing else. Any idea? EDIT: I'm switching very often from to HDMI output, which is deconnected right now. I've tried running VLC, and in the audio menu, you can choose the output so now I can listen to music via VLC but not with other programs. Looks like ubuntu is not totally switching the audio device after unplugging the HDMI cable. Is there any command line which can do so?

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• How to get Skype's indicator on 12.04 [closed]

  - by herpson

  Possible Duplicate: How do I get the Skype status icon back? (on panel/tray) After upgrading to 12.04 (64bit), I've started installing the programs that I used to have on 10.04, one of them is skype. Downloaded the .deb file from Skypes website and installed it using the Ubuntu software center. However, when I launch skype, it doesnt add an indicator to the top menu like it used to, which means that when I click the 'x' on the program's window, it goes away, I cant reopen it, and I'm still logged in. How can I get the indicator back? Thank you

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• How can you procedurally place objects in a non-gridded game?

  - by nickbadal

  This is a follow-up question to this question. I mistakenly worded the question, but got a good answer before I could correct myself, so I didn't want to delete it. Sorry! Now that I know that it is possible, I'd like to implement procedural world generation, but I don't want it to look gridded or blocky, where everything is obviously placed on an integer grid. I know that you can do this in gridded worlds by inputting a square's x and y into a noise function, or similar, but how can I generate a more natural looking object placement using procedural methods? This is in the context of an adventure game, if it matters.

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• Cannot boot from Ubuntu Live CD on preinstalled Windows 8 laptop

  - by seferov

  I bought a Sony Vaio with Windows 8 yesterday. I want to install Ubuntu, (latest version), alongside Windows. There is an assist button on the laptop to enter the boot option menu, (otherwise, Windows 8 is booted by default. Whenever I choose the, 'boot from CD' option, it says 'No operating system found'. CD is valid since I tried it on another computer and it worked fine. I have tried both versions, 12.04 and 12.10. What is the problem, or how should I install Ubuntu on my laptop?

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• How do I reset the password for Ubuntu 12.04 LTS

  - by user169930

  I installed Ubuntu 12.04 LTS using Wubi in the D: drive of my PC. I have Vista installed in the C: drive. I have forgotten my password for my Ubuntu Admin Account. I only have only access to the Guest login. Please note, I don't see any GRUB menu and get only Vista & Ubuntu as options while booting. I can't get into Recovery Mode of Ubuntu using Shift, ESC or any other way. Please let me know how to reset the password.

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• Navigation for ASP.NET Web Forms project published on codeplex

  Navigation for ASP.NET Web Forms manages movement and data passing between aspx Pages in a unit testable manner. There is no Client-side logic, so it works in all browsers, and no Server-side cache, so it works with the browser back button.Features include loosely coupled Pages, typed data passing, empty code-behinds, context-sensitive bread crumb trail, ASP.NET Data binding integration, automatic ASP.NET Ajax history navigation and many more.The source code, binaries and comprehensive documentation...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• PC won't boot up after installing 11.10

  - by bakhshu

  I have a HP/Compaq s1010z (AMD64) desktop and installed 11.10 from a CD (using the entire disk). So it formatted the entire drive, went through installation and then it ejected the CD and asked me to click the Restart button, which I did. It rebooted fine the first time, but any time thereafter, it fails. Meaning, after the initial BIOS screen, the monitor seems to be stuck in limbo with a text cursor blinking on the top left corner, as if it can't find anything to boot from. At first I tried reinstalling (reformat entire drive again) - no improvement. Then I did an in-place re-installation (leave home dirs in place, just redo the OS), nothing there either. Then I put in the 11.04 CD, changed the boot order to CD first, and got the CD menu, chose 'Boot from first hard disk' and it booted fine. The problem is that I can't boot without the 11.04 CD, how ironic! Any ideas?

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• How list of references are represented in UML and does that break any DDD rules ?

  - by Rushino

  Hello, How a list of references are represented in UML ? Example : a Calendar contain a list of phases which contain a list of sequences which contain a list of assignations Calendar is root because phases and sequences and assignations only work in context of a calendar. But assignations must hold multiple references to groups of students. (Must work two sides) Would like to know if its possible to hold multiple references of an aggregate root (groups) inside another aggregate root (calendar) member ? Also how a list of references are represented in UML ? it is a simple relation ? Also does this break any rules in DDD domain ? Thanks.

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• Connecting with a BSNL Broadband Internet

  - by user10026

  I am not able to connect my broadband connection with ubuntu and it doesnt work. The connection works fine when I use Windows7 but when i use ubuntu I am not able to access the internet. I followed various steps mentioned in various sites and still could not find a solution. I have installed ubuntu 8.04 in my system. The interface eth0 is not at all detected and when i use the menu system-administrator-network I am not getting an option for wired connection. Just the Wireless connection and Point to Point connection tabs are available.. It's really urgent.. I'll be very happy if u guys can propose to me a working solution to deal with this problem..

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• Retrieve the coordinates of the *occluding* (closest/drawn) pixels during 3D overlap, using OpenGL?

  - by Big Rich

  Hi, Sorry if the question is not worded well, I'm a new to both 3D and OpenGL. How could I go about obtaining the 3D coordinates of the occluding object, at the point where occlusion is happening (i.e. the 'intersection' of the object in front/closest to the screen)? Just to offer a [very] rudimentary, visual, example, if you were to form an index-finger cross, with your right hand closest to your face, I'd like to know the coordinates of the part of your right finger which obscures the other finger (obviously back within the OpenGL context - no jokers ;-) ). If there is a way to find out both about the occluder (hider) and the occluded (hidden) objects in OpenGL, then that would be of great use, also. Cheers Rich

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• Get root access for copying files to /usr/share/...?

  - by Vinaychalluru

  To be short, I want to copy a folder to a location /usr/share/screenlets/..... I don't know how to do it. I am using Ubuntu 10.04. I tried by logging in as root from terminal giving "su with my password". I even changed my user account type to ADMINISTRATOR by giving the root password when asked, yet, no use. Think all of you know that, even the option PASTE in the context menu's list in the folder "/usr/share/..." is INACTIVE. How can I copy those files?

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• How to debug slow session start of Gnome 3?

  - by user65521

  After Upgrade from 11.10 to 12.04, the login process of Gnome 3 is extremely slow (It takes in the order of 60 seconds when it was in the order of a few seconds before the upgrade (Harddisk is a SSD!)). Running "top" in a VT shows that gnome-shell is producing about 90% CPU load while dbus-daemon is taking roughly 10%. The moment when CPU-load of gnome-shell drops to normal levels (around 2-3%) corresponds to the time the login process is terminated and the desktop is displayed. De-activating the four gnome-shell extensions (Alternative Status Menu, Quit Button, Remove Accessibility, system-monitor) that I have installed does not have any effect on session start up time. Login to Gnome classic does not show the slow session start. The system logs do not show anything suspicious. Thus, what is the best way to identify the underlying problem?

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• After upgrading to 12.04 lts server, the mouse is intermittently working

  - by Jason

  After this upgrade, I've had a problem with the mouse intermittently working and programs crashing (like zentyal crashing and the error reporting application crashing) I also had an error on the screen that said: "Could not grab your mouse. A malisious client may be eavesdropping on your session or you may have just clicked a menu or some application just decided to get focus. Try again." What's going on with this system? Did I really get malware that quickly? This system has been boxed up since 2011. I only did the upgrade today... In regards to the mouse I can move it around, but when I click on something, it doesn't work.

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• Is there a phrase or word to describe an algorithim or program is complete in that given any value for its arguments there is a defined outcome?

  - by Mrk Mnl

  Is there a phrase or word to describe an algorithim or programme is complete in that given any value for its arguments there is a defined outcome? i.e. all the ramifications have been considered whatever the context? A simple example would be the below function: function returns string get_item_type(int type_no) { if(type_no < 10) return "hockey stick" else if (type_no < 20) return "bulldozer" else return "unknown" } (excuse the dismal pseudo code) No matter what number is supplied all possibiblites are catered for. My question is: is there a word to fill the blank here: "get_item_type() is ______ complete" ? (The answer is not Turing Complete - that is something quite different - but I annoyingly always think of something as "Turing Complete" when I am thinking of the above).

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• Changing location after CommitAnimations

  - by Will Youmans

  I'm using the following code to move a UIImageView: shootImg.image = [UIImage imageNamed:@"Projectile Left 1.png"]; [UIView beginAnimations:nil context:nil]; shootImg.center = CGPointMake(shootImg.center.x+1000, shootImg.center.y); [UIView commitAnimations]; This works but what I want to do is after [UIView CommitAnimations]; I want to set the location of shootImg using CGPointMake. If I just put it after commitAnimations then the animation doesn't fully complete. Any suggestions? I'm not using any frameworks like cocos2d and if you need to see any more code just ask.

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• Black screen on Ubuntu 12.04

  - by user1648371

  I've just upgraded to Ubuntu 12.04 and I'm experiencing some problems. The first thing I noticed is that when I click the Workspace switcher all I get is a black screen (I can guess where the different workspaces are located and clicked on them, not a practical solution though). In addition when I lock the screen or suspend the laptop (a Vaio VPCEB4M1E) I get a shifted screen (I see the right most vertical stripe on the left size of the monitor and nothing about all the rest, to put it clearly I can see the gear that allows me to turn the pc off, etc, but not much more..) when I go to the additional driver menu I see the "ATI/AMD proprietary FGLRX graphics driver" are installed and the post-release update version is available. I don't know if the problem is driver related, so before doing anything I'd like to get some suggestions from you guys. Thanks you!

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• Custom widgets/controls in application indicators

  - by markitusss

  I want to develop an app for ubuntu, that integrates inside the calendar indicator/menu. It should allow to enter info right from it, and have several controls like input boxes, drop downs, spinners and buttons. Is this possible to integrate/replace the standard date/time indicator? If not, is it possible to create it as a separate indicator that when clicked opens a popup with all the controls and stuff? I want it to look as part of the sys tray and not as a separate desktop app. I'm using Quickly for this. Thanks for your help!

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