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• Ideal laptop specs for a Computer Science Masters student? [closed]

  - by Ayush

  I have a HP pavillion core 2 duo 2 GHz and 4 GB RAM, and it is painful to use this machine for any kind of coding. Eclipse (especially Juno) literally takes 5 minutes to load. And even after that, everything is lagy. Apart from school stuff, I also use my computer as a television. I watch Hulu, Netflix, YouTube etc in 720p, and this laptop gets hot as hell and the fans are loud enough to wake somebody up from deep sleep. I DON'T use my laptop for Gaming or Video/Photo Editing. I'm looking to buy a new laptop (in which most widely used IDEs would work smoothly and playing hi-def videos wouldn't be too much for the machine to handle) any suggestions (on hardware specs) would be greatly appreciated. Thanks

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• Unable to connect to internet

  - by Peter Schriver

  I just upgraded to 12.10. Everything appears to go well but I am unable to connect to the Internet. The LAN is fine and I can view my shared files but no e-mail or access to web pages. My other computer which is running 12.04 or older seems to connect fine. I only upgraded one to make sure things would be ok. I am currently connecting fine with a wireless Windows laptop. Output from cat /etc/resolv.conf # Generated by NetworkManager nameserver 127.0.0.1

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• How to specify 'root' in path in text file

  - by DeanGrobler

  I'm following this tutorial located here on how to create a launcher for eclipse in unity. Everything is going pretty well so far, I've managed to successfully create the launcher but when I click on it, my system complains that the path to the exec is wrong. My exec for eclipse is located here: ~/opt/eclipse/eclipse And if you look at the tutorial you have to create a file and set it's contents like so: [Desktop Entry] Type=Application Name=Eclipse Comment=Eclipse Integrated Development Environment Icon=eclipse Exec=./opt/eclipse/eclipse Terminal=true Categories=Development;IDE;Java; In my case I have to provide the full location for the exec and there are a number of things that I tried that didn't work I set 'exec' to 'Exec=~/opt/eclipse/eclipse' , 'Exec=/opt/eclipse/eclipse' and 'Exec=root/opt/eclipse/eclipse' and none of these worked.. What should I set it to in order to fix the path so that my luancher works? Update------------------ I tried to list those 2 directories and what i get is this:

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• Why are Back In Time snapshots so large?

  - by Chethan S.

  I just backed up the contents of my home partition onto my external hard drive using Back In Time. I browsed to the backed up contents in the external drive and under properties it showed me the size as 9.6 GB. As I read that in next snapshots I create, Back In Time does not backup everything but creates hard links for older contents and saves newer contents, I wanted to test it. So I copied two small files into my home partition and ran 'Take Snapshot' again. The operation completed within a minute - first it checked previous snapshot, assessed the changes, detected two new files and synced them. After this when I browsed to the backed up contents, I was surprised to see the newer and older backup taking up 9.6 GB each. Isn't this a waste of hard drive space? Or did I interpret something wrongly?

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• Should I submit my RSS feed as Google Sitemap?

  - by Svish

  I currently have no sitemap for a website I'm creating. I do have an RSS feed which includes the N latest updated posts on the site. It doesn't include everything on the site though, just blog posts. Creating a full sitemap would be a bit of a hassle I think. Should I submit the feed instead? Is there a difference between using a regular sitemap and a feed? Is it important to have a sitemap? What happens when you do/don't?

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• Can various browsers be assumed to maintain predictible state accurately in multiplayer online gaming?

  - by Nikos

  With many games it is said that server will assume that clients keep track of the world accurately. Assuming this is true, for a browser based multiplier space invaders game you would only tell the client when new bullets or the players ship moves and everything that behaves in a predetermined manner in the js client. It would be expected that positions would be the same in the browsers. Do you think you could trust browsers to do this? I feel that timings could differ between rendering loops and cause positions to get out of sync and might just get the server to maintain all the positions to make sure.

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• Why was Apple&rsquo;s prediction on iPads so wrong?

  - by BizTalk Visionary

  by Robert Scoble on April 14, 2010 Apple has announced it is selling far more iPads than it expected and is delaying the worldwide launch by a month. I am seeing this problem in US too. There are lines in stores (when I went back to buy a third iPad I had to wait in line). The demand is nuts for iPads. So why did Everything Apple guess its prediction so wrong? …….. Read more....

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• Newly compiled (patched with -ck) 3.3 kernel won't boot up

  - by Shiki

  Screen is garbled. Reaaaally garbled. Like some sort of scrambling image from a movie. I can upload some pictures if needed. To be short with the description. Here is my 3.3 + ck .config file: http://pastebin.com/aP2F9RcH The dmesg log of the failed kernel: http://pastebin.com/esc2Rtka The computer is a ThinkPad T500 laptop. I have selected everything needed for the computer (as far as I can tell, but check the .config). The normal generic Ubuntu kernel boots and works perfect!

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• Ubuntu 12.10 not properply working on Asus u46E after Update

  - by John Oakland

  I recently installed the latest Ubuntu update on my laptop and since then, the alignment on the browser is messed up, the mouse is not working, and I can't connect to the internet. Before it was working perfectly. Any ideas on what to do? Thanks for any feedback FYI: I am right now using windows since I have both linux and windows on my laptop. Also, when booting I do have the option to boot previous ubuntu versions, when I boot the previous unbuntu version on my laptop, everything works accept except the internet. (the mouse works, alignment is proper)

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• Unbuntu stuck at boot after update

  - by RandomUbuntuUser

  Well, I installed Ubuntu 11.10 via Wubi on my MSI U270. Everything was running fine, I even got fglrx working after I manually downloaded a .run and executed it. Then I thought of running the complete updates that were on the update manager. I did run it, it took a whole night to complete, I waited a bit as the part came where I had to click on "Restart now". I clicked it, after that I'm stuck at the purple screen with all dots lighted orange. I've been waiting for it to start up for more than half an hour, and there used to be occasional HDD blinks which isn't happening now. Should I reboot? Edit: After the restart not while restarting, forgot to mention that and by the way, is there a way to see anything that's happening just so I know that it ain't stuck?

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• Deploying Asp.net MVC web application [migrated]

  - by Pankaj Upadhyay

  I have been trying to find a neat tutorial, guide or step by step instructions for deploying an Asp.net MVC3 webapp but have found nothing so far. Everyone talks about his version of the stroy and different type of MVC versions. Right now, I have build a simple Asp.net MVC web application which i need to deploy on my shared hosting account. In a very simple manner, I need to know which files should i copy. Do i upload everything in my webproject directory to the server including the controller directory, views, models, content and bin directory ?. What about the Global.asax, web.config, packages.config, myapp.publish.xml. In short, I have no idea which files should be uploaded and which should be not. I am sure of one thing that i need few(MVC and Razor dlls) following dlls in bin directory. Just treat me as someone who has never deployed any website NOTE:- I don't have VS SP1 installed and it doesn't install either. Basically i need a manual procedure.

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• Atheros AR5BWB222 Wireless Intermittent Connectivity

  - by Bart

  So I recently installed Ubuntu on my Acer Aspire V3-551 laptop. I have an Atheros AR5BWB222 wireless adapter. Everything works fine except for the wireless. I can sometimes connect to the wireless, but most of the time it will be making an attempt to connect and then enver connect. Or it will connect, but it will only stay connected for about 10 seconds before getting disconnected from the wireless. All the other drivers updated through System SettingsAdditional Drivers are fine, even the Ethernet. Its just the problem with the wireless. I've tried a power managment setting, tried looking for additional updates, but nothing fixes my problem. Is there any solution for my particular wireless card?

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• Roll Your Own Flexi-Ties to Secure and Store Frequently Used Cables

  - by Jason Fitzpatrick

  If you’re looking for an easy way to hang up or tidy frequently used cables, these DIY soft ties are durable, resuable, and easy to make. Soft ties ties are metal wire ties coated in rubber; people use them for everything from securing computer cables to shaping garden plants. Instructables user Bobzjr wanted a lot of them but couldn’t find anyone that sold bulk roles of the soft tie material. To that end he did a little exploring at the hardware store and found the perfect combination of wire and rubber to roll his own. Hit up the link below for more information on his DIY soft tie project. Roll Your Own Flexi-Ties (Soft Twist Ties) [Instructables] How To Properly Scan a Photograph (And Get An Even Better Image) The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage

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• What's a good open source cloud computing software? [closed]

  - by boy

  In particular, the "cloud" computing that I'm referring to is: I'm going to get some Linux servers. Then I have pretty big computing tasks to do every day. So my goal is to be able to run some shell command to request an "instance" (ie, if a server has 4 CPU, then the computing software will configure that server to have 4 instances, assuming all my tasks are single thread). Ideally, then I can run the following command: ./addjobs somebatchfile where somebatch file contains one command per line ./removejobs all ./listalljobs (ie, everything is done in shell. And the "computing software" can return me the hostname that's available in some environment variable, etc) And that's all I needed. I run into OpenStack.. but it seems too complicated for this purpose (ie, it does all the Imagine sharing stuff, etc).. All I want, is something SIMPLE that manages the Linux boxes for me and I'm just going to run shell commands on them... Is there such open source software? Thanks,

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• Effective way of keeping past projects with their working development environment?

  - by Korey Hinton

  I find that whenever I want to go run a past project, it will take a long time before I can find it and before I have everything set-up again for it to be able to run. For example, I have python projects I created in Linux, and it depends on software packages that are easily installed in Linux, yet I no longer have the Linux VM I was using. And some of my other projects depend on other variables like web server configuration, PATH variables, sdk, IDE, OS version, device, etc. Does someone have an effective way of handling this issue? As of now I have only concerned myself with keeping the source code backed up yet it is difficult re-establish the working development environment and it is also difficult to keep the working development environment around as well.

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• How to configure ubuntu for lightweight low-memory usage?

  - by augustin

  I just upgraded an old, secondary computer to the latest Kubuntu (10.10). It seems the effort was a bit too much for the hardware and one 512MB memory module died. I tried to take it away, clean the connectors, put it back several times, but to no avail. Until such a time I can find a second hand DDR memory module, I am left with a meagre 256MB RAM, which is below the official requirements (384MB) to run Kubuntu/KDE. Indeed: the computer constantly swaps the memory, making everything painfully slow. Since Kubuntu is already installed and I use it on all my computers (and I want to keep KDE for when I really need it), how can I configure ubuntu to squeeze out every bit of unnecessary memory usage? This is a secondary computer but still very useful. We use it mostly for web browsing. A "lightweight" tag is missing.

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• Learning Java with a simple project

  - by phodu_insaan

  As i remember the time when i was learning PHP, it was suggested to build a simple blog or a forum after reading the language fundamentals. I was told/read that this would cover everything that I would need to learn about PHP from a beginners book. This advice was out there in a number of places, and after following and working with PHP it seems quite good advice. Now, i am learning Java and reading the book "Thinking in Java" by Bruce Eckel. I wonder if there is any such set of similar, small projects that I could take up, that would cover all the essentials and most of what is covered in the book.

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• How to reduce noise in Skype?

  - by tkc

  According to Alsamixer I do have a HDA Intel soundcard with Nvidia MCP77/78 HDMI chip (Realtek sound card on MSI notebook). When I use Skype under Ubuntu 12.04 for video calls, the other side hears background noise such as in Windows when you have your microphone boosted. In fact they can hear everything, even the fans turning on. There is nothing tweaked on Ubuntu's fresh installation. Also tried this site: https://code.launchpad.net/~ubuntu-audio-dev/+archive/alsa-daily/+packages , but there are no *.deb files that I can test if any fix the problem. The question is if there is a way to add/tweak something to enable on software level the noise cancellation like the Windows sound drivers have that option. I use my build in mic.

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• Lost desktop settings in KDE

  - by Luke

  After next unsuccessful attempt to install ATI fglrx drivers, when I also changed GRUB config a bit (GRUB_CMDLINE_LINUX_DEFAULT="radeon.modeset=0 and GRUB_CMDLINE_LINUX="nomodeset"). When I restored everything to default (uninstalled fglrx, restored default values in GRUB config and xorg.conf) KDE logged me into completely new desktop, with (I suppose) default configuration. Is there a way to restore my previous desktop settings? What could be the cause? SOLVED: Something was messed out with display settings. Search for 'Display Configuration' and there deselect one display. Or is there a better option?

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• SSH access failure from Ubuntu 12.04 LTS VM

  - by begueradj

  I installed 2 VMs on VirtualBox. VM 1: Windows XP with FreeSSHd and PuTTY installed.IP address: 10.0.0.2 VM 2: Ubuntu 12.04 LTS Server Edition with OpenSSH installed.IP address: 10.0.0.3 From VM 1, I run PuTTY with the IP address of VM 2 (10.0.0.3) and port number 22. I get prompted to input the username and password of VM 2 and everything works fine.From VM 2, I run on the terminal (Ubuntu): ssh [email protected] , I get prompted to enter the password of VM 1. I do so, but it says my password is invalid (while it is the correct one). I even deactived the Firewall on VM 1, but still the problem is here: my password is not accepted from VM 2. Is this due to some settings maybe I must do on VM 1 (Windows XP) so as I can access it with SSH ? Maybe it has something to do with the Firewall of Windows XP ?Important information: ping 10.0.0.2 from VM 1 and ping 10.0.0.3 from VM 2 are working successfully.

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• How can I change this isometric engine to make it so that you could distinguish between blocks that are on different planes?

  - by l5p4ngl312

  I have been working on an isometric minecraft-esque game engine for a strategy game I plan on making. As you can see, it really needs some sort of shading. It is difficult to distinguish between separate elevations when the camera is facing away from the slope because everything is the same shade. So my question is: can I shade just a specific section of a sprite? All of those blocks are just sprites, so if I shaded the entire image, it would shade the whole block. I am using LWJGL. Are there any other approaches to take? Heres a link to a screenshot from the engine: http://i44.tinypic.com/qxqlix.jpg

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• Dynamic content realoding

  - by Kikaimaru

  Is there a relatively simple way to dynamicaly reload content files? (ie: effect files) I know i can do following: Detect change of file Run content pipeline to rebuild that specific file Unload ALL content that was loaded Load All content And use double references to reference content files. Problem is with step 3 (and step 2 isn't that nice too). But i need to unload everything because if i have model Hero.x which references Model.fx effect, and i change Model.fx file, i need to reload Hero.x file which will then call LoadExternalReference on Model.fx. So I guess question is, did someone mange to make this work without rewriting whole ContentManager (and every ContentReader) and tracking calls to LoadExternalReference?

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• Unity environment way too slow in Ubuntu 13.10

  - by Santiago

  Unity and its apps open too slowly whenever I open one. It takes a while for them to appear completely. Everything works properly when the window is already open. The biggest problem is with the dash: it's SO SLOW when I'm looking for an app although I have removed some lenses. What should I do or what can I do? These issues only occur with Ubuntu 13.04 and 13.10 whereas 12.04 works AMAZNGLY but I have issues when updating a package or installing a new one, that's why I don't opt for that one. Specifications: RAM: 2GB, Processor: Intel® Atom™ CPU N2600 @ 1.60GHz × 4, Graphics card: Gallium 0.4 on llvmpipe (LLVM 3.3, 128 bits)

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• Problems while upgrading from 11.10 to 12.04

  - by Jignesh

  I was upgrading from ubuntu 11.10 to ubuntu 12.04 using the alternate cd method. Everything went fine upto installing upgrades, but during the cleanup phase , it asked me to remove obselete packages or not, and to close all open applications. I used Alt+Tab to view open applications, and then it just hanged, I could only move mouse ,entire screen got blank, and I was forced to restart , leaving the upgrade in middle. After restarting my ubuntu 12.04 is working fine , I think ubuntu got upgraded as only cleanup and restarting phases were remaining when I restarted, can there be problems with this ubuntu, or is this fine ?

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• Window controls missing; Cannot maximise or minimize applications

  - by omg_scout

  Ubuntu 12.10 32 bits, fresh installation. How can I make Unity maximize or minimize a window? I see no button,option, anything, do I miss something big? Quick googling did not give me a piece of answer, too: On first screen, I have a terminal window. Only clue about maximizing it I found was pressing F11 which made it fullscreen, hiding left bar as well. I would prefer it to take whole free space instead of whole screen. How can I do that? On second screen, I have an opera browser which takes bigger part of the screen but I can't make it take whole screen. Restarting opera did not work. How do I minimize/maximize apps? Also, in case I would like to see the desktop, only solution I found was closing everything Help guys. I kind of like new GUI, but I can't have simplest tasks done there, I feel like I miss something big there.

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