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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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• At what point asynchronous reading of disk I/O is more efficient than synchronous?

  - by blesh

  Assuming there is some bit of code that reads files for multiple consumers, and the files are of any arbitrary size: At what size does it become more efficient to read the file asynchronously? Or to put it another way, how small must a file be for it to be faster just to read it synchronously? I've noticed (and perhaps I'm incorrect) that when reading very small files, it takes longer to read them asynchronously than synchronously (in particular with .NET). I'm assuming this has to do with set up time for things like I/O Completion Ports, threads, etc. Is there any rule of thumb to help out here? Or is it dependent on the system and the environment?

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• Where Are Multiple JUnit Test Methods Typically Placed in Code?

  - by Thunderforge

  I've just read the Vogella JUnit tutorial and found it very helpful in understanding how to use JUnit. However, I'm a bit confused about what the convention is for placing multiple test methods in code. The tutorial only places one test method in a class, then describes how you can use a test suite to group multiple test classes together. Does this mean that it's common practice for each test class to only have one test method and then test suites are used to chain them together? Or was that just unintended and instead common practice is to put multiple test methods in a class?

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• How can one get involved in the Ubuntu Brainstorm team?

  - by Jay

  I've heard it thrown around on a lot of blogs that Ubuntu Brainstorm is the "graveyard of good ideas". I have a bit of a passion for average end-users suggesting the kinds of software they want and they way they think their applications and computers could work. I'm interested in joining the Ubuntu Brainstorm team, maybe to facilitate ideas not getting buried and making it not seem like a dead platform. Unfortunately I'm not very plugged into the "community" so I'm not sure how to go about it. I was hoping someone might be able to point me in the right direction. Thanks.

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• Having different wallpaper per workspace in Ubuntu 12.04 [closed]

  - by Srijan

  Possible Duplicate: Is it possible to have a different background for each workspace? How to setup different wallpapers in different workspaces? As in previous questions asked as per the link mentioned below: Is it possible to have a different background for each workspace? Having problems with following steps in Ubuntu 12.04. gconf-editor doesn't have an option of show desktop in preferences in nautilus. How to go on about setting my workspaces? Have Ubuntu 12.04 with x86-64 bit architecture(if that is of any help) and working with unity. Is there in any way of customizing unity launcher also for different workspaces? Thanks in advance.

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• Is there an OSS license that works for this:

  - by mattcodes

  Say you started as SaaS service with freemium business model such 37Signals - Basecamp or Dropbox etc.. Is there an OSS license that says that you can use the source code etc.. but you cant release a SaaS based on it, esssentially released in good faith with non-compete expectations. e.g. if 37Signals released the source for highrise, basecamp etc.. someone could start 37signals4lesss.com (albeit once they built the same bit of provisioning logic) and damage the core business model.

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• OpenGL: Drawing to a texture

  - by Danran

  Well im just a bit stuck wondering how to draw an item to a texture. Specifically, i'm using; glDrawArrays(GL_LINE_STRIP, indices[0], indices.size()); Because what i'm drawing via the above function updates every-frame, i'm just totally not sure how to go about drawing what i have to a texture. Any help is greatly appreciated! Edit: Well unfortunately my graphics card doesn't support FrameBuffer Objects :/. So i've been trying to get the copy contents from backbuffer method working. Here's what i currently have; http://pastebin.com/dJpPt6Pd And sadly all i get is a white square. Its probably something stupid that i'm doing wrong. Just unsure what it could be?

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• The final set of SQLBits videos has been uploaded

  - by simonsabin

  The final set of SQLbits videos has been uploaded to the site. You can either watch online or download them. Some highlights of sessions that have been uploaded are Lies, Damned Lies And Statistics. Making The Most Out of SQL Server Statistics attend this session to understand exactly how the optimiser decides on its plans SSIS Dataflow Performance tuning Need to eek out a bit more oomph from your dataflows. This session might be of some use. TSQL Techniques – Why and how to tune a routine an overview...(read more)

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• Make the Web Fast: Automagic site optimization with mod_pagespeed 1.0!

  Make the Web Fast: Automagic site optimization with mod_pagespeed 1.0! Ask and vote for questions at: bit.ly mod_pagespeed is an open-source Apache module that automatically optimizes web pages and resources on them: images, CSS, JavaScript, and much more. In this episode, we'll catch up with Joshua Marantz, the tech lead of the project at Google and talk about the history of mod_pagespeed, its fast growing adoption (130K+ sites!), technical architecture and how it works under the hood. Finally, we'll talk about the upcoming 1.0 release milestone for the project. If you're curious about mod_pagespeed, then this is definitely the show you won't want to miss! From: GoogleDevelopers Views: 0 0 ratings Time: 00:00 More in Science & Technology

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• Is a yobibit really a meaningful unit? [closed]

  - by Joe

  Wikipedia helpfully explains: The yobibit is a multiple of the bit, a unit of digital information storage, prefixed by the standards-based multiplier yobi (symbol Yi), a binary prefix meaning 2^80. The unit symbol of the yobibit is Yibit or Yib.1[2] 1 yobibit = 2^80 bits = 1208925819614629174706176 bits = 1024 zebibits[3] The zebi and yobi prefixes were originally not part of the system of binary prefixes, but were added by the International Electrotechnical Commission in August 2005.[4] Now, what in the world actually takes up 1,208,925,819,614,629,174,706,176 bits? The information content of the known universe? I guess this is forward thinking -- maybe astrophyics or nanotech, or even DNA analysis really will require these orders of magnitude. How far off do you think all this is? Are these really meaningful units?

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• Beginner help: where to begin [closed]

  - by shad

  I want to learn how to program. A main stream programming language such as Java, C++/C# is my primary target. Currently, I am a high school student planning to take programming, Digital electronics courses next semester. My biggest problem is that I do not know where to start and I have no one to consult with. Should I take a course at my local community college this summer? Get some books or try learning from some internet websites? What would be the best option a book or website? note that this is no longer my words, but rather ChrisF's because he decided to reword the question a bit (bad) and spaced it out better (good).

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• How to achieve excellence in iOS Development? [on hold]

  - by Ashish Pisey

  I have been developing iOS apps for six months now and every day i find something new and exciting to learn. i feel blessed with apple docs and 3rd party APIs.I have four apps on the App Store.i have tried almost all the basic core features of iOS except core-data. MY recent interests are dynamic UI,physics(sprite kit) and social apps.As i feel lost in vast pool of knowledge,i would like to know from you expert iOS developers, what particular features should i concentrate on for the future? should i try opengl-es for 3d gaming for 64 bit processors or stick to basic 2d physics gaming for some time or the evergreen social apps category ? appreciate your help, thanx

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• Why Gsettings isn't enough to reset my nautilus settings?

  - by berdario

  I'm trying to narrow down a bug (to eventually report it or give up if it'll turn out that resetting a simple setting will be enough to get rid of it) I noticed that with a brand new user the bug doesn't pop up so I tried to reset the config of my user's nautilus I renamed .config/nautilus I renamed .nautilus2 (strange name... why the 2?) and I did a gsettings reset-recursively org.gnome.nautilus strangely enough, it didn't work: I previously set up to use my home as the desktop folder, and now the key has correctly been resetted $gsettings get org.gnome.nautilus.preferences desktop-is-home-dir false and yet on my desktop I see the contents of my home folder (meaning that the settings have not been resetted) I know that with the transition to gtk3 there've been lots of changes (before I should've used gconf... but now there's dconf and gsettings), so there're quite a bit of question about nautilus... but these unfortunately now seem to be outdated

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• Can I Use A Canonical Tag Instead of a Redirect for Updated Content?

  - by Ewan Heming

  I have some old articles on my blog that get quite a bit of traffic, but are very outdated. I want to remove them from Google's index using the noindex tag, but I'm not sure what the best approach will be to send the same traffic to my new article on the subject without using a redirect (as I want to keep them in my blog archives). I was intending to just put a link at the top of the article pointing to the new one, but was wondering if it was appropriate to use a canonical tag instead; the new article is on the same subject but doesn't contain the same content, so isn't really a copy.

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• Starcraft 2 not displaying map in game

  - by AntiFX

  I installed Starcraft II wings of liberty via playonlinux, it installed fine, it starts up fine, but when I go into a game the map does not show, it is just black, but all my buildings/units/mineral line shows up, but everything else is black, also all the abilities do not have any graphics, and I can not see my player portrait in the menus. I am on a 32 bit version of ubuntu 12.04 with wine 1.5.10 I think it is probably a missing package I need to install...but I have no clue which one it would be, or if it is even that. Can anyone help? Thank you in advance!

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• Getting Started Integrating Windows Azure with Microsoft Office Solutions

  Nearly everyone starts learning anything new by beginning with something simple and adding incremental knowledge. One of the biggest challenges with Windows Azure and SQL Azure is that the simple beginning seems a bit more elusive. The "Hello World" application in the new world of cloud computing, while not overly complex in concept, requires a good measure of preparation and configuration. The following content is designed to aid you in getting started with Windows Azure and SQL Azure in the spirit...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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• How to select which account is logged in at system startup, or none?

  - by hippietrail

  I'm helping out some friends with a tiny hospitality business where one desktop computer has some files used by the business in one account "hotel" but it's mostly used by guests for browsing the web in another account "guest". It's low security, we're not worried about hacking or anything. But we don't want people accidentally moving our files or anything either. But the system always boots into the "hotel" account without asking for a password, even though the account has a password. We want it to boot into the "guest" account. I know a bit about computers generally and Linux but not much about Ubuntu and the ever-changing graphical environment the Linuxes are going through these days. We've looked through the obvious settings/preferences/options and I've done some Googling. I know this should be obvious easy stuff but I can't find it. (We're running 10.04 LTS on a generic aging Intel box.)

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• Do I need a Point and a Vector object? Or just using a Vector object to represent a Point is ok?

  - by JCM

  Structuring the components of an engine that I am developing along with a friend (learning purposes), I came to this doubt. Initially we had a Point constructor, like the following: var Point = function( x, y ) { this.x = x; this.y = y; }; But them we started to add some Vector math to it, and them decided to rename it to Vector2d. But now, some methods are a bit confusing (at least in my opinion), such as the following, which is used to make a line: //before the renaming of Point to Vector2, the parameters were startingPoint and endingPoint Geometry.Line = function( startingVector, endingVector ) { //... }; I should make a specific constructor for the Point object, or there are no problems in defining a point as a vector? I know a vector have magnitude and direction, but I see so many people using a vector to just represent the position of an object.

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• New Window Via JavaScript Clears Parent

  - by Bunch

  This is not a new item at all but I came across it recently. For an app I had been using some JavaScript like: javascript:window.open(someurl.aspx here) to open a new window via a button. That bit of code had been working great in several other apps. Then in one app that same code decided to open the new window correctly while clearing the parent of everything but [object]. The fix ended up being simple, change the javascript to: javascript:void(window.open(someurl.aspx here); Then it worked like I thought it should. Tags: ASP.Net, JavaScript

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• Anyone know about AppDynamics? Does Microsoft already have something similiar? Event viewer? Im confused

  - by punkouter

  We have a big collection of java (80%) and .Net (20%) apps.. And the people in charge want a way to monitor the applications somehow. So they told me they are interested in AppDynamics? I have spent a bit looking into it but I still don't get it. Can someone tell me what its about ? From my understanding it seems like you would someone inject the AppDynamics API in your code to tell about differnt events that occur? So sounds like Event Viewer ? I am on the .NET side of this and seems to me we can just write data to a log and report off of that data.. I don't get what the additional complexity of using'AppDynamics' does. Maybe it is overkill ??

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• How can I use a .html file as desktop background/wallpaper?

  - by dudealfred

  I have one of those underpowered netbooks with Lubuntu. I also have an iPod Touch. I'd like the best of both worlds. So I would like to create an active html wallpaper with beautiful little squared icons to launch my webapps through Chromium/Firefox. I've read a bit, but it looks like there isn't really anything that would allow for that. Why? Does anyone have any other alternatives (apart from buying an iPad)? :)

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• Excel duration converts to date

  - by Malcolm Anderson

  I'm working on an Excel 2010 spreadsheet and I'm trying to put in durations for some tasks I want to schedule.The interesting thing is that up until a few minutes ago, I couldn't do it.I was entering in "47:00" and excel was (and still is) converting it to "1/1/1900 23:00:00"In my mind, I want the value to be 47 minutes, but for the life of me I cannot find a fix for this behavior.Here's the weirdest thing, I haven't had this problem in the past.  Usually I put in times, add them up and they work like magic.  Put in 18 entries of 20 minutes each, total them and excel will usually tell me that it's a total of 6 hours.No problem.Today, problem.Here's the weird bit:As I was writing this post, I got it to work.By formatting the column as custom "[hh]:mm" and summing the columns, I can get total times.But the times are still being formatted into dates if I look at the underlying data.  Bottom line, if you need to calculate durations, you can, but don't look too closely at what is happening underneath the covers.

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• virt-manager not installing

  - by Registered User

  I am trying to install virt-manager on 11.10 on 64 bit machine sudo aptitude install virt-manager here is where it stopped the install Processing triggers for python-support ... Errors were encountered while processing: libvirt-bin E: Sub-process /usr/bin/dpkg returned an error code (1) A package failed to install. Trying to recover: Setting up libvirt-bin (0.9.2-4ubuntu15) ... useradd: cannot lock /etc/passwd; try again later. adduser: `/usr/sbin/useradd -d /var/lib/libvirt -g kvm -s /bin/false -u 118 libvirt-qemu' returned error code 1. Exiting. dpkg: error processing libvirt-bin (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: libvirt-bin What should be done in this case to resolve it?

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• W520 External monitor setup with Ubuntu 12.10

  - by user108372

  I just installed a fresh Ubuntu 12.10 64-Bit Desktop on my Lenovo W520. It looks like there are a lot of challenges around making it work with out of the box Nouveau drivers or propriety Nvidia drivers or Intel GPU. I looked at couple of notes on how to make it work with Bumblebee with Optimus Nvidia. None of them seems to work for 12.10. Anybody has a solid answer on this? It seems like a lot of people are suffering from this. Here is my xrandr output. Let me know if you need any additional information. Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 LVDS1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 344mm x 193mm 1920x1080 60.0*+ 59.9 50.0 1680x1050 60.0 59.9 1600x1024 60.2 1400x1050 60.0 1280x1024 60.0 1440x900 59.9 1280x960 60.0 1360x768 59.8 60.0 1152x864 60.0 1024x768 60.0 800x600 60.3 56.2 640x480 59.9 VGA1 disconnected (normal left inverted right x axis y axis) Thanks, Sef

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• How To Sideload Modern Apps on Windows 8

  - by Chris Hoffman

  The average Windows 8 user can only download apps that Microsoft has approved from the Windows Store. Windows 8 offers two ways to sideload unapproved apps, which are intended for developers and businesses with internal apps. These methods cannot be used by the average geek to install unapproved apps from the web. Windows 8’s new interface takes the Apple iOS approach of forbidding unapproved software, not the Android approach of allowing all users to enable sideloading. Note: This only applies to Modern apps in the new Windows 8 interface, not on the desktop. Windows desktop applications can be installed normally. However, you can’t install any desktop applications on devices running Windows RT. Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows

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