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• Disabling eth0 Module on a Macbook Aluminum

  - by user115488

  The Ubuntu page for my device states the following at the bottom (Known Issues) PowerTOP reports that the module for the 10/100/1000 interface wakes the processor 100+x/sec, accounting for 50% of wakeups on an idle system. This dramatically shortens battery life. One potential solution is to unload this module if you only use wireless. I only use wireless, but I could not find instructions to "unload the module". I have a feeling if I try something related to this, but not the same, battery life will not improve and my eth0 won't work. Anyone have a good guide on this?

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• How do I compile ndiswrapper?

  - by Aphrodite

  I have been working for a good 2 days now trying every forum post i could find when it comes to ndiswrapper. I can get it installed but get the error module ndiswrapper not found keeps coming up. In my travels, this is a bug in the installer and I have to build it from source. I have no clue how that works... Is there anyone out there that can give me an idea of where to start? I don't even know where to begin... Thank you in advance!!!

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• Ubuntu 12.10 64 bit Slow

  - by Patrick Skiba

  I am new to linux and was wondering why launching applications is so slow. I've tried both Ubuntu 12.10 64 bit and Ubuntu 12.04 LTS 64 bit Computer Specs: Toshiba Satellite p755 CPU: Intel core i7-2670QM @2.20GHz Ram: 8 GB Using integrated intel hd 3000 graphics When I install the first thing I do is update, which takes about an hour or so. I would assume I'd be good after that, but when launching things like the firefox, system settings, thunderbird it takes a much much longer time than on Windows 7. Please help me.

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• Criteria for a language to be considered "object oriented"

  - by nist

  I had a discussion about OO programming today and by browsing the internet I found a lot of different specifications for object oriented languages. What are the requirements for a language to be object oriented? For myself an object oriented language must have classes, inheritance and encapsulation. Is C an object oriented language just because you can use structs and program with an object oriented design? Why/ why not? Are there any good sites/articles about this? And please, no Wikipedia links because I've already been there.

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• camera movement along with model

  - by noddy

  I am making a game in which a cube travels along a maze with the motive of crossing the maze safely. I have two problems in this. The cube needs to have a smooth movement like it is traveling on a frictionless surface. So could someone help me achieve this. I need to have this done in a event callback function I need to move the camera along with the cube. So could someone advice me a good tutorial about camera positions along with an object?

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• What Shading/Rendering techniques are being used in this image?

  - by Rhakiras

  My previous question wasn't clear enough. From a rendering point of view what kind of techniques are used in this image as I would like to apply a similar style (I'm using OpenGL if that matters): http://alexcpeterson.com/ My specific questions are: How is that sun glare made? How does the planet look "cartoon" like? How does the space around the planet look warped/misted? How does the water look that good? I'm a beginner so any information/keywords on each question would be helpful so I can go off and learn more. Thanks

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• ubuntu 14.04 slow

  - by TURN A

  so i upgraded to ubuntu 14.04 from 12.04 with a usb but i have internet ,my computer is really slow at 1024x768 definition ,everything works super slow ,windows closing and opening and streaming videos ,everything ive used so far.but it works fine at 800x600 definition ,i want it to be fine at the higher definition ,how do i make it run well at 1024x768 ? in additional drivers nothing shows ,and my computer mirrors by default for some reason ,i tried stopping it from mirroring but most buttons dont want to work and weird glitches happen ,the system doesnt work well when not mirroring , i dont care if it mirrors or not i just want good performance .thank you in advance for any answers !! here are the computer specs Processor 1.8 GHz 8032 RAM 2 GB DDR3 Memory Speed 1066 MHz Hard Drive 32 GB Graphics Coprocessor Graphics Media Accelerator HD Wireless Type 802.11B, 802.11G, 802.11n Number of USB 2.0 Ports 4 Expand Other Technical Details Brand Name Asus Item model number EB1030-B003L Hardware Platform Linux Operating System Ubuntu Item Weight 1.5 pounds Item Dimensions L x W x H 1.14 x 6.70 x 8.60 inches Color Black Processor Brand Intel Processor Count 1 Computer Memory Type DDR3 SDRAM Flash Memory Size 32 Hard Drive Interface Solid State Optical Drive Type No

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• Browser game in JSP? [closed]

  - by Constant

  I want to develop a browser-game (like ogame, travian) and I have some doubts in which technologies should I use. I was thinking in a server-side in JSP,Java and a client-side in HTML (or HTML5 if I learn to give it good use). Do you think my choices are right? I would like to make a board where many players could move simultaneously between tiles or squares. Do you think is possible in JSP or I should start with other language? Any suggestion aprecciated, and apologies for my english. Thank you! Regards!

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• Is it correct to add booleans in order to count the number of true values in a vector?

  - by gerrit

  Is it conceptually correct to sum a vector of booleans? From a mathematical point of view, I would argue it's not: True + True != 2. But it's quite practical to do so still! Example using the vectorised Python library numpy: In [1]: X = rand(10) In [2]: large = X>0.6 In [3]: large.dtype Out[3]: dtype('bool') In [4]: large.sum() Out[4]: 7 I don't like it, but it's very practical. Is this a good practice? Update: the aim is to count the number of true values in a vector.

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• System Requirement Checking

  - by gl3829

  I am working on a game and want to strengthen its requirement checking to ensure that it can run successfully. Therefore, I am looking for information on what is useful to check before starting the game. As a simple example, Why check for a specific amount of memory? Should I as a game developer ensure a minimum amount of memory? I feel this information is usually skipped in many books and resources but is critical to be able to deliver a game that will run on many machines. I would appreciate if you answered with what you check in the system, why you check it and if you have a good resource about it, please include. Just to be a bit more specific, I'm developing in Windows.

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• How to run/test JavaScript? [closed]

  - by user702

  I'm reading David Flanagan's "JavaScript: The Definitive Guide, 6th ed". It only actually tells users how to run JS code on page 311, where users are told of the following solutions: "Client-side JavaScript code is embedded within HTML documents in four ways: Inline, between a pair of <script> and </script> tags From an external file specified by the src attribute in a <script> tag In an HTML event handler attribute, such as onclick or onmouseover In a URL that uses the special javascript: protocol." I was wondering what professional JS developers use to write and test their code: Do they use a good text editor with syntax high-lighting + autocompletion, hit F5 in the browser to reload the page every time they make a change, and use some add-on in the browser to investigate errors? Or are there full-fledged IDE's similar to MS VisualStudio for non-web languages?

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• Java graphic objects as in flashgames

  - by Ryu Kajiya

  How is it possible (with the standard Java2D engine) to use small sprites like graphic objects? For those who don't know what I mean, in all those Flash-games like on Facebook they put small sprites on the screen which react to mouse-over and clicks. I tried to do the same in Java but can't find a good method. Swing components always spread over the whole bitmap, but I only want to get a reaction from the object when the mouse is over a pixel that's not transparent. So basically checking every time if the object below the mouse contains a non-transparent pixel (which i believe could be pretty intense in a gameloop or repaint loop). I have no idea how to implement such a thing efficiently.

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• RewriteRule for URLs with spaces

  - by Robert Cailliau

  My site's pages are in multiple languages whereby each language version shares its media (images) with the other language versions. I place all versions and the media in a single directory with the same name. E.g. pages mypage-en.html, mypage-fr.html etc. will sit in directory mypage. The directory path suffices to reference a page: h t t p : //....../mypage/ is good enough, there is no need for h t t p : //....../mypage/mypage-en/html A rewrite with RewriteRule ^(.*)/([a-zA-Z0-9]+)/?$ /$1/$2/$2-en.html lets me use the shorter form. But what if the name mypage contains spaces (which some do) ? I want h t t p : //....../my page/ to lead to h t t p : //....../my page/my page.html Using RewriteRule ^(.*)/([a-zA-Z0-9|\s]+)/?$ /$1/$2/$2-en.html did not work. Any hints welcome. (please do not ask me why I want to do this, nor tell me I should not use spaces in file names)

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• NASCIO Award for NetBeans Platform Legislative Software

  - by Geertjan

  Two days ago, 23 October 2012, the Kansas Legislative Information System and Services (KLISS) was awarded the 2012 NASCIO Award for Open Government at the NASCIO annual State IT Recognition awards. KLISS is developed by Propylon in partnership with the executive and legislative branches of the Kansas Government involving a complete overhaul of the Legislature's IT systems. This video gives an overview of the system: In other good news, Propylon has recently announced that it will work with the Indiana Legislative Services Agency to implement a complete Legislative Enterprise Architecture. For details on the NetBeans Platform angle to all this, in addition to watching the movie above, see Legislative Software on NetBeans. And note that Java developers with NetBeans Platform experience are welcome to apply to work at Propylon. And congratulations to the Propylon team!

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• How to interpret Google's "Avg. Page Load Time"?

  - by hawbsl

  Is there any industry rule of thumb for what's considered an unacceptable load time v. an OK one v. a blistering fast one? We're just reviewing some Google Analytics data and getting 0.74 Avg. Page Load Time reported. I guess that's OK. However it would be good if some meatier comparison data were available, or a blog post, or somewhere where there's some analysis of what speeds are generally being achieved by various kinds of sites. Any useful links to help someone interpret these speeds? If you Google it you just get a lot of results dealing with how to improve your speed. We're not at that stage yet.

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• MVVM application architecture, where to put dependency injection configuration class, BusinessLayer and Common interfaces?

  - by gt.guybrush

  Planning my architecture for an MVVM application I come to this: MyApp.UI View MyApp.BusinessLayer ViewModel MyApp.DataAccessLayer RepositoryImplEF MyApp.DomainLayer DomainObject RepositoryInterface MyApp.Common Logging Security Utility (contains some reflection method used by many levels) CustomException MyApp.UnitTest I was inspired by Domain-driven-desing, test-driven-development and onion architecture but not sure to have done all well. I am not sure of a couple of things: where to put dependency injection configuration class? In the common project? where to put BusinessLayer interfaces? in Domain layer? where to put Common interfaces? in Domain layer? But Common in referenced from domain (for some reflection utilities and for DI if the response to 1. is yes) and circular reference isn't good

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• Hello Again, San Francisco

  - by Geertjan

  From the moment I got to the airport in Amsterdam, I've been bumping into JavaOne pilgrims today. Finally got to my hotel, after a pretty good flight (and KLM provides great meals, which helps a lot), and a rather long wait at customs (serves me right for getting seat 66C in a plane with 68 rows). And, best of all, on Twitter I've been seeing a few remarks around the Duke's Choice Awards for this year. The references all point to the September - October issue of the Java Magazine, where page 24 shows the following: So, from page 24 onwards, you can read all about the above applications. What's especially cool is that three of the above are applications created on top of the NetBeans Platform! That's AgroSense (farm management software), MICE (NATO system for defense and battle-space operations), and Level One Registration Tool (UN Refugee Agency sofware for managing refugees). Congratulations to all the winners, looking forward to learning more about them all during the coming days here at the conference.

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• How to teach your users/customers to send better error descriptions

  - by ckeller

  I often have to deal with customers or users which are reporting errors in applications. Most of the time their content is something useless as ERROR!!! x does not work without much more information. For resolving the issue I have to request every single detail of them, which often is more time consuming than fixing the issue itself. Other send information in formats which are not ideal, like screenshots (of data records, not of errors) although they could send a link (we have access to the systems) and so on. How do you tell your users/customers to describe the problems with more details so that the whole process could be easier for both sides? edit This question is more about the social skills, than how to achieve programmatic collection of logs and error information. I'm aware of the fact that this should be part of good software design.

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• Using T[1] instead of T for functions overloaded for T(&)[N]

  - by Abyx

  The asio::buffer function has (void*, size_t) and (PodType(&)[N]) overloads. I didn't want to write ugly C-style (&x, sizeof(x)) code, so I wrote this: SomePacket packet[1]; // SomePacket is POD read(socket, asio::buffer(packet)); foo = packet->foo; But that packet-> looks kinda weird - the packet is an array after all. (And packet[0]. doesn't look better.) Now, I think if it was a good idea to write such code. Maybe I should stick to unsafe C-style code with void* and sizeof? Upd: here is another example, for writing a packet: SomePacket packet[1]; // SomePacket is POD packet->id = SomePacket::ID; packet->foo = foo; write(socket, asio::buffer(packet));

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• Rejoining two partitions

  - by Alex

  I was courious about Ubuntu so I decided I would give it a chance, therefore I installed it on a parition on my harddrive. Now a couple of months later I haven't used windows once so i decided to go with ubuntu only. I deleted my windows partition with GParted and thought that it was all good. BUT the now formated diskspace that used to be home to windows is now only a formated partition. How do I connect it to the partition where my ubuntu installation lays iow go back to having a non parted hard drive?

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• Does anyone use 12.04 with HD 6950?

  - by Midori

  Back when I first tried to switch from Windows to Ubuntu (6-7 months ago) I had several graphics related problems. The VGA was overheating, graphic glitches, video playing issues, slow/choppy window movements etc. After 2-3 reinstalls, hours of playing with different drivers/settings I decided to return to Windows :\ Now I want to give it another shot. But before I start to format, partitioning, backup and other time consuming stuff I wanted to ask if anyone using the 12.04 with HD 6950. Can I utilize the full potential of it, or the drivers are still not good enough? I know that Linux isn't meant to play games in the first place, but the games I playing (SC2, BLC, HoN, DotA 2) are working with wine as far as I know (or aren't?) and I can't find any reason not to switch from Windows if I can utilize the full potential of my config in Ubuntu. So anyone who got experiences with this VGA in Ubuntu please reply. Thanks in advance :)

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• Bad sound quality and headphones not working

  - by wifi

  Using Ubuntu 10.10, on a HP Pavilion t3019.es, which has a Realtek ALC880 soundcard. It has 6 rear jack outputs, plus digital audio input and output, plus 3 front jacks (mic, headphones and a blue one which i don't know what's for). The sound on my computer is very low, and when i raise the volume up to 50%, it starts sounding distorted, crackling. Also, the headphones don't work when i plug them (it just keeps on playing through the speakers). I tried to comment the "/etc/modprobe.d/alsa-base.conf" file according to the soundcard and jacks in my computer, but none of the lines added worked (naturally, didn't added them at once). I found out that adding "options snd-hda-intel model=generic" to it made the sound better, but it's not as good as in Windows yet. Any ideas? Other than setting the PCM value, didn't work for me. Thanks.

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• Which version of OpenGL for Android?

  - by akadouri

  I've been trying to learn OpenGL ES 2.0 to create a simple 2D game. I bought a book on android development, but after seeing that the author uses his own SDK that implements OpenGL ES 1.0 I decided to just use online tutorials. I've been so lost trying to find out what to use. The Matrices and shaders of 2.0 confuse me and I can't find any tutorial that just explains how to texture map a simple 2D image. Basically: OpenGL ES 1.x or 2.0 for simple 2D with little OpenGL experience If 2.0 Any good tutorials for 2.0, I've found so many for 1.0

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• Shared memory multiprocesses

  - by poly

  I'm building an multi processes application and I need to save session ID, the sessions ID is 32 bit, and of course it can't be used twice in its lifetime, I'm currently using DB that saves all the ID in a table, and I do the following, ID table is (int key, char used(1)) //1 is used, 0 is not 1. lock table 2. get one key for one sessions 3. update used field in it to used 4. unlock After the session is finished the process use below to free key, 1. lock table 2. update used field in it to not used 4. unlock I'm really wondering whether this is a good/fast implementation. and please note it's multi processes application.

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• Which are the options available for PHP IDEs for windows

  - by dbz_a

  Hi, I am new to PHP (Have good j2EE and ASP .net experience) and now want to kick start developing a simple website (A database connection and simple inserts is the max technical stuff i plan right now). I have signed up at zymic for a free hosting (MySql included). Now please suggest me: the available IDEs for developing on PHP on windows OS and any beginner level resources that you have come across, for a .net/java guy which may help me to quickly figure out the differences would you advice me to go for frameworks like joomla etc as a beginner? or is it better i start exploring these after im familiar with PHP? Thanks in advance, Abhi

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