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• Hide GRUB2 menu UNLESS you hold down Shift key: how to make this happen?

  - by Shasteriskt

  I have a Ubuntu - Windows 7 dual-boot set-up, and I would like to have it that my laptop would boot up Windows 7 unless I press down the Shift key right after boot and bring up the Grub2 menu from which I can choose Ubuntu. I researched on Grub2 and options for etc/default/grub and I have tried playing around with combinations with the GRUB_TIMEOUT and GRUB_HIDDEN_TIMEOUT values, but to no avail. I tried setting the GRUB_HIDDEN_TIMEOUT higher than the GRUB_TIMEOUT thinking that both countdown start simultaneously, but no - GRUB_TIMEOUT only starts after the other is done. Is this behavior achievable? If so, how?

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• Templates and Cross-domain client-side binding with RadGrid for ASP.NET AJAX

  Or yet another Twitter grid Yesterday, while I was playing around with this example of our MVC Grid, I thought that the RadGrid for ASP.NET AJAX deserves one too. What I like about this sample scenario is that it gives a perfect opportunity to demonstrate both how to do client cross-site request (as we have received a few questions through our support channels) and to check the future ASP.NET AJAX/jQuery client-side templates prototype.     A wiser guy once said a code sample is worth more than a 1000 words ;) That is why Ill keep it short and let you check the sample project.   Enjoy.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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• Thread count in Java game

  - by Taylor Hill

  I'm just curious as to what a reasonable number of threads is for a simple 2D mmo in Java. Is it reasonable to have two threads per connection, one for the input stream and one for the output stream? The reason I ask is because I use a blocking method on the input stream, and a workaround seems unnecessarily complex if I were to try to get around it without adding threads. This is mostly for my own edification; I don't expect to have 5 million people playing it ever, or even 5, but I'm wondering what a good scalable solution is, and if this is reasonable for a small server (<30 connections).

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• Kindle for PC via Wine

  - by Mollikins

  I've been checking out all the free books on Amazon and I really want to get the Kindle PC program running on my computer so I can download, read, and manage my e-books. I realize that Calibre can be used to manage e-books and I do have that downloaded. However, Amazon won't let me download ebooks unless my PC is registered in their little Kindle program and I'd like to just keep things streamlined by playing by the rules for once. I've viewed so many tutorials and advice for setting it up. I have Wine, I have Kindle for PC, I set it to Win98, all of that. However, when I try to open KindlePC from the Wine menu or from the desktop icon, nothing happens. No error messages, nothing. I don't know what might be wrong. Please let me know if you have any experience with this and any suggestions!

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• how to install drivers for intel corporation mobile gm965 gl960 integrated graphics controller?

  - by SanraS

  I have a "inspiron 1525"and am running 11.10 version of Ubuntu, I noticed that when scrolling I can see a lag and also when playing back HD content it will freeze the video for a few seconds and then resume, none of those happened on winVista when I had it installed, now I do prefer Ubuntu and would like to fix this rather than go back to windows. the chip is an "intel corporation mobile gm965 gl960 integrated graphics controller" as stated by "lspci" I don't know much about dealing with installing drivers that's why I'm asking for help and would like to be commands that I can put on terminal, rather than go here and then there and then look for this or that. I think I'll get lost in the middle but terminal I can follow. thanks for your help.

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• Box2Dweb very slow on node.js

  - by Peteris

  I'm using Box2Dweb on node.js. I have a rotated box object that I apply an impulse to move around. The timestep is set at 50ms, however, it bumps up to 100ms and even 200ms as soon as I add any more edges or boxes. Here are the edges I would like to use as bounds around the playing area: // Computing the corners var upLeft = new b2Vec2(0, 0), lowLeft = new b2Vec2(0, height), lowRight = new b2Vec2(width, height), upRight = new b2Vec2(width, 0) // Edges bounding the visible game area var edgeFixDef = new b2FixtureDef edgeFixDef.friction = 0.5 edgeFixDef.restitution = 0.2 edgeFixDef.shape = new b2PolygonShape var edgeBodyDef = new b2BodyDef; edgeBodyDef.type = b2Body.b2_staticBody edgeFixDef.shape.SetAsEdge(upLeft, lowLeft) world.CreateBody(edgeBodyDef).CreateFixture(edgeFixDef) edgeFixDef.shape.SetAsEdge(lowLeft, lowRight) world.CreateBody(edgeBodyDef).CreateFixture(edgeFixDef) edgeFixDef.shape.SetAsEdge(lowRight, upRight) world.CreateBody(edgeBodyDef).CreateFixture(edgeFixDef) edgeFixDef.shape.SetAsEdge(upRight, upLeft) world.CreateBody(edgeBodyDef).CreateFixture(edgeFixDef) Can box2d really become this slow for even two bodies or is there some pitfall? It would be very surprising given all the demos which successfully use tens of objects.

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• Trouble installing 12.04 from cd, blank screen with cursor

  - by Master Morality

  I should preface this with saying that this is not my first rodeo. I started playing with Linux in 1999 (Red Hat) and I'm currently typing this on a ThinkPad running 12.04... When I put in the live cd, I boots, and I can get to the option menu to decide whether to install/run etc, but at any point beyond that I get only a single caret. I can type stuff in, but it goes no where. I've tried the usual stuff like running with nomodeset (thinking it was the intel HD400 graphics, but it is integrated graphics...) here is the setup: ASUS p8z77 pro (with the Atheros AR9485 wifi supposedly, but I'm not that far yet) i7 3370k 8gig X 2 G.Skill Crucial M4 (256 gig) LG Super-multi DVD re-writer no video card UPDATE: I though may be it was a bad image on the CD, so I downloaded another iso, and used a USB disk. now it boots to a blank screen. I can see the "press any key to get options" screen, but after that, it just goes to a blank screen.

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• Is it possible to programmatically prevent a game from pausing when its window loses focus?

  - by user836045

  I'm playing Skyrim in windowed mode and I am trying to create a bot for this game for personal use. I would like to have the bot play the game in the background, while I do other things, the only problem is that the game window pauses when it loses focus. Is there a way to make the Skyrim process think that it still has the focus, so it continues to run while I do something else on another window? I'm not a windows programming expert but would this be possible if I could somehow intercept the message that says unfocused or minimized to the process, and thus let the process think its still focused? I think Skyrim uses directx, so is it possible to come up with a solution from that end?

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• How long till HTML5 canvas becomes a viable game development platform?

  - by Shouvik

  So I have been working on web application. So invariably what it boils down to is making simple games which were previously based on flash or openGL. Now I know apple was moving away from flash because its proprietary unlike their stance that its got "pathetic performance"! Not true, try playing a canvas game, I can assure you at any point of time (including when its idle) it will use up a fair bit of processing power just to redraw the UI. Now I do understand that this is my fault because when the game is not active I should not be redrawing the canvas, but honestly its a lot of work and I suppose there should be libraries which should be able to assist me with that! So, how much will it be before I see a decent canvas library which handles these "tiny" issues for me? I can't honestly expect Steve Jobs to be doing anything more for HTML5! I someone knows of a good library, I am all ears...! :) PS: I use mootools and am presently using Mootools Canvas Library.

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• HP dv6-2119tx cant find the built in tv tuner?? Ubuntu 12.10

  - by Mat

  Installed Ubuntu 12.10 yesterday and I've been playing around trying to get all the drivers for my dv6. I have taken care of the the graphics card and the sound card which to be honest is not the greatest drivers I have found. Specs are Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz with nvidia gt230 My problem atm is the tv tuner card! Ive searched everywhere but i cant even find something to start on. I guess I am still clueless but I really dont know what to do??? I really dont want windows anymore so if anyone could guide me Id really appreciate it. Thanks...

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• Can I run alsa and pulse side by side ? I think there is some problem with the alsa ! My ubunu login sound and alert sound are not working?

  - by Curious Apprentice

  I think I have Alsa driver installed. Pulse not working may be I dont have it installed. Not sure If I can run Pulse and Alsa. I had to configure each application prior to work which use pulse.(SMplayer by default select pulse. I had to change that) I know a little about these. So if the question is stupid then please help me. Smplayer always showing a cross(x) icon in front of speaker icon as it is disabled, though Im playing sound.

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• Reasons to disable game save during combat (e.g. Mass Effect 2)

  - by Steve V.

  So I've been playing Mass Effect 2 (PC) and one of the things I've noticed is that you can only save your game when you're not engaged in combat. As soon as the first enemy shows up on your radar, the save button is disabled. Once combat is over, save functionality reappears. It seems reasonable to assume that Mass Effect 2 is a state machine, and therefore, the internal state of the program at any moment can be captured and reloaded later. This is basically a solved problem - games have been designed this way since the Half-Life era. It also seems reasonable to assume that BioWare knew what they were doing when they made the decision not to follow this model - it's a tried and true system; BioWare wouldn't have done it the way they did without some good reason. What reasons are there to disable game save functionality during combat?

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• adding pls to rhythmbox

  - by tomasz74

  I try to add .pls radio station to rhythmbox. I download the file and I click musicimport file but nothing happen. I added one station before and it works fine but now it simply does not work. Also when I try to get from the file, click on open with rhythmbox I have the error: Couldn't start playback Problem occurred without error being set. This is a bug in Rhythmbox or GStreamer. I have all medibuntu installed and I have one radio station already playing. I don't know how to proceed from now and what should I check if there is something to fix. Anyone get similar problem? (Ubuntu 12.04 64-bit Gnome3)

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• How to play a fixed frequency sound using Python

  - by user98415

  I have tried a number of ways of playing a fixed frequency sound (e.g. 1000Hz) and nothing works. I have downloaded "beep" and that makes no noise. I tried interfacing to pyao, and that had no effect. I tried interfacing to audiere, and get a runtime error indicating the library could not be found, despite installing it from the software centre. Any guidance for installation of appropriate libraries and relevant code would be most appreciated. I cannot generate .mp3/ .wav files for this, but need to generate the tones at run time. Many thanks for you

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• Creating several instances of the same object, and selecting only one

  - by hustlerinc

  I'm playing around with making a puzzle game, haven't done that much before I run into my first problem. Basically, I want to create a certain amount of the same object/function. But without hardcoding the different instances. I think maybe an array is a good idea? and then a for loop to push the objects in? And then I need to be able to select one of these objects by clicking on it, how would I do that? How do I know which ball in the array was clicked? A loop again? I made a jsFiddle example (you need to click the orange ball to select, then you can move it around by clicking the canvas). This is what I want to do, but with more balls. How would you solve this? Help appreciated.

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• Why can't I access hw:1,0 until gstreamer-properties is run once?

  - by Shadd

  Not necessarily an Ubuntu-specific question but I wasn't sure where else to ask. I have an AverMedia DVD EZMaker 7 which plugs into USB and works well on Ubuntu 12.04. I downloaded and installed the official drivers without error. However, when I try: gst-launch alsasrc device="hw:1,0" ! alsasink device="hw:0,0" it tells me: Setting pipeline to PAUSED ... Pipeline is live and does not need PREROLL ... Setting pipeline to PLAYING ... New clock: GstAudioSrcClock which is the normal output, however there is no audible sound. Trying the command again doesn't help. If I run gstreamer-properties and close it right away (don't need to touch any controls), THEN the gst-launch command works. If I unplug the device and plug it back in or restart the computer, I have to run gstreamer-properties again. What is gstreamer-properties doing that enables the audio?

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• Should a complete newbie use mongoose js? [on hold]

  - by Squirrl

  I drank from the koolaid and jumped aboard the node.js bandwagon even though I barely know javascript. That said, I have the opportunity to work with one of 2 templates. One is just node, express and mongodb, and the second includes mongoose and jade with the other 3 and is easier for me to understand. Yet I'm concerned that if I begin with mongoose, I'll be too high level and miss some of the fundamentals. Is my concern warranted? Should I work my way up or should I just start playing with all the toys from day one?

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• Java EE 7 support in Eclipse 4.3

  - by arungupta

  Eclipse Kepler (4.3) features 71 different open source projects and over 58 million LOC. One of the main themes of the release is the support for Java EE 7. Kepler specifically added support for the features mentioned below: Create Java EE 7 Eclipse projects or using Maven New facets for JPA 2.1, JSF 2.2, Servlet 3.1, JAX-RS 2.0, EJB 3.2 Schemas and descriptors updated for Java EE 7 standards (web.xml, application.xml, ejb-jar.xml, etc) Tolerance for JPA 2.1 such as features can be used without causing invalidation and content assist for UI (JPA 2.1) Support for NamedStoredProcedureQuery (JPA 2.1) Schema generation configuration in persistence.xml (JPA 2.1) Updates to persistence.xml editor with the new JPA 2.1 properties Existing features support EE7 (Web Page Editor, Palette, EL content assist, annotations, JSF tags, Facelets, etc) Code generation wizards tolerant of EE7 (New EJB, Servlet, JSP, etc.) A comprehensive list of features added in this release is available in Web Tools Platform 3.5 - New and Noteworthy. Download Eclipse 4.3 and Java EE 7 SDK and start playing with Java EE 7! Oracle Enterprise Pack for Eclipse was released recently that uses Eclipse Kepler RC3 but will be refreshed soon to include the final bits.

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• How to store an iOS game save file in multiple devices? (Without remote servers)

  - by Omega

  I've been developing an iOS game for iPhone. My game saves the progress as a couple of .plist documents in the device. I have come to realize that when I install a game in my iPhone, this same game is installed in my iPad. And then it struck me: how would I manage save files? I mean, I'd like the player to be able to continue playing from where they left no matter what device are they using... without using remote servers. What have you done to address this issue?

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• Where to find current information on quality of released games as software products?

  - by Tom

  As a gamer, one thing I have learned I need to be savvy about is knowing whether SomeBigGame is actually unstable or otherwise problematic as a piece of software (riddled with invasive DRM products, only runs well on a particular video driver version, crashes on non-English-language systems, etc.). I know that game news media can sometimes be relied upon to report on some problems, but I doubt they bother to cover smaller or indie titles. An example: I've started playing Transformice on Kongregate, and I'm considering installing the downloadable client (it is an online multiplayer game). The part of me that cares about data privacy and maintaining a clean-and-healthy PC wants to know whether there is a place I can check to find out more about a title-as-software than "it is not a literal virus." Put another way: where would you not want to see your game receive lots of attention?

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• Ask The Readers: What’s Your Favorite Co-Op Game?

  - by Jason Fitzpatrick

  For many readers, the weather is getting chillier and that means more time indoors. What better time to take a look at the best co-op games around? Jump in and put in a nod for your favorite game and setup. Wallpaper available here. Whether you’re playing DS-to-DS with your spouse, inviting all your buddies over for a whole-house LAN fest, or couch co-op’ing through your favorite RPG, we want to hear all about your favorite games and the ways you play them. Sound off in the comments with your co-op tips and tricks; make sure to check back in on Friday for the What You Said roundup to find some new titles to tide you over until the warm weather comes around again. How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems 7 Ways To Free Up Hard Disk Space On Windows

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• What is the best way of testing Ubuntu?

  - by Jay

  I'm a little confused as to whether I should install Ubuntu on its own partition on my hard drive, use VirtualBox or another virtualization package to install it, or use Wubi to install it directly on top of my current OS (Win 7). I definitely want to learn and use Ubuntu, so this is not just for playing around with it. Also, if I choose to partition, should I partition the hard drive myself or should I let the Ubuntu installation menu do it for me? I understand that I am going to need a main partition, for Ubuntu's core components, and also a swap partition. Then there is the option to add a partition for "home"- I don't understand what combination of these partitioning options I should choose, or whether it is better to partition in Windows before I install Ubuntu or just partition my hard drive when I install Ubuntu itself

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• What sort of things can cause a whole system to appear to hang for 100s-1000s of milliseconds?

  - by Ogapo

  I am working on a Windows game and while rendering, some computers will experience intermittent pauses ("hitches" for lack of a better term). When profiled they appear in seemingly random places in the code. Eventually I noticed that it wasn't just my process that was affected, but (seemingly) every process on the system. All of the threads in my application hitch at once. The CPU utilization drops during these hitches and it appears as if most processes make no progress. This leads me to believe this may be an Operating System or Driver issue, but it only occurs while playing the game (and only on some systems). What sort of operations might the operating system be doing that would require the kernel to pause all user threads and block. Some kind of I/O? At first I thought of paging but my impression is that would only affect a single process, no? Some systems in use: Windows, DirectX (3d), nVidia cards (unknown if replicates on ATI), using overlapped io for streaming

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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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• No sound with a Creative Labs Soundblaster live EMU10K1X

  - by Geo

  I just installed ubuntu. things seems great but I have no sound. When I go to the settings menu I chose from various setup. I found one that work which had 4 speakers a subwofer and a front speaker. When I test it the sound works fine. However, when I try playing an *.mp3 file or try to watch a video on you tube I get no sound at all. I have a dual boot with windows XP and there is no problem in windows at all. Below is my setup. OS: ubuntu 11.10 machine: dell dimension 8300 speakers: dell creative lab sounblaster live EMU10K1X video: ATI RADEON R350 [Radeon 9800 Pro] secondary Following https://wiki.ubuntu.com/DebuggingSoundProblems did not help.

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