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  • help with migrating from Widows, x64 FGLRX, CPU load, Java and Minecraft

    - by joxer
    Im new to ubuntu, it is the second time i have installed it. This comp is Dell studio 1558. some specs: CPU- intel core i7 Q720 1.6GHz, GPU- ATI Mobility Radeon HD 5400 FGLRX- i've fallowed these instructions among inspecting many others, i have tried all of the variants mentioned in that tread before reverting back to the drivers supplied with Ubuntu ( through additional drivers ) which apparently seem to work best. i am testing them with minecraft as silly as it may sound. in 2 to 60 minutes the FPS drop from 70+ to somewhere between 0 and 5. while "fgl_glxgears" runs at between 400 and 800 FPS smoothly.. I am using oracle ( sun ) JRE6 to run minecraft, i have gotten it through a tutorial linked on oracle's website, i currently have no other version of java installed ( was worse when i had a few others here ). after closing the game Ubuntu is similarly slow, i've checked the CPU load using System Monitor and it shows one of the CPU's jumping to 80%~100% load at a time.. a reboot solves it. i realize my mess is up to me to solve but a hand is always appreciated. tyvm in advance.

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  • Need some help on tomcat URL mod_rewrite or mod_jk

    - by Redbull Fan
    I am trying to remove the context name from the url of my server. Current URL - http://www.domainname.com/MyApp/ What I need to make is to make it avaialble at - www.domainname.com/ So it is only going to host one main app and that needs to be displayed when we open www.domainname.com/ on browser. I have already tried couple of things like below - RewriteEngine On RewriteCond %{REQUEST_URI} !^/(Context/.*)$ RewriteRule ^/(.*)$ /Context/$1 [P,L] OR redirect permanent /MyApp/ abcd://domainname.com OR Using JKMount - JkMount /MyApp/* ajp13 JkMount /MyApp* ajp13 OR Deploy war file to ROOT of tomcat and make relevant chagnes in web and server.xml All of these aren't working and I keep getting a intenal error. I need a way to basically trim the tomcat URL to make short. Thanks, Andy

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  • Partitioning with preseed help

    - by kostasp
    I have a server that has 4 hds inside all in stadalone configurations (no hardware raid). I want using preseed to create a "regular" partition on disk1 on which i ll install ubuntu and create a raid 0 array with the remainning three disks. Is this possible? Can i use partman-auto/method twice inside the preseed file once for regular and once for raid? I need to use this for unattended provisioning so i need to set my disks inside the preseed file. Thanking you all in advance for your time. Costas

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  • Some help understanding and modifying a 2D shader

    - by electroflame
    I have a similar question as the one posed here, except that I don't wish to use a 1D Color Palette. I simply wish to have it display 1 color of my choosing (red, for example). I plan to use this as a "shield" effect for a 2D ship. I also wish to understand how it works a little bit better, as I'll be the first to admit that shaders in general are not my strongest suit. I'm not asking for an overview of HLSL (as that is too broad of a subject), just an explanation of how this shader works, and the best way to implement it in a 2D game. Code examples would be ideal (even if they are theoretical) but if the answer is explained well enough, I might be able to manage with plain old text. This is also in XNA 4.0. Thanks in advance.

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  • Help with calculation to steer ship in 3d space

    - by Aaron Anodide
    I'm a beginner using XNA to try and make a 3D Asteroids game. I'm really close to having my space ship drive around as if it had thrusters for pitch and yaw. The problem is I can't quite figure out how to translate the rotations, for instance, when I pitch forward 45 degrees and then start to turn - in this case there should be rotation being applied to all three directions to get the "diagonal yaw" - right? I thought I had it right with the calculations below, but they cause a partly pitched forward ship to wobble instead of turn.... :( Here's current (almost working) calculations for the Rotation acceleration: float accel = .75f; // Thrust +Y / Forward if (currentKeyboardState.IsKeyDown(Keys.I)) { this.ship.AccelerationY += (float)Math.Cos(this.ship.RotationZ) * accel; this.ship.AccelerationX += (float)Math.Sin(this.ship.RotationZ) * -accel; this.ship.AccelerationZ += (float)Math.Sin(this.ship.RotationX) * accel; } // Rotation +Z / Yaw if (currentKeyboardState.IsKeyDown(Keys.J)) { this.ship.RotationAccelerationZ += (float)Math.Cos(this.ship.RotationX) * accel; this.ship.RotationAccelerationY += (float)Math.Sin(this.ship.RotationX) * accel; this.ship.RotationAccelerationX += (float)Math.Sin(this.ship.RotationY) * accel; } // Rotation -Z / Yaw if (currentKeyboardState.IsKeyDown(Keys.K)) { this.ship.RotationAccelerationZ += (float)Math.Cos(this.ship.RotationX) * -accel; this.ship.RotationAccelerationY += (float)Math.Sin(this.ship.RotationX) * -accel; this.ship.RotationAccelerationX += (float)Math.Sin(this.ship.RotationY) * -accel; } // Rotation +X / Pitch if (currentKeyboardState.IsKeyDown(Keys.F)) { this.ship.RotationAccelerationX += accel; } // Rotation -X / Pitch if (currentKeyboardState.IsKeyDown(Keys.D)) { this.ship.RotationAccelerationX -= accel; } I'm combining that with drawing code that does a rotation to the model: public void Draw(Matrix world, Matrix view, Matrix projection, TimeSpan elsapsedTime) { float seconds = (float)elsapsedTime.TotalSeconds; // update velocity based on acceleration this.VelocityX += this.AccelerationX * seconds; this.VelocityY += this.AccelerationY * seconds; this.VelocityZ += this.AccelerationZ * seconds; // update position based on velocity this.PositionX += this.VelocityX * seconds; this.PositionY += this.VelocityY * seconds; this.PositionZ += this.VelocityZ * seconds; // update rotational velocity based on rotational acceleration this.RotationVelocityX += this.RotationAccelerationX * seconds; this.RotationVelocityY += this.RotationAccelerationY * seconds; this.RotationVelocityZ += this.RotationAccelerationZ * seconds; // update rotation based on rotational velocity this.RotationX += this.RotationVelocityX * seconds; this.RotationY += this.RotationVelocityY * seconds; this.RotationZ += this.RotationVelocityZ * seconds; Matrix translation = Matrix.CreateTranslation(PositionX, PositionY, PositionZ); Matrix rotation = Matrix.CreateRotationX(RotationX) * Matrix.CreateRotationY(RotationY) * Matrix.CreateRotationZ(RotationZ); model.Root.Transform = rotation * translation * world; model.CopyAbsoluteBoneTransformsTo(boneTransforms); foreach (ModelMesh mesh in model.Meshes) { foreach (BasicEffect effect in mesh.Effects) { effect.World = boneTransforms[mesh.ParentBone.Index]; effect.View = view; effect.Projection = projection; effect.EnableDefaultLighting(); } mesh.Draw(); } }

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  • Design help with parallel process

    - by brazc0re
    I am re-factoring some code and an having an issue with retrieving data from two parallel processes. I have an application that sends packets back and forth via different mediums (ex: RS232, TCP/IP, etc). The jist if of this question is that there are two parallel processes going on. I hope the picture below displays what is going on better than I can word it: SetupRS232() class creates a new instance of the SerialPort by: SerialPort serialPort = new SerialPort(); My question is, what is the best way that the Communicator() class, which sends out the packet via the respective medium, get access to the SerialPort object from the SetupRS232 class? I can do it with a Singleton but have heard that they are generally not the best design to go by. I am trying to follow SRP but I do feel like I am doing something wrong here. Communicator() will need to go out of it's way to get access to SetupRS232() to get access to the SerialPort class. I actually haven't found a way to even get access to it. Would designing each medium class, for example, SetupRS232(), SetupTCPIP, as a singleton be the best way to approach this problem?

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  • Help Improve Oracle Products Usability at OOW

    - by Shay Shmeltzer
    We already wrote about all the great ADF related activities at OOW. But we wanted to also let you know about an additional activity you can participate in at OpenWorld: The Oracle Middleware User Experience team will be conducting focus groups and customer feedback activities at Oracle OpenWorld 2012 (Oct. 1st - Oct. 3rd). Customer participation helps Oracle develop outstanding products and solutions. Professionals of all types are invited to participate: Directors, Project & Product Managers, Finance, Sales, Human Resources, Marketing, Recruiters, Budget Managers,  and more. **To participate in these sessions you do not have to be registered for Oracle OpenWorld.** If you or someone you know is interested in participating, please email [email protected] with the following information: Name: Company Name:  Job Title: Email: Phone Number (work, mobile, include country code):

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  • need help installing NVIDIA 6600gt drivers

    - by user11852
    I have downloaded the drivers from NVIDIA ----NVIDIA-Linux-x86-260.19.36.run----It's for my Nvidia 6600gt APG 8x-- I'm using Ubuntu10.10. How do I get them installed, is there a way that my "additional drivers" program could download it somehow. I have been using Linux for 10 days, so my knowledge is limited. The drivers that are in my "additional drivers" program don't work. Freezes and black screen.

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  • Begginer help: where to begin

    - by shad
    I want to learn how to program. A main stream programming languages like Java, C++/C# is my primary target. Current, i am a high school student and 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? and get some books or try learning from some internet websites? What would be the best option a book or website?

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  • Ubuntu 12.10 will not boot!! please help

    - by Ishmael
    Okay ive been at this for about 6 hours now, linux has never given me problems before, im installing from an isodvd going from window7 to ubuntu12.10, the installation works fine, everything loads perfect with no problems and it asks me to restart when the installation is comeplete. After the computer shuts down and i remove the livecd as it tried to boot up i get an Error: no boot disk has been detected or the disk has failed. Ive tried updating grub from the livecd because it is the only way i can boot to anything atm, nothing has worked so far. Has anyone else had this problem??

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  • Need help understanding Mocks and Stubs

    - by Theomax
    I'm new to use mocking frameworks and I have a few questions on the things that I am not clear on. I'm using Rhinomocks to generate mock objects in my unit tests. I understand that mocks can be created to verify interactions between methods and they record the interactions etc and stubs allow you to setup data and entities required by the test but you do not verify expectations on stubs. Looking at the recent unit tests I have created, I appear to be creating mocks literally for the purpose of stubbing and allowing for data to be setup. Is this a correct usage of mocks or is it incorrect if you're not actually calling verify on them? For example: user = MockRepository.GenerateMock<User>(); user.Stub(x => x.Id = Guid.NewGuid()); user.Stub(x => x.Name = "User1"); In the above code I generate a new user mock object, but I use a mock so I can stub the properties of the user because in some cases if the properties do not have a setter and I need to set them it seems the only way is to stub the property values. Is this a correct usage of stubbing and mocking? Also, I am not completely clear on what the difference between the following lines is: user.Stub(x => x.Id).Return(new Guid()); user.Stub(x => x.Id = Guid.NewGuid());

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  • Help with correct php syntax [migrated]

    - by Robert hue
    I was working on some php functions and I got confused with php syntax. Here is the function. Is this correct? to use add_filter inside function_exists check if ( ! function_exists( 'disable_password_reset' ) ) : function disable_password_reset() { return false; } add_filter ( 'allow_password_reset', 'disable_password_reset' ); endif; or this one is correct, to use add_filter outside function_exists check if ( ! function_exists( 'disable_password_reset' ) ) : function disable_password_reset() { return false; } endif; add_filter ( 'allow_password_reset', 'disable_password_reset' ); I was working on Wordpress if that matters.

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  • Help with deleted components registry keys (2 replies)

    Hello, I did a big mistake and I deleted the path of these files in windows xp registry: System.Workflow.Activities.dll PresentationFramework.Luna.dll RedistList\\FrameworkList.xml The keys that should contain the paths are: [HKEY LOCAL MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S 1 5 18\Components\300DC0511590697408C9B53F71E7AB4A] &quot;0DC1503A46F231838AD88BCDDC8E8F7C&quot; &quot;&quot; [H...

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  • Help w/ iPad 1 performance for tile-based DOM Javascript game

    - by butr0s
    I've made a 2D tile-based game with DOM/Javascript. For each level, the map data is loaded and parsed, then lots of tiles ( elements) are drawn onto a larger "map" element. The map is inside of a container that hides overflow, so I can move the map element around by positioning it absolutely. Works a treat on desktop browsers, and my iPad 2. My problem is that performance is really bad on iPad 1. The performance hit is directly related to all the tile elements in my map, because when I remove or reduce the number of tiles drawn, performance improves. Optimizing my collision detection loop has no effect. My first thought was to batch groups of tiles into containers, then hide/show them based on proximity to the player, however this still causes a huge hiccup when the player moves and a new group of tiles is displayed (offscreen). Actually removing the out-of-sight elements from the DOM, then re-adding them as necessary is no faster. Anyone know of any tips that might speed up DOM performance here? My map is 1920 x 1920 pixels, so as far as I know should be within the WebKit texture limit on iOS 5/iPad. The map is being moved with CSS3 transforms, and I've picked all the other obvious low-hanging fruit.

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  • Need help with AMD catalyst control center

    - by user254074
    I just built my first HTPC and I hooked it up to my Sony KDS-R60XBR1 and I am having display issues. I believe this is only a 1080i display and when I select 1920x1080 on the resolution I get strange lines on the display when anything moves on screen. I am guessing this is because it is putting it in 1080p and the TV cannot process that. As of now I have lowered the resolution and that worked but I would like to get this set at 1080. Also I cannot change the underscan. I am stuck with black borders around the display image. When I pull up the catalyst control center on my computer I am able to adjust all of this stuff but on the one on my HTPC with the TV display I have no options. See images below.

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  • 3 SQL Join Concepts to Help You Choose the Right Join

    What do SQL joins and the "teach a man to fish" Chinese proverb have in common? SQL joins, like regular expressions, are one of those commonplace programming tasks in which true success is entirely dependent upon your ability to conceptualize the outcome. Fail to do so and you'll likely wind up spending a few hours in a frustrating round of trial and error. Like regular expressions, the proliferation of online examples has actually contributed to the frustration, providing the equivalent of a day's worth of fish rather than the proverbial fishing pool. The Future of SQL Server MonitoringMonitor wherever, whenever with Red Gate's SQL Monitor. See it live in action now.

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  • Please help me to improve Re-Sharper

    - by TATWORTH
    Re-Sharper is an excellent aid to producing good code in either C# or VB.NET. Recently through using Resharper and StyleCop, I have found three area where ReSharper needs to be improved. Please log into the YouTrack at http://youtrack.jetbrains.net and vote for the following: RSRP-268868 Improvement to removal of redundant else and invert if optimisations for enhanced stylecop compliance. When Resharper removes a redundant else, there needs to be a blank line added. Currently there is no provision to specify this. Please vote for this! RSRP-272286 Resharper Feature Request to move initialisation to static constructor Currently ReSharper offers moving initialisation of of non-static variable to a constructor. Why not offer the same for a static constructor?  Please vote for this! RSRP-272285 Expansion of Switch Statement by Resharper Currently ReSharper will fill an empty switch statement based upon an enumeration but will not add missing enumeration values to such a switch statement.   Can't code withoutCoding assistance, smart code editing and code completion for C# and VB.NET

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  • Help us with our git workflow

    - by Brandon Cordell
    We have a web application that gets deployed to multiple regions around our state. An instance of the application for each region. We maintain a staging and production (master) branch in our repository, but we were wondering what is the best way of maintaining each instances codebase. It's similar at the core, but we have to give each region the ability to make specific requests that may not make it into the core of the application. Right now we have branches for each region, like region_one_staging, and region_one_production. At the rate we're growing we'll have hundreds of branches here in the next few years. Is there a better way to do this?

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  • Need help with a method to randomly lay mines in a minesweeper game

    - by avatarX
    So my Java minesweeper game is represented as a int[][] where -1 represents a mine. When I initialize my game I need to randomly place x amount of mines. What is an elegant way of doing this? I was thinking of using an ArrayList with the coordinates of each cell, randomly selecting it, changing the state of the int[][] and then removing that Point. This would ensure that no point is selected twice. Is there a more elegant way of doing this?

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  • Ubuntu Surround Sound Help?

    - by Adam
    I am running Ubuntu 12.10 on a Sony Vaio VGC-RB34G ( http://reviews.cnet.com/desktops/sony-vaio-vgc-rb34g/4505-3118_7-31289053.html ) with an integrated Realtek High Definition Audio sound card. On Windows, I can set up the sound card to provide sound to my surround sound system from the Line Out, Line In, and Mic ports, as in all of these are producing audio. I have tried to use alsa to achieve this result with no luck. Is there any possible way to do this on Ubuntu? Thanks! Here is a Picture of the manager I have on Windows and the result I want to achieve https://picasaweb.google.com/106733704390489891165/November102012#5809378929755566722

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  • htaccess 301 redirect help needed

    - by John
    Due to some issues in my site many pages are visible as duplicate using : www.example.com/page.html?task=view but it's content is exactly same as www.example.com/page.html. One way is to use http 301 redirect from www.example.com/page.html?task=view to www.example.com/page.html when anybody fetches page with arguments. But links like www.example.com/page.html?task=view will remain visible to outside world. Another way is canonicalization which I don't want to use as it is difficult to insert the tag in Joomla CMS. I want to hide www.example.com/page.html?task=view from external world. Is it possible to change the url from www.example.com/page.html?task=view to www.example.com/page.html ? I mean if there is href link of www.example.com/page.html?task=view in my web page, it should be visible to external world as without any arguments. This is different from using 301 to convert externally accessed page : www.example.com/page.html?task=view to without using arguments in .htaccess.

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  • How the Right SEO Expert Can Help You

    While there are many types of SEO experts available in the market to choose from, you have to remember that only the right ones are essentially what is needed to make sure your website does better that others. By now, you have already probably heard of searched genie optimization and what are the immense benefits that are associated with utilizing such service.

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