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  • Swichable Graphics

    - by user67291
    Im having a bit of a problem with my 2 graphic card in my laptop. laptop: Acer Aspire 5553g Graphic Cards: Performance: ATI Mobility Radeon HD 5650 Power saving: ATI Radeon HD 4200. On this laptop i have used ubuntu 11.04, then upgraded to 11.11, and now upgraded to 12.04 the other day. The problem is that sins i upgraded to 12.04 im unable to switch to my performance graphic card using the Catalyst Control Center. Under 11.04 and 11.11 it was no problem. I open the Catalyst Control Center and select the performance option then apply, it tels me that it will be applied after reboot, I reboot and nothing has changed. Im able to "force" it by changing in BIOS, so i know there is nothing wrong with the card. Thanks /Daan

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  • Can I run Ubuntu Live from a USB flash-drive without destroying the data on it?

    - by Lucian
    I already have a number of files on a flash drive (8 gb) that I would prefer to keep, but I would like to try Ubuntu even if merely for the aesthetics. I use Windows XP. I know that it's definitely possible to run Ubuntu from a bootable drive like my flash drive to try Ubuntu but I would much rather keep my files intact not only on my flash drive but also my hard drive, if that's possible. I also want to know if it's entirely possible that while running Ubuntu from the USB if I can switch back to Windows while my computer is still on. If I'm missing something, please let me know. I'm very grateful for any assistance in this matter.

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  • Method chaining vs encapsulation

    - by Oak
    There is the classic OOP problem of method chaining vs "single-access-point" methods: main.getA().getB().getC().transmogrify(x, y) vs main.getA().transmogrifyMyC(x, y) The first seems to have the advantage that each class is only responsible for a smaller set of operations, and makes everything a lot more modular - adding a method to C doesn't require any effort in A, B or C to expose it. The downside, of course, is weaker encapsulation, which the second code solves. Now A has control of every method that passes through it, and can delegate it to its fields if it wants to. I realize there's no single solution and it of course depends on context, but I would really like to hear some input about other important differences between the two styles, and under what circumstances should I prefer either of them - because right now, when I try to design some code, I feel like I'm just not using the arguments to decide one way or the other.

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  • What issues lead people to use Japanese-specific encodings rather than Unicode?

    - by Nicolas Raoul
    At work I come across a lot of Japanese text files in Shift-JIS and other encodings. It causes many mojibake (unreadable character) problems for all computer users. Unicode was intended to solve this sort of problem by defining a single character set for all languages, and the UTF-8 serialization is recommended for use on the Internet. So why doesn't everybody switch from Japanese-specific encodings to UTF-8? What issues with or disadvantages of UTF-8 are holding people back? EDIT: The W3C lists some known problems with Unicode, could this be a reason too?

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  • Switching windows behavior in Ubuntu

    - by Leonid
    Ubuntu supports a shortcut to switch windows Ctrl+Tab, but it allows you to move through apps in one direction only. Direction depends on whether initially Ctrl+Tab or Ctrl+Shift+Tab was pressed. Ctrl+Tab will move forwards, but pressing Shift while moving forward doesn't change the direction, it still goes forwards unlike Windows default behaviour. Ctrl+Shift+Tab will move backwards, but if Shift is released while moving backwards the menu will disappear. Is there a way to configure Ubuntu so that you could go backwards and forwards without running the menu twice?

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  • Methods of ordering function definitions in code

    - by xralf
    When I work on some programming project (usually command line application in Python with many switches), I'm usually creating about 30 and more functions. Most of the functions are in one file (except some helpers that I utilize in more projects). Some of the functions are called on particular switch (like -p or --print) but many functions do some helper computations, print operations or database operations because I don't want to main functions be too large. When I have an idea for a new functionality I often put new functions randomly to the file. Should I think more about it and place it to some particular place? Are there some methods for this?

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  • Truly useful UML diagrams

    - by eversor
    UML has a jungle of Diagrams. Profile Diagrams, Class Diagrams, Package Diagrams... However, (IMH-and-not-too-experienced-O) I quite see that doing each and every diagram is overkill. Therefore, which UML Diagrams are more suitable in a web context, more expecificly a blog (we want to build it from scratchs). I understand that just because I used UML Diagrams does not imply that our code would be great and brilliant... but, it certainly would be better than just unplanified code...

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  • Custom keybindings without gnome-settings-daemon

    - by Carlito
    I am using Ubuntu 12.04 (Fallback) and I am trying to slim it down, mostly for fun/learning experience. I killed gnome-settings-daemon because I set up my theming from elsewhere. But now some of my keybindings are lost. I think the windowmanager ones are still working, like Alt-Tab and switch workspace. But my mediakeys to change volume and my custom keybindings are not working anymore. Is there a different way to save custom keybindings? Do I really need to run settings-manager to setup my keybindings?

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  • Simple solution now to a problem from 8 years ago. Use SQL windowing function

    - by Kevin Shyr
    Originally posted on: http://geekswithblogs.net/LifeLongTechie/archive/2014/06/10/simple-solution-now-to-a-problem-from-8-years-ago.aspxI remember having this problem 8 years ago. We had to find the top 5 donor per month and send out some awards. The SQL we came up with was clunky and had lots of limitation (can only do one year at a time), then switch the where clause and go again. Fast forward 8 years, I got a similar problem where we had to find the top 3 combination of 2 fields for every single day. And the solution is this elegant: SELECT CAST(eff_dt AS DATE) AS "RecordDate" , status_cd , nbr , COUNT(*) AS occurance , ROW_NUMBER() OVER (PARTITION BY CAST(eff_dt AS DATE) ORDER BY COUNT(*) DESC) RowNum FROM table1 WHERE RowNum < 4 GROUP BY CAST(eff_dt AS DATE) , status_cd , nbr If only I had this 8 years ago. :) Life is good now!

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  • How to use OpenGL functions from multiples thread?

    - by Robert
    I'm writing a small game using OpenGL. I'm implementing basic networking in this game and I'm facing a problem. I have a thread in my client socket class that check for available data, when there are data I raise an event like this : immutable int len = this.m_socket.receive(data); if(len > 0) { this.m_onDataEvent(data); } Then on my game class, I have a function that handle and parse data like this : switch(msgId) { case ProtocolID.CharacterData: // Load terrain with opengl, character model.... Im not able to call opengl functions because my opengl context is created from a different thread. But I really don't know how I can solve this problem, I tried Google but it's really hard to find a solution. I'm using D programming language if it can help.

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  • What should I worry about when changing OpenGL origin to upper left of screen?

    - by derivative
    For self education, I'm writing a 2D platformer engine in C++ using SDL / OpenGL. I initially began with pure SDL using the tutorials on sdltutorials.com and lazyfoo.net, but I'm now rendering in an OpenGL context (specifically immediate mode but I'm learning about VAOs/VBOs) and using SDL for interface, audio, etc. SDL uses a coordinate system with the origin in the upper left of the screen and the positive y-axis pointing down. It's easy to set up my orthographic projection in OpenGL to mirror this. I know that texture coordinates are a right-hand system with values from 0 to 1 -- flipping the texture vertically before rendering (well, flip the file before loading) yields textures that render correctly... which is fine if I'm drawing the entire texture, but ultimately I'll be using tilesets and can imagine problems. What should I be concerned about in terms of rendering when I do this? If anybody has any advice or they've done this themselves and can point out future pitfalls, that would be great, but really any thoughts would be appreciated.

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  • Advice for transitioning into a Java developer position from doing other types of web development?

    - by Rick
    I've been doing web programming and currently work at a company working with mainly PHP and Javascript. For a little while now I've been becoming more and more frustrated with the shortcomings of this type of development and want to move to a company with a more defined development process that values doing things the "right way" such as using Unit tests, dependency injection / IoC, etc. I've been learning JEE / Java as much as I can on my own time but would really like to make a switch to doing this as my career and leave behind the PHP world altogether. I'm just wondering if anyone can give me advice on which things to put my main focus on right now to make myself marketable as an entry level Java developer. Basically, I feel that I'm not really learning anything new at my current job that will benefit me and its only making me more and more frustrated so I figure if there is any way to position myself for a transition I would rather do it sooner than later. Thanks for any advice.

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  • How to shift development culture from tech fetish to focusing on simplicity and getting things done?

    - by Serge
    Looking for ways to switch team/individual culture from chasing latest fads, patterns, and all kinds of best practices to focusing on finding quickest and simplest solutions and shipping features. My definition of "tech fetish": Chasing latest fads, applying new technologies and best practices without considering product/project impact, focusing on micro optimization, creating platforms and frameworks instead of finding simple and quick ways to ship product features. Few examples of culture differences: From "Spent a day on trying to map database query with five complex joins in NHibernate" to "Wrote a SQL query and used DataReader to pull data in" From "Wrote super-fast JSON parser in C++" to "Used Python to parse JSON response and call C++ code" From "Let's use WCF because it supports all possible communication standards" to "REST is simple text-based format, let's stick with it and use simple HTTP handlers"

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  • How many tiers should my models have in a DB driven web app?

    - by Hanno Fietz
    In my experience, the "Model" in MVC is often not really a single layer. I would regularly have "backend" models and "frontend" models, where the backend ones would have properties that I want to hide from the UI code, and the frontend ones have derived or composite properties which are more meaningful in the context of the UI. Recently, I have started to introduce a third layer in between when database normalization created tables that did not really match the conceptual domain objects anymore. In those projects I have model classes that are equivalent with the DB structure, these become components of objects that represent the domain model, and finally these are filtered and amended for displaying information to the user. Are there patterns or guidelines for how, when and why to organize the data model across application layers?

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  • Oracle Enterprise Manager Cloud Control 12c Release 2 (12.1.0.2) is Available Now !

    - by Anand Akela
    Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Oracle today announced the availability of Oracle Enterprise Manager Cloud Control 12c Release 2 (12.1.0.2). It is now available for download on OTN on ALL platforms. This is the first major release since the launch of Enterprise Manager 12c in October of 2011. This is the first time when Enterprise Manager release is available on all platforms simultaneously. This is primarily a stability release which incorporates many of issues and feedback reported by early adopters. In addition, this release contains many new features and enhancements in areas across the board. New Capabilities and Features Enhanced management capabilities for enterprise private clouds: Introduces new capabilities to allow customers to build and manage a Java Platform-as-a-Service (PaaS) cloud based on Oracle Weblogic Server. The new capabilities include guided set up of PaaS Cloud, self-service provisioning, automatic scale out and metering and chargeback. Enhanced lifecycle management capabilities for Oracle WebLogic Server environments: Combining in-context multiple domain, patching and configuration file synchronizations. Integrated Hardware-Software management for Oracle Exalogic Elastic Cloud through features such as rack schematics visualization and integrated monitoring of all hardware and software components. The latest management capabilities for business-critical applications include: Business Application Management: A new Business Application (BA) target type and dashboard with flexible definitions provides a logical view of an application’s business transactions, end-user experiences and the cloud infrastructure the monitored application is running on. Enhanced User Experience Reporting: Oracle Real User Experience Insight has been enhanced to provide reporting capabilities on client-side issues for applications running in the cloud and has been more tightly coupled with Oracle Business Transaction Management to help ensure that real-time user experience and transaction tracing data is provided to users in context. Several key improvements address ease of administration, reporting and extensibility for massively scalable cloud environments including dynamic groups, self-updateable monitoring templates, bulk operations against many events, etc. New and Revised Plug-Ins: Several plug-Ins have been updated as a part of this release resulting in either new versions or revisions. Revised plug-ins contain only bug-fixes and while new plug-ins incorporate both bug fixes as well as new functionality. Plug-In Name Version Enterprise Manager for Oracle Database 12.1.0.2 (revision) Enterprise Manager for Oracle Fusion Middleware 12.1.0.3 (new) Enterprise Manager for Chargeback and Capacity Planning 12.1.0.3 (new) Enterprise Manager for Oracle Fusion Applications 12.1.0.3 (new) Enterprise Manager for Oracle Virtualization 12.1.0.3 (new) Enterprise Manager for Oracle Exadata 12.1.0.3 (new) Enterprise Manager for Oracle Cloud 12.1.0.4 (new) Installation and Upgrade: All major platforms have been released simultaneously (Linux 32 / 64 bit, Solaris (SPARC), Solaris x86-64, IBM AIX 64-bit, and Windows x86-64 (64-bit) ) Enterprise Manager 12.1.0.2 is a complete release that includes both the EM OMS and Agent versions of 12.1.0.2. Installation options available with EM 12.1.0.2: User can do fresh Install or an upgrade from versions EM 10.2.0.5, 11.1, or 12.1.0.2 ( Bundle Patch 1 not mandatory). Upgrading to EM 12.1.0.2 from EM 12.1.0.1 is not a patch application (similar to Bundle Patch 1) but is achieved through a 1-system upgrade. Documentation: Oracle Enterprise Manager Cloud Control Introduction Document provides a broad overview of capabilities and highlights"What's New" in EM 12.1.0.2. All updated Oracle Enterprise Manager documentation can be found on OTN Upgrade Guide Please feel free to ask questions related to the new Oracle Enterprise Manager Cloud Control 12c Release 2 (12.1.0.2) at the Oracle Enterprise Manager Forum . You could also share your feedback at twitter  using hash tag #em12c or at Facebook . Stay Connected: Twitter |  Face book |  You Tube |  Linked in |  Newsletter

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  • ati graphics always on

    - by naveen
    i use a lenovo y560 and has ubunto 12.04 and win 7 installed when i boot into ubunto i find that the ati car is always on which drains the battery and overheats the system is there any to switch off the ati graphics and use intel hd in ubuntu ati hd 5730 is the graphics card that i use and it has switchable graphics in it. in bios the only two options for video adapter is discrete and switchable after installing ati driver from amd website i am getting a commamd prompt as log in screen first error message comes as Your system is running in low-graphics mode with options to run in low graphics mode this time reconfigure exit all three options i am stuck i need to manually reboot the system

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  • Outside Operations in JD Edwards EnterpriseOne Manufacturing

    - by Amit Katariya
    Upcoming E1 Manufacturing webcasts   Date: March 30, 2010Time: 10:00 am MDTProduct Family: JD Edwards EnterpriseOne Manufacturing   Summary This one-hour session is recommended for functional users who would like to understand the Outside Operations process overview, including Setup, Execution and Troubleshooting.   Topics will include: Concept Setup in context of PDM, SFC, Product Costing, and Manufacturing Accounting Processing Troubleshooting   A short, live demonstration (only if applicable) and question and answer period will be included. Register for this session Oracle Advisor is dedicated to building your awareness around our products and services. This session does not replace offerings from Oracle Global Support Services. Important links related to Webcasts Advisor Webcast Current Schedule Advisor Webcast Archived Recordings Above links requires valid access to My Oracle Support

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  • Oracle Process Accelerators Release 11.1.1.7.0 Now Available

    - by Cesare Rotundo
    The new Oracle Process Accelerators (PA) Release (11.1.1.7.0) delivers key functionality in many dimensions: new PAs across industries, new functionality in preexisting PAs, and an improved installation process. All PAs in Release 11.1.1.7.0 run on the latest Oracle BPM Suite and SOA Suite, 11.1.1.7. New PAs include: Financial Reports Approval (FRA): end-to-end solution for efficient and controlled Financial Report review and approval process, enabling financial analysts and decision makers to collaborate around Excel. Electronic Forms Management (EFM): supports the process to design and expose eForms with the ability to quickly design eForms and associate approval processes to them, and to then enable users to select, fill, and submit eForms for approval Mobile Data Offloading (MDO): enables telecommunications providers to reduce congestion on cellular networks and lower cost of operations by using Oracle Event Processing (OEP) and BAM to switch devices from cellular networks to Wi-Fi. By adopting the latest PA release , customers will also be able to better identify and kick-start smart extension of their processes where business steps are supported by Apps: PA 11.1.1.7.0 includes out-of-the-box business process extension scenarios with Oracle Apps such as Siebel (FSLO) and PeopleSoft (EOB).

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  • Referring EDMX file in Separate VS Project from T4 Template

    - by Paul Petrov
    In my project I needed to separate template generated entities, context in separate projects from the EDMX file. I’ve stumbled across this problem how to make template generator to find edmx file without hardcoding absolute path into the template. Using relative path directly (inputFile=@”..\ProjectFolder\DataModel.edmx”) generated error: Error      2              Running transformation: System.IO.DirectoryNotFoundException: Could not find a part of the path 'C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\ProjectFolder\DataModel.edmx' The code that worked well for me when placed in the beginning of the .tt file: … string rootPath = Host.ResolvePath(String.Empty); string relativePath = @"..\\ProjectDir\\DataModel.edmx"; string inputFile = Path.Combine(rootPath, relativePath); EdmItemCollection ItemCollection = loader.CreateEdmItemCollection(inputFile); …

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  • Know a little of a lot or a lot of a little? [closed]

    - by Jeff V
    Possible Duplicate: Is it better to specialize in a single field I like, or expand into other fields to broaden my horizons? My buddy and I who have been programming for 13 years or so were talking this morning and a question that came up was is it better to know a little of a lot (i.e. web, desktop, VB.Net, C#, jQuery, PHP, Java etc.) or is it better to know a lot of a little (meaning expert in something). The context of this question is what makes someone a senior programmer? Is it someone that has been around the block a few times and has been in many different situations or one that is locked in to a specific technology that is super knowledgeable in that one technology? I see pro's and con's of both scenarios.. Just wondering what others thought.

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  • HLSL: An array of textures and sampler states

    - by nate142
    The shader must switch between multiple textures depending on the Alpha value of the original texture for each pixel. Now this would word fine if I didn't have to worry about SamplerStates. I have created my array of textures and can select a texture based on the Alpha value of the pixel. But how do I create an Array of SamplerStates and link it to my array of textures? I attempted to treat the SamplerState as a function by adding the (int i) but that didn't work. Also I can't use Texture.Sample since this is shader model 2.0. //shader model 2.0 (DX9) texture subTextures[255]; SamplerState MeshTextureSampler(int i) { Texture = (subTextures[i]); }; float4 SampleCompoundTexture(float2 texCoord, float4 diffuse) { float4 SelectedColor = SAMPLE_TEXTURE(Texture, texCoord); int i = SelectedColor.a; texture SelectedTx = subTextures[i]; return tex2D(MeshTextureSampler(i), texCoord) * diffuse; }

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  • Behavior tree implementation details

    - by angryInsomniac
    I have been looking around for implementation details of behavior trees, the best descriptions I found were by Alex Champarand and some of Damian Isla's talk about AI in Halo 2 (the video of which is locked up in the GDC vault sadly). However, both descriptions fall short of helping one actually create a BT, one particular question has been bugging me for a while. When is the tree in a behavior tree evaluated? Furthermore: If the tree is in the middle of executing a sequence of actions (patrolling waypoints) and a higher priority impulse comes in (distraction sound) , how to switch to that side of the tree seamlessly without resorting to a state machine like system and if it is decided that the impulse was irrelevant (the distraction is too far away to affect this guard), how to go back to the last thing that the guard was doing ? I have quite a few questions like this and I don't wish to flood the board with separate queries so if you know of any resource where questions like these can be answered I would be very grateful.

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  • Easiest Way To Implement "Slow Motion" and variable game speed in XNA?

    - by TerryB
    I have an XNA 4.0 game that I want to be able to switch into slow motion and back again to full speed every now and then. So if you kill an enemy the game switches into slow motion as they explode and then goes back to normal. What is the easiest way to do this in XNA 4.0 without having to alter all my existing code that relies on GameTime? I have some code that relies on the TotalGameTime, which will be wrong unless I get XNA to slow down. Is there anyway to avoid refactoring that code? Thanks!

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  • Switching songs - MediaPlayer lags the game

    - by Fibericon
    When the player encounters a boss in the game I'm working on, I want to have the music change. It seems simple enough with the MediaPlayer class to fade out the current song, switch to another, and then fade the new song in. However, at the point where the second song starts, the game freezes for a split second. The songs in question aren't particularly large either - the first song is 1.7mb and the second song is 3.1mb, both mp3 format. This is the code I'm using to do it: protected void switchSong(GameTime gameTime) { if (!bossSongPlaying) { MediaPlayer.Volume -= ((float)gameTime.ElapsedGameTime.TotalSeconds/10); if (MediaPlayer.Volume < 0.05f) { MediaPlayer.Play(bossSong); MediaPlayer.Volume = 1.0f; bossSongPlaying = true; } } } What can I do to eliminate that momentary hang?

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  • How to force Empathy Internet Messaging to change default webcam?

    - by user43430
    I just recently bought a new webcam. It is USB powered. For personal reasons, I wish to not use the built in webcam that came with my netbook. I want to use this new one. I love empathy, it is a great chat client. But, I can't seem to switch my default webcam in empathy from the built in webcam, to the one I just bought. So, is there a way to force empathy to use the USB powered webcam, rather than the built in webcam?

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