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• GlassFish Extension for Oracle JDeveloper

  - by Shay Shmeltzer

  We just release a new version of Oracle JDeveloper - 11.1.2.3. One new feature here is built-in support for GlassFish. This include the ability to create an "application server" connection to GlassFish and then deploy to that server with one click from inside JDeveloper. You can use this for deploying Oracle ADF Essentials application on Glassfish, but you can also use it to deploy any Java EE application you build in JDeveloper on GlassFish. However, if you are planning to work with GlassFish and JDeveloper on a more regular basis as your development server, then you might find my new extension useful. The new extension allows you to start and stop an external GlassFish instance, as well as start it in debug mode (which will allow JDeveloper to remotely debug your application as it runs on the server. I also added a button that will invoke the web admin console of Glassfish. Here is a quick demo that will show you how to work with the extension: The extension is available from help->check for updates, or you can download it directly from here, and then use help->check for updates pointing to the local zip file.

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• Prioritize compiler functionality/tasks, when designing a new language

  - by Mahdi

  Well, the question should be so hard to ask and I expect couple of down votes, however, I'm really interested to have your ideas and recommendations. :) I've already made a very simple compiler, with a few and limited functionality. Now I'm getting more on it to make it more like a real-world compiler. I definitely need to start over 'cause I've much more experience and ideas in this area rather a few years ago. So, I want to know, right now, from the very first step again, which tasks/features for the new compiler should implement first and which tasks has lower priority rather than others? For example, I'd say, first I'd go to decide about the object-oriented structure for the new language, but you might say, hey, just go for a compiler that could define a variable, when you finished that, then start thinking about OOP designs ... I prefer to hear the pros and cons for your suggestions also. Actually I like to start from Bottom to Top, where I could add simplest tasks first, and later adding more complex ones, but I'm totally open for any new ideas, and really appreciate that. Also please consider that I'm thinking about the design concepts. Actually I expect answers like: Priority from Highest to Lowest: variables, because .... functions, because .... loops, because .... ... Not: define a syntax for your new language, and start parsing your source code ...

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• What You Said: Where Do You Find Your Next Game?

  - by Jason Fitzpatrick

  Earlier this week we asked you to share your favorite places and tricks for finding new video games to play. It turns out the least of your problems was finding new games! From the comments it became apparent How-To Geek readers had absolutely no problem finding new games to add to their gaming stable. Buzz writes: I have quite an elaborate procedure in finding my next game:For free games i simply follow the feeds on a few websites like Freegamer, LinuxGames, HappyPenguin and Penguspy. Every now and them i browse Wikipedia articles on free/FOSS games. For commercial games the procedure depends on what i enjoyed the most in that game:- If i enjoyed the story or the general feel: i usually start with a game i like and look for sequels, prequels, mods or spinoffs. I even go out on a limb and give other platforms (than a PC) a try, even if it usually means emulation. If you really enjoy a game series/saga it’s usually worth the effort.- If i enjoy the producer/gaming company then i seek out more of their games.- If i enjoy the technical achievements that went into making the game or if i am concerned for the system requirements of my gear i try to play games that are built on the same engine(s) as one of the games i ran smooth and enjoyed.- If i feel like playing a particular genre i usually start with a title i enjoyed and look for alternatives or similar games- You can always try searching for Game of The Year winners for a particular time period or other similar accomplishments. They usually yield great results. How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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• RDA and Fusion Middleware Diagnostic Framework Integration

  - by Daniel Mortimer

  Further to my last blog entry "FMw Diagnostic Framework : Automatic Capture of Diagnostic Data Upon First Failure!" I have spent some time exploring how Remote Diagnostic Agent (RDA) integrates with Diagnostic Framework. Remote Diagnostic Agent, by default, collects the information about the last 10 incidents which have been captured in the Automatic Diagnostic Repository (ADR). This information can be located via RDA's Start Page Menu system. See screenshot below. Screenshot - Viewing Diagnostic Framework Incident Information in a RDA Package Note: In the next release of RDA - version 4.30 - the Diagnostic Repository menu label will have it's own position in the weblogic managed server sub menu hierarchy rather than be a child menu item of the logs menuDiagnostic Framework is also capable of launching RDA engine and including the output in an incident package. This is achieved via the command "IPS GENERATE PACKAGE". The RDA output is written to DOMAIN_HOME/servers/<server name>/adr/diag/ofm/<domain name>/<server name>/incpkg/pkg_[number]/seq_[number]/rda The RDA collected files are best viewed (as shown in the screenshot above) by opening the RDA Start Page - "DFW__start.htm" - from this directory in a browser. If you do not have a browser available on the host machine, zip the contents of the rda directory and transfer and extract to a machine which has a browser.  The explanation of the integration goes a little deeper. If you want to know more, read My Oracle Support document: Understanding RDA and FMW 11g Diagnostic Framework Integration [Document 1503644.1]

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• How can a usb be detected but not show up anywhere?

  - by George Mauer

  I started the morning by trying to create a bootable usb using a 2gb stick and the startup disk creator. It seemed to run through the whole process just fine until it got to a screen that read something like "Creating memory partion" and which sat on 100% for about 45 minutes before I hit cancel and removed the usb stick. Now the usb stick is not being detected as storage or...anything (even on my windows pc) though it does show up in the syslog. Allow me to demonstrate. We start with the usb not plugged in: [georgemauer@ubuntu:~]$ sudo fdisk -l (04-04 16:01) Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x994bdc0f Device Boot Start End Blocks Id System /dev/sda1 2048 27650047 13824000 27 Hidden NTFS WinRE /dev/sda2 * 27650048 27854847 102400 7 HPFS/NTFS/exFAT /dev/sda3 27854848 976771119 474458136 7 HPFS/NTFS/exFAT I plug in the usb: [georgemauer@ubuntu:~]$ tail -f /var/log/syslog ***Snip*** Apr 4 15:01:18 ubuntu wpa_supplicant[1136]: WPA: Group rekeying completed with 00:24:36:ad:e7:3f [GTK=TKIP] Apr 4 15:02:29 wpa_supplicant[1136]: last message repeated 3 times Apr 4 15:02:29 ubuntu kernel: [22122.788133] usb 2-1: new high speed USB device number 13 using ehci_hcd Apr 4 15:02:29 ubuntu kernel: [22122.923873] scsi10 : usb-storage 2-1:1.0 Apr 4 15:02:29 ubuntu mtp-probe: checking bus 2, device 13: "/sys/devices/pci0000:00/0000:00:13.2/usb2/2-1" Apr 4 15:02:30 ubuntu mtp-probe: bus: 2, device: 13 was not an MTP device Apr 4 15:02:30 ubuntu kernel: [22123.926154] scsi 10:0:0:0: Direct-Access GENERIC USB Mass Storage 1.00 PQ: 0 ANSI: 2 Apr 4 15:02:30 ubuntu kernel: [22124.105118] sd 10:0:0:0: Attached scsi generic sg1 type 0 Apr 4 15:02:30 ubuntu kernel: [22124.108212] sd 10:0:0:0: [sdb] Attached SCSI removable disk but then: [georgemauer@ubuntu:~]$ ls /mnt -alF (04-04 16:02) total 8 drwxr-xr-x 2 root root 4096 2011-04-21 12:51 ./ drwxr-xr-x 26 root root 4096 2012-03-31 13:16 ../ [georgemauer@ubuntu:~]$ ls /media -alF (04-04 16:03) total 8 drwxr-xr-x 2 root root 4096 2012-04-04 12:18 ./ drwxr-xr-x 26 root root 4096 2012-03-31 13:16 ../ What could be going on and how do I recover my usb key?

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• What's so bad about pointers in C++?

  - by Martin Beckett

  To continue the discussion in Why are pointers not recommended when coding with C++ Suppose you have a class that encapsulates objects which need some initialisation to be valid - like a network socket. // Blah manages some data and transmits it over a socket class socket; // forward declaration, so nice weak linkage. class blah { ... stuff TcpSocket *socket; } ~blah { // TcpSocket dtor handles disconnect delete socket; // or better, wrap it in a smart pointer } The ctor ensures that socket is marked NULL, then later in the code when I have the information to initialise the object. // initialising blah if ( !socket ) { // I know socket hasn't been created/connected // create it in a known initialised state and handle any errors // RAII is a good thing ! socket = new TcpSocket(ip,port); } // and when i actually need to use it if (socket) { // if socket exists then it must be connected and valid } This seems better than having the socket on the stack, having it created in some 'pending' state at program start and then having to continually check some isOK() or isConnected() function before every use. Additionally if TcpSocket ctor throws an exception it's a lot easier to handle at the point a Tcp connection is made rather than at program start. Obviously the socket is just an example, but I'm having a hard time thinking of when an encapsulated object with any sort of internal state shouldn't be created and initialised with new.

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• Infrastructure to effectively set up experiements and learn from them

  - by David

  Open-org.com is in the early stages of creating our first product, a place on the web, where one can ask lawyers questions at a fraction of their normal costs. An early stage front page can be found here. I got inspired by this video, which is recommended by Jeff Atwood, which talks about getting feedback faster, which is the reason for this question. The problem Needless to say, we want our conversion rates to be as high as possible. Therefore, we want to be able to rapidly set up a new experiment where we change something on the site (like moving an image slightly, rewriting a sentence etc.). We then want to present the modified page to a random subset of the users. After that we will compare the conversion rates of the experiment with another version. I could very well imagine that we want to run 10-100 experiments simultaneously and it would be nice to have features, where experiments that obviously have worse results will be ended before schedule. My question Does infrastructure to support the whole process exist? A short description of our infrastructure... We use EC2 and PHP and have a script to automatically start up new instances with all needed software. Still, starting up a new server for every experiment, seems like a bit of overkill, so I am wondering what other options exist. Btw. If you feel like working for Open-org.com, you can pick a task, and start working, or suggest a new task. All profits are given out to the contributors.

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• What&rsquo;s in your wallet, er&hellip;Inbox?

  - by johndoucette

  Since my first UUCP operation in UNIX to deliver and receive an email, I have always been challenged to find the ultimate email organizer. About a year ago, I switched to a very simple process of managing email and have found the ultimate in organization. On the craziest of days with 250+ emails, I keep my inbox empty. Here is how I do it; First, start with the following folders in your mailbox; Inbox    Archive    FollowUp    Hold Of course, all inbound emails will start in the Inbox. As you work throughout the day, follow these steps to keep your inbox empty; Read the email. Are you responsible for any action? If you are and can do it immediately, then do it. If you need to do it later, move the email to the “FollowUp” folder If you are not responsible for any action, move it to the archive folder. Use Outlook’s search to find them when you need them. If you will need to reference the email later in the week or for a short term (week or two), then move the email to the “Hold” folder As your day progresses, frequently review the FollowUp folder and accomplish the task *Notes: If I am waiting for someone to do something for me, I keep it in the FollowUp folder. As I review the folder, I am constantly reminded that there is something I am waiting on – and can send a simple reminder by forwarding the original email. I sometimes send myself a “todo” email and park it in the FollowUp folder I like to know how many emails are in the folders so I set the “Show total number of items” property on the folder to show the amount of emails.

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• What follows after lexical analysis?

  - by madflame991

  I'm working on a toy compiler (for some simple language like PL/0) and I have my lexer up and running. At this point I should start working on building the parse tree, but before I start I was wondering: How much information can one gather from just the string of tokens? Here's what I gathered so far: One can already do syntax highlighting having only the list of tokens. Numbers and operators get coloured accordingly and keywords also. Autoformatting (indenting) should also be possible. How? Specify for each token type how many white spaces or new line characters should follow it. Also when you print tokens modify an alignment variable (when the code printer reads "{" increment the alignment variable by 1, and decrement by 1 for "}". Whenever it starts printing on a new line the code printer will align according to this alignment variable) In languages without nested subroutines one can get a complete list of subroutines and their signature. How? Just read what follows after the "procedure" or "function" keyword until you hit the first ")" (this should work fine in a Pascal language with no nested subroutines) In languages like Pascal you can even determine local variables and their types, as they are declared in a special place (ok, you can't handle initialization as well, but you can parse sequences like: "var a, b, c: integer") Detection of recursive functions may also be possible, or even a graph representation of which subroutine calls who. If one can identify the body of a function then one can also search if there are any mentions of other function's names. Gathering statistics about the code, like number of lines, instructions, subroutines EDIT: I clarified why I think some processes are possible. As I read comments and responses I realise that the answer depends very much on the language that I'm parsing.

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• learn the programming language for computing functions about integers

  - by asd

  Hi I know something about Pascal, Mathematica and Matlab, but I dont have any idea about C,C++,C# languages. I want to learn one of the languages that they they are fast and exact to compute some arithmetic functions for large numbers(for example larger than $10^3000$). I asked somebody and he said he used C++ and he said I computed this sequence in less than 10 min. I want to know C, C++, C# and visual kind of theses programs and know which is better for my goal. Let $f$ be an arithmetic function and A={k1,k2,...,kn} are integers in increasing order. Now I want to start with k1 and compare f(ki) with f(k1). If f(ki)f(k1), put ki as k1. Now start with ki, and compare f(kj) with f(ki), for ji. If f(kj)f(ki), put kj as ki, and repeat this procedure. At the end we will have a sub sequence B={L1,...,Lm} of A by this property: f(L(i+1))f(L(i)), for any 1<=i<=m-1 I have written a code for this program with Mathematica, and it take some hours to compute f of ki's or the set B for large numbers. For example, let f is the divisor function of integers. Do you know how to write the code for my purpose in Mathematica or Matlab. Mathematica is preferable.

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• How to use Pixel Bender (pbj) in ActionScript3 on large Vectors to make fast calculations?

  - by Arthur Wulf White

  Remember my old question: 2d game view camera zoom, rotation & offset using 'Filter' / 'Shader' processing? I figured I could use a Pixel Bender Shader to do the computation for any large group of elements in a game to save on processing time. At least it's a theory worth checking. I also read this question: Pass large array to pixel shader Which I'm guessing is about accomplishing the same thing in a different language. I read this tutorial: http://unitzeroone.com/blog/2009/03/18/flash-10-massive-amounts-of-3d-particles-with-alchemy-source-included/ I am attempting to do some tests. Here is some of the code: private const SIZE : int = Math.pow(10, 5); private var testVectorNum : Vector.<Number>; private function testShader():void { shader.data.ab.value = [1.0, 8.0]; shader.data.src.input = testVectorNum; shader.data.src.width = SIZE/400; shader.data.src.height = 100; shaderJob = new ShaderJob(shader, testVectorNum, SIZE / 4, 1); var time : int = getTimer(), i : int = 0; shaderJob.start(true); trace("TEST1 : ", getTimer() - time); } The problem is that I keep getting a error saying: [Fault] exception, information=Error: Error #1000: The system is out of memory. Update: I managed to partially workaround the problem by converting the vector into bitmapData: (Using this technique I still get a speed boost of 3x using Pixel Bender) private function testShader():void { shader.data.ab.value = [1.0, 8.0]; var time : int = getTimer(), i : int = 0; testBitmapData.setVector(testBitmapData.rect, testVectorInt); shader.data.src.input = testBitmapData; shaderJob = new ShaderJob(shader, testBitmapData); shaderJob.start(true); testVectorInt = testBitmapData.getVector(testBitmapData.rect); trace("TEST1 : ", getTimer() - time); }

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• Why does glGetString returns a NULL string

  - by snape

  I am trying my hands at GLFW library. I have written a basic program to get OpenGL renderer and vendor string. Here is the code #include <GL/glew.h> #include <GL/glfw.h> #include <cstdio> #include <cstdlib> #include <string> using namespace std; void shutDown(int returnCode) { printf("There was an error in running the code with error %d\n",returnCode); GLenum res = glGetError(); const GLubyte *errString = gluErrorString(res); printf("Error is %s\n", errString); glfwTerminate(); exit(returnCode); } int main() { // start GL context and O/S window using GLFW helper library if (glfwInit() != GL_TRUE) shutDown(1); if (glfwOpenWindow(0, 0, 0, 0, 0, 0, 0, 0, GLFW_WINDOW) != GL_TRUE) shutDown(2); // start GLEW extension handler glewInit(); // get version info const GLubyte* renderer = glGetString (GL_RENDERER); // get renderer string const GLubyte* version = glGetString (GL_VERSION); // version as a string printf("Renderer: %s\n", renderer); printf("OpenGL version supported %s\n", version); // close GL context and any other GLFW resources glfwTerminate(); return 0; } I googled this error and found out that we have to initialize the OpenGL context before calling glGetString(). Although I have initialized OpenGL context using glfwInit() but still the function returns a NULL string. Any ideas? Edit I have updated the code with error checking mechanisms. This code on running outputs the following There was an error in running the code with error 2 Error is no error

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• Host grub error after installing Virtualbox - Non Recoverable

  - by BiggJJ

  I have been unable to fine a resolution to my problem and I have been suffering from it for a while. I can install Virtualbox and can reboot the machine successfully straight after. Once the system is back up I can run Virtualbox ans start working towards creating a new machine. So, say I am installing an XP machine. 1 time out of 10 it will work successfully first time. If it doesn't work (i.e BSOD), I delete the machine and start again. But when the time comes to finish up and switch off my computer, but it doesn't happen gracefully. As soon as I click shutdown, The machine dies. When the machine is switched back on I get: Error: no such device grub resuce I boot up my Grub Fix Live CD, but the grub reinstaller get stuck on searching for partitions, gparted just get stuck looking for devices and even fdisk -l drops a line and displays nothing and is the same. Stuck. The only way I know how to sort it is by re-installing Ubuntu. Has anyone had this problem, or know how to fix it?

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• Fn key sticks down

  - by Oli

  Just bought my significant other a shiny new Samsung Q330 13" netbook, stuck an OCZ Agility in it and installed Maverick. Just as a quick aside, this is a devastating combination. Graphics work perfectly and it cold-boots to desktop in about 7 seconds. Very quick. But (common to laptops) I've got a couple of problems. I'll start with the most problematic and start a new thread for the other. Like a lot of laptops, there is a Fn (function) modifier to allow some keys to have another purpose. When I tried to alter the brightness of the screen by tapping Fn+Down, it worked but kept on going until it was as dim as it could go. I tapped Fn+Up and it went to the other extreme. After that the entire keyboard ceases to work properly because the Fn modifier appears to be locked. Additionally, and as a direct side effect, I think, clicking on things doesn't result in a standard result. It's as if control is being held. A reboot is the only thing that seems to fix these problems. This isn't a problem if you don't touch the Fn key but as there are two of them on the keyboard, an accident is going to happen sooner than later, requiring a reboot (and probably some data loss). I don't have a lot of experience with laptops (I prefer my hulking great desktop) so this isn't my area of expertise. I'm open to all suggestions, even disabling the two Fn keys until we can find a better solution.

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• How can I prevent seams from showing up on objects using lower mipmap levels?

  - by Shivan Dragon

  Disclaimer: kindly right click on the images and open them separately so that they're at full size, as there are fine details which don't show up otherwise. Thank you. I made a simple Blender model, it's a cylinder with the top cap removed: I've exported the UVs: Then imported them into Photoshop, and painted the inner area in yellow and the outer area in red. I made sure I cover well the UV lines: I then save the image and load it as texture on the model in Blender. Actually, I just reload it as the image where the UVs are exported, and change the viewport view mode to textured. When I look at the mesh up-close, there's yellow everywhere, everything seems fine: However, if I start zooming out, I start seeing red (literally and metaphorically) where the texture edges are: And the more I zoom, the more I see it: Same thing happends in Unity, though the effect seems less pronounced. Up close is fine and yellow: Zoom out and you see red at the seams: Now, obviously, for this simple example a workaround is to spread the yellow well outside the UV margins, and its fine from all distances. However this is an issue when you try making a complex texture that should tile seamlessly at the edges. In this situation I either make a few lines of pixels overlap (in which case it looks bad from upclose and ok from far away), or I leave them seamless and then I have those seams when seeing it from far away. So my question is, is there something I'm missing, or some extra thing I must do to have my texture look seamless from all distances?

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• What is the best type of c# timer to use with an Unity game that uses many timers simultaneously?

  - by Kyle Seidlitz

  I am developing a stand-alone 3d game in Unity that will have anywhere from 1 to 200 timers running simultaneously. For this game timer durations will range from 5 minutes to 4 days. There will not be any countdown displays or any UI for the timers. An object will be selected, a menu choice will then be selected, and the timer will start. Several events will occur at different intervals during the duration of the timer. The events will be confined to changing the material of the selected object, and calling a 1 second sound effect like a chime or a bell. If the user wants to save or end the game before all the timers are done, the start of the still running timers is to be saved to an XML file such that when the game is started again, any still running timers will have a calculation done to see if the timer is then done, where the game will change the materials appropriately. I am still trying to figure out what type of timer to use, and see also if there are any suggestions for saving and calculating times over several days. What class(es) of timers should I use? Are there any special issues I should look out for in terms of performance?

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• Which Open Source Licenses can address concerns for an Open Source Game Engine?

  - by Chris

  I am on a team that is looking to open source an engine we are building. It's intended as an engine for Online RPG style games. We're writing it to work on both desktops and android platforms. I've been over to the OSI http://opensource.org/licenses/category to check out the most common licenses. However, this will be my first time going into an open source project and I wanted to know if the community had some insight into which licenses might be best suited. Key licensing concerns: Removing or limiting our liability (most already seem to cover this, but stating for completeness). We want other developers to be able to take part or all of our project and use it in their own projects with proper accreditation to our project. Licensing should not hinder someone's ability to quickly use the engine. They should be able to download a release and start using it without needing to wait on licensing issues. Game content (gfx, sound, etc.) that is not part of the engine should be allowed to be licensed separately. If someone is using our engine, they can retain full copy right of their content, including engine generated data. Our primary goal is exposure, which is why we're going open source to start with. Both for the project and for the individuals developing it. Are there any licenses that can require accreditation visible to players? While I'd put our primary goal as exposure, for licensing the accreditation is less of a concern. From what I've read through (and have been able to understand) it doesn't seem like any of the licenses cover anything that is produced by the licensed software. Are there any that state this specifically, or does simply not mentioning it leave it open for other licensing? Are there any other concerns that we should consider? Has anyone had any issues using any of these licenses?

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• Php profiling on production server or other options

  - by absentx

  Alright I need some help here. I am commonly asked to speed up certain sections of some websites that I program for. I have yet to be able to figure out how to use a good php diagnosis/profiling tool. Some things to consider: The sites I am working on are already built, getting a testing server set up locally is just a huge pain..I have to rewrite include paths and just so many things. This is a results oriented deal and spending days to get a site fully working on a testing platform so I can debug one page probably isn't an option. I can write tons of php, but I have no clue how to interact or mess with servers. So every tutorial I read about setting up xdebug or xhprof all seem to involve getting something installed on a production server that I don't have access to or have no clue how to work with. So are there any solutions out there that will show me where my php is slow without having to do all sorts of server stuff that I just don't know how to do? Xhprof seems to be the closest to useable for me but from what I can tell it still has to be installed on a server. If anyone can just point me in the right direction on this I would be very grateful. Maybe getting these things put on the server isn't a big deal...but I have never interacted with server command lines or anything like that. I suppose I should start sometime but I really have no idea where to start. Plus I realize that profiling on a live platform is not the greatest idea either but I feel I am in a tough spot. I have speed issues to solve and setting up a local environment while a great idea, just doesn't seem real practical at the moment.

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• bluetooth daemon not running at startup

  - by ffaxer

  I'm trying to connect a bluetooth mouse to my Xubuntu system using Blueman (v. 1.21) Problem seems to be bluetoothd not running at startup, so blueman refuses to start, only a dialog appears: "Bluez daemon is not running, blueman-manager cannot continue." On my system, bluetoothd will run only as root (sudo), so my current workaround is simply to sudo bluetoothd manually, which works fine but id like to have it run at startup so that my mouse is just working without any interaction from me, if possible. If i try to start bluetoothd as non-root it reports: Bluetooth deamon 4.91 Unable to get on D-Bus In the startup scripts i found the same bluetoothd script in all runlevels and init.d: DAEMON=/usr/sbin/bluetoothd test -f /usr/sbin/bluetoothd || exit 0 # bluetoothd normally starts up by udev rules. it needs dbus to function, log_progress_msg "bluetoothd" pkill -TERM bluetoothd || true log_progress_msg "bluetoothd" I looked in /etc/udev/rules.d/ but no reference to bluetoothd. Further i have already tried with no luck: Editing /etc/dbus-1/system.d/bluetooth.conf to include my user (essentially copying the part that was for root): I tried it while both keeping the root policy and without, still, no luck! Editing /etc/pam.d/common-session and /etc/pam.d/gdm to include the line: session optional pam_ck_connector.so In the case of common-session it was already there but with a "nox11" which i tried removing. No luck no luck. Btw, I'm confused as to which session manager I'm using, since i have both xfce4-session and gdm-session-worker running. Anyways, hope someone is savvy enough to figure it out or bring some hints, otherwise i sincerely apologize for wasting your time! I'll sign off with uname -a: Linux [mycompname] 3.0.0-9-lowlatency #12ppa1~natty1-Ubuntu SMP PREEMPT Mon Aug 22 06:52:15 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux Peace B)

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• Ubuntu installer does not show drives

  - by Tanweer Rashid

  I am trying to install Ubuntu 12.04 LTS on my Inspiron laptio, but the installer does not show any drives. My system has a 1TB SATA drive and a 32GB SSD. As far as I can figure, the boot files are kept on the SSD for fast startup (for Windows). During Win7 installation, I had to manually load drivers for RAID controller to see all available drives. Running fdisk -l from the live CD shows the following: ubuntu@ubuntu:~$ sudo fdisk -l Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x234b4782 Device Boot Start End Blocks Id System /dev/sda1 63 80324 40131 de Dell Utility /dev/sda2 * 81920 41627647 20772864 7 HPFS/NTFS/exFAT /dev/sda3 41627648 357019647 157696000 7 HPFS/NTFS/exFAT /dev/sda4 357019648 1953517567 798248960 f W95 Ext'd (LBA) /dev/sda5 672415744 1312966655 320275456 7 HPFS/NTFS/exFAT /dev/sda6 1312968704 1953517567 320274432 7 HPFS/NTFS/exFAT Disk /dev/sdb: 32.0 GB, 32017047552 bytes 255 heads, 63 sectors/track, 3892 cylinders, total 62533296 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x234b474b Device Boot Start End Blocks Id System /dev/sdb1 2048 16775167 8386560 84 OS/2 hidden C: drive ubuntu@ubuntu:~$ In the Ubuntu installer, I can only choose /dev/sdb for "Device for boot loader installation", and sdb doesn't show any drives. I cannot select /dev/sda. Any ideas anyone? Thanks.

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• Can't access external hard drives or thumb drives

  - by calden

  I am not a complete linux noob but I don't know a lot either and would greatly appreciate some help with this. I just installed Ubuntu 10.10 onto my laptop. Everything is working great however USB devices such as thumb drives and external hard drives wont show up. I have been looking around a bit and when I run sudo fdisk -l it displays this: Disk /dev/sda: 250.1 GB, 250059350016 bytes 255 heads, 63 sectors/track, 30401 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00065684 Device Boot Start End Blocks Id System /dev/sda1 * 1 29255 234983424 83 Linux /dev/sda2 29255 30402 9212929 5 Extended /dev/sda5 29255 30402 9212928 82 Linux swap / Solaris Disk /dev/sdb: 16.0 GB, 16026435072 bytes 64 heads, 32 sectors/track, 15283 cylinders Units = cylinders of 2048 * 512 = 1048576 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000df90d Device Boot Start End Blocks Id System /dev/sdb1 * 1 15283 15649776 7 HPFS/NTFS It does seem to display my 16 gig thumb drive but other then seeing it here I cant access it to read and write files to it. It does the same with my external hard drive. I know those devices work as I have tried them on my other computer and they are working fine. Also this is what is in fstab if this will help anybody help me: proc /proc proc nodev,noexec,nosuid 0 0 /dev/sdb1 / ext4 errors=remount-ro 0 1 /dev/sdb5 none swap sw 0 0 Thank you very much for the help everyone.

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• Problems with Maverick upgrade

  - by altenuta

  I upgraded to Maverick 10.10 from Lucid. I have an old Toshiba Satellite with a 1.1 MHz and 256MB RAM. Initially I couldn't get my wireless to work. That solved itself after installing various updates and programs. The problems that remain are: I have to authorize at least 2 times at start-up. This machine is Ubuntu only. No boot load screen. I have a ton of programs and system directories that are in my home folder. Is this normal? It is difficult to wake the computer from sleep. Usually I just shut it down and restart. Tonight I waited and got a message about corrupt memory. The computer takes forever to do just about everything. Slow to start programs or doing things on the web. I am a longtime Mac user (since 1986). I also manage a network of several windoze machines. I am definitely a GUI guy and do very little in the terminal so I really need to know where to begin to get things straightened out. Can I rescue this machine without wiping it and doing a fresh install? This is basically a hobby machine. Aside from all the programs and upgrades I've installed, I have almost no files or documents to worry about saving. Anyone have any ideas about the problems I'm having and the best way to proceed? Thanks, Al

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• Moving a Cube from a GUI texture on iOS [on hold]

  - by London2423

  I really hope someone can help me in this since I am working already two days but without any result. What I' am trying to achieve in this instance is to move a GameObject when a GUI Texture is touch on a Iphone. The GameObject to be moved is named Cube. The Cube has a Script named "Left" that supposedly when is "call it " from the GUITexture the Cube should move left. I hope is clear: I want to "activated" the script in the Game Object from the Guitexture. I try to use send message but without any joy as well so I am using GetComponent. This is the script "inside" the GUITexture using Unity and C# //script inside the gameobject cube so it can move left when call it from the GUItexture void Awake() { left = Cube.GetComponent<Left>().enable = true; } void Start() { Cube = GameObject.Find ("Cube"); } void Update () { //loop through all the touches on the screeen for(int i = 0 ; i < Input.touchCount; i++) { //execute this code for current touch (i) on the screen if(this.guiTexture.HitTest(Input.GetTouch(i).position)) { //if current hits our guiTecture, run this code if(Input.GetTouch (i).phase == TouchPhase.Began) //move the cube object Cube.GetComponent<Left> (); } if(Input.GetTouch (i).phase == TouchPhase.Ended) { return; } if(Input.GetTouch(i).phase == TouchPhase.Stationary); //if current finger is stationary run this code { Cube.GetComponent<Left> (); } } } } } This is the script inside the GameObject named "Cube" that is activated from the Gui Texture and when is activated from the GUITexture should allow the cube to move left public class Left : MonoBehaviour { // Use this for initialization void Start () { } // Update is called once per frame void OnMousedown () { transform.position += Vector3.left * Time.deltaTime; } } Before write here I search all documentation, tutorial videos, forums but I still don't understand where is my mistake. May please someone help me Thanks CL

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• Is there such a thing as "closure" with software work?

  - by Bobby Tables

  I burned out last year (after a decade of fulltime programming jobs) and am on a sabbatical now. With all the self-examination I've started to figure out some of the root causes of my burnout, and one of the major ones is basically this: there was never any real closure in any of the work I've ever done. It was always a case of getting into an open-ended support/maintenance grind and going stale. When I first entered the industry, I had this image of programming work being very project-based. And I expected projects to have a start, beginning, and END. And then you move on and start on something totally new and fresh. Basically I never expected that a lot (most) of software work involves supporting and maintaining the same code base for open-ended long periods of time - years and even decades. That, combined with generally having itchy feet makes me think that burnout is inevitable for me, after 2-3 years, in ANY fulltime software job. All this sounds like I probably should have been a contractor instead of a fulltimer. But when I discuss this with people, a lot of them say that even THEN you can't really escape having to go back and maintain/support the stuff you worked on, over and over (eg. Coming back on support contracts, for example). The nature of software work is simply like that. There is no project closure, unlike in many other engineering fields. So my question is - Is there ANY programming work out there which is based on short to mid term projects/stints and then moving on cleanly? And is there any particular industry domain or specialization where this kind of project work is typical?

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• Is there an application that converts a PC into a video game kiosk/arcade machine?

  - by Rahil627

  Sorry to make the question so vague. What I ultimately want is software that allows people to play independent video games on a PC and not have to worry about maintaining it. Imagine a game that was made in a few hours that does not have a restart button and crashes often. It should be able to handle these kinds of things and do more! The software should: allow the game to be restarted manually handle game crashes (likely by restarting the game) restrict the user from doing anything crazy later... offer a UI to select the game from a list handle pre-configured key bindings cross-platform (start with windows) I just want to know if this exists already before I start creating one. As of now AutoHotKey is being used to do this sloppily. If such software does not exist then perhaps someone could recommend a general open source Kiosk software? Open Kiosk? I'll take anything. (I also could not find a related tag. Not even sure if this question should be here rather than stackoverflow)

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