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• Android device connects to my computer, but doesn't play audio over Bluetooth

  - by bi99l35

  I turn on Bluetooth on both my devices and open up Music on my Android. I select a song to play, press the menu button, and tap "Via Bluetooth": I tap on my computer in the "Bluetooth Device Picker": Then it says, under the name of my computer: Connected to media audio Now I should technically be able to play music through my computer, since it "Just Worked" in Kubuntu with Blueman. But nope, something must be up with PulseAudio, because I hear no sound from my computer (I'm running Xubuntu 12.04). The reason I say this is that the devices list in Blueman shows indication of data transfer and it says it's connected, but in the PulseAudio Volume Control has no indication of my Bluetooth device (or Blueman) playing audio.

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• BCM 4311 Wireless Not Working on 11.10-Tried All Forum Suggestions

  - by Annie

  Hi I've spent hours trying all the suggestions listed on Forums on this problem all over the internet and I still can't get my wireless working. It's very discouraging because it might force me to go back to Windows which I hate. Can someone help? Perhaps I can give you some information to help identify what the issue is? b43 isn't coming up in my list of drivers...just Broadcom STA which doesn't work. I think I've removed all the blacklisted stuff... Thanks in advance! Annie

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• In a 2D tile-based game, how should NPCs and tiles reference each other?

  - by lezebulon

  I'm making a tile engine for 2D games (seen from the top). Basically the world is composed of a grid of tiles. Now I want to put for instance NPCs that can move on the map. What do you think is best: 1) each tile has a pointer to the NPC that is on its tile, or a NULL pointer 2) having a list of NPCs, and they have the coordinates of the tile they are on. 3) something else? 1) is faster for collision detection but it would use much more memory space and it is slower to find all NPCs in a map. 2) is the opposite. thanks

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• Ubuntu 14.04 doesn' t boot after upgrade from 12.04 installed inside Windows 8.1

  - by AdiC

  I have Ubuntu 12.04 installed like an app on windows 8.1 (Ubuntu 12.04 allow to be installed like an app in Windows 8.1 and it can be removed when you don't need it any more from Control Panel). Usually, to chose what os to boot when you start the laptop, you can choose between windows 8.1 and Ubuntu after windows logo appeared at start up and that was ok until I made this upgrade. Now when I try to choose Ubuntu the laptop try to boot it but, after that full colored screen is showed the screen go black and this messages appear: mount: mounting /dev/loop0/ on /root failed : Invalid argument mount: mounting /dev on /root/dev failed: No such file or directory mount: mounting /sys on /root/sys failed: No such file or directory mount: mounting /proc on /root/proc failed: No such file or directory Target filesystem doesn' t have requested /sbin/init No init found. Try passing init = bootarg. BusyBox v1.21.1 (Ubuntu 1:1:21.0-1ubuntu1) built-in shell (ash) Enter 'help' for a list of built-in commands (initramfs) _ I don' t know what to do after this screen appears. Please help !

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• Swap Mouse Buttons on startup

  - by andy boot

  This one bugs me. I fashioned this handy script to swap the left and right mouse buttons over: [My mouse is a Razer] /usr/bin/xinput set-button-map `xinput list | grep 'Razer' | grep -o \=[0-9]* | grep -o [0-9]*$` 3 2 1 4 5 6 7 8 1 10 11 12 13 When I run this in a Terminal it works. When I go to Startup Application Preferences - Add and then literally paste the above into the command field as an 'Additional startup program' It does not run on startup. Why not? I'm using Ubuntu 11-10 but this also applied to the 10-10

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• SQL Saturday 300 BBQ Crawl

  - by Bill Graziano

  SQL Saturday #300 is coming up right here in Kansas City on September 13th, 2014.  This is our fifth SQL Saturday which means it's the fifth anniversary of our now infamous BBQ Crawl.  We get together on Friday afternoon before the event and visit a few local joints.  We've done nice places and we've done dives.  We haven’t picked the venues yet but I promise you’ll be well fed! And if you’re thinking about the BBQ crawl you should think about submitting a session.  Our call for speakers closes Tuesday, July 15th so you just have time!  If you’re going to be at the event, contact me and I’ll get you added to the list.

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• find and replace app for ms word

  - by kittensatplay

  i program in python. i want to know if a program in python will work for ms word since ms word is not open source. the program basically changes words like ms word already does BUT it changes words based of off a list you write, which from what i know ms word doesnt do. if it does, just let me know. if there is a related program that is needed for a program in python or any language to work with a closed source software, jsut let me know.b also you can link to a phython specific place to ask phython related question if you know of one since im going to have a lot more in the future

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• Software Architecture

  - by Roger

  I have a question about Software Architecture, anyone can help me or give me some hints currently, I have a J2EE project which deploys in a server, I should a Java Standard project(J2SE) should run 24 hours x 7 days to monitor something it could not run separately, because the Java Project shared the some same classes such as Java Bean classes with the J2EE project maybe my design is not correct, can anyone suggest me what should I do? Using SOA? is this correct? my current solution is run this java project using a bash, but I dont think it is then best idea. I list my class packages com.company.alteck com.company.altronics com.company.gamming com.company.jaycar com.company.jup com.company.rpg com.company.sansai com.company.wiretech com.company.yatsal com.ebay.api com.ebay.bean com.ebay.credential com.ozsstock.finals com.ozstock.adapter com.ozstock.aspectj com.ozstock.model com.ozstock.persistence com.ozstock.service com.ozstock.suppliers my structure likes this, all the packages contains "company" should run separately, but depends on the model bean class. can anyone give me some hints to redesign?

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• FRM-40654 Error on Purchase Order Lines?? Stop 'em Now by Applying Patch 14204845

  - by user793553

  Procurement Development has just released a new patch for Release 12 that will stop those annoying FRM-40654 errors on Purchase Order lines, before they occur. When a Purchase Order (PO) is created through autocreate from a requisition line that accidently has blank spaces, this triggers a row lock and when the user tries to update the created PO the FRM-40654 error message ‘Record has been updated. Requery block to see the change’ occurs. Development has added code to remove these leading or trailing spaces, thus avoiding the issue in the first place.  This patch has been added to the recommend patch list in Doc ID 1358356.1 'Recommended Patches for Purchase Order and Requisition Processing'.  Be proactive and apply Patch 14204845:R12.PO.B now!

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• Component based design, but components rely on eatchother

  - by MintyAnt

  I've begun stabbing at a "Component Based" game system. Basically, each entity holds a list of components to update (and render) I inherit the "Component" class and break each game system into it. Examples: RenderComponent - Draws the entity MovementComponent - Moves the entity, deals with velocity and speed checks DamageComponent - Deals with how/if the entity gets damaged... So. My system has this: MovementComponent InputComponent Now maybe my design is off, but the InputComponent should say things like if (w key is down) add y speed to movement if (x key is down) Trigger primary attack This means that the InputComponent sort of relies on these other components. I have to do something alone the lines of: if (w key is down) { MovementComponent* entityMovement = mEntity->GetMovement(); if (entityMovement != NULL) add y speed to movement } which seems kinda crappy every update. Other options? Better design? Is this the best way? Thanks!

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• Commenting/In-Code Documentation Styles

  - by Maxpm

  This might be a stupid question, but it's been in the back of my head for a while and I can't find a decent answer anywhere else. I have a teacher who says we should explicitly list each parameter with a description, even if there's only one. This leads to a lot of repetition: double MyFunction(const int MyParam); // Function: MyFunction // Summary: Does stuff with MyParam. // Input: int MyParam - The number to do stuff with. // Output: MyParam with stuff done to it. When writing in-code documentation, how detailed are you?

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• How do I run update-grub from a LiveCD?

  - by Kelley

  Okay, so I did something stupid. I was trying to clean up my Grub entries, and accidentally removed all of my Linux kernels from Grub (they're still on the hard drive). So now, obviously, Grub doesn't give me any way to boot into Ubuntu; I can boot into Windows just fine, but Ubuntu isn't even listed. So I just want to run "sudo upgrade-grub" somehow to restore Ubuntu to the list. I can boot from a LiveCD, but once there how do I run that command? (My Ubuntu installation is on sda5, by the way.)

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• Changing the priority of Gnome Shell

  - by user32655

  I want to give Gnome-Shell the highest priority, but I couldn't change the priority on the System Monitor, an error messeage says: Can't change priority's process with pid 2841 to -5. Access denied I tried the following commands: gksu gnome-system-monitor But I can't find Gnome-Shell on the processes list, so I tried "renice command", like this: sudo renice -15 2841 And finally got this problem, the Gnome-Shell's PID always changes, it's not the same PID numbers, so I have to change the priority every time I start up my system. Can anyone help me? Thanks.

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• Upgrade from ubuntu 9.10 to 11.10

  - by Chinnu

  Our project definition is to develop CUDA programs. Our workstation has CUDA 3.1 installed in Ubuntu 9.10. We need to program in CUDA 5.0 which can be installed only on ubuntu 11.10 or 12.04. We tried upgrading but were faced with many problems as 9.10 is no longer supported. So we chose to proceed with a clean installation. Since we have a shared workstation, we need to back up the settings. We decided to use clonezilla for cloning the system. Booting from the LiveCD showed an unexpected error. Another option was to install 11.10 in an external HDD by partitioning it, but Gparted could not be installed and terminated with the error "installArchives() failed" which we couldn't solve even after modifying the sources.list. We are stuck either ways. Have no idea how to proceed and we have a deadline to submit our CUDA program. Any suggestion is welcome.

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• Does anyone know of a simple (free?) feature request tracking system we could use internally for sales people?

  - by Ryan

  I sometimes hear about pain points of customers using our app from sales people, but there really isn't a good way for us to currently keep track of these. I was going to write one myself but figured I would ask first. I was thinking something so simple it would literally just be a small form for adding a new feature, and then it would appear in the list, like stackexchange questions. Then users can upvote them, or even record each time a user complains about something related to the request so we can order them in priority based on real data. Then I can easily go look every few days and see what's going on. That's really it, nothing more complicated than that. Know of anything?

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• Display Select in an ASP.NET DropDownList

  A purchaser of my book writes: I would like a drop down list to display the text: "-Select-" initially instead of the first value of the data it is bound to. Here you go   <%@ Page Language="VB" %> <script runat="server">...(read more)...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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• VS2010 tip: Cannot find the HttpUtility on .NET 4.0?

  Now that Visual Studio 2010 is here with more options and better colors, there are a few things that have changed a little and might confused you a bit. For example the good HttpUtility, if you are creating a Windows Console application or a Windows Service and you want to use that awesome class full of goodies, you would try to go to reference and add System.Web.dll, yet in the list that dll will be missing. So did they removed that dll in .NET 4? Not really, still there however there are not profiles...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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• After installing Windows XP I can't boot into Ubuntu 12.04 LTS

  - by Osama

  I know that this issue may have been happened to many people and answered many times. For some reason, I had to install Windows XP beside Ubuntu 12.04 LTS. Once I did that, I'm no longer able to log on to my Ubuntu. The booting list screen doesn't show up. I tried some ways to fix that, one was to try Boot Repair (of course after opening Ubuntu live from a USB), however, the program didn't open after the installation had finished !! So how can I fix that? I hope you guys stick a little with my problem until it is solved

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• Speaking in Omaha: December 7, 2011

  - by Bill Graziano

  I’m presenting in Omaha on Writing Faster SQL at 6PM on December 7th.  You can find meeting details on the Omaha SQL Server User Group page. The meeting location requires an RSVP so building security has a list of attendees. The presentation is a series of suggestions on improving performance.  It ranges from simple things like comparing indexed columns to scalar values up to tips for reducing query compiles and asynchronous processing patterns.  Nearly all of these come from specific issues I’ve encountered working on poorly performing SQL Servers.

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• How to include content from remote server while keeping that content secure

  - by slayton

  I am hosting collection of videos, for which I retain the copyright, on a file server that I'd like to share with family and friends. When a user visits the my fileserver via a web browser they are asked to authenticate using HTTP auth and then they are presented with a basic list of the files. I'd like to build web application that provides a clean interface with simply library functionality. However, this app will be hosted on a different server. I'm trying to figure out a security model for my file server that doesn't require the user to login to both the file-server and the hosting-server. I want to make this as easy as possible for my non-tech savy family while still maintaining security for my files.

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• Error when trying to install Menulibre in Lubuntu 12.10 [closed]

  - by cipricus

  Possible Duplicate: How can I fix a 404 Error using a PPA? When trying to add a PPA (to install menulibre) I get these errors: Err http://ppa.launchpad.net quantal/main Sources 404 Not Found Err http://ppa.launchpad.net quantal/main i386 Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/menulibre-dev/devel/ubuntu/dists/quantal/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/menulibre-dev/devel/ubuntu/dists/quantal/main/binary-i386/Packages 404 Not Found Why is that and how to solve it? As the question was flagged as duplicate: I should clarify that I want to know why i cannot add a source that seems active in launchpad, and how could i add it and install the program, not just how to remove the error by removing the source in the software sources list Menulibre seems available in software sources. Why can't I install it? I'm in Lubuntu 12.10

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• Cron doesn't execute one of the scheduled jobs

  - by user288633

  I'm using a lubuntu desktop, distribution Ubuntu 13.10, i686. This is my problem: in the job list scheduled by cron a job hasn't effect, but in /var/log/syslog its execution is traced. This is the relative log line: Jun 4 09:06:01 kiosk CRON[14189]: (root) CMD (/usr/bin/xinput set-prop 12 --type=float "Coordinate Transformation Matrix" 0 -1 1 1 0 0 0 0 1 /tmp/mybackup.log) This job should rotate touchscreen mapping. I try different solutions: I substitute in crontab the with bash -c "", I set "export DISPLAY=:0.0" ("for Graphics related job in Unix Environment we need to set first the DISPLAY...") before the command,...and many other! I know there are a lots of details affect cron execution (path, environment variables, special character and other) and I have no more idea by now :( Could some gentleman suggest me an idea? where can I find the problem? Thanks in advance!

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• Java EE 7 support in NetBeans 7.3.1

  - by arungupta

  NetBeans IDE provide tools, templates, and samples for building Java EE 7 applications. NetBeans 7.3.1 specifically added support for the features mentioned below: Support for creating Java EE 7 projects using Maven and Ant Develop, Deploy, and Debug using GlassFish 4 Bundled Java EE 7 javadocs CDI is enabled by default for new Java EE 7 projects (CDI 1.1) Create database scripts from Entity Classes (JPA 2.1) Java Persistence Query Language (JPQL) testing tool (JPA 2.1) RESTful Java client creation using JAX-RS 2.0 Client APIs (JAX-RS 2.0) New templates for JAX-RS 2 Filter and Interceptor (JAX-RS 2.0) New templates for WebSocket endpoints (WebSocket 1.0) JMS messages are sent using JMS 2 simplified API (JMS 2.0) Pass-through attributes are supported during Facelet page editing (JSF 2.2) Resource Library Contracts(JSF 2.2) @FlowScoped beans from editor and wizards (JSF 2.2) Support for EL 3.0 syntax in editor (EL 3.0) JSON APIs can be used with code completion (JSON 1.0) A comprehensive list of features added in this release is available in NetBeans 7.3.1 New and Noteworthy. Watch the screencast below to get a quick overview of the features and capabilities: Download Netbeans 7.3.1 and start playing with Java EE 7!

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• How to manage enemy movement and shoot in a shmup?

  - by whatever

  I'm wondering what is the best (or at least a good) way of managing enemies in a shoot-em-up. Basically, what I'd do would be a class that manages displaying and updating positions of all the enemies. But how to create good deplacements for enemies? A list of where-to-go points? gravitating around some fixed points (with ponderation, distance evaluation etc.)? Same question for the shoot patterns? Can you please put me on a track?

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• Let a model instance choose appropriate view class using category. Is it good design?

  - by Denis Mikhaylov

  Assume I have abstract base model class called MoneySource. And two realizations BankCard and CellularAccount. In MoneysSourceListViewController I want to display a list of them, but with ListItemView different for each MoneySource subclass. What if I define a category on MoneySource @interface MoneySource (ListItemView) - (Class)listItemViewClass; @end And then override it for each concrete sublcass of MoneySource, returning suitable view class. @implementation CellularAccount (ListItemView) - (Class)listItemViewClass { return [BankCardListView class]; } @end @implementation BankCard (ListItemView) - (Class)listItemViewClass { return [CellularAccountListView class]; } @end so I can ask model object about its view, not violating MVC principles, and avoiding class introspection or if constructions. Thank you!

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