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• Why must I restart for HDMI audio?

  - by David Shochat

  I have a System76 Lemur Ultra laptop, which has an HDMI port. When I plug in the HDMI cable, it is recognized immediately for video, but not for audio, i.e., it does not show up in the Output tab of the Sound Settings dialog. However, if I do a full restart with the cable plugged in, then it does show up and can be selected. I've also discovered that manually killing and restarting pulseaudio with the HDMI plugged in will force it to be recognized as an available audio output. So my question is, what is broken here? I've thought about writing a bug in launchpad, but I don't know which component is malfunctioning. Is it the kernel? ALSA? Pulse Audio? Something else? By the way, the same bug seems to exist in reverse, namely if I disconnect the HDMI, it is still listed in the Output tab until I again restart the OS. This is 12.04 LTS.

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• Creating a level editor event system

  - by Vaughan Hilts

  I'm designing a level editor for game, and I'm trying to create sort of an 'event' system so I can chain together things. If anyone has used RPG Maker, I'm trying to do similar to their system. Right now, I have an 'EventTemplate' class and a bunch of sub-classed 'EventNodes' which basically just contain properties of their data. Orginally, the IAction and IExecute interface performed logic but it was moved into a DLL to share between the two projects. Question: How can I abstract logic from data in this case? Is my model wrong? Isn't cast typing expensive to parse these actions all the time? Should I write a 'Processor' class to execute these all? But then these actions that can do all sorts of things need to interact with all sorts of sub-systems.

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• DLNA Media Server and external subtitles

  - by Lobo

  I'm looking DLNA Media Server with the features above: Support most extended video formats. Reproduce external subtitles in client side. Open source or freeware software. USE CASE: DLNA Media server installed and running on my PC. In my PC, I have /home/myprofile/videos directory where I store all my video files. For example, game.of.thrones.s09.e06.mpg and game.of.thrones.s09.e06.srt Turn on my Smart-TV, connect to my DLNA Media Server (installed on my PC) Play game.of.thrones.s09.e06.mpg file and see the subtitles overlapped. Finally, my question: Is there some DLNA Media server that provides that use case?. Thank you.

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• How to deal with tautology in comments?

  - by Tamás Szelei

  Sometimes I find myself in situations when the part of code that I am writing is (or seems to be) so self-evident that its name would be basically repeated as a comment: class Example { /// <summary> /// The location of the update. /// </summary> public Uri UpdateLocation { get; set; }; } (C# example, but please refer to the question as language-agnostic). A comment like that is useless; what am I doing wrong? Is it the choice of the name that is wrong? How could I comment parts like this better? Should I just skip the comment for things like this?

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• Looking for a very subtle unit testing example

  - by Stéphane Bruckert

  In the context of Continuous Integration, I need to teach unit testing to a 20-people audience of programmers. Everything will be all right, but I am still trying to find the perfect unit testing example. More than writing tests like a robot, I want to show that unit testing can help prevent very subtle errors. I am thinking of the following scenario to happen when doing a live TDD demo: the test cases would already be written, we would have to write methods together, most of us would naturally have forgotten to handle a specific case for a method, everyone would then be surprised, when seeing that all tests don't pass, the failing test would make us think more and realize that we forgot an important case. My question will probably finish as "too broad" or "not clear what you are asking", but we never know, one of you might have a great idea. Your answer can use Java and JUnit, though any other language will be fine since only the idea will matter.

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• Republishing blog posts on a popular website

  - by Giorgi

  I started my blog about programming yesterday and in order to promote and increase traffic I submitted my rss to Codeproject which pulls my posts and publishes them at Codeproject. While it increases the number of people reading my posts (but they are reading it at codeproject) I am worried that Google will penalize my site for duplicate content (Especially considering that Codeproject has much more reputation compared to my new website). The post at Codeproject has a link back to my blog post but it does not have "rel=canonical". So my question which one is better: a link from a high reputation website and some traffic or should I remove it from codeproject so that my blog is not penalized? What if codeproject adds "rel=canonical" to the link?

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• alt+shift can't be set to toggle language

  - by Ali

  I recently did a fresh installation of Ubuntu 13.10; but there is something bothering me, which I don't quite understand. When I first tried to toggle the keyboard language(I usually switch between Persian and English) using the good old "alt+shift" shortcut it didn't work. Then, I went and checked the Keyboard shortcut settings and found out that it had been set to "super+space"(which BTW didn't work either). So I tried to change it back to "alt+shift" but it just doesn't work; when I press "alt+shift" to set it up as the toggle-language shortcut, the box automatically resets itself to its previous value(without any errors whatsoever). As far as I've checked I couldn't find any thing obvious corresponding to the shortcut "alt+shift" either. I've currently set up the shortcut as "Ctrl+space"; so I can toggle the language. My question is why I cannot set it up to just "alt+shift"?

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• Google's process for publishing/modifying pages [closed]

  - by Glenn Dayton

  I'm assuming that a group of people at Google have control of certain sections of google.com, but how does Google make sure that employees don't accidentally or intentionally sabotage the website? Does Google use Adobe Contribute or some similar product for sharing/publishing the website. Do employees use WebDAV, FTP, SFTP, or SSH to publish the site. Since Google has hundreds of thousands of servers it probably takes some time for its servers to update. Do they transmit the new copy of the website to all servers before publishing at once? This question does not apply to Google editing a database and having a page reflect the database's changes. It applies to employees editing the source code and/ or back end of the site.

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• Developing an online email service [closed]

  - by Richard Stokes

  I am interested in developing an online email service (e.g. Gmail, Hotmail, but on a much smaller scale) allowing people to sign up for free email addresses on my domain. The domain in question is already purchased, but I have no idea how to even start. I was hoping to code this using a Ruby framework such as Rails or Sinatra. Firstly, are there any libraries/pre-made solutions to this problem that exist already that would be easy enough to just plug-in to my own site? Secondly, if there are no real pre-made solutions, what are the general steps I need to take to accomplish this task?

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• Need material for character anatomy in a 2D game. Spartan Like, See Picture

  - by Edwin Soho

  I'm creating my art for an 2d based IOS game. I know some basic anatomy as you can see by the picture but I have no idea how I will make draw the pics for animation of the character walking, attacking with his sword and protecting himself with shield. Is there any anatomy reference for 2d game out there, book or anything else? for your information, I did try to find but all of stuff I found are very amateur and incomplete The picture was my attempt of creating a example of the character walking, which I'm not happy with please help, thanks Update: Since I am in a hurry I decided I would copy the anatomy from other 2d games, it is not that clean but at least I wanna be able to start it. The question is still open.

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• Exchange with Evolution or any other mail client

  - by Oscar Godson

  I see other questions about this, no answers and no one with a completely similar question. I work for a place with an Exchange 2007 server. There is an http://owa.ourserver.com that is accessible from anywhere. I've tried every combo I can think of for Evolution - Microsoft Exchange, including the MAPI plugin, but then I read that, that doesn't work on OWA Exchange email servers and I can't get it to connect at all that way. If there is no way to connect via Evolution, is there another mail client? I tried Thunderbird, but I couldn't get it to work with Exchange either...

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• Group method parameter or individual parameter?

  - by Nassign

  I would like to ask on method parameters design consideration. I am usually deciding between using individual variables as parameters versus grouping them to a class or dictionary as one parameter. Is there such a rule when you should use individual parameter against using a class or a dictionary to group the parameter? Individual parameter - Straight forward, strongly typed Dictionary parameter - Very extensible, like HTTP request but cannot be strongly typed. Class parameter - Extensible by adding member to the class parameter, strongly typed. I am looking for a design reference on when to use which? Note: I am not sure if this question is valid in programmers but I definitely think it would be closed in stackoverflow, If it is still not valid, please point me to the proper page.

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• Internal and external API architecture

  - by Tacomanator

  The company I work for maintains a successful SaaS product that grew "organically" over the years. We are planning to expand the line with a suite of new products that will share data with the existing product. To support this, we are looking to consolidate business logic into a single place: a web service layer. The WS layer will be used by: The web applications A tool to import data A tool to integrate with other client software (not an API per se) We also want to create an API that can be used by our customers that are capable of using it to create their own integrations. We are struggling with the following question: Should the internal API (aka the WS layer) and the external API be one in the same, with security and permission settings to control what can be done by who, or should they be two separate applications where the external API just calls the internal API like any other application? So far in our debate it seems that separating them may be more secure, but will add overhead. What have others done in a similar situation?

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• Prevent APT from overwriting JCE jars

  - by Doc

  My server runs a Java application that requires I replace a few java library files with ones I downloaded on my own. This has to do with JCE security extensions and isn't really relevant to my question. I've found that these library files tend to get overwritten by apt when it later updates my java package. Is there a apt-friendly way of masking these specific files so apt won't touch them? Potential Solutions I'm considering just removing the write flag from the files, though I'm expecting this will cause apt to spew its guts everywhere when it later tries to overwrite them? Perhaps there's a java custom library directory I don't know of, where I can park my files and they'll be loaded instead of the package's defaults? The last-resort option I'm considering is writing a cron job to periodically replace the files with my versions. I hate this option.

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• What is testable code?

  - by Michael Freidgeim

  We are improving quality of code and trying to develop more unit tests. The question that developers asked  was  "How to make code testable ?"  From http://openmymind.net/2010/8/17/Write-testable-code-even-if-you-dont-write-tests/ First and foremost, its loosely coupled, taking advantage of dependency injection (and auto-wiring), composition and interface-programming. Testable code is also readable - meaning it leverages single responsibility principle and Liskov substitution principle.A few practical suggestions are listed in http://misko.hevery.com/code-reviewers-guide/More recommendations are in http://googletesting.blogspot.com/2008/08/by-miko-hevery-so-you-decided-to.htmlIt is slightly too theoretical - " the trick is translating these abstract concepts into concrete decisions in your code."

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• Will mono be carried forward by upgrading to 12.04?

  - by vasa1

  I plan to upgrade from 11.10 to 12.04 when 12.04 is released. I noticed from my previous experience in upgrading from 11.04 to 11.10, that Synaptic, which was dropped in 11.10, was retained on my system presumably because I upgraded from 11.04 (which did have Synaptic by default) and didn't do a new install. Given that Synaptic was retained, my question relates to mono. According to the list here, I don't have any programs that need mono. (I've just purged Banshee.) If I don't remove mono, will it be carried forward when I upgrade to 12.04 just like Synaptic was? If the suggestion is to remove mono before the upgrade to 12.04, is sudo apt-get purge libmono* libgdiplus cli-common libglitz-glx1 libglitz1 still the recommended way to remove mono-associated material from 11.10?

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• Trim on encrypted SSD--Urandom first?

  - by cb474

  My understanding (I'm not sure I'm getting this all right) is that if one uses Trim on an encrypted SSD, it defeats some of the security benefits, because the drive will write zeros to empty space (as files are deleted). See: http://www.askubuntu.com/questions/115823/trim-on-an-encrypted-ssd And: http://asalor.blogspot.com/2011/08/trim-dm-crypt-problems.html My question is: From the perspective of the performance of the SSD and the functioning of Trim, would it therefore be better to simply zero out the SSD, before setting up an encrypted system, rather than writing random data to the drive, with urandom, as one usually does? Would this basically leave one with the same level of security anyway? And more importantly, would it better enable the Trim functionality to work as intended, with the encrypted SSD?

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• Une faille exploitable dans SharePoint est en train d'être colmatée par Microsoft, elle ne touche pa

  Patch en cours pour une faille exploitable de SharePoint Qui ne touche pas l'édition 2010 Microsoft est en train de mettre les bouchées doubles pour colmater une faille découverte dans SharePoint. Une alerte de sécurité vient d'ailleurs d'être publiée pour mettre en garde les utilisateurs de l'outil de collaboration contre une possible exploitation d'une faille zero-day. Le code de l'exploit en question aurait en effet été diffusé sur Internet.. Cette faille ne concerne cependant pas SharePoint 2010. Seuls Windows SharePoint Services 3.0 et SharePoint Server 2007 seraient touchés. En attendant la sortie effective d'un patch, Microsoft décrit une solut...

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• UI Design Patterns : Are you developing a Fusion Apps extension, an ADF or Webcenter App?

  - by asantaga

  A big question I get asked when speaking to partners who are developing Oracle ADF, or Webcenter, Apps is how to make it look nice.. Some of the big SIs ask me, "Do we have any design patterns/guidelines we can use?". .. Alas website design is a very personal thing and each website will have different requirements and needs, however I am now pleased to say we've just launched "Oracle Fusion Applications Design Patterns" website.   The website is the result of many years of Oracle R&D into user interface design for Fusion applications and features a really cool web app which allows you to visualise the UI components in action. Although many of the design patterns are related to ADF , its worth noting that ADF took its lead from Oracle Fusion Applications User Interface needs - not the other way around, its just taken us a while to publish these. Coupled together with the dashboard patterns this makes are really cool extra asset for your kit bag Design Patterns Oracle dashboard patterns and guidelines Usable Apps.oracle.com Enjoy

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• Could someone help me understand SQL TDE Database encryption?

  - by SLC

  I don't quite follow how it works. According to the MSDN Article there is a big hierarchy of keys protecting other keys and passwords. At some point the database is encrypted. You query the database which is encrypted, and it works seamlessly. If you're able to simply connect to the database as normal and not have to worry about any of the encryption from a developer point of view, how exactly is it secure? Surely anyone can simply connect and do select * from x and the data is revealed. Sorry my question is a bit scattered, I am just very confused by the article.

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• Water Simulation in LIBGDX [on hold]

  - by Noah Huppert

  I am doing some R&D for a game and am now tackling the topic of water. The goal Make water that can flow. Aka you can have an origin point that water shoots out from or a downhill slope. Make it so water splashes, so when an object hits the water there is a splash. Aka: Actual physics water sim. The current way I know how to do it I know how to create a shader that makes an object look like its water by making waves. Combined with that you can check to see if an object is colliding and apply an upwards force to simulate buoyancy. What is wrong with that way The water does not flow No splashes Possible solutions Have particles that are fairly large that interact with each other to simulate water Possible drawbacks Performance. Question: Is there a better way to do water or is using particles as described the only way?

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• Apple New Year alarm bug cause

  - by StasM

  As many people know, Apple has a bug in their iPhone that prevented alarms from going off at 1st and 2nd of January 2011. What is strange is how that bug might happen - i.e., as far as I know this bug happens in all timezones and nobody is switching off DST on Jan 1st, so it's not timezone or DST-related. Also, Jan 1st seems to be nothing special as a UNIX timestamp, so something like sign change or integer overflow can't be the reason. It is highly improbably that alarm code has something like if(date == JANUARY_1_2011 || date == JANUARY_2_2011) turn_alarms_off(); - that would be a sabotage and not a bug. So the question is - could you imagine and describe a bug that would cause the alarm to fail exactly at Jan 1st and 2nd everywhere while letting it work otherwise, without specifically referring to those exact dates? Of course, if somebody knows the real cause, that would be a definite answer, but if nobody knows it - I think it is interesting to think what might be the cause of such strange bug.

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• Is there a modern (eg NoSQL) web analytics solution based on log files?

  - by Martin

  I have been using Awstats for many years to process my log files. But I am missing many possibilities (like cross-domain reports) and I hate being stuck with extra fields I created years ago. Anyway, I am not going to continue to use this script. Is there a modern apache logs analytics solution based on modern storage technologies like NoSQL or at least somehow ready to cope with large datasets efficiently? I am primarily looking for something that generates nice sortable and searchable outputs with the focus on web analytics, before having to write my own frontends. (so graylog2 is not an option) This question is purely about log file based solutions.

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• Render graphics using Doubles in Graphics2D

  - by thedeadlybutter

  Currently, I have a JFrame for my game to render in, and I'm using Graphics2D for drawing (The games graphics are fairly simple 2D sprites). However, my delta variable is a double, and all of the Graphics 2D methods (And Grpahics) use int. I tried to type cast the delta to an int, but it just rounds down to 0. So my question is, how can I render graphics using Graphics2D in Java with coordinates that are doubles. Can I convert it to work with Graphics2D if there is no built in way? Or, is there a graphics library that can support doubles for coordinates?

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• How do I customize the Unity launcher for different workspaces?

  - by Srijan

  How do I customize the Unity launcher for different workspaces for Ubuntu 12.04? I am using x86-64 bit architecture running solely Ubuntu 12.04. I have searched in the community for possible aspects of this question as per the link Different Launchers for Different Workspaces? but the links provided in this doesn't address my issue as the links are outdated and it does not exactly say how to customize the launcher. Besides the environment is now buzzing with unity 5.4 and also Ubuntu 12.10. So can someone please help me to customize the unity launcher for Ubuntu 12.04 for different workspaces? Thanks a zillion in advance. Is there any features enabling customization of launcher in different workspaces in unity 5.4?

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