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• Video player with good subtitle rendering

  - by Oxwivi

  Is there any way to improve the subtitle rendering capabilities of Totem? The subtitles positioning seems to be hard-coded in it and even though the style is user-customizable, it does not confirm to the formatting in subtitle data. In some scenes where writings appear, the subtitles are supposed to appear next to those along with what is being said at that moment. However, on those scenes the translations of text onscreen appears on the default subtitle area with nothing about the things being said. The correct rendering are according to the open-source Windows video player, Media Player Classic - Home Cinema. There are no Linux port as far as I'm aware. If VLC's subtitle support is the same as in Windows, it won't work for me, period. Please suggest anyway to improve subtitle rendering in Totem, other video players, or a way to port MPC-HC.

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• How can I get a DisplayLink USB monitor under Ubuntu (any recent version) ?

  - by jfmessier

  I have a DisplayLink-based external USB monitor, which has both power and data over USB, and seems to work perfectly under Windows 7, but only can display a text console under Ubuntu 10.10, and that I can only use when I am actually switched to it. So the only Use I can have so far is to have some text-based monitoring or console that I can watch while working on the graphic display. I know there are some development done for DisplayLink, but I never could get it to actually run properly. Yes, I tried the detailed setup described in other posts, but they did not work, and instead crashed my X that I had to restore. Merci :-)

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• Calculate the intersection depth between a rectangle and a right triangle

  - by Celarix

  all. I'm working on a 2D platformer built in C#/XNA, and I'm having a lot of problems calculating the intersection depth between a standard rectangle (used for sprites) and a right triangle (used for sloping tiles). Ideally, the rectangle will collide with the solid edges of the triangle, and its bottom-center point will collide with the sloped edge. I've been fighting with this for a couple of days now, and I can't make sense of it. So far, the method detects intersections (somewhat), but it reports wildly wrong depths. How does one properly calculate the depth? Is there something I'm missing? Thanks!

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• Ipython and Matplotlib in Ubuntu 13.10

  - by LuizAngioletti

  I've recently updated my Ubuntu to the 13.10 version. To my surprise, Ipython and Matplotlib are available only in versions prior to those I had in my previous 12.04 LTS install. When with the 12.04, I had the Julian Taylor PPA set up in my repositories, and that's why (I think) I had most up-to-date versions from both packages. The versions currently in 13.10 are: Matplotlib: 1.2.1 (http://matplotlib.org/index.html, most current version is 1.3.1) Ipython: 0.13.2 (http://ipython.org, most current version is 1.1.0 – September 2013) Is there any PPA available for the 13.10? The JTaylor ppa covers only as far as 12.10 (Quantal, link not available due to reputation rank in stack exchange) Should I install those packages outside apt? Isn't that troublesome?

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• Dynamic body implementation

  - by ArturoVM

  I am writing a 2D game where one of the characters has some very particular requirements. This character is a body with no particular shape (similar to a fluid, but not so much), it has to be able to grow and shrink (as in actually growing, not just scaling), and it has to have collision detection (even if it's basic). Because of this requirements, it obviously can't be based on a sprite, so direct rendering of the shape should be the logical thing to do. I assume this is no easy task, but I just couldn't find a good physics engine that covers these requirements (or at least no tutorial on how to do it; I particularly searched for Box2D tutorials). Is there a way of doing this with Box2D, SDL, or any other physics or game engine out there? If not, what's a good place to start? I am really clueless as far as soft-body physics are concerned.

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• At what size of data does it become beneficial to move from SQL to NoSQL?

  - by wobbily_col

  As a relational database programmer (most of the time), I read articles about how relational databases don't scale, and NoSQL solutions such as MongoDB do. As most of the databases I have developed so far have been small to mid scale, I have never had a problem that hasn't been solved by some indexing, query optimization or schema redesign. What sort of size would I expect to see MySQL struggling with. How many rows? (I know this is going to depend on the application, and type of data stored. the one that got me thing was basically a genetics database, so would have one main table, with 3 or 4 lookup tables. The main table will contain amongst other things, a chromosome reference, and a position coordinate. It will likely get queried for a number of entries between two potions on a chromosome, to see what is stored there).

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• Opinion of OSCON?

  - by 16bytes

  This year I have the opportunity to travel to the conference of my choice and thus far have been looking at OSCON. For those who have attended, what is your opinion of the conference? Any tips/tricks? Any tips to effectively plan what to see/attend? Any suggestions for lesser known conferences? As a working programmer, my interest is pretty general; I want to learn more about up-and-coming tech that I may have a chance to use and/or use more effectively.

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• Sanity checks vs file sizes

  - by Richard Fabian

  In your game assets do you make room for explicit sanity checks, or do you have some generally expected bounds which you assert? I've been thinking about how we compress data and thought that it's much better to have the former, and less of the latter. If your data can exceed your normal valid ranges, but if it does it's an error, then surely that implies you're not compressing the data well enough? What do you do to find out if your data is compressed as far as it can be, and what do you use to ensure your data isn't corrupted and ensure it's an official release? EDIT I'm not interested in sanity checking the file size, but instead, how you manage your sanity checks and whether you arrange the excess size caused by the opportunity to do sanity checks by using explicit extra data, or through allowing the data enough file space (data member size) to be out of valid range and thus able to be checked merely by looking at the asset in memory after loading.

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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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• How can I delay dropbox from starting, but not disable it?

  - by jgbelacqua

  When I log into my user account on Ubuntu 10.10, there is a unsatisfying delay before my system becomes usable. Even launching a terminal, I have to wait a few seconds before the bash prompt appears. During this start-up period, the top process seems to be dropbox. I'm not sure what it's doing exactly (functionality is still fine as far as I can see), but I do know it really doesn't need to be doing it while I'm waiting for desktop to appear. (This is the standard Ubuntu with Gnome desktop, by the way.) What I would like to do is to be able to have a static or even dependency-based delay for dropbox to start. It would be nice if it waited for, e.g., 10 minutes, or for my browser tabs to load and a typing pause. Then it could churn away on file status or cache-chewing, and I would be happy. Is there a way to do this? Thanks!

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• What the different hardware temperatures listed in psensor, sensor viewer etc reffer to?

  - by cipricus

  I have installed psensor and see a list of temperatures, but listed as ”Temperature 1”, 2, 3 etc . I can only guess where the processor is: but who's who for sure? The same question stands for Sensors Viewer. I can also type sensors in Terminal but I get no more than that acpi -t gives Thermal 0: ok, 65.0 degrees C Thermal 1: ok, 37.9 degrees C Thermal 2: ok, 56.0 degrees C Thermal 3: active, 71.0 degrees C Considering psensor, I know for a fact that: - the temperature that varies most depending on the CPU use is Temp1 and it is one of the two highest - the other high temperature is Temp4 and it goes to the ceiling when using youtube/flash - Temp2 is very stable at a medium level of 50-60 degrees Celsius - Temp3 is by far the lowest and most imobile So, I guess Temp1 is the CPU temperature, and Temp4 is the GPU temperature. Temp2 and 3 must be the motherboard and the hdd. Does anybody know for sure?

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• Giant battery consumption with dual graphics solution (only i-gpu working)

  - by Noel

  I use a Laptop with Intel Core i7 SandyBridge and integrated Intel HD3000 graphics as well as a Nvidia Geforce GTS 555M. So far, I got the impression my Laptop was running with the Nvidia graphics adapter only because the fan was always running on highest speed (and loudest noise) and it was getting very hot even when doing nothing. Also the battery is empty after ~40-50 minutes (while having ~4-5 hours with Intel graphics in Win7). Since this can't be healthy I wanted to switch to the integrated graphics instead. I was fairly surprised when the System Information showed me that the as graphics adapter I use "Intel M". Why is my battery empty so fast with Ubuntu? Without using the NVIDIA graphics adapter? Summary: I DONT WANT to use the Nvidia graphics adapter (OPTIMUS), I just want the Intel solution. As I have understood, the Intel solution is running already, emptying my battery 10x as fast as Win7. What is wrong? Any ideas?

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• Netbeans shows only blank window

  - by aGr

  I am not able to launch Netbeans. When I launch it for the first time I normally get the netbeans splash screen, but after that nothing happens. When I try to launch it again, a small blank window appears. I am able to enlarge the window, but it is completely blank. Any ideas? As far as I remember this didn't come after some update/new install or whatever. Netbeans worked perfectly, but then all from the sudden...

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• Will Traffic exchange programs work in Pay per impression ad campaigns

  - by vinoth

  I'm having a technology blog with nearly 3000 visitors a day (1000 - 1300 unique visitors). I'm generating visitors through traffic exchange programs like hitleap.com, addmefast.com. Now i'm planning to go with some pay per impression programs. So far i came to know that google adsense won't allow using traffic exchange programs. Did all pay-per-impression programs will follow the same ? will i get banned using traffic exchange programs? Please reply me your suggestions, Thanks in advance. Sorry for my bad English.

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• How to make custom libraries accessible?

  - by Milen Bilyanov

  I am trying to compile and install every custom module under it's own designated folder. (ex: /myApps/myLinux/compiled_app) I had luck with python so far, where my python is compiled from source and lives in: /myApps/myLinux/python2.5 and "python2.5" - /myApps/myLinux/python2.5.6-gcc463 so I can access this python through a wrapper script that sets the right environment. The question is recently I had to compile and add something called gperf3.0.4. So now it lives: /myApps/myLinux/gperf3.0 and "gperf3.0" - /myApps/myLinux/gperf3.0.4-gcc463 The question is: How will I point to this lib if some other app needs to access it? Is it done through the LD_LIBRARY_PATH variable? Thanks.

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• Google: What does a return to PR 'Unranked' mean?

  - by UpTheCreek

  One of my sites is very new (about 3 months). When first launched it's pages had (unsurprisingly) a Google PR of 'Unranked' [From Google toolbar stats, via the firefox SearchStatus plugin]. After a few weeks these changed to PR0. Just recently I noticed that they are showing PR 'Unranked' once more in Google Toolbar. As far as I know I'm following the Google guidelines. Results for the site still seem to be showing for its keywords. What could this mean?

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• How to add a sound that an enemy AI can hear?

  - by Chris

  Given: a 2D top down game Tiles are stored just in a 2D array Every tile has a property - dampen (so bricks might be -50db, air might be -1) From this I want to add it so a sound is generated at point x1, y1 and it "ripples out". The image below kind of outlines it better. Obviously the end goal is that the AI enemy can "hear" the sound - but if a wall is blocking it, the sound doesn't travel as far. Red is the wall, which has a dampen of 50db. I think in the 3rd game tick I am confusing my maths. What would be the best way of implementing this?

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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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• 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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• Part of the launcher has been cut off, Ubuntu 12.04

  - by Tim

  After a hard drive failure on my iMac, I replaced it and installed Ubuntu. So far, I am finding it very easy to use, however there is one problem which is making it much harder. The bottom of the launcher is missing - it is 'covered' by the desktop background. This means that I cant see the trash, or bottom few icons. Even if I scroll, it doesn't show it. Any help is very much appreciated. If you send a message to [email protected], with the subject "launcher photo", I will send you an email with the photo of the missing part attached. Currently, my only fix is to enable and then disable the extra screen it thinks is there - called unknown device

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• Windows Error After Wubi Install

  - by user106563

  The initial install on my laptop was Windows 7. I installed Wubi on Sunday - the install seemed fine. I was able to log in and use both Ubuntu and Windows. On Monday I started receiving the following error in Windows: windows cannot access the specified device path or file This occurs on every link I click on - essentially rendering Windows unusable. I do not experience the same problem when Windows is started up in safe mode. I have tried numerous virus scans (Malware bytes, Avg, AdAware) and have removed various trojans etc. Windows is still unusable. Ubuntu seems fine so far. My question is, can this error be attributed to the Wubi install?

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• Any good web frameworks for asynchronous multiplayer games?

  - by Steven Stadnicki

  I'm trying to craft a site for web-based (original) board games, and my client (currently written in Actionscript, but that's highly fungible) works fine - I can play solitaire games in the client - but it has nothing to connect to. What I'm looking for is a server framework for handling accounts/authentication and game tracking: something that would let players log in, show them a list of their current games, let them invite friends to new games, let them make moves in the games they have open, etc. I'm flexible on language; obviously I'm going to have to write a lot of server code to handle the actual game logic, but that should be straightforward enough. I'm more concerned with how to handle the user (and game) DBs, though suggestions for a good server framework for communicating with the DBs (and serving up, most likely, JSON for client communications) are also welcome. Right now my leaning is towards Ruby (probably with Rails) but as far as I can determine it would be a pretty good chunk of effort to set up the necessary databases, so having something even higher-level would be really useful to me.

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• Pokemon Yellow wrap transitions

  - by Alex Koukoulas

  So I've been trying to make a pretty accurate clone of the good old Pokemon Yellow for quite some time now and one puzzling but nonetheless subtle mechanic has puzzled me. As you can see in the uploaded image there is a certain colour manipulation done in two stages after entering a wrap to another game location (such as stairs or entering a building). One easy (and sloppy) way of achieving this and the one I have been using so far is to make three copies of each image rendered on the screen all of them with their colours adjusted accordingly to match each stage of the transition. Of course after a while this becomes tremendously time consuming. So my question is does anyone know any better way of achieving this colour manipulation effect using java? Thanks in advance, Alex

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• Best choise of gui platform/framework for 3d development [closed]

  - by Miguel P

  The title pretty much says it all, so I'm developing a 3d engine for Directx 11, and it's going good so far. I started using .net forms as a GUI, but then(Of curiosity), i jumped to MFC, and the app looked great, but in my perspective, MFC is badly written, and it's too complicated, meaning that some things just took forever, while it would have taken a few seconds in .net forms. But my real question is: If i want to make an Editor for a 3d scene, where directx renders in the form( This was accomplished in .net forms), what would be the best choise of gui platform/framework? MFC,.net forms, Qt, etc....

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• HP 510 laptop doesn't suspend when I close the lid

  - by Yuri

  I have an HP 510 laptop with Ubuntu 12.04. I have all the correct settings for suspending when the lid is closed, as far as I can tell, so I think it's a problem with detecting the event. The way it "should" be detected, from what I can see, is a little hardware switch that is pushed when the lid closes. This switch manually puts off the backlight, and sends the suspend signal. All I can think is that the signal isn't being properly interpreted. Can anyone suggest a fix? Update: I tested whether the button was actually working based on the suggestion by josinalvo, and I found that in the directory /proc/acpi/button/lid/ there is no LID directory. There is, however, a C1CF folder, and in it is a state file. When using the this file instead of ID, I discovered that, no, when I close the lid, the state does not change.

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