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• How do I add a custom launcher?

  - by sayth

  I started by searching guides. I found this guide but neither of the main methods works anymore in 11.10. The first solution, I have created the desktop file, however the file location given as .gconf-> desktop-> unity-> launcher -> favourites no longer exists. I can get to /home/sayth/.gconf/desktop but there is no longer a unity folder. The second solution described right-clicking the desktop and creating a launcher. Right-clicking the desktop no longer produces a "create a launcher" option. I manually installed geany 0.21 as the one in the repo's is outdated. It's installed and working correctly, and is executing from /usr/local/bin/geany. How can I add it to the launcher?

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• How should I report this problem?

  - by Sinan Aykut

  I use Ubuntu 11.04 Alpha in daily use and yesterday I've made an upgrade (apt-get dist-upgrade) after restart, I could not access to the desktop. Just the wallpaper and cursor... I've tried to open it in safe mode, but no luck. Before sending a bug report for this problem, Id like to know some things: 1) Which logs I should consider before sending a bug report? I think this issue is related to updated X.org or Unity desktop files 2) Is there any CLI way to turn my Unity desktop back to the classic one? Thanks.

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• Unable to locate package appmenu-gtk3

  - by dre

  Yesterday I upgraded my version of Ubuntu. In stead of Gnome I now have the Unity environment. I'm not sure I like Unity better, so I'll give it a probation period to see if it's any good. What I really do not like though, is the Global menu bar. After googling I found that I had to enter: sudo apt-get remove appmenu-gtk3 appmenu-gtk appmenu-qt If I do that I get the error message: E: Unable to locate package appmenu-gtk3 Can anyone tell me what I'm doing wrong here and explain how to fix this problem?

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• Missed environment variables in Eclipse Juno

  - by hara

  I recently moved from Eclipse Indigo to Juno. I installed the IDE in my Ubuntu 12.04 by downloading the archive from here. Then I created an entry in the unity launcher for Juno as I done before for Indigo. Here is what I wrote in ~/.local/share/applications/eclipse-juno.desktop: [Desktop Entry] Type=Application Name=Eclipse Juno Comment=Eclipse Integrated Developmentm Environment Icon=~/.eclipse-juno/icon.xpm Exec=~/.eclipse-juno/eclipse -vmargs -Duser.name="my name" Terminal=false Categories=Development;IDE;Java; When I run eclipse from the unity launcher, eclipse does not see environment variables that I set in ~/.bascrc. Instead, if I run eclipse from shell, it can see all the env variables. How can I fix the problem? Thanks a lot.

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• Add Custom Launcher in 11.10

  - by sayth

  I started by searching guides. I found this guide but neither of the main methods works anymore in 11.10. The first solution, I have created the desktop file, however the file location given as .gconf-> desktop-> unity-> launcher -> favourites no longer exists. I can get to /home/sayth/.gconf/desktop but there is no longer a unity folder. The second solution described right-clicking the desktop and creating a launcher. Right-clicking the desktop no longer produces a "create a launcher" option. I manually installed geany 0.21 as the one in the repo's is outdated. It's installed and working correctly, and is executing from /usr/local/bin/geany. How can I add it to the launcher?

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• No app icons in menus

  - by Lyrositor

  I have enabled icons in menus, and most of them show up well (folder icons, file icons, save icons, etc.). But whenever an app tries to use an icon specific to itself, such as GIMP, it replaces that icon with the app icon, so that when I look at a menu in GIMP, I see most of the time just icons of GIMP's logo (that seems to be the only problem; the text is fine). I thought this was proper to GIMP, but I also noticed it happening on AbiWord. Thankfully, as I said, it's not for all icons. But it still bugs me. Why is it so? Here is a screenshot of a menu in GIMP: I am using Ubuntu 11.04 Natty Narwhal, with Unity desktop (the problem also occurs on the Classic desktop, if I remember correctly). EDIT: This does NOT occur on the Classic desktop; only in Unity.

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• Unity3d vector and matrix operations

  - by brandon

  I have the following three vectors: posA: (1,2,3) normal: (0,1,0) offset: (2,3,1) I want to get the vector representing the position which is offset in the direction of the normal from posA. I know how to do this by cheating (not using matrix operations): Vector3 result = new Vector3(posA.x + normal.x*offset.x posA.y + normal.y*offset.y, posA.z + normal.z*offset.z); I know how to do this mathematically Note: [] indicates a column vector, {} indicates a row vector result = [1,2,3] + {2,3,1}*{[0,0,0],[0,1,0],[0,0,0]} What I don't know is which is better to use and if it's the latter how do I do this in unity? I only know of 4x4 matrices in unity. I don't like the first option because you are instantiating a new vector instead of just modifying the original. Suggestions? Note: by asking which is better, I am asking for a quantifiable reason, not just a preference.

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• how can i give other drives and partitions short, meaningful names (in nautilus)?

  - by honestann

  I have 4 disk drives in my 64-bit ubuntu 12.04 LTS computer at the moment, plus one external USB drive. In nautilus and unity the external drive has a nice short descriptive name "mcat", but all partitions on the 4 internal drives are displayed as a size (834GB filesystem) or a huge 32-character string form of a GUID: I'm guessing the external drive is nice, short, sweet and readable because that drive may have no partitions (well, just one I guess) and that name may be the drive label, whereas partitions usually don't have names. That may explain my problem, but doesn't solve it. Is there some way to give reasonable names to these partitions in nautilus and unity?

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• Is it normal to not have desktop effects after installing on an Asus N53S?

  - by Fabzter

  I've just installed 11.10 and so far so great, except I just discovered (after looking at another installation) I'm missing some effects. First of all, I am using unity 3d (I chose ubuntu at the login menu), and have already the correct nvidia drivers. Yet, my launcher is the same from unity 2d, the same as the app switcher, and when dragging windows to screen corners, they don't get grabbed. This "error" was present since the begining, so I was not able to detect it. Please help, I want to have an ubuntu experience as nice as everyone else. EDIT 1: I'm using an Asus N53S. My graphic card is Nvidia geforce GT540M. It says cuda, if that matters.

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• Ouya build experiencing odd graphical artifacts, screen half black

  - by Neeko

  I'm witnessing very odd graphical artifacts when I run my Unity game on Ouya. After the Unity splash screen, the game loads with the screen half black. This seemingly has started occurring out of the blue. It also doesn't occur in the editor or the standalone build, only on Ouya. I can't think of a single reason why this would be happening. If I open the Ouya menu screen and close it, the game returns to normal; somewhat, as there may be some artifacts lingering but the screen isn't half black like in the screen shot above. I know there's not much to go off of, but any insight into why this may be happening is greatly appreciated.

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• Long delays in Unity3D substance generation

  - by Josh Buhler

  Currently working on an iOS/Android project in Unity3d, and we're seeing some incredibly long times for generating substances between testing runs. We can run the game, but once we shut down the playback, Unity begins to re-import all off the substances built using Substance Designer. As we've got a lot of these in our game, it's starting to lead to 5 minute delays between testing runs just to test a small change. Any suggestions or parameters we should check that could possibly prevent Unity from needing to regenerate these substances every time? Shouldn't it be caching these things somewhere?

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• Maximum number of controllers Unity3D can handle

  - by N0xus

  I've been trying to find out the maximum amount of xbox controller Unity3D can handle on one editor. I know through networking, Unity is capable of having as many people as your hardware can handle. But I want to avoid networking as much as possible. Thus, on a single computer, and in a single screen (think Bomberman and Super Smash Brothers) how many xbox controllers can Unity3D support? I have done work in XNA and remember that only being capable of support 4, but for the life of me, I can't find any information that tells me how many Unity can support.

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• Unity3D: default parameters in C# script

  - by Heisenbug

  Accordingly to this thread, it seems that default parameters aren't supported by C# script in Unity3D environment. Declaring an optional parameter in a C# scirpt makes Mono Ide complaint about it: void Foo(int first, int second = 10) // this line is marked as wrong inside Mono IDE Anyway if I ignore the error message of Mono and run the script in Unity, it works without notify any error inside Unity Console. Could anyone clarify a little bit this issue? Particularly: Are default parameters allowed inside C# scripts? If yes, are they supported by all platforms? Why Mono complains about them if the actually works?

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• Align tetrahedrons

  - by thedeadlybutter

  I'm currently generating tetrahedron meshes in Unity When a player clicks the side of a mesh, a new one spawns aligned with it, like this. I'm not sure how nor can I find any information on implementing a tetra hedron grid. I tried playing around with the vertices until I realized I need to adjust position & rotation. Any ideas? EDIT: To be clear, the second image was manually placed objects in the Unity Editor. I'm looking to make an algorithm that places the meshes correctly.

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• Linux Distributive With Global Menu and UbuntuOne For Netbook

  - by Draco Ater

  I like very much global menu in previous versions of Ubuntu. But Unity is too slow for my Eee PC. So now I am looking for some alternative Desktop Environments or Distributions where there is global menu available. But at the same time there should be UbuntuOne service working too, as I use it pretty often. Could you, please, suggest what should I try out? I also use keyboard shortcuts very much and so I guess they should be configurable, and try not to use touchpad at all. So big icons like in gnome-shell and Unity are not a good option.

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• Algorithm for creating spheres?

  - by Dan the Man

  Does anyone have an algorithm for creating a sphere proceduraly with la amount of latitude lines, lo amount of longitude lines, and a radius of r? I need it to work with Unity, so the vertex positions need to be defined and then, the triangles defined via indexes (more info). EDIT I managed to get the code working in unity. But I think I might have done something wrong. When I turn up the detailLevel, All it does is add more vertices and polygons without moving them around. Did I forget something?

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• No app icons in menus

  - by Lyrositor

  I have enabled icons in menus, and most of them show up well (folder icons, file icons, save icons, etc.). But whenever an app tries to use an icon specific to itself, such as GIMP, it replaces that icon with the app icon, so that when I look at a menu in GIMP, I see most of the time just icons of GIMP's logo (that seems to be the only problem; the text is fine). I thought this was proper to GIMP, but I also noticed it happening on AbiWord. Thankfully, as I said, it's not for all icons. But it still bugs me. Why is it so? Here is a screenshot of a menu in GIMP: I am using Ubuntu 11.04 Natty Narwhal, with Unity desktop (the problem also occurs on the Classic desktop, if I remember correctly). EDIT: This does NOT occur on the Classic desktop; only in Unity.

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• gnome-shell, gnome 3, unity, cinnamon, mate confusion

  - by Bryan

  I am thinking about adding something besides unity into my ubuntu 12.04. My questions are this: -If I add cinnamon, mate, gnome2/3, could I still call it it Ubuntu, or would it be Mint? -Why not just add Mint instead of cinnamon, or mate, into Ubuntu? -Or is Mint just those at the core, and not the other way around? -I had terrible battery drain using Mint. Something was wrong with the kernel with my laptop type. If I add cinnamon, would I get that battery drain again? -And lastly, would I be able to get that awesome HUD if I add the other things? I realize these questions are a bit confusing, or at least they are for me.

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• Where to start studying for developing ubuntu?

  - by Mad-scientist

  Hi am Computer Science student currently in college and very interested in developing open source software especially ubuntu.Is there a one stop go-to place for reading about developing ubuntu. For example I scoured through the official tutorial and documentation of Python and I was good to go.I could write useful applications. Is there any equivalent for Ubuntu or unity? I tried downloading the alpha 2,put kept crashing every 5 minute. I was told in IRC,it was due to some Xorg stack change. Now I cant even look at new Unity,let alone help develop it. Any help or guidance appreciated.

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• What frameworks are available for cross device 2d game development?

  - by kim3er

  Hi, I'm about to embark on a 2D gaming project. Initially, I'll be targeting iPhone and Facebook, but would like to expand the rollout to include Android (and possibly Windows Phone) in a future phase. Flash and Unity seem to be the most likely suspects, but is one better than the other? Are there pros/cons that may not be obvious at first glance? Are there frameworks that I have not considered? I am primarily a .NET developer, so the Unity C# integration is appealling. But I also have experience with AS3, JavaScript and Objective-C. Rich

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• How can I change the wallpaper using a Python script?

  - by furtelwart

  I want to change my wallpaper in Ubuntu 11.10 (with Unity) in a small Python script. I found the possibility to change it via the gconf-editor in /desktop/gnome/background/picture_filename. With python-gconf, I'm able to change the necessary values. Apparently, the gconf string is not read out. If I change it (either via a script or via gconf-editor), the wallpaper remains and in the menu of "Change wallpaper", the old wallpaper is shown. How am I able to change the wallpaper for Unity via a Python script? The following code does work. Apparently, the gsettings are only applied, if some Gtk code is executed. #!/usr/bin/python # -*- coding: utf-8 -*- from gi.repository import Gtk, Gio class BackgroundChanger(): SCHEMA = 'org.gnome.desktop.background' KEY = 'picture-uri' def change_background(self, filename): gsettings = Gio.Settings.new(self.SCHEMA) print(gsettings.get_string(self.KEY)) print(gsettings.set_string(self.KEY, "file://" + filename)) Gtk.Window() print(gsettings.get_string(self.KEY)) if __name__ == "__main__": BackgroundChanger().change_background("/home/user/existing.jpg")

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• One of my user accounts logs in without desktop environment

  - by Bill Cheatham

  When I log in to my main user account on Ubuntu 11.10 ,the desktop environment (unity bar, clock, volume control, etc.) is not there. All I have is the desktop background with a menu bar across the top which appears to be for nautilus (options like File-New folder). My other accounts log in like normal. I have recently followed these instructions to give my main user account access to an OSX partition, but I think I have logged in successfully since then. I am able to get a terminal by pressing ctrl+alt+t, but when I typed unity the whole thing crashed. Is there anything I can do to fix this? I have a separate administrator account I can use if needed.

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• Unity works on my PC but not on the Server. What did I miss?

  - by Erik France

  I have a web service using Microsoft Unity to hook the pieces together.  It all works fine on my PC but when I put it on the web server, I receive this error message: System.ServiceModel.FaultException`1[System.ServiceModel.ExceptionDetail]: The value of the property 'type' cannot be parsed. The error is: Method 'GetClaimsForUser' in type 'WebService.Implementation.ClaimsRetriever' from assembly 'WebService.Implementation, Version=1.0.0.0, Culture=neutral, PublicKeyToken=62cac0f1a908971a' does not have an implementation. If I look at the web.config, I see the following: <unity>     <typeAliases>       <typeAlias alias="ITokenGenerator" type="WebService.Interfaces.ITokenGenerator, WebService.Interfaces" />       <typeAlias alias="TokenGenerator" type="WebService.Implementation.TokenGenerator, WebService.Implementation" />       <typeAlias alias="IClaimsRetriever" type="WebService.Interfaces.IClaimsRetriever, WebService.Interfaces" />       <typeAlias alias="ClaimsRetriever" type="WebService.Implementation.ClaimsRetriever, WebService.Implementation" />       <typeAlias alias="TokenGeneratorSettings" type="WebService.Implementation.TokenGeneratorSettings, WebService.Implementation" />       <typeAlias alias="String" type="System.String, mscorlib" />     </typeAliases>     <containers>       <container>         <types>           <type type="ITokenGenerator" mapTo="TokenGenerator">             <typeConfig extensionType="Microsoft.Practices.Unity.Configuration.TypeInjectionElement, Microsoft.Practices.Unity.Configuration">               <constructor>                 <param name="retriever" parameterType="IClaimsRetriever">                   <dependency />                 </param>                 <param name="settings" parameterType="TokenGeneratorSettings">                   <dependency />                 </param>               </constructor>             </typeConfig>           </type>           <type type="IClaimsRetriever" mapTo="ClaimsRetriever">             <typeConfig extensionType="Microsoft.Practices.Unity.Configuration.TypeInjectionElement, Microsoft.Practices.Unity.Configuration">               <constructor>                 <param name="connectionStringName" parameterType="String">                   <value value="devDatabase" type="String" />                 </param>               </constructor>             </typeConfig>           </type>         </types>       </container>     </containers>   </unity> I have another web service, using an almost identical config running on the web server.  But this new web service will not run. Any ideas on what I have not told Unity to do?  Or maybe what I told Unity to do incorrectly?

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• The underlying mechanism in 'yield return www' of Unity3D Game Engine

  - by thyandrecardoso

  In the Unity3D game engine, a common code sequence for getting remote data is this: WWW www = new WWW("http://remote.com/data/location/with/texture.png"); yield return www; What is the underlying mechanism here? I know we use the yield mechanism in order to allow the next frame to be processed, while the download is being completed. But what is going on under the hood when we do the yield return www ? What method is being called (if any, on the WWW class)? Is Unity using threads? Is the "upper" Unity layer getting hold of www instance and doing something?

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• Unity won't load in Ubuntu 12.10

  - by Nigel

  I just upgraded Ubuntu last night to 12.10 from 12.04. When I rebooted like it asked, everything seemed fine, except one of my monitors had a white screen, and I could not use it. After some tweaking in the AMD Catalyst center, I got it to work, but now Unity wont load, and the bar up top wont load either. I am in suspicion that it a problem with Compiz, but might be completely wrong. Any tips on getting this to work? I am also kind of new at Linux, but I could open a terminal and get Opera open for web browsing, but it is really choppy and slow.

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