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• Upgrading from 11.10- to 12.04 Hangs at "mysql: restarting..."

  - by Mark

  I'm trying to upgrade from Ubuntu Server 11.10 to 12.04 using Update Manager. I figured out that I had to click the arrow next to 'Terminal' and select OK a couple times. Now it's supposed to be "Installing the upgrades" but it's frozen trying to restart mysql for the second time mysql: restarting.... Apache2, atd and cups were all restarted twice after "Restarting services possibly affected by the upgrade". It's been stuck here for nearly an hour. I read here about killing processes, but I can't get a terminal window to open. EDIT: I don't know if this matters but there are 6 occurrences in the Distrobution Upgrade window that say: debconf: unable to initialize frontend: Gnome debconf: (Unable to load Gtk -- is libgtk2-perl installed?) debconf: falling back to frontend: Dialog I should have left the server alone and never run apt-get install ubuntu-desktop yesterday. I would really appreciate any suggestions. Thanks, Mark

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• Error installing Windows7 64 bits on VirtualBox

  - by MetaDark

  I am trying to set up Windows in Virtual Box, so I don't need to reboot in the rare occasion that I actually need it. The problem is, Virtual Box doesn't preform any errors when I insert the 32bit installation CD but when I try to use the 64bit installation; What!? I am already using the installation disc! I've checked my BIOS to see if I have SVM (AMD's version of VT) disabled and all I see is "Enabled" I have a K9N6PGM2-V2 motherboard A Triple Core AMD Athlon II A Nvdia NForce 430 integrated graphics card 4GB of RAM An 80GB IDE And a 1TB SATA I don't think the last three specifications matter but just in case XP I am pretty sure the CD isn't broken ( I am going to make sure in just a moment ), what could be the cause to this problem? Edit: The 64bit installation CD is not broken, but I found out when trying to install from the 32bit version that it's trying to upgrade, not preform a fresh install - Odd.

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• Broken Gnome panel after Ubuntu Update

  - by Asaf

  Like every single update on Ubuntu system, my graphical system is completely broken after updating to version 11.10 http://i.imgur.com/YIHfA.png As shown in the image, the date is in the middle of the panel, There are many icons missing (network connection icon, skype) There's no right click menu when I try to right click on the panel and many programs don't have their menus (file,edit,view... those things). How do I fix this? I have gnome-panel, I don't want Unity and I'd rather install windows 95 before I switch to it.

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• How to reset the Xorg / xserver?

  - by thomas

  xserver keeps crashing on my general user account both in unity 3d and 2d. It doesn't do it on the guest account. That's why I want to reset / rollback everything xserver related, hoping this is going to fix it. Most answers on this involve sudo dpkg-reconfigure xserver-xorg. However, this does nothing for me (generates no output) and I read in other forums, that it's deprecated. So, what's the current way to reset all xserver / xorg options; what's the alternative to sudo dpkg-reconfigure xserver-xorg ? Thanks Edit: X crashes during work, not before login or so. And the effect of a crash is, that I get thrown out of the session, not a freeze or machine crash.

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• Should data structures be integrated into the language (as in Python) or be provided in the standard library (as in Java)?

  - by Anto

  In Python, and most likely many other programming languages, common data structures can be found as an integrated part of the core language with their own dedicated syntax. If we put LISP's integrated list syntax aside, I can't think of any other languages that I know which provides some kind of data structure above the array as an integrated part of their syntax, though all of them (but C, I guess) seem to provide them in the standard library. From a language design perspective, what are your opinions on having a specific syntax for data structures in the core language? Is it a good idea, and does the purpose of the language (etc.) change how good this could be of a choice? Edit: I'm sorry for (apparently) causing some confusion about which data structures I mean. I talk about the basic and commonly used ones, but still not the most basic ones. This excludes trees (too complex, uncommon), stacks (too seldom used), arrays (too simple) but includes e.g. sets, lists and hashmaps.

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• VS 11 vs VS 2012 [closed]

  - by Alex

  I'm using Visual Studio 11 Beta at home, mainly for learning purposes. But now it's possible to download VS 2012 RC. Does it make sense to install it instead? Does it have many changes comparing with VS 11? I know that VS 11 doesn't work with Azure, was it fixed in VS 2012? EDIT: Actually I found this: What’s new in the RC since Beta, which describes changes in RC and if I decide to install it, I don't need to uninstall previous version: We’ve enabled upgrade from beta to RC, so if you’re using the same product edition (e.g. Professional, Ultimate, etc.), you do not need to uninstall the beta first. Simply run the Visual Studio 2012 RC installer, which will uninstall the right Beta bits and lay down the RC bits, all at once.

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• How to change sample text in font installer

  - by Tony Martin

  I have several Japanese fonts but do not want to install them all. I would like to preview them before installing. In icon view I can get a very rough idea of the style of the font as it shows Aa. When I open the font I am presented with a dialog box which shows a sample of the font with the sentence The quick brown fox jumped over the lazy dog. I would like to change this sample text to Japanese text to get a fuller preview of the font. Is it at all possible? I suspect I might have to edit and compile source, not something I'm very familiar with.

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• Linux repository contains latest tools for synaptic

  - by William.Ebe

  I'm using backTrack5R3. And I 've installed Synaptic as well as ubuntu Software center. Synaptic is very easy to use and gives wide range of details for the packages that I'm going to download. But the problem is it lack of lot of new files and information. Like vlc or adobe reader. The latest stable version of vlc is 2.0. but synaptic only installs, 1.1. And it don't find adobe. I would like to get new versions of them. What is the best way/source to update new files? EDIT: I mean after performing update & upgrade synaptic still contains vlc 1.0.6 which is outdated. I'm looking for a way to get new/best source.

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• Is it bad practice to pass instances through several layers?

  - by Puckl

  In my program design, I often come to the point where I have to pass object instances through several classes. For example, if I have a controller that loads an audio file, and then passes it to a player, and the player passes it to the playerRunnable, which passes it again somewhere else etc. It looks kind of bad, but I don´t know how to avoid it. Or is it OK to do this? EDIT: Maybe the player example is not the best because I could load the file later, but in other cases that does not work.

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• Dynamic Terrain Texture

  - by lgrevenl

  I've been looking at a 2D physics game called 'Hill Climb Racing' (Android and iOS) and was wondering how they went about texturing the terrain? I've had a think about it and I've come up with nothing and finding a resource on the web has proved impossible. Please help. The game mentioned uses Cocos2d. Would it be just as doable in a different environment? EDIT: I was looking at another question: Drawing large 2D sidescroller level terrain The end result is what I'm looking for, but in my mind I was thinking that there would be some way to add this effect (using small textures) to some terrain specified by vertices rather than making a very large image to match whatever is seen in the level.

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• Access secondary hard disk from Virtual Machine

  - by Frank V

  I have a fairly specific question. I had Ubuntu on my Laptop (for years). For a variety of reasons, I've had to switch to Windows but the computer has two hard drives. The main drive was reformatted and I've installed windows. The second hard drive still has the Linux system disk format (not sure on type). Obviously, windows can't access it but can I access it from a Virtual machine (VirtualBox) or will I need to load up a Live-Session to access / move the contents? Edit: If this is possible, how would one proceed to mount the disk?

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• Loud and annoying noise on login

  - by searchfgold6789

  I have a PC with Kubuntu 13.10 64-bit on it. The problem is that whenever I log in (automatic log in is enabled), there is a loud double-click noise that sounds from the speakers whether the volume is muted or not. I have two sound cards; the motherboard audio, which is disabled in the BIOS, and the Creative! Labs Sound Blaster X-Fi SB0460, which I have normal speakers plugged into. Does anyone know how to fix this? Relative lspci lines: 00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] BeaverCreek HDMI Audio [Radeon HD 6500D and 6400G-6600G series] 02:05.0 Multimedia audio controller: Creative Labs SB X-Fi Using default Phonon backend. (I am not really sure what other information to provide, but will gladly edit in anything upon request.)

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• Where can I find simple, but well-written programs to learn from?

  - by user828584

  I've tried a few times to look at the source code for various things from github or other sites, in javascript, C#, PHP, etc. I'm never able to understand the programs as a whole though. I can sort of piece together what a specific snippet of code does, but I quickly lose the context of what I'm looking at and how it fits in. I want to be able to improve, but everything I've tried learning from so far has been too big. Where can I find well-written, but not very complex source code to look at? edit: Sorry, to be more specific, I'm hoping for javascript/php/C#.

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• ~/.xinput.d folder is ignored in Ubuntu 13.04

  - by CaptSaltyJack

  It used to be that you could make a file ~/.xinput.d/en_US and put xinput commands in there, such as enabling drag lock. Now, for some reason, in 13.04 this does not work. Anyone know why this changed, and how to set these? I suppose I could just put the xinput commands in a script file and have it execute upon login. I'm just wondering why the old method stopped working. EDIT: Current file /etc/X11/xinit/xinput.d/en_US: xinput set-prop 17 316 1 xinput set-prop 17 317 350 But I've realized that for some reason, the touchpad ID changes. Right now it's 15. Also, the actual properties such as "Drag Lock" can change. So this method doesn't work.

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• LGPL License in commercial application

  - by Jacob

  I have searched around but I don't seem to be able to get a clear answer on my questions that I understand. I want to use the Xuggler library in my application, which is licensed either GPL or LGPL depending on whether I compile it myself. I don't intend to edit the library If I compile it myself and thus get a LGPL version of the library, can I use it in a commercial application without having to distribute the source code of my application? Furthermore, do I have to give my application the LGPL license as well? What other problems might using this library give me?

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• Issues with web hosting at home

  - by hari

  I want to host a small personal website at home. One basic problem I am hitting is, From inside home network, I cannot access my domain name. I have to use the local ip (something like 192.168.1.4) to access the website. This ip is the desktop which is hosting the website. Because of this mapping, I have issues setting up a simple wordpress blog on it too. How do I get past this issue? edit:0 when I try to access www.example.com (my domain) from within my home network, I get redirected to my router login. PS: 1) I am using dyndns service to map my non-static ip to my domain name. 2) My portforwarding works fine.

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• Multiplayer game communication framework for mac/ios

  - by ishaq

  (Cross post from stackoverflow) I am creating a multiplayer 2D game for Mac and iOS devices. I'll be using cocso2d for graphics/game engine, however I am largely blank on what to use for multiplayer communication. Please note that I cannot use central severs e.g. SmartFox, RedDwarf, etc since I want the players to "host" games for others and be able to play it on their LAN, VPN or my own servers. Any pointers? I checked lidgren but it's for .NET only and hence not an option for me. EDIT: just in case it wasn't clear, the messaging has to be real time hence it's probably going to be over UDP

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• Simulating Smartphones on PC with Unity

  - by Cengiz Frostclaw

  I want to make a game that depends on the phone orientation (changing shoot direction with tilt), however I need to test this on PC. So is there any tool I can use to simulate the orientation of the phone with mouse or keyboard of my PC? Something like joysticks on the screen. Thanks for any help! Edit : Thanks to @jhocking for his suggestion of Unity Remote. I, however still can accept a solution with using only PC, since I'm afraid of shortening my phone's battery life, for some reason.

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• Inspirational software for end-users written in Haskell?

  - by Lenny222

  I think great technology ist invisible. Besides the usual suspects (GHC, Xmonad, proprietary trading software) what great examples are there for end-user software written in Haskell? I think good examples are FreeArc, Hledger and "Nikki And The Robots". Do you have more examples (full blown GUI apps, small CLI tools, etc)? Edit: For example i am fascinated by Wings3D, because while written in Erlang, users can not tell that. It just works. Among Haskell's weak spots are cross-platform GUIs. There are not many GUI apps written in Haskkel in general and most of them are no easy to use, install or even compile. What are good examples to learn from how to make hard things look easy?

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• Internet stopped working after aircrack install (can still connect to my router). Suggestions?

  - by Dan

  I'm sure I did something dumb during the install for aircrack, but I have no clue what. Like I said, I can connect to my router (not trying to crack, simply logging into it), I just can't get internet access. To make this more interesting, the machine is dual booted and when I log into Windows I have zero issues. I feel like some driver may have been messed up in the process, but I'm not sure if that's a reasonable assumption or how exactly to check that. Also, can't revert to backup as there are none. Suggestions on how to trouble-shoot would be appreciated. EDIT: Hard-wiring to the wall I can get internet access on the Ubuntu side... PS- I know this is a stretch as far as fitting the Ubuntu section, but no other stackoverflow sites seemed to fit better.

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• I'm in a group but can't create or modify files

  - by dac

  I have two user accounts. Let's say one is User1 and the other is User2. Both of these accounts are in the "root" group. I made a folder with some files in it. The owner is User1 and the group is root. The permissions are set so the group "root" can create and delete files. However, when I log in as User2, I can only access files. User2 is in the "root" group for sure, and when I right-click on the folder in Nautilus, and then PropertiesPermissions, it says there that the "root" group can create and delete files. What's going on? edit: Logged out and then back in, and, I don't know why, everything works now...

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• XNA frame rate spikes in full screen mode

  - by ProgrammerAtWork

  I'm loading a simple texture and rotating it in XNA, and this works. But when I run it in full screen 1920x1080 mode I see spikes while my texture is rotating. If I run it windowed with 1920x1080 resolution, I don't get the spikes. The size of the texture does not seem to matter, I tried 512 texture size and 2048 texture size, same thing happens. Spikes in full screen, no spikes in windowed, resolution does not seem to matter, Debug or Release does not seem to do anything either. Anyone got ideas of what could be the problem? Edit: I think this problem has something to do with the vertical retrace. Set this property: _graphicsDeviceManager.SynchronizeWithVerticalRetrace = false; you'll lose vsync but it will not stutter.

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• Keyboard shortcut: Win key doesn't work for custom commands

  - by Xiè Jìléi

  It's all ok before upgraded from 10.04 to 12.04. It seems all right. In keyboard shortcut window, if I pressed Win+V, it can capture the key combination as Super+V, no problem. I've checked the output from xev utility, the left and right Win keys are translated to Super_L and Super_R correctly. I have found a workaround, though. Using gconf-editor, edit the entries /desktop/gnome/keybindings/*/binding and replace <Super> with <Mod4> for the problem bindings. However Super+... keys do work for most built-in actions such as "switch workspace", they just don't work for custom commands.

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• Some websites are not opening. What should I do? [closed]

  - by Jamal

  Some websites are not opening in my system. I am using Ubuntu 11.04. Earlier, when I was using Ubuntu 10.01, there was no such issue. I have tried Firefox as well as Chromium and I am sure the issue is not with the browser. same websites are opening perfectly with Windows. Google, Twitter and Ubuntu related websites are running perfect. Other websites like www.downrightnow.com, easy-mantra.com are not opening. Installed Wubi on windows7 (32 bit). Ubuntu 12.10 is 64 bit. Processor Intel core 2 Duo. $ cat /etc/resolv.conf <-- Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) -- DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN -- output --> nameserver 127.0.1.1

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• Entries in the resolv.conf

  - by Carsten

  I am using 12.04 and have a problem with my resolv.conf There are 2 search lines there. But I can only explain one. I would like to get the other one removed. carsten@myubuntubox:~$ cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN nameserver 127.0.0.1 search aaaa.bbb.example.net search something nameserver 1.2.3.4 nameserver 1.2.3.5 I can't explain the search aaaa.bbb.example.net Where does it come from? The last 3 lines (like I want come from /etc/resolvconf/resolv.conf.d/tail This is good. But where is the other search line coming from? In /etc/dhcp/dhclient I removed the requests for domain-name-servers, domain-search, but the lines are still in there. Should I remove the dhcp6.domain-search as well?

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