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• Uninstall Ubuntu

  - by Geordie Dave

  So recently I downloaded the most recent ubuntu iso for installation alongside my Windows 8.1. Everything went really smoothly with no errors or hiccups during installation. The only thing is I've decided that I just wanna go back to using Windows 8.1. I haven't a clue how to uninstall ubuntu now. I was going to use the windows installer but there wasn't one available, however fund this latest iso which provided a much improved installer which as I said made things go a lot better. Has anyone any idea how to uninstall it as I tried the DVD I burnt the iso to and all it gives me the option of is reinstalling ubuntu, there is no option to uninstall once I've installed. Any ideas anyone?

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• Upgraded Ubuntu 12.04 -> 12.10 and Drupal 7 site now get error

  - by Paul B

  I do all my Drupal 7 webdev and today I took advantage to upgrade my local WebDev box O/S to Ubuntu 12.10 from 12.04 and now I get the following errors for all my D7 projects on my localhost WebDev box (Ubuntu 12.10) It was all fine pre Ubuntu 12.04: Error The website encountered an unexpected error. Please try again later. Error message PDOException: SQLSTATE[42000]: Syntax error or access violation: 1286 Unknown storage engine 'InnoDB': SELECT expire, value FROM {semaphore} WHERE name = :name; Array ( [:name] => variable_init ) in lock_may_be_available() (line 167 of /var/www/jobsdaily/includes/lock.inc). A quick research and look into the phpmyadmin (3.4.11.1) and it seems InnoDB is an issue and when I click on a table to see data I get #1286 - Unknown storage engine 'InnoDB'. I have all my D7 sql backed up, but don't really want to go down the whole 'import' route, since it's 10 months work! Anyone had this issues and can anyone suggest fix ideas? Thanks

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• What would you change about C# if you could?

  - by Casebash

  Assume that your objectives are the same as for C#. I don't want an answer like "I'd write Python instead". I'm only interested in changes in the language itself - not in the standard library. Perhaps this would be interesting to discuss, but as it is shared between many languages it would be better to discuss this in another question instead. Please post a single idea per answer; if you want to post several ideas, post several separate answers. Thanks!

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• Programming languages similar to ActionScript 3 / EcmaScript based

  - by Juanlu001

  I almost learned programming and OOP basic concepts with ActionScript 3 on the Flash Platform years ago. Some time has passed since then; I'm not a professional programmer, but I have written code in PHP, Fortran, and now Python. But, lately, I have missed ActionScript 3 OOP implementation, static typing and, I confess, curly braces. As Flash platform is slowly dying nowadays, I'm looking for an Open Sourced programming language similar to ActionScript 3. I've read about Java, which is the most similar one I found, but actually is the only one it doesn't interest me (I started to hate it after bad experiences with web applets). Any ideas? Edit: Added EcmaScript to the title and the tags; I think that is what I am looking for.

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• How can I reduce the time taken to login by postponing/delaying some startup applications?

  - by koushik

  I have setup some applications to startup on each login (e.g., redshift-gtk, gtg) automatically but after adding these to startup applications (System -> Preferences -> Startup Applications) obviously the time taken to login has increased. Due to all this the time it takes for my panels, desktop etc to appear is too long - until which I am forced to wait. I don't need these apps to be available immediately, but it would be good if they startup eventually, meanwhile the ubuntu menu/panel is available for running other apps that I might need to. I tried using at command, with the intention of editing all startup applications to put the commands in the at queue, but this didn't work since the apps don't get the necessary environment variables (like DISPLAY). Is this what nice command is used for? Any other ideas how I can accomplish this? If possible, I would like to avoid editing the startup applications commands, since this would mean a lot of effort to replicate on other machines I use.

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• trying live-usb 12.04.1 image on an old desktop

  - by 213441265152351

  I am trying to load Ubuntu 12.04.1 32-bit desktop image on an old desktop computer. The system shows the initial menu, but after a while, I get an error like the one in the following two screenshots (it takes a few seconds to go from one to the other in the screen): I tried to load it using the different USB ports at the back of the computer, just in case, and I get basically the same error. Find another screenshot from another try: Any ideas what might be happening? NOTES: I checked the md5sum of the iso file to be e235b63c02644e219b7bf3668f479c9e *ubuntu-12.04.1-desktop-i386.iso. I did the 'Test' on the laptop where I created the USB drive, and it loads up correctly. The desktop computer in question is an old AMD Duron 1800MHz with 512MB RAM. I ran a memtest on the computer, and all went fine.

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• Can I get enough experience to get an industry job just by reading books?

  - by MahanGM

  I've been recently working with DirectX and getting familiar with game engines, sub-systems and have done game development for the last 5 years. I have a real question for those whom have worked in larger game making companies before. How is it possible to get to into these big game creators such as Ubisoft, Infinity Ward or EA. I'm not a beginner in my field and I'm going to produce a real nice 2D platform with my team this year, which is the result of 5 years 2D game creation experience. I'm working with prepared engines such as Unity3D or Game Maker software and using .Net with C# to write many tools for our production and proceeding in my way but never had a real engine programming experience 'till now. I'm now reading good books around this topic but I wanted to know: Is it possible to become an employee in big game company by just reading books? I mean beside having an active mind and new ideas and being a solution solver.

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• How do I reset my display settings from the command line?

  - by Trevor

  I'm running 12.10 on a dell e5400 laptop and I used xrandr to get the dual monitors working that I connect through a laptop dock. I used xrandr again to switch back to the laptop display when I undocked. The problem is, after a restart, the laptop seems to want to come back up with the dual monitor configuration and the laptop screen stays blank. I can boot into single user mode but I'm not sure what to do from there to get the display settings reset. Any ideas? There's no xorg.conf file so I'm not sure where the settings are stored anymore. Thanks.

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• Windows 7 doesnt boot after installing Ubuntu 12.10 (Asus Zenbook Prime / UEFI problem)

  - by jpdus

  Today I installed Ubuntu and since then i cannot boot into Windows anymore. I used the "standard" option (didnt change any partitions manually, just entered the size) but used the UEFI-mode. At first the GRUB entries for Windows did not work at all, after reading this thead i was able to add a new Grub entry - now i can get into the "windows-loading" screen for a few seconds but then i always see some kind of bluescreen for a fraction of a second and the laptop reboots. I can get into the windows recovery partition but the only option there is to reset everything to factory settings (+erase all data). I have no idea how to get into the Windows 7 repair mode which was mentioned here (tried everything else in this thread too - no success). My boot info can be found here: http://paste.ubuntu.com/1411573/ I have no idea what went wrong (there is even an extra page for the Zenbook Prime where no installation problems are mentioned). I would appreciate any help/ideas, many thanks!

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• How do you maintain content size vs. content quality in a mobile application?

  - by PeterK

  I am developing my first Cocos2d iPhone/iPad game that includes quite a few sprites, I would need approximately 80 different. As this is for both normal and HD displays I have 2x of each sprite. I am using TexturePacker to optimize the thing. I would like to ask if there are any rules-of-thumb, tricks, ideas etc. to adjust to in regards to size of content, quality and how you maintain high-quality HD-based graphics due to its size vs. the device memory sizes? Also, is it a good idea to only have one copy of the sprites and scale it using code?

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• No sound on fresh install of 13.10

  - by Totalnon

  I installed a new copy of 13.10 today and cannot get my audio to work. Speakers test good on other devices, enabled in the BIOS, worked this morning in a Windows environment. I ran all of the available updates through apt-get. aplay -l lists my card (which tells me Ubuntu recognizes the hardware, I have been looking around the web and trying various things to no avail. Pulse folder permissions seem fine, I've reinstalled ALSA, and the card shows both digital and analog in the system settings sound section. I have tried this guide: Sound Troubleshooting Guide As well as looked through these forums under the tags sound and 13.10 Anyone have any ideas that may help me?

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• Can I import an existing member data used in old ASP to a new ASP.NET membership database? [closed]

  - by Rick Brown

  I have an old website that I designed and still maintain using old ASP that has a membership database (MS-SQL) that I built from scratch. It is a very simple database that has all the user information in one table (including login info and personal info) and then details and other odds and ends in other tables. It is WAY past time to upgrade this to .NET, especially since I need to add a Paypal payment system into it as soon as I can. I've designed several other sites with membership in .NET, but they have all been from scratch. Is there an easy way to transition from the old ASP site to a new .NET membership database without losing the data? There are hundreds of users with thousands of records relating to those users that I'd rather not lose, if possible. Any ideas on a relatively painless way to do this?

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• bxslider and sproutvideo on iPad: video is just a black box when returning to slide [on hold]

  - by hm.

  I use sproutvideo inside of bxslider. I teste it well on chrome and firefox. On the iPad I have the following issue: I have the video in the forst screen and it loads fine, the slider stops when the video is running and when i switch to another slide and come back the video is still running. On the iPad, the video starts also, but when I go to anoter slide and back, the video disappears and I only see a black box. Any ideas what can be wrong?

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• Making retro games: Any good known game architectures?

  - by A.Quiroga

  I'm trying to do a remake of Snowbros . I'm doing it using libgdx but at each time i must try to thought how things got done . For example the physics of the jump and collisions . It seams to be time perfect , but i use the deltaTime to try to aproximate the value in game . I think in this case maybe its using some calcs with processor Hz , but i don't know. Then the simple question , is there any resources of how did they programm this games? Or any idea of the simple ideas repeated each game to game in the old style retro games.

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• Learning the basics

  - by Kevin

  I am a Linux server administrator first and foremost... Having said that, I have been asked by a former high school teacher of mine to teach students a bit about programming. Like any Linux administrator, I know my fair share of Python and Bash. The problem is that I know NOTHING about the lower level stuff like "machine code" and compilation. The main purpose of this series is to teach programming, not computer science, so I don't need a graduate degree's level of knowledge for this, they will be learning Python first and foremost. However, I would like to learn enough to at least broach the subject with them, any ideas where I can learn that kind of stuff relatively quickly?

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• messed up PATH and can't login

  - by Ben Glasser

  I was screwing around and trying to add some environment variables to my path. I must have made a type or something because once I logged out, I could not lob back in. I know I'm not on caps lock or anything and in fact if I type the wrong password I am informed of this. However, when I type the correct password the desktop starts to load and then loops back to the login prompt. There also no other users on the machine for me to log in as other than guest which does not have the right permissions for me to fix things. Any ideas on where to go from here?

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• To mount NAS on a Laptop?

  - by deckoff

  So, I bought a NAS, which I configured successfully in /etc/fstab, on mu Kubuntu 10.10 Thinkpad x40. It works just fine when I am at home. A few days I went out with my laptop and the problem is, that when not at home, both suspend and hibernate functions seem forever to work. I commented out the entry on fstab and the laptop started to work as expected. I played with autofs, but it seems just dies at one moment and I cannot access anything. It works for some time, and then just goes off. Is there any consistent way, to make my laptop access the drive when at home and work OK when away? Probably a script that runs at startup, checks if the mount is there and mounts it if available... or a script that umount the drive at suspend|hibernate and loads it back at startup. Any useful ideas?

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• Is there a purpose for using pull requests on my own repo if I am the only developper?

  - by marco-fiset

  So I got started with a real project of mine on GitHub and things are going pretty well and ideas are flowing a lot faster than I initially thought. In order to keep things organized, I setup some branches so I can develop different features separatly. Now when I push my branch to GitHub, I have that section where I have two buttons : Pull Request and Compare with the name of the branch I recently pushed to. I understand the purpose of the Compare button but I don't get why I would want to create a pull request on my own repo. Can someone explain me why I would do that? Is it useful to make pull request on my own repo if I am the only developper?

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• Ubuntu 12.04 Freezes after removing the HDMI cable or changing settings

  - by euDennis

  I'm using an fresh install of Ubuntu 12.04 and I'm having some problems with HDMI. I usually use it with my TV, but since the update isn't working any more. Sometimes in 11.10 I had to execute a script to get the video and sound to work in HDMI, but it was OK. Since the update, when I connect the HDMI cable, it works, but if I make any change in the display settings (like resolution, monitor position, etc,) it freezes. And if I don't change anything, it's working in both monitors, but when I remove the cable, it freezes and even the ctrl+alt+f2 shortcut works. Any ideas for fixing this? I Googled and only found many people having problems, usually with sound.

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• Tic-Tac-Toe game AI

  - by David Jones

  I'm looking into creating a simple tic tac toe/noughts and crosses game in Actionscript3 and am trying to understand the ideas behind the AI used in a game like this. I've seen some simplistic examples online but from what I've read a game tree or something like minimax is the best way to go about this. Can anyone help explain or reference any good examples of this? I've seen that there is a library called as3ds - data structures for game developers which has a number of classes that might help tie this together? Any info/examples or help is much appreciated.

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• Choppy window movement in Gnome 3.4 on Ubuntu 12.04

  - by mjrussell

  I have been using Gnome 3.2 since Ubuntu 11.10 was released and it has always been perfectly smooth and performed extremely well, much better than Unity. After doing a clean installation of Ubuntu 12.04, Gnome 3.4 performs less well. If just one window of a relatively simple application, such as Gnome Terminal, is opened and moved around, the movement is sometimes very choppy, but the rest of the time it's perfectly smooth. The times when it's choppy seem to be when part of the window goes off the bottom or right side of the screen. Also, if there are multiple windows open, it is almost always choppy. These facts suggest to me that it's something to do with the compositor. Unity works perfectly smoothly. Memory usage is only at about 500-600MB, out of 3GB, even with a few things open. The graphics card is the on-board Intel graphics on the Core i5 M450. Does anyone have any ideas what might be causing this problem? Thanks

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• Automatically move Xubuntu panel to external monitor

  - by user1291235

  I am using xubuntu 13.04 with a dualmonitor setup. (external monitor as primary, laptop als secondary) I am using xandr to makeup my monitorsetup. However I recognized that the xubuntu panel on the top by default will always be placed on the laptop monitor. I know that i can move the panel via the panel preferences. This works. But i want to somehow either let it move automatically to the right monitor (the primary one) or to move it with a terminal command (so i can create a script which takes care of moving the panel to the primary monitor)... any ideas?

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• "Super meatboy"-ish replay

  - by Ron

  I'm making a platformer built from mini-levels - and I want to create a sort of a replay of all the player tries that the player did for the level. My question is - what is the best way to record the player's actions in-game, so that I could replay them later when he finishes the level. I thought about recording only the player's input and replay them later on, each on a clone of the player. The problem I have with this is with dynamic obstacles (that could be moved around) - if one clone moves them, it throws the simulation off for the rest of the clones. So then I thought about recording every frame the X/Y of the player, and then just replay it - but that seems it could cause a major memory leak and very ineffective. So - does anyone have any ideas? :)

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• Missed the Call for Papers Deadline? Don't Despair!

  - by [email protected]

  Now, You've Got a Second Chance You were skiing in the Alps. Your dog ate your paper. You were locked in a time capsule that opened March 22 (one day after the Call for Papers deadline). No matter what your reason was for missing the deadline, you can still have a say in what's covered at Oracle OpenWorld 2010 and Oracle Develop 2010. We've just brought back the Suggest a Session program. And that means you've got a second chance to suggest presentations for Oracle OpenWorld and Oracle Develop 2010 and to share your ideas, experiences, and accomplishments with Oracle customers, developers, and partners. So hang up your skis and show us what you've got. The deadline for submission is June 20. Get all the information on the Suggest a Session process, timeline, and guidelines.

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• I am trying to delete a string from list then write it back to a file [closed]

  - by bradb

  def mang (grocerystock): mangchoice=int(input("What would you like to do? \n 1):Add a new product to the list? \n 2): Remove a product from the list? \n 3: Change the quantity of an item \n 4): Change the price of an item \n 5): View items and their quantity and price")) if mangchoice == 1: infile=open("grocery_stock.txt", 'a') name=input("Please enter the new product's name would you like to add:") quant=int(input("Please enter the new product's quantity")) price=float(input("Please enter the new product's price")) grocerystock[0]=name grocerystock[1]=quant grocerystock[2]=price gS=str(grocerystock) gs=gS.strip("[',']") infile.write(gs + '\n') if mangchoice == 2: namedelete=input("what item would you like to remove") a=open("grocery_stock.txt", 'r') data_list= a.readlines() a.close() print (data_list) del data_list[namedelete] b= open ("grocery_stock.txt", 'w') b.writelines(data_list) b.close() def intro(): choice=(int(input("Would you like to go to Managerial mode or Shop mode?(press 1 for Managerial and 2 for shop mode, to quit press 3)"))) if choice == 1: print ('lets go') mang(grocerystock) elif choice == 0 : print ('loser') grocerystock= ["","",""] intro() This is all the code i have written so far any ideas? The code that i am trying to delte is under if mangchoice == 2:

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