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• How do I disable the "enable/disable wireless" shortcut key on my laptop?

  - by Matthew

  On my Dell Studio XPS 16, I sometimes accidentally hit this key. Wireless becomes disabled, and hitting it again does not re-enable wireless. I have to hit it an odd number of times, then restart my computer to re-enable wireless. I can't imagine a situation in which I would want to disable wireless from my keyboard. Is it possible just disable the key all-together, so I can avoid this problem? On a related note, what package do I file the bug against? I'm happy just disabling the key, but that's really just a workaround.

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• How can I install ATI Catalyst Video driver of Ubuntu 12.04.3?

  - by Eastsun

  EDIT My computer is Thinkpad E420 with Intel HD3000 and ATI 6630m. I have reinstalled my Ubuntu12.04.3 yesterday. I had successfully installed Ubuntu and ATI Catalyst Video driver many times about half year ago following these links: How do I get AMD/Intel Hybrid Graphics drivers to work? What is the correct way to install ATI Catalyst Video Drivers (fglrx)? However, this time I have no luck with installing ATI Catalyst Video driver. I have tried version 13.4, 13.1, 12.8 of ATI Catalyst Video driver. It seemed that 13.4 doesn't support 12.04 any more, following this link , the lowest Ubuntu version supported by ATI 13.4 is 12.10 and for the reset of the ATI drivers, the kernel version and xorg version of Ubuntu 12.04.3 is too high to be supported. So, should I stay on ubuntu 12.04.1 with ATI 12.8, or there is any way to install ATI driver on Ubuntu 12.04.3?

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• Boot Failure: No default or UI configuration directive found Normal install on laptop [closed]

  - by user79920

  I have had Ubuntu on my laptop for quite a while, it's just a standard install, no partitioning off, no wierdness of any other sort, just ubuntu. Today my computer started to lag really bad so I tried to restart it, but after bios loaded I just got an error that said "ERROR: No configuration file found No DEFAULT or UI configuration directive found!" After that it had "boot:" and a cursor, like it expects me to type something. Once again, this is just a normal install on my hard drive, not a VM or booting from USB. It's Ubuntu 12.04 on a Sony Vaio VGN-SZ240P Any help is appreciated!

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• Is wikipedia a valuable resource for studying data structures? (can we call it complete?)

  - by Amir Nasr

  Can I depend on wikipedia to learn data structures fully using the list of data structures http://en.wikipedia.org/wiki/List_of_data_structures and the links they refer to? The same question for algorithms http://en.wikipedia.org/wiki/List_of_algorithm_general_topics ?... What's after learning algorithms and data structures? Specializing in a certain field of algorithms such as computer graohics, memory management...etc? or what could be the plan for mastering programming after knowing the language syntax and the background about program design and programming logic? I asked about wikipedia because i would like to find a complete resource or are least a resource which would be enough for the field of data structures instead of searching for separate articles in different places in other words an alternative to books which may even be more complete.

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• Is it a good approach to rely on 3rd party software ( not library )?

  - by gunbuster363

  We have program using a call to a winzip program or 7zip commandline tool to zip some files. Once I accidentally uninstall winzip on my computer and making one of our program( created by the programmer already left ) crashed. So we cannot uninstall the winzip program. Now I've come to a point which I need to decide a external tool for gzip in windows or I make a java program which I can call to gzip the file. Obviously a external tool such as 7z is convenient and we can avoid some extra coding with java. On the contrary, if 7z is uninstalled accidentally, our program will crash. What do you think?

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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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• Sudo Non-Password access to /sys/power/state

  - by John

  On my computer, pm-hibernate appears to be broken, however using the command echo disk > /sys/power/state appears to work perfectly. Now I just need regular user access to it, using sudo. How do I do this? The command sudo echo disk > /sys/power/state simply returns bash: /sys/power/state: Permission denied. Also, I need this in a regularly used script, how can I make it so that I don't have to type in my password for it to work???

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• Is there a name for this issue?

  - by Epicmaster

  I was just talking to my partner about how hard it is to personally judge how good your product is after a while because you use it so often. You literally spend hours on your computer doing nothing but work on this Consumer Facing application, and you start to feel a little fatigue of using it over and over and over, at least a hundred times a day. You get scared this fatigue may mean the product you are building may have the same effect on the users and might mean you are doing something wrong. All i'm asking is, is there a name for this in product development? For the fact that as a designer+ programmer+everything else, your product might not suck as much as you think simply because you spend way to much time with it, or a variation of this?

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• How do I remove Deluge?

  - by Marc

  OK I have had Ubuntu for a month now and have absolutely been loving it. I have been able to fix problems in the terminal etc. Until I downloaded Deluge. Deluge does not work and it is acting like a virus. I have tried all the recommendations I can find I have tried 5 or so different terminal commands and nothing works. I can no longer choose another torrent down loader like transmissions because it is no longer on the list when asked which program I want to use to download a torrent all I get is Deluge which is pretty lame since I have removed it like 5 different ways. I just want Deluge off of my computer how hard can it be? Someone help!!

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• Introducing Sreelatha Doma, Guest Author

  - by Steven Chan

  I'm very pleased to welcome Sreelatha Doma to this blog's panel of guest authors.  Sreelatha Doma is a Principal Engineer - Database Administration in the Oracle Applications Technology Integration team, with a current focus on database technology.  She has been with Oracle since October 2005.  She was an EBS technology stack certification engineer for four years, and was involved in various technology product certifications for databases, RAC, browsers, Forms and middleware products. Prior to joining Oracle, she worked as a database administrator and Senior Technical Officer in Electronics and Communications India Limited (ECIL) and the Department of Atomic Energy.  She started her career as a software developer. Sreelatha has been in in the IT industry for over 13 years, and holds a B.Tech in Computer Science and Engineering.

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• How to make Ubuntu LiveCD be able to use USB Flash drive and external hard drive?

  - by ????

  I am booting up Ubuntu 2012.04 LiveCD... and was able to do /sudo mount /dev/sda1 /mnt and be able to see files in /mnt, which is the main hard drive that can't boot up any more. So to copy files from /mnt to an external hard drive or USB flash drive, I connected a 1TB external hard drive and 2 USB flash drives to the computer, but for some reason, in "File Systems", I can't drag and drop files from /mnt into those external hard drive or USB flash drives? I can't open or look into those drives either... How to make it work?

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• Ask the Readers: How Do You Score Free Wi-Fi While Traveling?

  - by Jason Fitzpatrick

  The holiday season is in full swing and that means many of us will be traveling–and searching for Wi-Fi nodes in the process. Help your fellow readers out by sharing your best Wi-Fi finding tips and tricks. Internet access is a necessity for the modern traveler but finding it is a bit more difficult than simply plugging into your home Wi-Fi. This week we want to hear all about your tips, tricks, and methods for scoring free Wi-Fi service in your interstate (and even international) travels. How do you keep the bounty of the internet flowing to your laptops, netbooks, tablets, and smart phones as you traverse the world? Sound off in the comments with your best tips and then check back on Friday for the What You Said roundup. HTG Explains: Understanding Routers, Switches, and Network Hardware How to Use Offline Files in Windows to Cache Your Networked Files Offline How to See What Web Sites Your Computer is Secretly Connecting To

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• Trouble using Canon MG 2440 printer in UBUNTU 14

  - by user264795

  I connected usb serial cable from printer to computer. The drivers has been installed automatically. I printed the test page - it was printed. I tryed to print an image - it stays with status - processing... and dont work. Test page also cant be printed. What a problem? I dont know exactly, but I think I use "CUPS" manager and drivers... now status Waiting for printer to become available. And do not print.

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• Upgrade to 12.04, nothing in dash, no date&time

  - by Nicolas

  I've upgraded from ubuntu netbook remix something to 12.04 lts, and I've got two issues. (Got an Asus eeePc 32bits, Intel 945GME x86/MMX/SSE2 and Intel Atom CPU N270 @ 1.6Ghz x2) Nothing in the dash. Only the "home" tab, other tabs are missing. No search result whatsoever. Missing elements in the system panel, privacy and date&time. No date&time on the right corner either. I've tried to reset unity with the terminal but the process was a whole mess full of errors. It did show date&time in the system panel (not on the top-right corner) while the process was going on in the terminal. But then it was such a mess (no more icons on the right corner amongst other things), and the process wouldn't complete: so I had to reboot the computer and get unity as before, still no date&time and privacy. Thanks for any help. nic

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• Cannot read from 2nd SATA data drive connected via SATA docking station

  - by Robbo

  Installed 10.10 this week on dual boot system. Everything else works fine but cannot read from 2nd SATA drive with all my data. Same drive works normally when booted to Windows XP. Interesting part is that I can see the drive in Ubuntu Disk Manager, can read all its attributes, can test it, shows up in Disk Manager, Storage Device Manager and Mount Manager, and can mount it, even change attributes; it appears healthy but does not show up in "Computer" or anywhere else that it can be accessed. The drive is connected via an external e-SATA docking station which is connected to a SATA port on the motherboard.

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• Why do different browsers return different search results at Google and how can I prevent it?

  - by Sei

  I am running some websites and am constantly checking keywords' rankings on google.com. And it is really important for us to see the organic search result without logging in or setting a specific location. Since this morning my colleague and I have checked the same ranking on both IE and firefox, the result surprisingly is very different (it almost feel like IE was logged in because the ranking is much higher, while in reality it is not). I have changed computer and the same problem occurred. It did not happen before. Can anyone tell me why is it?

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• Alternative printer driver for Fuji Xerox DocuPrint P205b?

  - by broiyan

  Is there a driver for a similar printer that also happens to work for the Fuji Xerox P205 b? I have tried the generic PCL 5 driver and the generic PostScript driver but they do not work. Any other suggestions? I'm on 10.10 (Maverick). Update The Fuji Xerox website has a Linux driver download as an .iso image. When you open the image you will see 3 drivers. One for HP UX for the PA-RISC and another for Solaris SPARC and one for RedHat x86, x86-64, etc. I picked the RedHat for my computer. It invokes RPM so install that first. The installation script crashes.

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• Inexpensive Business Checks

  - by Randy Walker

  One of the most annoying things when setting up a business is paying the outrageous fees for business checks.  When starting out, rather than pay the $150 for the handful of computer printable checks, I had bought software that would create the checks for me.  But if you didn’t know, those little digits at the bottom of a check are magnetically encoded and requires special ink. Fortunately, my current bank has one of the best bill pay websites, so I have exclusively used it.  But since I recently had to open a new bank account, I went off in search of a cheap alternative for business checks.  A bit wary of some of the printers, I opted for TechChecks and was extremely surprised a few days later when my checks arrived in perfect condition.  (I recommend the diamond prismatic red-blue-green checks.  Beautiful and very professional looking.) It was perfect timing as well, since I now have to reorder some checks for another account.

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• Someone erased the mac os x with ubuntu, how do i get it back?

  - by Azarius Jenkins

  so for a further detail about this, my friend has a macbook pro thats all i know about it specfically aside from the fact it was running os x lion. before this guy got a hold of the computer that he knows, I could hit the command key and the R key to get to the disk utilities and what-not to install OS X Lion on it, but now since whomever my friend let touch th mac, i no longer and do any of the start-up keys for it.. I've been trying to geth the mac os x lion on there and im having no luck what-so-ever, if anyone could help me with this i would be greatly appreciative... if you need anymore info that i may be able to provide please feel free to ask. thank you again.

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• Ghosting Program for Ubuntu 12.10

  - by Sean Webber

  I am looking to figure out how to set up a mass backup system for a computer network (of about 25) and am looking for a ghosting program that makes an image of the entire system for backup/recovery purposes. While clonezilla would work.. you have to manually boot us the CD for it. I am looking for a program that runs INSIDE Ubuntu that sends a system image backup off to the network server at set times, then when needed could also be used to burn the clone back to the machine. Another words- automatically and the only time I have to do anything to it is when I need to burn a backup BACK to a 'crapped' machine. Any ideas?

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• Alt + Tab window switcher preview stoped working

  - by umpirsky

  It just stopped working. After I boot Ubuntu it does not work. When I run unity --replace it works again, but after restart problem occurs again. And that happens on every reboot. I have some startup apps, but I don't think that can be the problem. Any idea? UPDATE: Looks like I had some problems with firefox causing Alt+Tab to stop working. After reinstalling firefox and computer restart it works.

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• advice for a new software engineer/developer right out of college

  - by ranzy

  I just graduated recently from a 4-year university with a degree in Computer Science and thankfully got a job in Software Engineering. I'm working with C++ with a .NET framework if that's correct to say because that also confuses me. What I'm asking for is what tutorials/books are out there to learn C++ for Windows Programming I guess? I know how to program somewhat and I understand the concepts but when I look at the code it doesn't make sense to me. I know I just started so it's kind of expected but it's certainly quite different from college. Thanks!

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• Double-click instead of single-click in Ubuntu 12.04

  - by evfwcqcg

  When I do a single click, my computer (with Ubuntu 12.04) acts like it was double click. I think it happens in ~50% of cases. It happens with all the program I use: browsers, file manager, terminal and so on. I'm not sure when exactly it started, maybe a week ago, and I don't remember if it started to happen after system-update or after the installation of some packages. What I tried: change mouse change mouse settings like Double-Click Timeout None of those helped me. Any ideas? Thanks.

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• Burn MP4 to CD in ubuntu 12.04

  - by xyc

  I have an mp4 file (115,8 mb). I want to burn it to a Sony CD-R (700 mb) to watch on tv. I tried to do it with DeVeDe from ubuntu software center but it always give me this error: "Conversion failed. It seems a bug of Mencoder." Can anyone tell me an other method to burn my mp4 to cd? Or can anyone tell me how to fix DeVeDe's error? I use a TOSHIBA computer (64 bit) with windows 7 home premium and ubuntu 12.04 LTS (installed via wubi.exe). Thx.

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• How to change design of a Ubuntu based linux distro

  - by Chanux

  I'm designing my own ubuntu based linux distro, I would like to know: 1. How can I change the name of Ubuntu grub. ex : when the computer starts it displays: ubuntu with linux kernel xxx ubuntu with linux kernel xxx (recover mood) windows 7 etc.... I want to change it to: MyLinuxName with linux kernal xxx MyLinuxName with linux kernal xxx (recover mood) windows 7 2. How can I change the image and logo. I want to change all Ubuntu logos and images, like Ubuntu boot logo, dash menu logo etc. Please help me.

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