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• Gnome indicator applet not showing same items on two computers

  - by EmmyS

  I have one computer running Lucid and another one that I recently upgraded to Maverick. Up until today, I was using AWN with Maverick, including their custom indicator applets. I've decided to switch back to the default gnome panels with dockbarx, but when I add the indicator applet to my panel, it's not displaying the same items as the applet on my Lucid machine. In particular, the network and Dropbox icons are not displaying. When I look at the About entry for the apps, Lucid shows version 0.3.7, whereas Maverick shows 0.4.6. Did they really remove the network information from the applet in Maverick, or do I need to do something to enable it? My network is very definitely connected, as I still have AWN running and can see the icon there. (A second question, although not particularly important: the applet doesn't inherit the transparency of the panel it's living on - any way to change that?)

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• Common Javascript mistakes that severely affect performance?

  - by melee

  At a recent UI/UX MeetUp that I attended, I gave some feedback on a website that used Javascript (jQuery) for its interaction and UI - it was fairly simple animations and manipulation, but the performance on a decent computer was horrific. It actually reminded me of a lot of sites/programs that I've seen with the same issue, where certain actions just absolutely destroy performance. It is mostly in (or at least more noticeable in) situations where Javascript is almost serving as a Flash replacement. This is in stark contrast to some of the webapps that I have used that have far more Javascript and functionality but run very smoothly (COGNOS by IBM is one I can think of off the top of my head). I'd love to know some of the common issues that aren't considered when developing JS that will kill the performance of the site.

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• Disable suspend / hibernate via the policykit

  - by redonath

  I am trying to run Lubuntu 12.04, but if the computer suspends I am unable to bootup again. Instead I see the bios post, the hard disk light flickers once and I have to install again (I have tried to re-install grub2). I am new to Linux and what I found that best answered my question was posted by James Henstridge. The instructions say to create disable-shutdown.pkla in etc/polkit-1/50-local.d/ but this directory does not exist, so do I create a folder titled 50-local.d in poolkit-1 or do I have to place this file elsewhere?

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• The Island of Lost Apple Products

  - by Jason Fitzpatrick

  While Apple has has a mountain of commercial successes, every once in awhile the crew in Cupertino strikes out. Here are some of the less successful and prematurely retired Apple products from the last two decades. Courtesy of Wired, we find nine of the least favorably received products in the Apple portfolio. Pictured here, the QuickTake Camera: Life Span: 1994 – 1997 Back in 1994, Apple was actually at the forefront of digital photography. The QuickTake Camera’s photos (640 x 480 at 0.3 megapixels) were borderline unusable for anything other than your Geocities homepage. But technology has to start somewhere. Still, Apple killed the line after just three years. And while the iPhone and other smartphones have replaced most people’s digital cameras, Apple could have had a reaped the benefits of the digital point-and-shoot salad years. 6 Ways Windows 8 Is More Secure Than Windows 7 HTG Explains: Why It’s Good That Your Computer’s RAM Is Full 10 Awesome Improvements For Desktop Users in Windows 8

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• Windows 8.1 Apps Now in Bookstores

  - by Stephen.Walther

  My book Windows 8.1 Apps with HTML5 and JavaScript is in bookstores now and it is available for purchase from Amazon. Extensively updated for the release of Windows 8.1, this book covers all of the new features of the WinJS 2.0 library such as the Repeater, SearchBox, WebView, and NavBar controls and the new WinJS Scheduler. I wrote a new sample app for this edition of the book  – the MyTasks app — that demonstrates how to build a Windows Store app that interacts with Windows Azure Mobile Services. If you are currently using a Windows 8.1 computer then you can install the MyTasks sample app from the Windows Store. I’ve written a summary of the new features included in Windows 8.1 for app developers which you can read here: Top 10 Changes for Building Windows Store Apps with Windows 8.1

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• How can I inform search engines that the usefulness of some content on my site has a limited shelf life?

  - by Tim Post

  Let's say that I run a forum dedicated to computer hardware. Naturally, people are going to ask questions like: What is the best laptop for running [os] Or What is the best video card for under [amount] These may be perfectly fine discussions, but the content loses usefulness over time. An answer to either question asked in 2007 might still be relevant in 2008, but definitely not in 2012. Is there a way that I can tell search engines that certain pages might not give visitors what they're looking for after a certain date, and perhaps hint to a page on my site that would provide good information? Perhaps something I could set in HTTP response headers, meta tags or even a site map?

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• How do I remove SUN Java and use OpenJDK instead?

  - by Adel Ramadan

  As a programmer I use java for learning to code in Netbeans. I installed Sun java 6 long time ago over openJDK that came with my ubuntu just cause it seemed more responsive... Now that oracle left the repos I wanted something easy to handle to install and uninstall, so I want to Remove completely sun java 6 from my computer and set as default OPENjdk....and openjre. I already have installed OpenJDK and OPENjre...but not marked as default. Besides I want to clean Sun java from here, dont wanna get messy ^^. Running ubuntu 11.10

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• Slow wifi with D-link DWA-160 A2

  - by Tommy Brunn

  I recently bought a USB wifi adapter for my new desktop computer. It's a D-link DWA-160 A2. From the start it didn't want to work at all, but after unplugging and then plugging it back in, it seems to work. However, my browsing is painfully slow. NetworkManager reports the connection to be at around 78-85% signal strength, which seems perfectly acceptable. Is there anything I can do to make it faster? I'm dual booting with Windows 7, where it seems to work fine, so I'm guessing that the problem occurs because of crappy drivers.

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• Creating practically solvable 15 puzzle inputs

  - by Ashwin

  I am now developing a 15 puzzle game. I know the method to detect unsolvable puzzles. But unlike 8-puzzle, solution for 15-puzzle takes quite long time for some input states and can be solved within 5 seconds some other set of input states. Now the problem is that I cannot give the user(the player), a problem for which the solution takes more than 10 seconds(if he/she chooses to see the solution). So what I want is that when I initially shuffle the puzzle, I want to only present those puzzles which can be solved within 10 seconds. There must be some way to determine the hardness of the puzzle. I tried searching the net but could not find it. Does anyone know a way of determining the hardness of a puzzle? NOTE : I am using A* algorithm to find out the solution on a computer with 3GB RAM and 2.27GHZ processor.

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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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• Ubuntu Server 12.10 No GUI Headless Boot and/or Reboot

  - by Ubuntu User

  I have a headless server running the latest Ubuntu Server 12.10. It does not have any GUI at all. I am having the same issue that others are having which is that when you boot or reboot without a monitor (headless) the computer does not boot. The solution presented to others was to edit their xorg.conf file. But since I do not want a GUI installed (and therefore chose not to install a GUI after installing Ubuntu 12.10) I do not have a xorg.conf file in the /etc/X11/ directory. Ubuntu is a widely used distro of Linux, especially for server applications, I absolutely love it. Therefore, there has to be someone who solved this already?

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• Knowing so much but application is a problem?

  - by Moaz ELdeen

  In my work, my friends always tell me, you know so much about computer science, electronics engineering,..etc. But I have difficulty in applying them and my code is crap. How to solve that problem? Will I be better or programming isn't my career? For example, yes I know OCTree that is used for space partitioning in games and it is used for optimization, did I implement it? No, but I know about it in principle.. Do I know algorithms like Sorting, Searching,..etc? Yes, and I know them pretty well, but didn't implement them.. When I get a task, I struggle in applying the things that I know...

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• Upgraded to 11.10 lost personal folders, Ubuntu one shows no files

  - by Kevin

  Upgraded to 11.04, from 10.10 system would only come up in terminal mode, but it told me that an additional upgrade was available and did I want to do that. Foolishly thinking that might fix the problem, I said yes. This time it did not make it all the way through the upgrade, when I came back to the computer over an hour later, the screen was filled with an error message "could not open display", had to reboot. Went to recovery mode on reboot to install nvidia module, when I rebooted system came up fine, but without carrying over my personal folders, I have the home folder, but no personal named folder in it. Came to Ubuntu One, but gives error message; File Sync error. (org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked Is the a way around this in order to restore my files? I know my files existed on Ubuntu one as of a few months ago.

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• How to enable ping in windows firewall in windows server 2008 r2

  - by ybbest

  If you are unable ping your windows server 2008 r2 machine or if you have a “one way ping problem”. You need to check whether you have it enabled in your windows firewall.To enable it , you need to do the following: 1. You need to go to control panel >> windows firewall >> Advanced settings 2. Go to Inbound Rules and enable File and Printer Sharing (Echo Request – ICMPv4-In),after you have done this ,your computer will become pingable.

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• Ubuntu 12.04 LTS Realtek RTL8192E Problems

  - by Logan

  My wifi is not working. I have tried ndiswrapper with the XP driver but that still did not work. Please explain to me in layman's terms. I can run commands so if you tell me exactly what to put, i will put it. Basically, ubuntu is not showing a wireless networks option and when I ran some command yesterday it said the driver was UNCLAIMED. Please help. This is a wintec card with realtek rtl8192E chip on it. It is a desktop computer. On a 20gb partition, other 60gb is for windows(yeah its an old desktop). Use windows installer to install ubuntu(this is one of the dell desktops that wont boot ubuntu from disk). So any help is appreciated and I would like to get this done THIS weekend.

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• Independent projects as a student to show off abilities

  - by tufcat

  I'm an inexperienced student (having learned up to data structures and algorithms through various online resources) of computer science, and I'm hoping to get a job as a developer some time after I've gotten a few independent projects done. My question is, how should I choose which projects to work on? I've been looking around stackoverflow-- people usually say to pick whatever you're interested in, but I don't have enough experience to even know what specifically I'm interested in, and possibly more importantly, I don't know what some common beginner project types are. Essentially, I'm at the gap between course work (and the projects entailed in those classes) and real programming, and I don't quite know how to start. If any of you have any ideas, I'd really appreciate it.

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• Running an old version of some software

  - by Mark Oak

  I don't want to mingle in any backstory, but all that needs to be known is that I have a computer with Ubuntu on it and I am trying to install Windows 8 from an ISO. I am using the guide that can be found here which is a little more than four years old. Now, I've been able to accomplish everything up to Step 2, at which point I am stuck. I have downloaded the file found on that page, which can be found here, and have attempted to use it, as directed, quote; "right click the downloaded Unetbootin file, select Properties and on the "Permissions" tab, check the "Allow executing file as program" box. Then simply double click it and it should open." But, after having set checked the specified box and double clicking the file, nothing happens. Nothing is launched and nothing changes. I've been stuck here for several hours now, having failed to find a solution via Google.

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• Free Virtual Developer Day - Oracle Fusion Middleware Development

  - by B Shashikumar

  Oracle Application Development Framework (ADF) is the standards based, strategic framework for Oracle Fusion Applications and Oracle Fusion Middleware. Oracle ADF’s integration with the Oracle SOA Suite, Oracle WebCenter and Oracle BI creates a complete productive development platform for your custom applications. Join a free online developer day where you can learn about the various components that make up the Oracle Fusion Middleware development platform including Oracle WebCenter, Business Intelligence, BPM and more! Online seminars, hands-on lab and live chats with our technical staff is available directly from your computer.  Register now and join us on July 10th. https://oracle.6connex.com/portal/fusiondev/login?langR=en_US

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• Consoles in Ubuntu and automatic upgrade

  - by Muhammad Khan

  So I recently discovered that ubuntu is simultaneously running 6 consoles in addition to the GUI that everybody uses, which can be accessed by pressing Ctrl+Alt+F1 ... +F6 and then the default GUI with Ctrl+Alt+F7. What use can these consoles have when I can just open a terminal in the GUI mode? Also, why is having consoles like this advantageous for computer users; wouldn't a GUI be much more simplistic? Also, running the console told me that I was running a development version of Ubuntu Quantal which is version 12.10. The login screen (correctly?) says that I'm running 12.04 LTS. What does that mean? Thanks everybody!

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• Updates broke my themes/shell [Ubuntu 12.04 running Gnome 3 ]

  - by APNW

  I am running gnome-session 3.4.2.1. After the latest updates (listed below) my theme regressed to what looks like tango - not sure. Am unable to change it using Gnome-tweak tool or the display settings. I am also unable to change the wallpaper. Here's what it looks like: Synaptic: Chromium and this is the wallpaper page even though I have selected the wallpaper, it actually does not change. This same problem occurred on my personal computer, and one other computer I have, all running the same software/config. The interesting thing is that while Gnome 3 and Unity are affected, Cinnamon is not. What I've done so far: purged and re-installed both gnome 3 and Unity- no change noted. So, how do I fix this? Thanks Here's the installation log: Start-Date: 2013-11-07 12:01:28 Upgrade: chromium-browser-l10n:i386 (28.0.1500.71-0ubuntu1.12.04.1, 30.0.1599.114-0ubuntu0.12.04.3), libswscale2:i386 (0.8.6-0ubuntu0.12.04.1, 0.8.8-0ubuntu0.12.04.1), chromium-codecs-ffmpeg:i386 (28.0.1500.71-0ubuntu1.12.04.1, 30.0.1599.114-0ubuntu0.12.04.3), chromium-browser:i386 (28.0.1500.71-0ubuntu1.12.04.1, 30.0.1599.114-0ubuntu0.12.04.3), libpostproc52:i386 (0.8.6-0ubuntu0.12.04.1, 0.8.8-0ubuntu0.12.04.1), libavcodec-extra-53:i386 (0.8.6ubuntu0.12.04.1, 0.8.8ubuntu0.12.04.1), libavformat53:i386 (0.8.6-0ubuntu0.12.04.1, 0.8.8-0ubuntu0.12.04.1), libavutil-extra-51:i386 (0.8.6ubuntu0.12.04.1, 0.8.8ubuntu0.12.04.1) End-Date: 2013-11-07 12:02:00 Start-Date: 2013-11-07 17:32:55 Commandline: aptdaemon role='role-commit-packages' sender=':1.136' Install: libmusicbrainz5-0:i386 (5.0.1-2~precise2), udisks2:i386 (1.98.0-1~precise1), libclutter-gst-1.0-0:i386 (1.5.4-0ubuntu2), libudisks2-0:i386 (1.98.0-1~precise1), cinnamon-session-common:i386 (2.0.4-20131105043005-precise), librhythmbox-core6:i386 (2.97-1ubuntu1~precise1), gcr:i386 (3.4.1-3~precise1), libcluttergesture-0.0.2-0:i386 (0.0.2.1-2ubuntu3), libmx-1.0-2:i386 (1.4.3-0ubuntu1), guile-2.0-libs:i386 (2.0.5+1-1), libclutter-imcontext-0.1-0:i386 (0.1.4-2build1), libnatpmp1:i386 (20110808-3ubuntu1) Upgrade: gnome-keyring:i386 (3.2.2-2ubuntu4.1, 3.4.1-4ubuntu1~precise1), cinnamon:i386 (2.0.6-20131026040307-precise, 2.0.10-20131105040309-precise), gir1.2-muffin-3.0:i386 (2.0.3-20131023003029-precise, 2.0.3-20131105003012-precise), gir1.2-totem-1.0:i386 (3.0.1-0ubuntu21.1, 3.4.3-0ubuntu1~precise1), nemo:i386 (2.0.2-20131023010018-precise, 2.0.5-20131105010007-precise), aisleriot:i386 (3.2.3.2-0ubuntu1, 3.4.1-1~precise1), procps:i386 (3.2.8-11ubuntu6.2, 3.2.8-11ubuntu6.3), libcinnamon-desktop0:i386 (2.0.2-20131025011504-precise, 2.0.3-20131105011505-precise), libgck-1-0:i386 (3.2.2-2ubuntu4.1, 3.4.1-3~precise1), totem-plugins:i386 (3.0.1-0ubuntu21.1, 3.4.3-0ubuntu1~precise1), cinnamon-desktop-data:i386 (2.0.2-20131025011504-precise, 2.0.3-20131105011505-precise), rhythmbox:i386 (2.96-0ubuntu4.3, 2.97-1ubuntu1~precise1), libgcr-3-1:i386 (3.2.2-2ubuntu4.1, 3.4.1-3~precise1), seahorse:i386 (3.2.2-0ubuntu2.1, 3.4.1-2~precise1), muffin-common:i386 (2.0.3-20131023003029-precise, 2.0.3-20131105003012-precise), totem-common:i386 (3.0.1-0ubuntu21.1, 3.4.3-0ubuntu1~precise1), libtotem0:i386 (3.0.1-0ubuntu21.1, 3.4.3-0ubuntu1~precise1), rhythmbox-data:i386 (2.96-0ubuntu4.3, 2.97-1ubuntu1~precise1), gir1.2-cinnamondesktop-3.0:i386 (2.0.2-20131025011504-precise, 2.0.3-20131105011505-precise), cinnamon-session:i386 (2.0.1-20131021043004-precise, 2.0.4-20131105043005-precise), rhythmbox-mozilla:i386 (2.96-0ubuntu4.3, 2.97-1ubuntu1~precise1), rhythmbox-plugin-zeitgeist:i386 (2.96-0ubuntu4.3, 2.97-1ubuntu1~precise1), libmuffin0:i386 (2.0.3-20131023003029-precise, 2.0.3-20131105003012-precise), cjs:i386 (2.0.0-20131021020602-precise, 2.0.0-20131105020703-precise), rhythmbox-plugin-cdrecorder:i386 (2.96-0ubuntu4.3, 2.97-1ubuntu1~precise1), cinnamon-common:i386 (2.0.6-20131026040307-precise, 2.0.10-20131105040309-precise), gnome-disk-utility:i386 (3.0.2-2ubuntu7, 3.4.1-0ubuntu1~precise1), nemo-fileroller:i386 (2.0.0-20131021020004-precise, 2.0.0-20131105020003-precise), libnemo-extension1:i386 (2.0.2-20131023010018-precise, 2.0.5-20131105010007-precise), rhythmbox-plugins:i386 (2.96-0ubuntu4.3, 2.97-1ubuntu1~precise1), gimp:i386 (2.8.6-0precise1~ppa, 2.8.8-0precise0~ppa), cinnamon-settings-daemon:i386 (2.0.5-20131026004504-precise, 2.0.6-20131105004505-precise), libgimp2.0:i386 (2.8.6-0precise1~ppa, 2.8.8-0precise0~ppa), gir1.2-rb-3.0:i386 (2.96-0ubuntu4.3, 2.97-1ubuntu1~precise1), wpasupplicant:i386 (0.7.3-6ubuntu2.1, 0.7.3-6ubuntu2.2), libcjs0c:i386 (2.0.0-20131021020602-precise, 2.0.0-20131105020703-precise), nemo-data:i386 (2.0.2-20131023010018-precise, 2.0.5-20131105010007-precise), totem:i386 (3.0.1-0ubuntu21.1, 3.4.3-0ubuntu1~precise1), gimp-data:i386 (2.8.6-0precise1~ppa, 2.8.8-0precise0~ppa), transmission-common:i386 (2.51-0ubuntu1.3, 2.73-0ubuntu1~precise1), cinnamon-translations:i386 (2.0.1-20131021040407-precise, 2.0.1-20131105040807-precise), totem-mozilla:i386 (3.0.1-0ubuntu21.1, 3.4.3-0ubuntu1~precise1), rhythmbox-plugin-magnatune:i386 (2.96-0ubuntu4.3, 2.97-1ubuntu1~precise1), transmission-gtk:i386 (2.51-0ubuntu1.3, 2.73-0ubuntu1~precise1) End-Date: 2013-11-07 17:34:40

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• Who owns code if its written by one person with another person directing [on hold]

  - by user136226

  I have an Issue that I need some info on. Basically what Im looking to find out is if I create software,and someone else gives me direction on what they want the software to look like,e.g. an image here,this font of text and it must behave in a certain way. Also some of the code was not developed on my computer and there is no official agreement in place. Not looking to screw anyone over here but need to protect myself if things go sour. Do I own the software or is it jointly owned? Thanks

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• How to unmount a virtual cd/dvd in Ubuntu 11.1o

  - by P J Reil

  I'm new to Ubuntu 11.10 and have absolutely no idea what I'm doing. I don't now how but in downloading and fooling around with a virtual cd/dvd program I seem to have inadvertently installed it. I had to shut down my computer for a while and when I re booted it all my files and my setup was gone. I have a brand new 11.10 setup with all the programs installed that I originally had but no files or bookmarks etc.. I'm not sure, but I think I'm running in a virtual cd/dvd. I don't know how to determine if I am or not and can't boot up in my original setup. Can anyone help me?

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• Confused about career options in Web Developement.

  - by Radheshyam Nayak

  I am currently in the final year of my graduation in computer science course. I love programming in PHP but not under pressure. As my graduation life is going to be over I have to shape up my career. My personal desire is to become a web developer and start my own web-based company after completion of courses. I do not have any desire to work for a company as a developer. Currently I have programming knowledge of PHP, Mysql and Javascript. Though I have not completed any type of project in PHP. So to become a complete web developer what else do I need to know to be able to get developement project? Any project I apply for are simply declined due to lack of portfolio. So how should I proceed?

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• Enable Parental Controls in Windows 7

  The Internet is a fascinating yet scary world. This is especially true for those with young children who are just making their way online. As a parent it s not really plausible for you to be by your child s side at all times. Thus when they are using the computer you could probably use some help in monitoring their actions. Luckily Windows 7 s Parental Controls feature can help.... Microsoft? Cloud Power See How Companies are Using the Cloud to Cut Costs. Watch a Demo.

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• Can't log in on boot up

  - by Jerry Donnelly

  I set this computer up with Ubuntu for my neighbor about two years ago. Today she tried her normal boot up and log in and her password isn't accepted. I've double checked and she's using what I set her up to use, the caps lock key is okay, and I can't see any other reason for the problem. I'm not sure exactly what version of Ubuntu she has and I'm not an expert user myself. Is there a way to bypass the password screen on boot up that would let me get to Ubuntu and perhaps set her up as another user? She basically checks email and that's about it. Thanks for any assistance.

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