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• How to get Skype's indicator on 12.04 [closed]

  - by herpson

  Possible Duplicate: How do I get the Skype status icon back? (on panel/tray) After upgrading to 12.04 (64bit), I've started installing the programs that I used to have on 10.04, one of them is skype. Downloaded the .deb file from Skypes website and installed it using the Ubuntu software center. However, when I launch skype, it doesnt add an indicator to the top menu like it used to, which means that when I click the 'x' on the program's window, it goes away, I cant reopen it, and I'm still logged in. How can I get the indicator back? Thank you

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• What is the difference between Indicator Plugin and Notification Area?

  - by Angelo

  I don't really understand why Ubuntu has two "notification area" style things that seem to serve the same functionality. I can't use only one because some of the programs seem to only work with Notification Area (e.g. Orage) and some only work with Indicator Plugin (e.g. indicator-sound). I noticed that the network manager applet will prefer to insert itself into Indicator Plugin and if that isn't available, try Notification Area. I don't understand why we have/need both? Is it normal to keep both running?

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• After upgrading to 12.04 lts server, the mouse is intermittently working

  - by Jason

  After this upgrade, I've had a problem with the mouse intermittently working and programs crashing (like zentyal crashing and the error reporting application crashing) I also had an error on the screen that said: "Could not grab your mouse. A malisious client may be eavesdropping on your session or you may have just clicked a menu or some application just decided to get focus. Try again." What's going on with this system? Did I really get malware that quickly? This system has been boxed up since 2011. I only did the upgrade today... In regards to the mouse I can move it around, but when I click on something, it doesn't work.

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• Is it okay for an application to check for automatic updates in less than 20 hour interval?

  - by FlameStream

  I have a desktop application that has the ability to automatically update itself on the next restart (without the user's consent - but this is another issue altogether). Assuming that the user would never notice anything related to application updating (such as a progress bar, or pop-up requiring restart), and that our server would support the request spam load, is there any reason why it should not check for updates in less than 20 hour interval? The reason I'm asking this is because all applications that I know that have auto-update capability check for update every 20 to 24 hours and at startup. I was just wondering if there was an ethical rule about it, or simply because of the risk of overloading the server.

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• How do I access an external drive mounted on a machine on my own network?

  - by avilella

  I've got one desktop computer Ubuntu 11.04 with an external USB drive mounted on it on the home WRT54L Linux network (192.168.0.2), and when I arrive at home with my laptop, I want to be able to mount the external USB drive from my Ubuntu 11.04 laptop (192.168.0.3) to the desktop, without having to unplug it from the desktop, that is accessing it. Is it possible to send a remote mount command to the desktop usb drive from my laptop? Ideally something that creates a local mountpoint I can just call locally from the programs installed in my laptop, like: username@laptop ~ ./myprograminlaptop /my/file/which/is/actually/on/the/desktop/file.txt

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• session persisting problem after system restart

  - by user100124

  Is there a way to prevent session id restore on startup/restart of user's system? We are using a asp.net app and I am able to login and access the site. For the first time session id is created and stored in cookies. Problem: But if I restart my system without signing out, the session is still alive. How can I prevent this? from server side. I can try to delete cookies but it is not practical, as each user will have different preferences.

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• Where, in an object oriented system should you, if at all, choose (C-style) structs over classes?

  - by Anto

  C and most likely many other languages provide a struct keyword for creating structures (or something in a similar fashion). These are (at least in C), from a simplified point of view like classes, but without polymorphism, inheritance, methods, and so on. Think of an object-oriented (or multi paradigm) language with C-style structs. Where would you choose them over classes? Now, I don't believe they are to be used with OOP as classes seem to replace their purposes, but I wonder if there are situations where they could be preferred over classes in otherwise object-oriented programs and in what kind of situations. Are there such situations?

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• What is the preferred/recommend way of running two version of ubuntu side by side

  - by GreyGeek

  I am running 14.04, but I need to run some corporate software/scripts that have been specifically designed for 12.04. I am aware of virtual box/vmware for full virtualization but I am looking for something more lightweight (on my windows machine both come at a significant cost in battery life) closer to os virtualization level. Ideally, I would like something like windows 7/8 compatibility mode: the ability to run a program as if I were on 12.04. Does Ubuntu/Linux have such mechanism? What is the preferred way of running programs/scripts designed for an older version of Ubuntu?

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• Compiz features stopped working when an external monitor is attached

  - by adjfac

  Running 12.04 on a thinkpad T520 with nVidia NVIDIA Quadro NVS 4200M graphics. Just updated to the lasted nvidia 310 driver. Everything works great. However, as soon as I attached an external monitor using nvidia twinview, compiz features such as scale (moves all the active windows in one page) stopped working, as well as alt-tab to list all opened programs. Any ideas how i can fix this? never had this problem with 11.04. I can post my xorg.conf if that's of use to you. Thanks much! edit 1: I am using gnome3 classic edit 2: alt-tab works -- compiz application switcher (by default for gnome3 / unity) will crash gnome-classic, by changing to "static application switcher" in compiz seemed to solve the problem, but the scale still does not work when an external monitor is attached.

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• khotkey script calling bindings stop to work on switching to Quantal

  - by Adobe

  I have many scripts which I call with khotkey. For example I have a hotkey which executes: bk_starts_or_brings.bash 'Konsole' konsole On updating to Quantal -- it stops to work: if I call that key -- it searches bk_starts_or_brings.bash 'Konsole' konsole in google in default web-browser. I tried: sudo apt-get install --reinstall libgl1-mesa-glx libgl1-mesa-dri xserver-xorg-core sudo dpkg-reconfigure xserver-xorg sudo apt-get install build-essential cdbs dh-make dkms execstack dh-modaliases fakeroot libqtgui4 When I start the command from konsole -- it works as expected, but when I call it with khotkey -- it doesn't. I guess someone shadows my keybiding. Or some daemon is not run on startup.

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• How do I allow Ubuntu to use more space on my computer?

  - by anonymous

  Ubuntu currently won't use more than 4GiBs on my computer, but I need more space. My computer can hold much more than 4GiBs. How do I allow Ubuntu to use more? Please give step-by-step instructions in plain English. Update: I'm referring to my Ubuntu operating system. I installed it using Wubi through Microsoft Windows. I deleted Wubi from my Windows desktop after installation. All I want is to expand my Ubuntu operating system. I plan to gradually transition from Windows to Ubuntu and so I'll need to transfer more files and programs from Windows to Ubuntu in the future. Right now, I already need more GiBs for Ubuntu. I can barely use Ubuntu right now because there's almost no space left. I simply want Ubuntu to use what space I need it to use. People, please quit complicating this issue and inform me how to make Ubuntu use more space.

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• gfortran in ubuntu 12.10

  - by user115334

  I hope my message will get read soon and somebody will give me a solution. I use fortran to do simulation and gfortran is the compiler I use. Recently I migrated from Ubuntu 10.10 to 12.10. After installing gfortran then I tried to compile and run my fortran programs then the problem started. I successfully compiled the program but I am unable to execute it. (I work in a directory in shared partition, not in HOME directory). When I compiled the program and run it within HOME directory, everything worked fine. On my Ubuntu 10.10, I was able to compile and execute fortran program from everywhere not only within HOME directory. This is what I do for compiling and executing fortran program: gfortran hello.f90 -o hello # to compile it ./hello # to execute it I'm blind about PATH or anything like it (this has to do with it, I suspect) so please give me direction.

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• Can't open display: :0

  - by empec

  I'm trying to get Nexus Mod Manager (Beta yet) working on wine, but after the configuration of NMM it crashes with an error. During the startup it spams alot of terminal stuff and at the end I find this error. ###!!! ABORT: Main-thread-only object used off the main thread: file /build/wine-mozilla-1.8/xpcom/base/nsCycleCollector.cpp, line 1166 ###!!! ABORT: Main-thread-only object used off the main thread: file /build/wine-mozilla-1.8/xpcom/base/nsCycleCollector.cpp, line 1166 Maximum number of clients reachederr:winediag:x11drv_init_thread_data x11drv: Can't open display: :0. Please ensure that your X server is running and that $DISPLAY is set correctly. Any suggestions? Thanks!

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• disable password prompt on user switch?

  - by matthewn

  I've got 11.10 on a desktop machine with two users. Both users have "Password" set to "Not asked on login" in Users Settings. At startup, either user can log in without a password. But once both users are logged in, it takes a password to switch between users. In previous Ubuntus, you could override this by setting /desktop/gnome/lockdown/disable_lock_screen to True in gconf-editor. That is ignored in the Gnome 3 / Unity era. Does anyone know a way to disable the password prompt when switching between users in Oneiric?

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• How can you monitor internet download usage?

  - by dv3500ea

  Some broadband providers impose a monthly download limit, charging extra if you go over. It is also quite easy to exceed some of the lower limits just by installing/updating packages and 'normal' browsing (which to me includes streaming TV programs and movies). This means that you need to limit the amount you use the internet, yet it is hard to know when. The System Monitor helps a bit with this by giving a total received/total sent in the networking section of the Resources tab. However, this is reset every reboot. It would be good if there was a way to have a monthly total received so you can know how close you are to exceeding your limit and maybe even be given warnings if it looks like you are going to exceed the limits. Does anyone know of a way to achieve this?

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• How do I remove Skype 4.3 from Ubuntu 14.04 LTS (32-bit)

  - by Lucas W

  I installed Skype on my nephew's new Ubuntu 14.04 LTS machine, and now we've decided to remove it. But I'm not able to locate it in my Installed programs section of Ubuntu Software Center. I'm able to call it up by opening the debian package, Software Center opens it up, but where I would normally see the "Remove" button, I have a "Reinstall" button. For the life of me, I can't figure out how to uninstall Skype. Any suggestions? In case you're wondering I used the version of Skype designed for 12.xx, as there was no option available for Ubuntu 14.xx.

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• What are steps in making an operating system in C ? [duplicate]

  - by ps06756

  This question already has an answer here: Compiler/OS Design - Where to start [closed] 3 answers I am trying to make an my own OS. This is for educational purpose only, so that I get to understand the internals as well as get a good idea of low level programming. I have some prior application development experience in C#/python/C++/C. I am a noob in assembly language(very less experience and knowledge). I understand that in writing an operating system,we can't go without assembly language. Currently, I have just printed a string in assembly language in the boot sector using qemu and BIOS interrupts. What I want is that, can someone specifically point out the steps that I need to follow to make my operating systems run C programs. So that, I can start writing my OS in C. Any other piece of advice to help a newbie, regarding the same is also welcome. Although, I have looked into many os development related tutorials/websites, I can't seem to find this information anywhere.

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• How to design an interface, where things need to be called in a specific sequence?

  - by Vorac

  The task is to configure a piece of hardware within the device, according to some input specification. This should be achieved as follows: 1) Collect the configuration information. This can happen at different times and places. For example, module A and module B can both request (at different times) some resources from my module. Those 'resources' are actually what the configuration is. 2) After it is clear that no more requests are going to be realized, a startup command, giving a summary of the requested resources, needs to be sent to the hardware. 3) Only after that, can (and must) detailed configuration of said resources be done. 4) Also, only after 2), can (and must) routing of selected resources to the declared callers be done. A common cause for bugs, even for me, who wrote the thing, is mistaking this order. What naming conventions, designs or mechanisms can I employ to make the interface usable by someone who sees the code for the first time?

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• Windows not closing

  - by bhanu

  After login, a number of windows such as Desktop, Downloads, and Pictures opens automatically. When I try to close them one by one closes itself but last one opens all indicating starting file manager in lower panel/status bar. After login all the windows such as desktop,download,home opens automatically when i try to minimise them all minimise. when i try to close them one after another they disappears but not last one which closes itself and reappear along with other indicating message starting file manager in status bar. ( it seems that there are a number of open nautilus windows at startup upon login, and when the user tries to close them, nautilus crashes and tries to restart)

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• SMTP mailbox unavailable - intermittent and self-inflicted

  - by user134451

  I have an app that runs daily, sending confirmation emails to dozens of customers. Emails are sent using SMTP with authentication. The app also has some error handling, and occasionally anonymous SMTP is used to notify the webmaster that an e-mail issue has been encountered (a malformed email address, usually). Whenever these warning notifications are sent, the customer notifications that follow throw an error: "Mailbox unavailable. The server response was: 5.7.1 Unable to relay". The customer notification emails are sent, but my app drops into the exception handler. And all subsequent customer notification emails have this problem. Everything is fine next time the programs run, until a webmaster warning email is sent. Anyone have an ideas what would cause this? My first thought was that the client didn't like being switched back and forth between anonymous to authenticated modes. I created a separate client for each mode, but that didn't help.

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• What's the recommend way to enable / disable services?

  - by NES

  I read about how to enable and disable services in Ubuntu and it seems that there are different possibilities manage theme? The first method i found is update-rc.d to add new services to startup, which aims on the /etc/init.d folder and it's contents. The other one i found is the way to edit .conf the files in /etc/init folder. What's the recommended way to enable / disable / add services and why? Could you please give a short bulletproof step by step example how to add a service xyz in Ubuntu and enable and disable it?

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• Javascript Only Search Method [on hold]

  - by user2118228

  I need to put a search function on a website that is going to be on a CD-ROM with no access to the internet. It has 80 pages, and about 500 'items', so I'd prefer to not have to hard code 100's of 'if statements if possible. I've found a few programs you can buy that will index and generate results (Zoom Search, JSS Index, The German Guys') but there are odd quirks with each one. Plus I would rather code it myself to get complete control over it, and to really understand what it's doing. Basically searching for a few words would display the product image and description; clicking on that would take you the related URL. This is kind of complicated, I can't find an easy solution not dealing with hundreds of if Statements. Has anyone ever created anything like this or know a better method? I'm not really sure a better way to go about this. I've used PHP/MYSQL for search results before, but this cannot run any php.

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• Good Bye FY'14

  - by rajeshr

  As we welcome Fiscal Year 2015 at Oracle, looking forward to an exciting times ahead, let me take a moment to reflect on the last few laps of the FY'14. No better way to do that putting up pictures that speaks thousand words. A huge batch who attended back to back programs on Solaris 11 Network Administration, Solaris ZFS Administration, Solaris Zone Administration (19 - 30 May 2014) at Hyderabad. Transition to Solaris 11 session (5-9 May 2014) at Hyderabad. Exadata Install & Maintenance session (28 April - 2 May 2014) at Singapore.

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• When trying running Ubuntu 12.10 off a usb drive, I encounter an error while prevent me from doing anything else

  - by Nil

  The details are that I used Universal USB Installer version 1.9.1.8 from pendrivelinux.com to install ubuntu 12.10 onto a 4gb pendrive as per instruction on Ubuntu's website. However, after I boot with drive I am met with the following message: "The system is running in low-graphics mode. Your screen, graphics card, and input device settings could not be detected correctly. You will need to configure these yourself." Pressing Ctrl Alt F1 doesn't allow me access and the options on the dialog box either send me through a loop returning me to the previous dialog or just leave me dead in the water. Pressing Ctrl Alt Del does however restart the computer if I am dead in the water, so ubuntu isn't COMPLETELY unresponsive... I feel I should mention that I'm trying to run this distribution on my netbook. I can't install it directly to the harddrive since I need my current Windows distribution for certain programs that don't quite agree with WINE yet.

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• Which software should I use on Ubuntu to create a Windows XP LiveUSB? [closed]

  - by user92241

  Possible Duplicate: How to create Windows XP LiveUSB using Ubuntu to replace it Since many programs that I need only work on XP, I need to install Windows XP on my 2 laptops but I can't use an optical drive, which makes using a USB the only option. If it helps, I can tell you that I used to have Vista and Windows 7 on my 2 laptops but I clean installed Ubuntu 12.04 on one, and Lubuntu on the other. Also I have no trace of Windows left on any of my laptops, when I bought my laptops they came without a Windows CD, so I only had a 20GB partition on my hard drives (which I formatted when I clean installed Ubuntu and Lubuntu.) Also, I have no problem with clean installing Windows XP and the reinstalling Ubuntu/Lubuntu so I can dual boot. Thanks! Edit: I have a ISO file ready, on a USB.

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