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  • password incorrect 3 times + suspected failed update

    - by Cheese
    I have been lurking your site for the past few hours, and have found myself in a bit of a pickle. Visiting my parents, I discover that neither computer, nor laptop work. Long story short, I've got the laptop working, but have completely fudged up the computer. I am a n00b, but I was at least willing to give it a go. The comp originally had ubuntu 11.10 installed, later updated to 12.04. We have cds for both. I do not understand what the initial problem was for my parents, but somehow when I turned on the computer, it worked for me. Soon after, I was nagged to install the latest updates. So, I spent the next half an hour wondering why the updates kept on asking for 11.04 cdroms, until I realised that you could turn off the cdrom necessity. After doing this via console, I installed some of the smaller updates, before being told to do a partial update. This failed a few times, and ended up freezing whilst reinstalling drivers. After a hard restart I continued to type whatever I could find on the forum into the console. At some point, the console started saying that I had 3 incorrect password inputs, and sudo commands stopped altogether. I found another thread discussing this; but people kept on suggesting changing passwords (which I did to no avail) or other things that made use of sudo (which I am locked out of, although I am technically the admin) I found myself somehow on the Ctrl+Alt+F1 console, and after being utterly confused (and Ctrl+AltF5 failing for me), another hard reset occurred. Somewhere along the way I created a USB start up for 14.04, (but this does not seem to work) Now I am left with an admin (and guest) account that log in but have blank screens (with only the desktop background showing) and I can't do anything in the console because I'm locked out. Interestingly, the console now says that I am running 14.04 although all updates said they had failed. Aside from the obvious lessons I have learnt (don't fiddle about in the console when you have no idea what you're doing "Dog wearing safety glasses "I have no idea what I am doing" GIF would be inserted here ) Is there any way I can redeem this almighty muck up? A million thanks for any help!

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  • Identifying connected lines drawn free-hand by a user

    - by rawrgoesthelion
    I have a series of 'images' described by a mixture of connected lines and curves. Users will draw on the screen, free hand, and my goal is to break their drawing down into a series of lines and curves that can be matched with the 'images' in my set. For the sake of simplicity, let's assume this is occurring on a touch screen. These lines will be connected. Each time the user's finger moves, the dx and dy is recorded. The drawing is considered complete and analyzed when the user's finger leaves the screen. I'm having trouble figuring out a good way to break the user's drawing down into lines. Is there any well known approach to this problem, a C++ library that solves it, or any good articles/technical papers on how to achieve this?

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  • TGA loader: reverse y-axis

    - by aVoX
    I've written a TGA image loader in Java which is working perfectly for files created with GIMP as long as they are saved with the option origin set to Top Left (Note: Actually TGA files are meant to be stored upside down - Bottom Left in GIMP). My problem is that I want my image loader to be capable of reading all different kinds of TGA, so my question is: How do I flip the image upside down? Note that I store all image data inside a one-dimensional byte array, because OpenGL (glTexImage2D to be specific) requires it that way. Thanks in advance.

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  • installing ubuntu 13.04 along side window 7 64 bit

    - by Shikhar Subedi
    I have a 64 bit computer with windows OS. Here are my specifications: core i3 processor 4 gb ram nvdia ge210 hard disk with 680 gb memory In my windows installation I have C: drive with 104 gb, D: drive with 246gb and E: drive with 246gb memory. My dvd rom is in f: drive. I want to install ubuntu 13.04 64 bit along side windows 7. So i burned the ubuntu 64 bit iso image onto a dvd and restarted the computer. but in the choice for installations, there is no option to select installing ubuntu along side windows. There is an option to install ubuntu inside windows instead. There are other options as well. What should I do to get the option to install ubuntu along side windows. I think the problem is with the number of drives in windows. Please tell me how should I make a partition in windows 7 to install ubuntu. Thanks a lot..

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  • How to change keyboard sleep button to hibernate?

    - by Allu2
    I have a keyboard with a "sleep" button that does indeed make my computer go to sleep. The problem is that Ubuntu can't really handle sleep on my computer, causing it go into a non-responsive mode, having the CPU fan spinning at full speed and it stops receiving any input. Hibernation instead works mainly as it should. I would like to set the sleep key to hibernate, but the keyboard settings' hotkeys tab doesn't have this "sleep" keybinding and though I could make new one with hibernate --force as the command, it would require root rights to run. How can I change the keyboard sleep button action to hibernate?

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  • How do I remove Ubuntu from a dual-boot Windows 7 laptop?

    - by Alex
    Im new to Ubuntu and liked it a lot! however after testing it on my old crappy laptop i now want to remove it. Ive looked at tutorials on how to uninstall and it says to start by deleting the linux partition of the hard drive.however after opening Computer management, I cannot locate my linux partition. same as when I go to System Configuration, and click on the "boot" tab, my computer does not list any operating system other than Windows 7. Any Way around this or perhaps a different way to uninstall?

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  • How to boot into Ubuntu after installing into a pre-installed Windows 8 pc?

    - by xVerified
    I recently just installed Ubuntu 13 from a USB drive. I have/had Windows 8 64 bit on my desktop computer. When I restart and boot my computer, there is not an option that allows me to choose Ubuntu, it goes straight to Windows 8. I understand this is a common issue. However, my main question is, how do I get to even GO INTO Ubuntu after it's installed? I don't mind booting into Windows 8 at first, but how can I even choose to see Ubuntu now that it's installed?

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  • xubuntu 12.04 restarts after suspend - only from my account

    - by Yoav Aner
    After installing a clean xubuntu 12.04 I noticed that when I suspend, the computer suspends and turns itself off (you see the lights go off, and a click sound from the HD or fans), but then about 2 seconds later it turns itself back on again... The odd thing is that: It doesn't happen when booting from the liveCD I created another user account. When I log onto this account I can suspend fine. The computer stays off until I press the ON button When I remove my .config folder and it's clean - I can also suspend without problem on my account So it seems that something in my user config is causing this, but I can't work out what it might be. I tried diffing the two .config folders, and also all processes running with one account compared to the other (ps -ef |grep <username>), but couldn't find anything obvious that might be causing this...

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  • No GUI before login on Ubuntu 14.04

    - by Pablo Chinchilla
    After I installed Ubuntu 14.04 as the only OS on my computer on nomodeset to install the Nvidia drivers for my video card. I installed it and all is working properly. The only problem that I have is that when I turn on my compurter I only see command lines instead of the Ubuntu logo. After that the login screen works in a proper way even with the GUI. I only want to get the Ubuntu logo instead of the command lines. PS: when I turn off my computer, the same thing is repeated.

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  • How much time do you spend actually developing vs. infrastructure activites?

    - by Can't Tell
    When I'm working I feel like most of the time I'm not doing actual work. For example after making a change to the code in order to test it, I have to first build the project, and start the server(say JBoss). Upon testing, I find that there is another small issue. So I bring down the server, make the changes, build again and start up the server again.The building and bringing the server up/down is not very useful work. Also, the IDE (lets say Eclipse) does things such as updating Maven indexes and building the workspace which take some more time to get things done. Have you come across this kind of situation? Do you have tips on how to overcome/bypass this? Any features on the IDE/build tools that can be helpful? Any architecture/application design/technology that attempts to overcome this?

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  • How do I change local display resolution via SSH?

    - by krumble1
    I have a machine running Ubuntu Server 12.04 LTS and I'm having problems with the local monitor. The Dell flat panel I'm using only displays this message while the computer running: "Cannot Display This Video Mode" and then the information: "Optimum resolution 1280x1024 60Hz". I'm fairly new to using an operating system wholly via command line but I'm learning fast. :) I can access the server fine via SSH so using it is not a problem. However, for where it is positioned at the moment, it would be much more convenient to use the computer locally. I'm just wondering how to change the local screen resolution via SSH to something usable by my monitor. Thanks for your time! BTW: I have also tried switching displays and I still have the same problem. Also BTW: I tried putting in the xrandr command and all I get back is: Can't open display

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  • How can I motivate the community to use boinc?

    - by user49523
    boinc is a really nice application to use on background of a computer that can help science projects and humanity as a all. I would like somehow to encourage people use boinc with their preferences on boinc like projects choice, cpu from 10 to 100 ,.. with their computer that will help science to move more quickly and help humanity There are 20 million users of ubuntu if most of use boinc , this will increase the speed of science projets .. and if other people from other operating systems use as also like mac,windows,.. and other open source like debian,.. this would even speed more science and now anyone can win also a prize , joining a project management like http://boincstats.com/ and there is more 2 How can i get ubuntu users and ubuntu community to know and use boinc application?

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  • Black frame around screen after HDMI connection failure

    - by Wolter Hellmund
    I was trying to watch a movie in my computer through the TV, so I connected both with an HDMI cable. I was unable to have a successful setup (the colors were all weird on the TV and the screen size, incorrect), I tried many resolutions using the nvidia-settings application and somehow my screen got framed by a black border and after that I have been unable to remove it, even after restarting the computer and not being connected to the HDMI cable anymore. I am using Ubuntu 11.10 amd64, my GPU is an nVidia GeForce 8600M GT and I am using the propietary driver version 280. The problem is due to some setting with my account only. I logged in to the guest session and the resolution is right there. Also, my desktop "thinks" the resolution is right (i.e. 1280x800), but it must be right in another scale because there is pixel area occupied by the black frame.

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  • XBMC is slow and sluggish in Ubuntu 13.04; how can I speed it up?

    - by Dreamdealer
    I have a Zotac ZBOX ID84 with Intel D2550 proc and Nvidia GT520M GPU, 2GB memory and 320GB hard disk. I tried XBMCbuntu first and it ran perfectly for a few months until I started to mess around with the Terminal. After a re-install I could get the HDMI sound to work again so I installed the latest version of Ubuntu (13.04) instead. That worked fine. The sound and everything worked right away, but the interface of Ubuntu is sluggish and XBMC doesn't run as good as it did in XBMCbuntu. The video playback is slow and it stutters. It speeds up and slows down with the complexity of the video. So, the PC is more than capable to run XBMC and play the videos, but something in Ubuntu (GUI?) slows it down to an unusable pace. Can anybody tell me what I can do to speed things up? Since I'm new to Ubuntu I have no clue where to start looking.

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  • Dual-boot question involving separate HD and windows 8

    - by user286976
    I use an external HD with Ubuntu+GRUB on it. This allows me to effectively "hijack" most systems. Basically it's a permanent LiveUSB - my own system wherever I go. I use it for recovery mainly when Windows systems muck up, and for portability (as I can have my system on the go, without effecting the pc I'm borrowing, much like a LiveCD). I'm about to update to Windows 8 now [on a new, different computer]. Is there any special measure I should take to do this? I've seen a similar post here, but the OP had both harddrives plugged in simultaneously - that's not exactly my setup. Thank you :) EDIT: added for clarification that this is for a totally new computer.

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  • frequency out of range - please change display mode

    - by Dave
    I just downloaded the latest version of the Ubuntu live CD, and have installed it on a desktop computer (a Fujitsu Scaleo P). Once installed it seems to work perfectly, although there are some updates recommended in the Update Manager. My problem is that, after having installed these updates and restarted the computer, I get this message on my monitor, and no Ubuntu interface is visible: frequency out of range - please change display mode I do not know how to change this when I can't access an interface. Is there a command that will bypass trying to boot the GUI and let me change the display mode via a CLI? I am brand new to Ubuntu and any help on this would be much appreciated.

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  • Make public webcam. Which protocol, which codec. (Using VLC)

    - by gsedej
    Hi! I want to use my old (1GHz) PC as webcam video stream server (like you can see those road cameras). I thought of using VLC and already tried using http output but it was not really good. Too cpu hungry, too big stream (kBps), not stable... I been reading VLC how-to's but thre is still a question. Which output should I use? Http, RTSP, UDP? I want to make for more than one computer at the same time (multicast). Which codec should be good? PC is not so fast so it shouldn't be too cpu hungry codec. Mpeg2, mpeg4, xvid? how much video buffer should I use (vb=?)? What about setting IP and ports? So I need some help with ideas, but if someone can make a VLC command line it's even better :) Oh, computer has direct internet connection and own IP.

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  • Full brightness and keyboard backligh at boot

    - by joelalmeidaptg
    I own an Asus N56VZ, and each time I start Ubuntu (13.10 and prior versions) my screen brightness and keyboard backlights reset their values to the max. Ubuntu doesn't save my settings on reboot. I was wondering if someone could help me with this? It is horrible when, at night, I turn on my computer - it is like looking directly to the sun, and it hurts my eyes. I tried googling and none of the pages I found actually helped. I think my issue might be grub-related. I have a dual-boot with Windows 8.1, so before I start my computer I see grub to choose my operating system. My screen starts at full brightness as soon as I reach grub. Maybe he is making the OS forget about my last values, overriding it with its? Does someone knows how to solve this? Thanks in advance :) PS: I'm using bumblebee with Nvidia driver 304, but this issue existed before I installed it.

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  • How do you hibernate/suspend Ubuntu like Windows or both at the same time?

    - by All Star Geek
    I'm using an ASUS laptop with Windows 7, and I just installed Ubuntu alongside Windows yesterday, using the no-risk option. I noticed, though, that I can't hibernate Ubuntu the way I did with Windows to save time, and, every time I use Ubuntu, I have to shut down to go into Windows, which has a slow boot. Is there any way that I could have Windows and Ubuntu hibernated at the same time so I can access both easily (preferably without having to hit a function key within seconds). When I try to hibernate or suspend Ubuntu with Windows shut down, the screen just turns blue and doesn't shut the computer off like a Windows hibernate or sleep.

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  • Installed Ubuntu using WUBI due to lack of CD Drive

    - by Chantelle
    I have installed 12.04 via WUBI because my computer does not have a CD Drive. Is there any way that I can delete Windows 7 from my computer and use the whole HD for Ubuntu? I ask this question because for one reason or another I cannot boot from a boot-able USB stick (either in Windows or Ubuntu, however the USB port works because I am able to use my cell phone's tethering plan using all the USB ports to connect to the Internet). Edit: Just found out the problem. Eee PC Model 1018p's do not boot from any format other than FAT and FAT16 and not FAT32.

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  • Network connection on an Acer Aspire 5253?

    - by fuquam
    Brand new to Ubuntu and PCs for that matter. I've been a Mac user all my life but wanted to try Ubuntu on the cheap, so I bought an Acer Laptop 5253-BZ893 and i got Ubuntu 10.10 installed with no problem. The only problem i have is, that i get no network connection options, wired or wireless. I just get No Network Devices Available. The computer came with Windows 7 installed and i am able to connect to my wireless network fine using Windows, so i know the computer works. Also i've been searching forums and google for hours trying to figure out why I can't get a network connection in Ubuntu but so far no luck. Any suggestions? Thanks in advance.

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  • Is it possible to configure Apple's Magic Mouse to be recognised on start up?

    - by Dave
    This question may apply more roundly to all bluetooth mice but in my case I am dealing with an Apple Magic Mouse. I have followed the set up instructions here; https://wiki.ubuntu.com/Multitouch/AppleMagicMouse closely. I have even removed the mouse and started from scratch more than once repeating each step described carefully. Every time the computer is started it does not see the Magic Mouse by default. I need to keep a wired mouse connected to the computer at all times which I use to log in with then connect the Magic Mouse, in a somewhat counter-intuitive exercise! Any help would be greatly appreciated.

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  • Best way to trigger editing and dynamically show editing features? [on hold]

    - by Tim Marshall
    Page In Question: http://rafflebananza.com/admin/StatisticalData/expenses/expenses.html Hiya Everyone, On my page, I have an 'Actions' drop down to the top-right hand side of the page. This actions drop down I would like to have an action to 'Enable Editing'. Upon clicking to enable editing, I would like a PHP variable modified from 'EnableEditing = false' to 'EnableEditing = true'. Why I would like to use PHP maybe questionable, here is why I would like to use PHP under my understanding to clarify; Sections on my page will show to different administrators depending on their level. Upon enabling editing mode, certain contents will then dynamically. <?php if ($_SESSION['user_level_status'] < 2) { if ($editing = enabled) { show this } else { show this } } ?> Something similar to this, I'm new at PHP so this may look incorrect. The question really is, is PHP the correct language to use to trigger editing and how can I do this please? Best Regards, Tim

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  • Kernel won't update automatically

    - by Bucic
    My current kernel is 3.2.0-26 (my main computer) while on another of my Ubuntu computers, with which I didn't fiddle with unofficial updates, it's 3.2.0-30. Yet the Update manager on my main computer doesn't show available kernel updates. It shows other updates though. I suspect is due to the fact that in the past I installed multiple mainline kernel versions (not recommended versions), up to 3.5* series. What I'm after: Either: Fix automatic kernel updates. Or: Learn about a way to check for the latest official ubuntu kernel version and get it manually (I know how to install kernels from debs) What I have already tried: Uninstalled unused kernels including "the generic one without a number".

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