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  • " this kernel required an X86-64 CPU, but only detected a i686 CPU"

    - by jy19
    I recently decided to use Virtualbox to run Ubuntu, but I get the message this kernel required an X86-64 CPU, but only detected a i686 CPU I've already enabled virtualization in BIOS, but that doesn't seem to work. Many other solutions suggest that I should download the 32-bit version, and not the 64-bit. I'm not sure about that though, since my computer clearly says "64-bit operating system" under systems. But I might just be mistaken.

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  • why my ubuntu always runs on low-grahphic mode?

    - by sam
    My graphic card is NVIDIA GTX 460, and ubuntu is ubuntu 10.04. I have reinstalled graphic driver for two times,but my ubuntu shows that it runs on low-graphic mode after a period of time of driver installation process. The following is the information the computer shows. http://imgur.com/GkZUz Also, when I try to change the graphic setting of NVIDIA on ubuntu, the following information shows. http://imgur.com/SVhCc How to fix it?Thank you!!

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  • Laptop screen not detected but ubuntu working on other monitor

    - by Aymane El Baamri
    I have a laptop with with intel celeron inside 64 bit, the 64 bit amd ubuntu 11.10 is working on the laptop, just it wont detect the laptop screen but the same live usb worked on amd 64 pc, When i connected the desktop computer monitor to the laptop it worked perfectly with 1920x1080 screen, battery, WIFI. Im not sure if its cause i made the usb it with LiLo live usb creator on the desktop pc, should i remake the usb on the laptop?

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  • Saddling your mountain lion with JDeveloper

    - by Blueberry Coder
    Last October, Apple released Java Update 2012-006. This patch brought the Apple-provided JDK for OS X Lion v10.7 and OS X Mountain Lion v10.8 to version 1.6.0_37. At the same time, it disabled the Apple Java plugins and removed the Java Preferences panel that enabled users to manage the various Java releases on their computer. On the Windows and Linux platforms, JDeveloper 11g R1 has been certified  to run on Java 7 since patch set 5. This is not the case on OS X.   ( The above is not a typo. Apple's OS for personal computer is now known as OS X; the « Mac » prefix has been dropped with the 10.8 release. And it's pronounced « Oh-Ess-Ten », by the way. Yes, I am a nitpicker. I know... ) Please note JDeveloper 11g R2 is not certified either. On any platform. It will generally work, but there are known issues with ADF Mobile. Personally, I would recommend to wait for 12c before going to JDK 7.  Now, suppose you have installed Oracle's JDK 7 on your Mac. JDeveloper will not run on it. It will even not install. Susan and I discovered this the hard way while setting up the ADF Mobile hands-on lab we ran at the UKOUG 2012 conference. The lab was a great success nevertheless, attracting nearly a hundred delegates. It was great to see the interest ADF Mobile already generates, especially among PL/SQL Developers and DBAs. But what did we do to make it work?  While Java Update 2012-006 removed the Java Preferences panel, it leaved in place OS X's command-line Java infrastructure. Thus, it is possible to invoke the Apple JDK 6 to start the JDeveloper installer. Suppose your user is named « Fred », and that the JDeveloper installer is on your desktop. You can execute the following command in a terminal window (on a single line) to start the installer:  /usr/libexec/java_home --version 1.6.0  --exec java -jar /Users/Fred/Desktop/jdevstudio11116install.jar  The JDeveloper installer, being provided a valid JDK reference, will set up the IDE and embedded WebLogic Server instance accordingly. Clever engineering at its finest!

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  • How do I fix "Grub Rescue"? Uninstallation?

    - by Julien Mackenzie
    I am currently dual-booting windows 7 and Ubuntu. I am about to sell my computer so I was following a tutorial on how to uninstall Ubuntu. I had deleted my partitions like the tutorial said and now I get this: error : no such partition grub rescue_ I am now looking for help on Getting out of this "grub rescue" Uninstalling Ubuntu and/or factory reset Notes -Newbie - No windows disks -I have spare CDs

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  • Building SANE from git-source produce backend missmatch on 12.04 even if built locally

    - by deinonychusaur
    It seems to me that with Ubuntu Precise Pangolin it is all but easy to do a proper install of SANE from source (git-repo). I've found other scanning issues trying to find an answer to this, where the output people posted seems to indicate they suffer the same issue (unknowingly). If I run on a fresh install of Ubuntu 12.04 with compiled SANE source from the git I get: $ scanimage -V scanimage (sane-backends) 1.0.24git; backend version 1.0.22 (I basically followed the instructions on http://ubuntuportal.com/2012/02/how-to-get-an-canon-canoscan-lide-100-scanner-to-work-in-ubuntu-11-10linux-mint-12.html since I didn't find any other information making sure that sane was not installed prior to installation.) My primary interest is the epson2-backend. In 1.0.22 it offers the wrong TPU settings for Epson V700 (TPU2-mode wasn't supported in 1.0.22, and the scanner is useless to me if I don't have the TPU2-support). Since if I ask it to enter transparency mode, it shows 1.0.22 behaviour, it implies that the epson2-backend comes from 1.0.22 and not 1.0.24 even though I just built it. If I install SANE with prefix to a local folder and run that version of scanimage it still produces the mismatch. However, on another computer where I installed a custom 1.0.22 build of SANE prior to upgrading to Ubuntu 12.04, I can build and install the same SANE-git locally and have it correctly match backends: $ ./SANE/bin/scanimage -V scanimage (sane-backends) 1.0.24git; backend version 1.0.24 $ scanimage -V scanimage (sane-backends) 1.0.22; backend version 1.0.22 On this computer the 1.0.24 works correctly in finding TPU2 on Epson V700. So what am I missing/doing wrong? (And I want to replace 1.0.22 with 1.0.24 for the whole system, the local build was just debugging.) Any help would be much appreciated. Edit 1: Just tried compiling SANE using this instruction on Ubuntu 10.04 and it worked like a charm. However, when I upgraded to 12.04 (really would like to run 12.04), SANE was downgraded to 1.0.22. When trying the same set of instructions on 12.04 I was still out of luck -- the backend missmatch was there again (and I do have libusb-dev installed) Edit 2: I updated to Ubuntu 12.10 which now has the 1.0.23 SANE drivers. I haven't dared trying to compile from source on 12.10 since 1.0.23 is good enough for me. This is just a work-around and I would still like to know what's up with Ubuntu 12.04.

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  • After upgrading to 12.10 usb drives fail to mount

    - by John Shore
    Following upgrade to 12.10, my usb drives - both pen drives and a usb hard drive - fail to mount with the error message: Unable to mount *name of drive* volume Adding read ACL for uid 1000 to '/media/*my home file name*' failed: Operation not supported This is on a desktop Dell Inspiron 530. I also have a Dell Inspiron Mini 10 netbook which I also upgraded to 12.10 (slightly smaller installation on a flash hard drive). all devices mount automatically without problems on this computer.

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  • Ubuntu 12.04 Overheating HP Pavillion dm4 3011tx

    - by gevvek
    I have tried installing Ubuntu 12.04 on my HP Pavilion dm4 3011tx and after a few minutes the fans start to work very fast and my laptop starts to heat up; The CPU temperature got up to 70 degrees and was still rising before I turned the computer off. I installed the graphics drivers for my AMD Raedon graphics and tried switching to the integrated graphics but that didn't make a difference I have also tried Fedora and Linux Mint and they do the same thing. Can anyone help?

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  • Interesting Topics in Comp. Sci. for New Students?

    - by SoulBeaver
    I hope this is the right forum to ask this question. Last friday I was in a discussion with my professors about the students' lack of motivation and interest in the field of Computer Science. All of the students are enrolled, but through questionnaires and other questions that my professor posed it was revealed that over 90% of all enrolled students are just in it for the reward of getting a job sometime in the future (since it's a growing field with high job potential) I asked my professor for the permission to take over the first couple of lectures and try and motivate, interest and inspire students for the field of Computer Science and programming in particular (this is the Intro to Programming course). This request was granted and I now have a week to come up with a lecture topic for my professor's five groups. My main goal isn't to teach, I just want to get students to be as interested in the field as I am. I want to show them what's possible, what awesome magical things have been done in the field, the future we are heading towards using programming and Comp. Sci. Therefore, I would like to pose this question: I have a few topics, materials and sample projects that I would like to talk about: -- Grace Hopper (It is my hope to interest the female programmers in the class. There are never more than two or three per group and they, more than males, are prone to jumping ship and abandoning Comp. Sci.) -- The Singularity Institute -- Alan Turing -- Robotics -- Programming not as a chore or a must, but the idea that we are, at our core, the nexus to which anything anybody does in the digital world is connected to. We are the problem solvers; we assemble all the parts together and we are the ones that, essentially, make the vision a reality. -- Give them an idea for a programming project which, through the help of the professor, could be significant to every student (I want students to not only feel interested in the topic, but they should feel important, that what they do here makes a difference) Do you have interesting topics worthy of discussion, something I can tell the students which they can get interested about? How would you approach the lecture? If you had 90 minutes worth of time to try and get students interested in the project, what would you do?

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  • Why can't my pc and iPhone find each other via Bluetooth?

    - by Torben Gundtofte-Bruun
    I've got Bluetooth enabled on both the computer and the iPhone, and both devices can see my Bluetooth headset so this confirms that Bluetooth itself works. But when I let either device look for other devices, they find nothing (when the headset is off). I'm using 11.10 with all the latest updates. I have not installed any special or additional Bluetooth software; only whatever Ubuntu provides by default.

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  • Purchasing Laptop Case Online

    "Laptops are meant to be carried around but to achieve the ultimate ease of carrying it from one place to another and to protect the computer as well as precious information on it you need a quality ... [Author: Jeremy Mezzi - Computers and Internet - May 29, 2010]

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  • How to utilize miniMax algorrithm in Checkers game

    - by engineer
    I am sorry...as there are too many articles about it.But I can't simple get this. I am confused in the implementation of AI. I have generated all possible moves of computer's type pieces. Now I can't decide the flow. Whether I need to start a loop for the possible moves of each piece and assign score to it.... or something else is to be done. Kindly tell me the proper flow/algorithm for this. Thanks

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  • 24 Hours of PASS (September 2014): Summit Preview Edition

    - by Sergio Govoni
    Which sessions you can expect to find at the next PASS Summit 2014 ? Find it out on September 09, 2014 (12:00 GMT) at the free online event: 24 Hours of PASS: Summit Preview Edition.Register now at this link.No matter from what part of the world you will follow the event, the important thing is to know that they will be 24 hours of continuous training on SQL Server and Business Intelligence on your computer!

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  • Screen will not load in 11.04 alpha 3

    - by Saad Inam
    After updating from 10.10, there were no problems everything updated fine. I restarted the computer and selected Ubuntu from the boot menu but nothing came. it only shows a a black screen and it allows me to type. I have a feeling that this might be to do with the graphics driver, but how would i get a driver if nothing shows? I have ati radeon 5450 which runs with Catalyst Control Center on Windows. How can fix this?

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  • Sync profile/data/software for multiple computers?

    - by ultimatebuster
    Is it possible to sync all the user settings (interface settings, program settings), as well as programs for multiple computers? Data is not as important, though the settings (which is technically data, but not that kind of data, like music, files...) and applications are. Also, it will not sync the drivers. (Example: 1 computer uses bumblebee and the other uses ATI catalyst, and maybe there's different network drivers.. etc.)

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  • Bridge Laptop's Ethernet to Wireless

    - by Kalphiter
    The laptop wirelessly connects to my router, while the desktop is connected to the laptop with an ethernet wire. The desktop successfully can use the internet if I set the connection to be shared on the laptop. The problem is, I need the laptop to forward the desktop's packets across the link unmodified, so the desktop is on the same network as the router. The desktop needs its IP assigned by the router, so that I can access it from another computer as "192.168.1.8".

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  • When checking to see if I could update anything, get error message crossover and cannot open update manager

    - by Heather
    I am running ubunt 11.10 only on my computer. I had it off for a few months and wanted to see if it needed any updates. When I try to click on Update Manager, I get the following error message: Could not initialize the package information An unresolvable problem occurred while initializing the package information. Please report this bug against the 'update-manager' package and include the following error message: 'E:Opening /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-games_ubuntu.list - ifstream::ifstream (13: Permission denied)'

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  • How Does Microsoft Office 2010 Compare?

    The release of the new Microsoft Office suite isn';t the most exciting thing in the world, the fact that it is used nearly every day on my work computer doesn';t help matters. Nevertheless, I thought i... [Author: Chris Holgate - Computers and Internet - April 14, 2010]

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  • How do I install lubuntu? (kernel panic)

    - by melvincv
    Please help me install Lubuntu 12.04 i386 on an old computer. I select the "Try Lubuntu without installing" and it crashes with a kernel panic. Rarely I do get to the live OS, but soon the display goes blank. The messages log gives me '[drm] ERROR GPU hung/wedged' The specs are: Pentium 4 2.4GHz 1GB DDR RAM 40GB PATA HDD Intel 845GL chipset (8MB framebuffer, 64MB shared system memory set in the BIOS)

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  • How to auto-unlock Keyring Manager in 12.10?

    - by Torben Gundtofte-Bruun
    How can I auto-unlock the Keyring Manager in 12.10? This answer for 11.10 doesn't seem to apply because the Keyring Manager looks different in 12.10 so I can't follow the instructions. I have set up my machine to automatically log in to my account. I don't mind the lesser security of having the keyring automatically unlocked. (This is still a home desktop computer of a simple user, not a missile launch system.)

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  • Week in Geek: Microsoft Warns of First Critical Security Flaws in Windows 8 & RT

    - by Asian Angel
    This week’s edition of WIG is filled with news link coverage on topics such as Mozilla Firefox turns 8 and Android turns 5, Windows (File) Explorer is the app that crashes most on Windows 8, Classic Mode (Session) will be dropped from GNOME 3.8, and more. 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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  • XNA 4.0 Point Vertex Rendering

    - by luis
    I have a buffer of about 134 million particles and a very powerful computer to render them smoothly but I am getting an error when trying to render them as primitive lines it says I cannot render more than around 1 million. I wonder how can I do this, also if is there a better way to render this other than with lines, I'm comfortable with having 1 pixel points or anything as long as the vertices are shown all the time. I'm basically just plotting the points. thanks.

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  • install to USB without touching windows MBR

    - by Robert
    I would like as full of an install as possible (most notably no casper, just straight on the drive) on a USB stick, but I'm not allowed to touch the current configuration of the computer I'll be running it on at all (except of course changing the boot options to boot from usb). Most guides I read are about getting a live install with persistence on USB, or (I think) still replace the MBR with GRUB. Is there any way to combine the two, and not touch the underlying system?

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  • Problem with pulseaudio / Skype / and sound Output

    - by Ash Mafiaboy SysemaicallyAffec
    Ok, i got Ubuntu 12.04 , the problem come with the sound driver, Ok, may time when my Ubuntu restarted its seem that the driver is being disable, that one problem, the other problem is that when my mike and sound is working find on skype, and when i am trying to play some music on my computer specially when i am on video call we can heard any sound out . even when i play a song from youtube i got to sign off from youtube then, its work, i got a 5.1 suround and i wonder if somebody can help me out

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