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• gt 555m instead of gt540m

  - by gangov

  Im gonna be really short. My Acer Aspire 5755G lap top has a Nvidia geforce gt 540m. But when i start lspci | grep VGA it shows me the following: ^[[Agangov@gangov-Aspire-5755G:~$ lspci | grep VGA 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: nVidia Corporation GF106 [GeForce GT 555M] (rev a1) Im really not familiar with the additional drivers in ubuntu. Can somebody tell me what should i do you my VGA properly?? Thank you in advance.

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• Help! Installer crashing

  - by Mike

  I had ubuntu 12.04 installed on a Satellite l635. I wanted to start over with a fresh install because I had experimented with a bunch of different things, and computer was getting glitchy and random freezes. I used the same iso I used for original install, and it keeps say the installer crashed with a erron5 input/output error. Tried an older iso for 11.10 I had used in the past with same issue... To see if it was disc or computer (not a great idea) I tried the 12.04 iso on another laptop. Now I have 2 laptops with no os. Both discs however live boot on both systems. PLEASE HELP! I've searched forums and can't find the same problem.

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• What should I know before starting my first consulting project?

  - by bo4sho

  I just got a job for a small project. I have all the relevant skills and knowledge to complete the project, but I am concerned about getting screwed over because this is my first time working on a consultant basis. We have already agreed on an hourly wage that I'm happy with, so that's not an issue. I'm just worried that since this is my first time working on my own, I'm going to make some mistakes that could be easily avoided if I had someone give me advice beforehand. This is what I already know to do/not do: -Get everything in writing -Limit the scope of the project. Once I start the actually coding, all features should be frozen. -Make sure to communicate constantly with my client. In addition he wants an max hourly cap. What is a good way to come up with one? What else do I need to know?

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• creating a simulation game, what be needed? [closed]

  - by Jordan

  I am a beginner in game development. As a part of learning and fun, want to create a game in java-script and html5. I am planning a game that we were used to play in childhood, that is "new business"- a monopoly game, in that we used to buy ,rent,sell places and bank we get some money to play and etc. are features. Its just simple ludo like game. So can anyone suggest me from where to start? what will be the designing? Is it possible to create it only in a html5 and java-script.

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• How to estimate what kind of server resources you will require at launch?

  - by Anonymous -

  How can I go about/what is the best way of estimating what kind of server resources I will require at the launch of a new project. Let's say for instance I'd gathered 10k users email addresses that opted-in to be informed when we launch. I didn't really want to go for a cloud solution at the moment. Should I just get a reasonably-specced dedicated server and go from there, or should I be looking at services like Amazon EC2? Or should I start out with EC2 for the fully-flexible resources, then once things stabilize I'll be able to sort a fixed hosting deal that is adequate elsewhere? Sub-question: What's a good way of estimating what load a particular application will place on the server per user?

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• New "How do I ..." series

  - by Maria Colgan

  Over the last year or so the Optimizer development team has presented at a number of conferences and we got a lot of questions that start with "How do I ...". Where people were looking for a specific command or set of steps to fix a problem they had encountered. So we thought it would be a good idea to create a series of small posts that deal with these "How do I" question directly. We will use a simple example each time, that shows exactly what commands and procedures should be used to address a given problem. If you have an interesting "How do I .." question you would like to see us answer on the blog please email me and we will do our best to answer them! Watch out for the first post in this series which addresses the problem of "How do I deal with a third party application that has embedded hints that result in a sub-optimal execution plan in my environment?"

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• Browser game in JSP? [closed]

  - by Constant

  I want to develop a browser-game (like ogame, travian) and I have some doubts in which technologies should I use. I was thinking in a server-side in JSP,Java and a client-side in HTML (or HTML5 if I learn to give it good use). Do you think my choices are right? I would like to make a board where many players could move simultaneously between tiles or squares. Do you think is possible in JSP or I should start with other language? Any suggestion aprecciated, and apologies for my english. Thank you! Regards!

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• First set up of a server need some help

  - by mike551345

  i want to start a file share server. i need help on how to get it started and running. i plan on using thing a lot and also maybe run a small web page from the server. plz help me figure out what i should install for packages. also the file share i would like to have a account login and stuff. also im running a 12.04 ubuntu server. it has a 1.4 gb of ram, with a 80gb harddrive (for now), and running a Pentium 4 possessor with like 1.2GHz not sure exactly but know it small.

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• Help deciding on an area of study for a PhD [closed]

  - by ale

  I am going to start a PhD in about 1 year. My undergraduate degree is in computer science and my master's is in artificial intelligence. I want to get ideas about what's going to be hot in say 5 years i.e. what could I spend 3-4 years studying to potentially have expertise that will be applicable to industry and the computing world ? Impossible to answer factually but some ideas and thoughts would be great. I have narrowed my ideas down to AI (yes, even more AI) and information security. AI seems to becoming popular again but security is always a going to be useful. From a career point of view, if I were to stay working in software development then this might actually be the best move but I've always wanted to do a PhD! Many thanks :).

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• How to make a jar file run on startup & and when you log out?

  - by RanZilber

  I have no idea where to start looking. I've been reading about daemons and didn't understand the concept. More details : I've been writing a crawler which never stops and crawlers over RSS in the internet. The crawler has been written in java - therefore its a jar right now. I'm an administrator on a machine that has Ubuntu 11.04 . There is some chances for the machine to crash , so I'd like the crawler to run every time you startup the machine. Furthermore, I'd like it to keep running even when i logged out. I'm not sure this is possible, but most of the time I'm logged out, and I still want to it crawl. Any ideas? Can someone point me in the right direction? Just looking for the simplest solution.

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• How to get Unity interface on my PC?

  - by Prarobo

  I downgraded by PC to 11.04 from 12.04 2 days ago. I was using the Unity interface and I am quite used to it. Today when I started my PC, I got a message (after the login screen showed) saying that my system does not support Unity and it automatically defaulted me to the classic interface. Now when I start my PC, even when the interface choice selected is Ubuntu and not Ubuntu Classic, it falls back to the classic interface. Any advice on how to get Unity back?

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• Keyboard activation bug

  - by Skydreamer

  I'm using Ubuntu's last version and there's still a little problem on my installation (already on previous versions). When I start the computer and reach the login screen, I have to wait about a minute to be able to begin to use my keyboard. That's not a real problem but that's kind of annoying. I've tried some things such as a lsusb via ssh and it worked and activated the keyboard without waiting. So I've tried to put it in the crontab (with @reboot) but it doesn't really work. Has someone got an idea how to solve this bug ? Thank you in advance.

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• How do I compile ndiswrapper?

  - by Aphrodite

  I have been working for a good 2 days now trying every forum post i could find when it comes to ndiswrapper. I can get it installed but get the error module ndiswrapper not found keeps coming up. In my travels, this is a bug in the installer and I have to build it from source. I have no clue how that works... Is there anyone out there that can give me an idea of where to start? I don't even know where to begin... Thank you in advance!!!

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• WUBI Install freezes on startup

  - by Benjamin

  Ok, I don't completely know of all the specifications, but installing Ubuntu 12.04.1 on my cousin's old Windows XP computer, an old Compaq from around 2004. After install via Wubi, and going through several unsuccessful install attempts, I finally get the start up screen of Ubuntu, and it freezes once you get to the pretty default wallpaper. Not even a login screen. Just instant freeze! We've left it on for about a day now and its still frozen, any help? (Please reply ASAP, he wont stop bugging me about it)

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• how to un-install a special driver/kernel in 13.04

  - by hako

  I have tried to install a special ATI driver using a method described in http://debianhelp.wordpress.com/2012/09/28/to-do-list-after-installing-ubuntu-13-04-aka-raring-ringtail-operating-system/ Details: Alternative ATI Legacy Video Driver PPA installation for (for < 5000 series cards): sudo apt-get remove --purge fglrx fglrx_* fglrx-amdcccle* fglrx-dev* sudo add-apt-repository ppa:makson96/fglrx sudo apt-get update sudo apt-get upgrade sudo apt-get install linux-headers-generic fglrx-legacy sudo aticonfig --initial And then reboot. There were a couple of warnings at "sudo apt-get install linux-headers-generic fglrx-legacy" with update-alternatives. But, at the last step I got "aticonfig: No supported adapters detected". Unity does not start anymore. I only can login to Gnome. How can I get back to a working system?

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• "Google files": Building a web interface to find/ack/grep

  - by user27915816

  I am working on a project where we would like to have build a web interface that gives the user the ability to "Google" files in a directory in a remote machine. For example, the user would type a string in a box, and then the system would find all files that contain that string and present them in the browser. The system would then give the user the ability click on any of the files to open them/display them in the browser. We want to avoid reinventing the wheel if possible, but don't really know where to start (none of us in the team have much experience building websites). What software packages, libraries or tools exist that can help us get this done?

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• Introduction to the SQL Server Analysis Services Neural Network Data Mining Algorithm

  In data mining and machine learning circles, the neural network is one of the most difficult algorithms to explain. Fortunately, SQL Server Analysis Services allows for a simple implementation of the algorithm for data analytics. Dallas Snider explains 24% of devs don’t use database source control – make sure you aren’t one of themVersion control is standard for application code, but databases haven’t caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out…

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• Algorithm for Learning development

  - by user9057

  Hi all, This is a fairly general question. I know a bit of Perl and Python and I am looking to learn programming in more depth so that once I get the hang of it I can start developing applications and then websites. I would like to know of an algorithm (sequence of steps :)) that could describe my approach towards learning programming in general. I have posted small questions on Perl/Python and I have recieved great help from everyone. Note:- I am not in a hurry to learn. I know it takes time and that's fine. Please give any suggestions you think are valid. Also, please don't push me to learn Lisp, Haskell etc - I am a beginner.

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• Which tasks should a beginner, intermediate and advanced rails developer be able to complete?

  - by raouldeveloper

  I have been programming ROR for about a year now, and I think I am ready to start working on a project for someone else. The problem is that job postings for contractors don't really tell you which specific tasks you should be able to do at different experience levels (in rails and other technologies), so I don't know where to pitch myself. I think I am somewhere between junior and mid-level, but who knows? So my question is: Which actual tasks should an junior programmer be able to do at, say, $35 an hour, which actual tasks should an intermediate programmer be able to do at, lets say, $75 an hour, and which actual tasks should an advanced programmer be able to do at, oh say, $140 an hour? One or two examples should suffice.

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• Connect to a VPN from a Virtual Machine

  - by kaharas

  I am running an Ubuntu ditro inside a VMWare virtual machine with a bridged connection on a windows 7 host. What I am trying to do is to have the virtual machine connect to a VPN, but I'm not having much success. At first, the system was using wicd, but I replaced it with network-manager who's supposed to have OpenVPN support. The problem is, even tho i've purged the wicd installation, there're connections shown in the network manager, and still, I'm able to access the net. I've also added the openvpn data in the network manager tab, but it's shown as never used. PS: when I try to stop and start the NetworkManager service, an error message pops up telling me that there's not such a service, but apt-get tells me i've already installed it...

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• 12.04 - sound is laggy when running games through Wine

  - by orzechowskid

  Lenovo U400 Wine 1.5.5 Ubuntu 12.04 with all updates applied I'm experiencing severe (~500ms) audio lag in all games run in Wine. Portal 2, Half-Life, World of Goo, and Fallout are all exhibiting this problem. When I run winecfg though and click the "Test Sound" button at the bottom of the Audio tab, the sound effect appears to play immediately. So I'm not sure what's going on. I don't think it's a problem with PulseAudio by itself since totem videos and Youtube clips both play in perfect sync. Anyone have any ideas on where to start fixing this? thanks! (edit: I thought this was limited to Steam games but I installed a non-Steam game and I now see that's not the case. I get audio lag in other apps too.)

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• Ubuntu thinks I have two displays

  - by ResidentBiscuit

  When I first installed Ubuntu I noticed that my mouse would flicker a lot, which caused me to investigate. I remembered back when I ran Fedora I had an issue where it thought I had two displays (hp-dv7 4285dx laptop). In Fedora, this didn't cause any issues. In Ubuntu, it causes the mouse the flicker a lot. The fix I've been using is to just go into settings displays and disable the display that doesn't actually exist. The only problem is that this is not permanent. Each time I start up Ubuntu, I have to go back in and disable this display. They're each just titled "Built-in Display", and have the same resolution. My laptop does have two graphics cards: one on-board and one dedicated. I'm not sure if maybe that is causing is an issue? Any guidance towards this would be great. Thanks!

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• Misused mke2fs and cannot boot into system

  - by surlogics

  I installed Ubuntu with WUBI in Windows 7 64bit, and I had installed Mandriva 2011 with a disk. I tried to learn Linux with Ubuntu and misused mke2fs; after I reboot my computer, Windows 7 and Ubuntu has crashed. As I have Mandriva, I boot into Mandriva and found # df -h /dev/sda7 12G 9.8G 1.5G 88% / /dev/sda2 15G 165M 14G 2% /media/logical /dev/sda6 119G 88G 32G 74% /media/2C9E85319E84F51C /dev/sda5 118G 59G 60G 50% /media/D25A6DDE5A6DBFB9 /dev/sda9 100G 188M 100G 1% /media/ae69134a-a65e-488f-ae7f-150d1b5e36a6 /dev/sda1 100M 122K 100M 1% /media/DELLUTILITY /dev/sda3 98G 81G 17G 83% /media/OS # fdisk /dev/sda Command (m for help): p Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xd24f801e Device Boot Start End Blocks Id System /dev/sda1 2048 206847 102400 6 FAT16 /dev/sda2 * 206848 30926847 15360000 7 HPFS/NTFS/exFAT /dev/sda3 30926848 235726847 102400000 7 HPFS/NTFS/exFAT /dev/sda4 235728864 976771071 370521104 f W95 Ext'd (LBA) /dev/sda5 235728896 481488895 122880000 7 HPFS/NTFS/exFAT /dev/sda6 727252992 976771071 124759040 7 HPFS/NTFS/exFAT /dev/sda7 481500243 506674034 12586896 83 Linux /dev/sda8 506674098 514851119 4088511 82 Linux swap / Solaris /dev/sda9 514851183 727246484 106197651 83 Linux Partition table entries are not in disk order I think I may used the following command mke2fs -j -L "logical"/dev/sda2 but I had forgotten what kind of partition it was before I transfered it into ext3. perhaps ntfs Data was not lost, and I can view my files as I could in Windows. In Mandriva, there are following disks: 117.2 GB hard disk, files in it is the same as my Windows D:, and Ubuntu was installed in it; 119.0 GB hard disk is my G:, with my personal files in it; 12.0 GB is the same with Mandriva / (with means root), 101.3 GB hard disk with nothing but lost+found; DELLUTILITY should be Dell computer utilities pre-installed in my computer; logical is the disk which I had spoiled, I can view nothing but lost+found; and OS is the C: in my Windows. After I boot, grub lets me choose Mandriva or Windows. I chose Windows and it tells me: FILE system type unknown, partition type 0x7 Error 13: Invalid or unsupported executable format I doubt something wrong with windows MBR or something # cat /boot/grub/menu.lst timeout 5 color black/cyan yellow/cyan gfxmenu (hd0,6)/boot/gfxmenu default 0 title linux kernel (hd0,6)/boot/vmlinuz BOOT_IMAGE=linux root=UUID=199581b7-ac7e-4c5f-9888-24c4f213cad8 nokmsboot logo.nologo quiet resume=UUID=34c546e4-9c42-4526-aa64-bbdc0e9d64fd splash=silent vga=788 initrd (hd0,6)/boot/initrd.img title linux-nonfb kernel (hd0,6)/boot/vmlinuz BOOT_IMAGE=linux-nonfb root=UUID=199581b7-ac7e-4c5f-9888-24c4f213cad8 nokmsboot resume=UUID=34c546e4-9c42-4526-aa64-bbdc0e9d64fd initrd (hd0,6)/boot/initrd.img title failsafe kernel (hd0,6)/boot/vmlinuz BOOT_IMAGE=failsafe root=UUID=199581b7-ac7e-4c5f-9888-24c4f213cad8 nokmsboot failsafe initrd (hd0,6)/boot/initrd.img title windows root (hd0,1) makeactive chainloader +1 I can boot into Linux, but not Ubuntu, it boot into Mandriva. I don't have a boot disk. Help me find a way to make it work again.

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• Can't boot - "Waiting for Network Configuration"

  - by user213017

  After an update on 13.10, my PC won't boot Ubuntu any longer. It displays the infamous "Waiting for Network Configuration" message and then hangs. I can go into recovery mode, and choose "Start networking" and then go to a root prompt, and that works fine. Ping works. /etc/network/interfaces contains just the two lines "auto lo" and "iface lo inet loopback". I've double-checked that my network is working, the cable is working (it works on another PC) and the network card seems to indicate a connection. Any suggestions on how to get my PC booted again? Right now I'm limited to a root shell prompt.

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• Distro that I can load to ram?

  - by NullUserException

  Is there a modified version of Ubuntu that I can choose to load to RAM on start up? Kinda like the LiveCD, but that can be easily modified (ie: I can install stuff) when I choose to boot from disk. The idea is to install it to a USB drive. I know there's something similar but slax is lacking in many departments. A "full" version Ubuntu would be better. A LiveUSB installation seems to be pretty close to what I want, but apparently I have to choose whether or not it will be persistent by the time I install it. I want to be able to choose that every time I boot.

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