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• Can't Boot Ubuntu, video drivers or x-server problem?

  - by ZacharyH

  I was uninstalling some programs that I installed to try and get my iPod touch working with Ubuntu (I gave up on that) when ubuntu just crashed. Now after I choose ubuntu in GRUB, it gives me a screen that says "Ubuntu 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" It was working just fine before I started to uninstall those programs. I think that I might have uninstalled something necessary to the system. If I click OK on the screen, it gives me options to reconfigure, troubleshoot, exit to console, or restart X. But no matter what I choose I still can't boot into ubuntu - I get stuck looking at the splash screen which stalls forever. I was receiving support from one of my mate's and he was doing something with the LiveCD, and now the message doesn't pop up any more, I just get stuck at a never ending splash screen. Any help would be appreciated, thanks!

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• ia32-libs will not install due to dependency problems

  - by P-I H

  When I upgraded to 12.04 all the 32bit libraries was removed. When I used Synaptic to upgrade, Synaptic installed all the 32bit libraries. When I later used apt-get to install a ppa, I was told to use autoremove to remove all the 32bit libraries, which I did. After this Synaptic wanted to install the libraries again, but now I marked ia32-libs forinstead. The installation works fine, but I am not able to install Skype as Skype depeneds on ia32-libs. When I try to install ia32-libs, I get this error printout ia32-libs: Depends: ia32-libs-multiarch

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• If you should only have one assertion per test; how to test multiple inputs?

  - by speg

  I'm trying to build up some test cases, and have read that you should try and limit the number of assertions per test case. So my question is, what is the best way to go about testing a function w/ multiple inputs. For example, I have a function that parses a string from the user and returns the number of minutes. The string can be in the form "5w6h2d1m", where w, h, d, m correspond to the number of weeks, hours, days, and minutes. If I wanted to follow the '1 assertion per test rule' I'd have to make multiple tests for each variation of input? That seems silly so instead I just have something like: self.assertEqual(parse_date('5m'), 5) self.assertEqual(parse_date('5h'), 300) self.assertEqual(parse_date('5d') ,7200) self.assertEqual(parse_date('1d4h20m'), 1700) In the one test case. Is there a better way?

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• How can I explain object-oriented programming to someone who's only coded in Fortran 77? [closed]

  - by Zonedabone

  Possible Duplicate: How can I explain object-oriented programming to someone who’s only coded in Fortran 77? My mother did her college thesis in Fortran, and now (over a decade later) needs to learn c++ for fluids simulations. She is able to understand all of the procedural programming, but no matter how hard I try to explain objects to her, it doesn't stick. (I do a lot of work with Java, so I know how objects work) I think I might be explaining it in too high-level ways, so it isn't really making sense to someone who's never worked with them at all and grew up in the age of purely functional programming. Is there any simple way I can explain them to her that will help her understand? Thanks for the help in advance.

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• Python (v2.7) requires to install plugins to create media files of the following type: Vorbis encoder

  - by LibraryGeekAdam

  This is the message I get when I try to rip a cd from any player. I usually use the stock Rhythmbox but have tried others to no avail. I have just updated to 12.10 from 12.04 and I had no problems in 12.04. I have read the other posts and have switched to the Main Server in the Software Sources menu. I have installed Ubuntu Restricted Extras. Nothing seems to help. I would appreciate any help. "Python (v2.7) requires to install plugins to create media files of the following type: Vorbis encoder" Thanks!

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• Only one resolution available in Xorg.conf

  - by Kévin Guilbeault

  I recently upgraded to Ubuntu 12.10 and when I try to change my resolution in NVIDIA X server settings, I only get the native one (1600x900). When I had 12.04 installed, all resolutions were available in the drop down list. My goal is to have twinview working again. I used to set my two screens to twinview and clones, using my HDTV resolution (1360x768) which was previously available in 12.04 for my laptop screen too. In 12.10, I tried to install all of the NVIDIA drivers available except the nouveau driver. I tried to add a new mode using Xrandr --newmode / --addmode, but it didn't work; it coudn't detect my output. I'd like to know if this is a known bug and if there's something to do with that. Thanks!

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• Trouble with Ubuntu 12.10 install/evaluation

  - by Mike H

  I am trying to install Ubuntu 12.10 onto my Compaq Presario SR1215CL. I downloaded ubuntu-12.10-desktop-i386.iso file using BitTorrent and burned it to a blank DVD-RW. When I boot the computer with the Live Disk in the disk tray I am able to get to the Welcome screen. If I click on "Try Ubuntu" I am left at a blank screen except for the desktop background. There are no menus, toolbars, icons, etc. If I press Ctrl+Alt+Delete at this stage I am able to log out of the Live Session, but am unable to log back in. If I click on "Install Ubuntu" instead, I am able to proceed fairly far into the installation process, but eventually it quits and drops me to the same blank screen as above. I'm not sure at which stage the installer quits, but it does ask me to identify the issue and solve the problem myself from inside the Live Session, which doesn't work. Does anyone have some suggestions on how to get Ubuntu installed and working?

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• Kindle for PC via Wine

  - by Mollikins

  I've been checking out all the free books on Amazon and I really want to get the Kindle PC program running on my computer so I can download, read, and manage my e-books. I realize that Calibre can be used to manage e-books and I do have that downloaded. However, Amazon won't let me download ebooks unless my PC is registered in their little Kindle program and I'd like to just keep things streamlined by playing by the rules for once. I've viewed so many tutorials and advice for setting it up. I have Wine, I have Kindle for PC, I set it to Win98, all of that. However, when I try to open KindlePC from the Wine menu or from the desktop icon, nothing happens. No error messages, nothing. I don't know what might be wrong. Please let me know if you have any experience with this and any suggestions!

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• Internet keep dropping in Ubuntu 12.04

  - by Kokuryuu

  I am having an issue with my Ubuntu, I keep getting "server not found" errors when I try to go online, I have tried pinging my DNS and Goggle, and it seems like no packets are dropped, but still my Internet is not working Also my other PCs in the house have working Internet connection. I am sure there is no firewall active here, also nothing on my router is blocking, and I checked cables. I have no issues in the same PC in Windows. It is only in Ubuntu. Any ideas?

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• DHCP won't start / subnetting

  - by user114371

  I recently changed the IP address on an Ubuntu 12.04 server I have in my lab, which is running isc-dhcp-server. After doing so and modifying the dhcpd.conf file, my dhcp service would not start. I basically used the same configuration, except I modified everything to use /25 scopes rather than /24. When I try to start / restart the service, I see the following: MY@ubuntuserver:~$ sudo service isc-dhcp-server restart stop: Unknown instance: isc-dhcp-server start/running, process 20918 It looks like it starts, but it isn't actually running and Webmin states that the DHCP service is not running. So my question is, does isc-dhcp-server support subnetting (CIDR) style scopes, or must they be class A / B / C scopes (doesn't seem likely)? I've double checked the interface reference (this is a VM with only one defined eth0 interface) and everything else I can thing of.

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• Crafting an effective php/web programmer job post template [closed]

  - by Tchalvak

  I am looking to create a job post to get a satisfactory assistant programmer / templater. Specifically, a php & web programmer. I am, however, afraid of forgetting important things. So, are there resources you can suggest for templates for things to ask and things to tell in a job post for a programmer? Surprisingly, I wasn't able to find similar questions on this site, so there may be duplicate questions out there that I could use but just didn't find. Right now I know that my -requirements- are so generic that they're going to get me in trouble with a spam of applications. e.g. the candidate must know php, must be able to seperate php from html. So I'm looking for criteria that are must-haves, must-mentions, or a general template to try to avoid a "lemon". I also started a gist to work on a job post, comments/edits would be excellent: https://gist.github.com/2906808

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• My website google index suddenly increase and also suddenly reduced

  - by Jeg Bagus

  Yesterday before i sleep, i check my site index. i get about 50 index on google. today morning when i wake up, i get 250 index on google. and my page ranking better on several keyword. than i add 1 page and 2 canonical link, add 404 page header, and resubmit sitemap. and after 2 hour, its going down to 50 index again. and my page ranking just rolled back to previous day. what is actually happen? is it because i resubmit sitemap? until now, google still crawl my website. do they try to refresh the index?

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• GRUB install error

  - by Rohit

  Whenever I try to install Ubuntu, I get a fatal error that reads: 'Executing'grub-install /dev/sda' failed. This is a fatal error.' Its the same as this, but my graphics appear to be running fine. Also, I'm a complete novice at this and really need simple instructions to understand what I'm doing. I've tried booting from a LiveCD and a USB stick. I don't want to dual boot it because its an old computer that I erased XP and plan on only using Linux on it. When I used a USB stick and set the persistent file storage high, I was able to run it, but only as long as the flash drive was plugged in.

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• Programmer's career path

  - by kender

  I've been working as a programmer for the last few years - different companies and freelancing, mostly developing internal-business web applications (well, that's the current model of development, it seems). Besides simple coding I was working on specs, designing applications, and all those around-like things. My question is, what's the career path I should be aiming for? Is it like working on code for the rest of my life? :) Or do programmers make a good manager-position people (I know, those require quite different set of skills) and I should try to improve myself to this direction? I know it's very subjective. Thing is, lately I find myself much more into the designing/working on specs part of the development project then the coding itself. How do you see it? Would you like to go from development to management? Would you like to work on a project with a manager that used to be a coder? Would you like to hire one? :)

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• ubuntu 10.10 maverick Zentyal . do anyone know where i can find its ? / download and install its ?

  - by santosamaru

  I want to installing Zentyal , do anyone know about the maverick version ? cause i got the news , that saying webmin is not available anymore and i have problem with its so that is why i try to change the webmin into Zentyal , but the problem is as i can find the version that they have is For Ubuntu 10.04 (Lucid) mine was ubuntu 10.10 maverick. i have problem with speed connections, that is why i need Zentyal so its will help me to build the squid to cache the webpage so its will help to make faster , lol, please your idea bout problem ,this, thanks.

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• What are the semantics of glRotate and glTranslate's parameters?

  - by Zarkopafilis

  I have been trying to play with OpenGL after watching some tutorials and I don't understand how the glTranslatef and glRotatef functions work. I believe a simple picture would help me. I understand that glTranslatef changes the position of the "camera" (but does it change the position in wich the shapes are getting drawn)? However, I don't understand the rotation concept at all. If I do glRotatef(1,0,0,1) it makes my quad spin around. If I just do glRotatef(1,0,0,0) it makes the quad smaller (further away) but if I try to rotate around the X or Y axis, I get a black screen. I don't understand the angle either. Help would be appreciated.

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• Avoiding "double" subscriptions

  - by john smith

  I am working on a website that requires a bit of marketing; let me explain. This website is offering a single, say, iTunes 50$ voucher to a lucky winner. To be entered in the draw, you need to invite (and has to join) at least one friend to the website. Pretty straightforward. Now, of course it would be easy for anyone to just create a fake account and invite that account so, I was thinking of some other way to somehow find out of possible cheating. I was thinking of an IP check on the newly subscribed (invited) user, and if there is the same IP logged in the last 24 hours, and if that's the case, investigate more about it. But I was thinking that maybe there is a more clever way around this issue. Has anyone ever though about this? What other solutions did you try? Thanks in advance.

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• "Failed to mount Windows share" error in Samba

  - by Ranjith R

  This is the situation. There are 3 machines in the office. The Operating systems on them are respectively, Linux mint Ubuntu 12.04 Windows Vista The Ubuntu (#2) machine is supposed to be the common file server between the machines #1 and #3. Machine #2 has two hard disks. One is a 500 GB NTFS empty drive and the other is a 160 GB ext4 drive. My plan is to make the 500 GB as the file sharing disk. When I share a folder like ~/Documents using Nautilus context menu on machine #2, I can access the files easily on both #1 and #3, but when I try to share some folder on 500 GB disk, I get an error on machine #1 that says Failed to mount windows share I do not mind formatting the drive to ext4 if needed, but I am sure that something simple is wrong. EDIT I took @Marty's comment as a hint and used ntfs-config to configure automount of that partition. It is working now. Thanks

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• Progressbar patterns (Eclipse)

  - by JesperE

  I've struggled quite a bit with Eclipse and progress-monitors to try to have good progressbars which report useful progress information to the user. Inevitably the code gets cluttered with lots of things like if (monitor.isCancelled()) return; ... lengthyMethodCall(monitor.newChild(10)); and all over the place I need to pass a IProgressMonitor as an argument to my methods. This is bad, for several reasons: The code gets cluttered with lots of code which is not relevant to what the function actually does. I need to manually guesstimate which parts of the code takes time, and which parts do not. It interacts badly with automated tests; where much of the information which goes into a progressbar instead should be logged for later inspection. Is there a way out of this? Are there tools which can help me out with one or more of these problems? Should I be looking at Aspect-Oriented Programming tools, or are there other alternatives?

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• Xubuntu LightDM shows blank screen half the time

  - by Sman789

  System info: (will be amended if any more info is asked for) My laptop runs Xubuntu 12.10. As it has a Solid State Drive, /tmp, /var/tmp, /var/log and /var/log/apt are set to tmpfs in the /etc/fstab file - in case this makes any difference. Problem My problem is quite simple. Approximately 50% of boot attempts end in the mouse cursor on a black screen (presumably LightDM failing to load), forcing me to restart and try again. I can access the CTRL+ALT+F1 terminal to reboot the machine, but it's very annoying having to boot and reboot two or three times before one works. Oh, and this problem is the same whether I use the Xubuntu or Unity greeter. Thanks for any help you can give.

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• Is it illegal to forward copyrighted content? [closed]

  - by Mike

  Ok, this may be a strange question, but let's start: If I illegally download a movie (for example...) from a HTTP Web Server, there are many routers between me and the Web Server which are forwarding the data to my PC. As I understand, the owners of the routers are not legally responsible for the data they forward (please correct if I'm wrong). What if I would install a client of a peer-to-peer network on my PC and this client (peer) would forward copyrighted content received from peers to other peers? Hope someone understand what I mean ;-) Any answer or comment would be highly appreciated. Mike Update 1: I'm asking this question because I want to develop a p2p-application and try to figure out how to prevent illegal content sharing/distribution (if forwarding content is really illegal...) Update 2: What if the data forwarded by my peer is encrypted, so I'm technically not able to read and check it?

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• What measures can be taken to make sure Google is aware of the existence of a newly created page?

  - by knorv

  Consider a website with a large number of pages. New pages are published regularly. When publishing a new page the website operator wants to get the newly created paged indexed in Google as soon as possible. The website operator wants to minimize the time spent between publication and indexing. Consider the site http://www.example.com/ with hundreds of thousands of pages. The page page http://www.example.com/something/important-page.html is created at say 12:00. I want to get important-page.html indexed as soon as possible after 12:00. Ideally within seconds or minutes. What options are available to try to get Google to index a specific newly created page as soon as possible?

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• Secure Web Apps from SQL Injection in ASP.Net

  In the first part of this two-part series you learned how SQL injection works in ASP.NET 3.5 using a MS SQL database. You were also shown with a real web application which was not secure against SQL injection attacks how these attacks can be used by the hacker to delete sensitive information from your website such as database tables. In this part you will learn how to start securing your web applications so they will not be vulnerable to these kinds of exploits. A complete corrected example of the insecure web application will be provided at the end of this tutorial.... ALM Software Solution ? Try it live! Requirements Management, Project Planning, Implementation Tracking & QA Testing.

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• Does it makes sense to backup the whole partition as opposed to their files?

  - by maaartinus

  I know that on Windows it's quite futile to try to backup the "C:" partition file-wise and that's why a full partition backup is needed. Is it OK to backup a the root Linux partition file-wise? Are there any downsides? Clarification Here, I don't care about advantages of partial backups. I'm going to do additional separate backups of /home, etc. What I'm interested in here is the comparison of backup of all files from / vs. backup of the whole partition as device What are the advantages of something like dd if=/dev/sda1 ...?

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• how to give meaningful id to the things in database

  - by gcc

  There are a lot of manuals. I am trying to create an database to hold information of these documents. But, there is a small problem. How can I give meaningful id to the manuals? Are there any standard or logic behind the giving meaningful id to the documents? If there is no standard, can you tell me how I should do that? example: table : manual id | manual name EDIT: Not Meaningful ID 1 or M1 or foo 2 C2 bar 3 P123 name ... ... ... (i) (ii) (iii) (i) Not meaningful for me because if some item deleted, there can be gap. ex 1 33 100. (ii) random character can be confusing when one try to give a name to new manual (iii) Why giving name is not preferred is because finding a name to the manual as ID is hard after 500 manuals. Meaningful : New ID * Can be easily produced even if after 1000 manuals * Should not be so complicated

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