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• How to use uTouch on multitouch-enabled touchpads?

  - by Freddi

  I currently have a Synaptics touchpad with only few classic multitouch features (2 finger scroll, right click). By installing the uTouch testing suite, I saw that it doesn't accept my touchpad as input device. I want to buy a newer notebook and would like to benefit of uTouch features (window management, swipe, pinch, rotate). Does uTouch only work on touchscreens or also on touchpads? What requirements should I take into account when choosing a new notebook?

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• Find out if there is a local user logged in when logging in over ssh

  - by sebastiangeiger

  I need to run some calculations on a machine that I can only access remotely but also serves as a work station. There are many of them and I want to pick a "free" one. Free means in this case that no one is logged in locally. My first try was the who command, but for some reason it only lists "selected" users and I can't really find out how they are selected. Next try: ps aux | cut -d " " -f1 | sort | uniq: better showing a bunch of demons but also the local user that was not displayed by who. My current solution is to go in and do ps aux | grep "gnome-session" which is better but still gives me a lot of junk. Ideally I am looking for something that I can include in my ssh profile that warns me about (active) local users when I log in.

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• Installing ubuntu, asks for user/pass

  - by NickGreen

  Hi there, Im trying to install ubuntu v10.10 64bit on my pc. Unfortunately when I try to boot the installation from my usb-drive the installation begins with asking for a username and password.. I didn't set up a user or a password for that matter, so what username/pass should I fill in. I already tried to submit the form blank and with root / root but without success.. Somebody knows what the right combination is or explain if I'm a complete idiot for not understanding what to do.. Thank you alL!

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• Programatically loading user controls

  - by PhilSando

  Today's little problem is that I am trying to load user controls from my codebehind like so: Dim myControl As UserControl = Page.LoadControl("~\Modules\Content.ascx")              Controls.Add(myControl)  On running the page myControl is no where to be seen. I wonder why that is? Well after a bit of thought the following come to mind... Am I using the correct code to insert the usercontrol? Is there an alternative available? Does the fact that the usercontrol has a page_load method make a difference? Does the fact that the usercontrol is being called from the page_init method make a difference? Do I need to register the control in my aspx page at design time? I'll be looking to answer these questions as the day goes on!

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• Ubuntu 12.04 LTS Desktop 64 bit user permissions or apache2 rewrite problem

  - by mtm

  have installed 12.04 Desktop 64 bit, manually installed LAMP, phpmyadmin, php5-dev,PEAR, PECL, apc, ssh, created user to own /var/www/ and transferred 3 sites to /www/. sites are in subfolders, sites - available all configured, and enabled. One site is pure html, two athers - php. Enabled curl, but phpmyadmin started at first, also php sites, than stopped working /show blank pages/ sites said Clean urls cannot be enabled. Html site still working. Where is the problem, and why the php sites stop working? In all apache .conf files Allow Override is set to ALL. php sites have .htaccess files. And this configuration worked with Ubuntu 10.04.

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• '/'var/www/' vs '/home/$USER/public_html'

  - by OrganizedFellow

  I recently started using Ubuntu as a LAMP server. I've come across plenty of tutorials that say to place the files at '/var/www/' and I've also seen others that put them in '/home/$USER/public_html/'. During my testing and figuring stuff out, I was successfully able to view a test site URL from each location. Is one better than the other? I thought that maybe it was just preference. But the more I think about it, the more I want to keep all my work in my Home folder.

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• Why does OS X automatically logout my user?

  - by MBA_fv

  I have a new MacBook Air set up with filevault. In the Security preference pane I have "Require password 1 hour after sleep or screen saver begins" enabled, but the "Logout after 60 minutes of inactivity" is disabled. When I leave the computer on overnight I manually lock the screen (from the Keychain status menu bar, which I enabled via the Keychain Access preferences). Alas, in the morning I find that instead of a locked screen I see the login window, after my user was logged out with all applications terminated... (e.g. Firefox thinks it previously crashed when I launch it). This type of behavior only started after I enabled Filevault. Why is this happening? How do I prevent such auto-logout?

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• New user to Linux Mint and Alinux

  - by Richard

  which is better for a new Linux user, Linux Mint or Alinux i had trouble getting Alinux to run after install Mint ran fine. We are also with the Tucson Refugee ministry and we have computers given to us all the time then we reload the OS clean it up then we give them to the refugee families. We need something that will run on older computers with 256 or 512m of ram, and i do not want to use Micro Soft Please help. PS is there any other Linux OS you would recommend?????? Thanks Richard Smith [email protected]

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• How will the launcher/button work on a touch panel?

  - by burli

  I'm not sure if Unity has a design problem. If the Launcher is hidden you can bring it to front by moving the mouse over the home button or hit the Super Key. So far, so good. But what is on Tablet Devices with touch panel? Intuitively I would "click" in the corner to show the launcher, but a click will open the Dash. How should that work on a touch device? Do I have to "drag" my finger into the corner? Will touch devices have a "menu button"? Will there be a gesture to show the launcher?

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• To identify the classes for uml diagrams?

  - by user106535

  I want to implement a software engineering project based on "crime management system". The main modules are: visitors, users, administrator. The main events that are taking place are: registration, report complaint, report crime, report most wanted, view status of reported crime. So could you please help me to identify the classes that are to be used in this project and help me to draw the class diagram?

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• Checking whether the user input is a str in Python [migrated]

  - by Sahil Babbar

  I checked various questions on Stack Overflow but one thing every logic lacks. Let me demonstrate using Python: while True: user_input = raw_input() if type(user_input) == str: print 'ERROR' else: print 'BINGO' Also, we cannot use input() in place of raw_input() as it gives the error:Traceback (most recent call last): File ".\test.py", line 3, in <module> user_input = int(input()) File "<string>", line 1, in <module> NameError: name 'asdf' is not defined The problem here is that raw_input converts the user input into string so it always prints 'ERROR' and if I change the second line to user_input = int(raw_input) then, it gives an error: Traceback (most recent call last): File ".\test.py", line 3, in <module> user_input = int(raw_input()) ValueError: invalid literal for int() with base 10: 'asdf' I tried this with try and except but it shall work fine to check integer but not a string. I feel that this question may be marked as a duplicate but I think that this query is important, if logically taken.

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• What algorithms would suit image colour summarization? [on hold]

  - by codecowboy

  I would like to analyse a set of hundreds of thousands of product images (clothing, electronic goods etc) and retrieve the dominant colours in each. I'm only interested in the top 3 or 4 colours. The aim is to achieve a degree of certainty that x image is mostly red or image y is mostly orange and blue. The images are likely to be colour jpegs of reasonable quality and approximately 100kb in size. I would like to use C# and the solution should run on a Linux server, preferably using open source libraries. What image processing algorithms or techniques might help me achieve this?

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• Change user name

  - by Giorgio

  Recently i've added new accounts in my PC, and for one of those need to change name: I've try to change it by "graphical procedure" from "account manager menu" but change only the name in LogIn screen and near the clock. If I open a Terminal the name remain the old one. I need to have this situation from Old name: franco@PC-Casa:~$ ----- I want obtain New name: francesco@PC-Casa:~$ o How i can do this without create a new one user and transfer all data? Can you explain me step by step the procedure?

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• Joomla: Prevent certain user from visiting a certain page

  - by user6657

  I have an internal section in my Joomla only for "Registered" users. There they can edit preferences. Multiple users can access the same preferences (different stakeholders). Now I have "smithcorp" and "smithcorp_guest". They should both be able to view the same things, but "smithcorp_guest" shouldn't be able to edit the preferences. Is there a way to forbid "smithcorp_guest" access to this page? I have only seen access regulation via the user level, i.e. unregistered, registered, admin. Thanks, MrB

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• ubuntu 11.10 on MacBookPro 7,1 can only see one cpu

  - by gozzilli

  On a MacBookPro 7,1 running ubuntu 11.10, System monitor only sees 1 core (instead of 2). cat /proc/cpuinfo | grep 'cpu cores' also gives: cpu cores : 1 I followed this guide and added acpi_apic_instance=2 to the line with GRUB_CMDLINE_LINUX_DEFAULT, but that doesn't seem to change the situation. What can I do? I'm using rEFIt, installed under MacOS, and running in dual boot with MacOS. After the rEFIT menu, I'm still presented with the GRUB menu (I'm assuming that's normal). I saw similar posts on this matter, but could not fix my problem with what they suggested. Any help appreciated. Thanks!

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• Can I have a computer with 2 physical HDs, & Dual boot option, one for Windows & one for Ubuntu

  - by Frank

  When my HD failed in my old computer with a dual core, I immediately went out and bought a new 6 core PC because I needed it for business and had to have an immediate solution. The old computer was otherwise a good computer. I don't want to spend a $100+ for a new operating system for the old computer because the Windows 7 Professional opperating system for the new computer will only allow one install. So, I decided to look and see if there were any free operating systems and found Ubuntu. I downloaded it and burned a live CD and would like to try it on the old computer. I found a 200 GB HD I can buy for $30 and the seller will format it any way I want. There are also other HDs available at a similar price. What I was thinking I would like to do is buy 2 HDs. Then I can have one formatted for Ubuntu 12.04 and install Windows XP Pro SP1 on the other HD for which I have the original installation CD. Then I would like to have a dual boot option so that when I power up the computer, I can choose whether to use Windows XP or Ubuntu. Is this possible? If so, how would I do it, that is, arrange it so a dual boot option presents itself on power up.

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• I seem to be missing a few important concepts with PhoneGap

  - by garethdn

  I'm planning on developing an app on multiple platforms and I'm thinking that PhoneGap might be perfect for me. I had been reading that it's one codebase for all platforms but looking at the PhoneGap guide it seems there are separate instructions for each platform. So if i want to develop for iOS, Android, BB and WP7 I need to write 4 different sets of code? I'm sure i'm missing something fundamental here. Aside from that, how do people usually approach a PhoneGap build? You obviously / probably want the finished app to look like a native app - is it more common than not to use jQuery Mobile together with PhoneGap? Is there a preferred IDE? I see, in the guide, for iOS they seem to suggest Xcode. I'm fine using Xcode but it seems a bit overkill for HTML & CSS. Do I need to develop in Xcode and if not how do i approach it? Use a different IDE / Text Editor and then copy paste into Xcode for building and testing? I know this question is long-winded and fundamental but it something which i don't think is properly addressed in the guides. Thanks.

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• Simple Hierarchical Clustering Implementations for C#?

  - by Joshua Smith

  I need a C# library that can do hierarchical single/complete link clustering. It's for a BSc final year project and I can't find any free implementations. I'd be happy to port a small(ish) Java project to C#, but most of the Java implementations are contained within huge libraries that have 30+ algorithms. The problem with large libraries is that one has to port 50% of the entire library due to dependency fanout. I'd be extremely grateful if anyone knows of any free single/complete link clustering implementations for C# or a small Java implementation of either! By the way, as I am a student, it may be possible to ask for an academic/research license from commercial companies.

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• booth multiplication algorithm

  - by grassPro

  Is booth algorithm for multiplication only for multiplying 2 negative numbers (-3 * -4) or one positive and one negative number (-3 * 4) ? Whenever i multiply 2 positive numbers using booth algorithm i get a wrong result. example : 5 * 4 A = 101 000 0 // binary of 5 is 101 S = 011 000 0 // 2's complement of 5 is 011 P = 000 100 0 // binary of 4 is 100 x = 3 y = 3 m = 5 -m = 2's complement of m r = 4 After right shift of P by 1 bit 0 000 100 After right shift of P by 1 bit 0 000 010 P+S = 011 001 0 After right shift by 1 bit 0 011 001 Discarding the LSB 001100 But that comes out to be the binary of 12 . It should have been 20(010100)

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• Where to after a year of java? [closed]

  - by avatarX

  I've just finished a my first year of programming Java at varsity and I have a three month break. In terms of my development would it be better to: Cover Java in more depth to acquire a more intermediate level of ability Learn a new programming language (if so which) to a similar level as my current Java ability Spend timing learning introductory discrete maths, algorithms and data structures I'm also open to any other possibilities that would be beneficial but that could be covered in about 3 months.

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• Restoring two finger middle click again

  - by Thomas A.

  it used to be that tapping two fingers on the touchpad send a middle mouse click. Now it does a right click and three fingers now are the middle click. I really can't understand the change and think it is a bug or badly copied from Apple or something. The reasoning escapes me totally. I use middle click to open links in a new tab in the browser all day and I rarely use right click (and I have a right mouse button below the touchpad, doh) Tapping three fingers on my tiny EeePC touchpad is next to impossible so I want the old behavior. I found: synclient TapButtons2=2 synclient TapButtons3=3 but that did not work on 10.10 Does anyone know how to restore sane behavior?

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• Clone User Profile with Encrypted Home Folder

  - by doublerainbow64

  I'd like to clone my user profile on my local machine. I'd like to do so, just to keep all the preferences and not to have to redefine all of them manually. I've tried this, but when I login, it will just return to KDM login screen. BTW I'm using Kubuntu 14.04. What might be interesting: I have encrypted my home folder. Does this make any difference? I've also tried to copy the contents of .kde folder into /etc/skel, but this had no effect. Thank you very much in advance, doublerainbow64

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• January Winnipeg .NET User Group Event

  - by D'Arcy Lussier

  We’ve had some problems with the Winnipeg .NET UG website, but things are getting sorted out and the site should be back up very shortly. In the meantime, here’s info on our January event and how to register. This is also a Microsoft sponsored event, so we’ll have some great swag to give away. As always, pizza will be provided! When: Wednesday, January 26th Where: 17th Floor Conference Room, Richardson Building Session: Taking your Windows Phone Apps to the Next Level with Tombstoning Speaker: Tyler Doerksen, Imaginet Unlike previous versions of Windows Mobile, Windows Phone 7 does not allow 3rd party applications to run in the background. Because of this your application needs to react to various life cycle events to provide the user with a seamless experience. Luckily Silverlight isolated storage has your back. In this session learn about the app life cycle and what storage patterns you can use to keep your users happy. To register for this event, please visit our registration page here.

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• URL parameter names being changed by user agents

  - by Mike Deck

  In reviewing one of our site's web logs I'm seeing instances where we are returning a 404 to requests because we're expecting an id parameter to be sent, but instead we're seeing a di parameter. The resource in question is an image but which image file actually gets served is dependent on the id parameter. The expected url is something like http://images.mysite.com/photo.gif?id=123&width=200&height=300 What I'm seeing in the logs is requests for http://images.mysite.com/photo.gif?di=123&width=200&height=300 The only case where we are seeing this on the id parameter. It seems unlikely that this is due to a server side or JavaScript bug since it seems to be only effecting a small percentage of our traffic. We are seeing this across a wide variety of user agents (both mobile and desktop) and IPs. Has anyone else seen this? Is there a browser plugin or other software you're aware of that could be causing this, and if so is there a good way to work around the issue?

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• Default groups for user in Ubuntu 12.10?

  - by Sukminder

  Installed HP Linux Imaging and Printing by using install script and something crashed. Now I'm only member of my own group and lp. Which are the default groups for users in Ubuntu 12.10? Same as this? And, out of curiosity, is there some place where this information is logged? As i.e. some log file showing which groups my user was on previous boot? And/or is this information ,(which groups are default), documented somewhere? OK Found answer. Adding when I'm able (haven't got enough points and have to wait hours to answer myself).

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