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• How do I program a hardware button on my laptop?

  - by daniel11

  So I have a set of touch screen buttons on the top of my laptop's keyboard, (one turns on power save mode, one disables/enables the mouse touch pad, one toggles the wifi adapter, and two turns the volume up/down). However there's another one that opened a file backup utility that came with my laptop. Since I bought my laptop, I've uninstalled that utility, rendering this button useless. Would it be possible to reprogram that button to open another file or program on my computer? And if so, what are the requirements and how would I go about doing it? Thanks in advance!

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• Random generation of interesting puzzle levels?

  - by monsterfarm

  I'm making a Sokoban-like game i.e. there's a grid that has some crates on it you can push and you have to get the crates on crosses to win the level (although I'm going to add some extra elements to it). Are there any general algorithms or reading material I can look at for how I could go about generating interesting (as in, not trivial to solve) levels for this style of game? I'm aware that random level generators exist for Sokoban but I'm having trouble finding the algorithm descriptions. I'm interested in making a game where the machine can generate lots of levels for me, sorted by difficulty. I'm even willing to constrain the rules of the game to make the level generation easier (e.g. I'll probably limit the grid size to about 7x7). I suspect there are some general ways to do level generation here as I've seen e.g. Traffic Jam-like games (where you have to move blocks around the free some block) with 1000s of levels where each one has a unique solution. One idea I had was to generate a random map in its final state (i.e. where all crates are on top of their crosses) and then the computer would pull (instead of push) these crates around to create a level. The nice property here is that we know the level is solvable. However, I'd need some heuristics to ensure the level was interesting.

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• How does one dismantle the ThinkPad Mini Dock Series 3 (model 4337)?

  - by Whaa

  I have a ThinkPad Mini Dock Series 3 with a spring that is too stiff, causing problems with the connectivity when a computer is docked. I tried to open it so that I can soften the spring, but hit a brick wall. I removed all the screws I could find at the the bottom and the back panel of the docking station, but the bottom part of the plastic case would still not part from the top of the plastic case. I even looked under some of the various stickers for more screws, but found nothing. Can anyone please help with pointers on dismantling this docking station?

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• MVC 4 Authentication

  - by Aligned

  First: After searching for awhile to figure out what’s new/different with MVC 4 and forms authentication, this is the best article I've found on the subject: http://weblogs.asp.net/jgalloway/archive/2012/08/29/simplemembership-membership-providers-universal-providers-and-the-new-asp-net-4-5-web-forms-and-asp-net-mvc-4-templates.aspx Some quotes from the article: “The ASP.NET Web Pages team designed SimpleMembership to (wait for it) simplify the task of dealing with membership” "WSAT is built to work with ASP.NET Membership, and is not compatible with Simple Membership. There are two main options there: Use the WebSecurity and OAuthWebSecurity API to manage the users and roles Create a web admin using the above APIs Since SimpleMembership runs on top of your database, you can update your users as you would any other data - via EF or even in direct database edits (in development, of course)" “If you want to use an existing ASP.NET Membership Provider in ASP.NET MVC 4, you can't use the new AccountController. You can do a few things:” “Universal Providers do not work with Simple Membership.” ~ this post (look for Bob.at.SBS’s answer) says Universal Providers is not needed for MVC 4 to work in Azure)   I've been trying to figure out the Forms Authentication in MVC4. It's different than the past approach (aspnet_regsql). If you do file new project -> MVC 4 -> internet application, you get a really nice template with the controller and model setup for you. However, the tables are different than using aspnet_regsql and the ASP.Net Configuration tool (WSAT) wasn’t connecting to the data I had (it was creating an App_Data/aspnet.mdf file, which I didn’t see right away). Points of Note The database tables are created in the SimpleMembershipInitializer class, when you first run your app using Entity Framework 5 migration functionality. The tables created are webpages_Membership, webpages_OAuthMembership, webpages_Roles, webpages_UsersInRoles, UserProfile. Web.config settings don’t seem to be needed.   Scott Hanselman on Universal Providers was also useful if not somewhat out dated. Universal Providers and SimpleMembership are not compatible. http://www.asp.net/web-pages/tutorials/security/16-adding-security-and-membership – walk-through

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• Ubuntu Volume overriding settings set in Alsamixer

  - by Hayek

  Problem: How do I "lock in" the volume I set through alsamixer? I'm running Ubuntu 9.10. I adjusted the bass/treble columns in alsamixer but changing the system volume resets them all back to 100% I did save the settings by running alsactl store but everything is reset once I touch Ubuntu's volume icon in the top menu bar. This is rather painful because the computer is hooked up to a 650watt system with a massive subwoofer. As much as I enjoy my music, there's no need to have the walls vibrate :) What can I do to prevent Ubuntu from overriding the settings?

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• Tomcat directly serve static (css, js) files shared by multiple applications

  - by Josvic Zammit

  I'm using the ExtJS framework which has a bulk of js and css files that are used for all apps. I intend to share these between a number of web applications (different war files). For this reason I would like to serve ExtJS js and css directly from the web server, in my case Tomcat6, which can be used to serve static files, as in this helpful link. Therefore I put my files under /var/lib/tomcat6/webapps/ROOT/extjs/. The static files that are directly under that directory are served correctly, e.g. /extjs/ext.js correctly serves the file at /var/lib/tomcat6/webapps/ROOT/extjs/ext.js. However files in lower-level directories, for example /extjs/welcome/css/welcome.css, which should serve the file at /var/lib/tomcat6/webapps/ROOT/extjs/welcome/css/welcome.css, return a 404. TL/DR Tomcat serves static files only at top-level directory. A 404 is returned for files deeper in the hierarchy. Config file contents: server.xml application's web.xml

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• Apache routing vhosts to /var/www

  - by FHannes

  One user at my site has reported that he reaches the content at /var/www when browsing to any of the vhosts at my server. As far as I’m aware, my Apache server does not contain a document root that references this folder. On top of that, this user seems to be the only one experiencing the issue. According to his ISP, the issue isn’t caused by them, yet, on his mobile connection, he can access the site. When browsing to my server’s IP, he also receives the correct content from the default vhost. What could be the possible causes of this issue and how can I get it to stop? I’ve explored pretty much every option I could think of.

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• How do you assign resources and keep begin, end and duration of a task intact?

  - by Random

  I have problems with assigning more than one resource to a group of tasks. The idea is simple, my tasks are in one group and are manually scheduled to particular begin and end dates. I want to assign more than one resource to keep task duration and dates (fixed duration) and increase work. For top level tasks it works fine but as long tasks are grouped, the duration of each is extended to reach group end date and work remains. For the problematic tasks, the Gantt chart looks like this: One resource attached (good) ( Task 1.1 ) ( Task 1.2 ) (Task 1.3) More than one resource attached (wrong) ( Task 1.1 )....................... ( Task 1.2 ).......... (Task 1.3) So for tasks like that, I want to have a fixed schedule and just increase work by adding resources that work in the same time, but sometimes MS Project does leveling to do resources work sequentialy.

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• Ubuntu installer shows three small screens

  - by Sylan

  I'm trying to install Ubuntu (or Kubuntu, which I tried first) 13.04 on a new laptop. I need the install in UEFI mode in order to properly dual boot with Windows 8. I've managed to overcome most of the UEFI issues up to the installer, which appeared as a black screen until I used nomodeset. Now the installer will appear, however it does fit my screen size. Instead, it appears as three small identical screens across the top of the monitor. I thought the problem could be solved by changing the display resolution in GRUB via changing the vga number, but this simply expanded the width of the three screens. While I could install it at this point, the identical screens are too small for me to be able to read the installer. As well, the "Try Ubuntu" option simply gets stuck at a black screen. I'm afraid these problems may persist through the installation if I attempted to continue. Additional information: The laptop is a Lenovo Ideapad Y580 with an i7 3630qm processor, and a GeForce GTX 660m graphics card which works alongside an Intel HD 4000 integrated card via Optimus.

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• Best way to generate pieces in match-3 games, and then tracking them?

  - by JonLim

  I've been working on a match-3 style game in Actionscript using Flixel, and so far, I've been able to build the core mechanics of the game, including board generation, piece generation, piece swapping and movement, and checking algorithms. However, I am now running into issues with clearing out pieces and letting the above pieces fall down and generating new pieces. The reason I'm running into these issues is that when all of the pieces are generated, the pertinent values (position, sprite ID, and sprite object) are pushed into an array that helps me track everything, all the time. When pieces are moved, I swap the values of the corresponding arrays and life goes on. And that array is the core of my problem: if a row in the middle of the board clears out, ideally, all of the pieces above the cleared pieces should fall down to take their place and new pieces are generated at the top and also fall into place. Except if I try to do that now, all the pieces can fall down, but then I'd have to bump all of their values into the right arrays (oh god my head) and then generate new pieces and fit THOSE into the correct place in the array. Am I overthinking this? Or is there a far better way to track these pieces? Thanks guys!

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• Is there anyway that I can set the 'real' memory usage value while running my java code?

  - by vira

  I'm running a code on a server to generate a 10,000x10,000 matrix and save each value into a table (MySQL). I was informed by the administrator that I can use up to 32g of the physical memory of our server but have no idea how to do it. I googling around and so far only found information about setting the virtual memory using -Xmx. I tried it anyway and using top command I got this: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3981 gv 35 15 32.4g 304m 10m S 1 0.5 9:54.84 java So, it shows that the -Xmx set the VIRT and not the RES value. Is there anyway that I can set the RES value into 32g?

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• Ubuntu 13.04 Sound Problem after following weird commands

  - by user206356

  After launching a few commands : echo autospawn = no >> ~/.config/pulse/client.conf #use ~/.pulse/client.conf on Ubuntu <= 12.10 killall pulseaudio $LANG=C pulseaudio -vvvv --log-time=1 > ~/pulseverbose.log 2>&1 My sound does not work. (just with the speakers, with headphones it works but I can not change the volume) The sound icon on the top right corner does show a speaker with a single non continuous line. I can not change the volume; it is frozen. There can be an extremely low output of the sound (I hear something but I am not sure...) It does not show a single output device that is avalaible, not even the "dummie". I have tried to reset pulseaudio, alsa, remove it, purging it, reinstalling it, without having success. EDIT: I have tried launching pulseaudio via the terminal. It worked :D However, I am very surprised why it does not automatically start at the start of the computer. Any ideas ? Here the console output : W: [pulseaudio] authkey.c: Failed to open cookie file '/home/simonm/.config/pulse/cookie': No such file or directory W: [pulseaudio] authkey.c: Failed to load authorization key '/home/simonm/.config/pulse/cookie': No such file or directory W: [pulseaudio] authkey.c: Failed to open cookie file '/home/simonm/.pulse-cookie': No such file or directory W: [pulseaudio] authkey.c: Failed to load authorization key '/home/simonm/.pulse-cookie': No such file or directory

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• Internal Libraries (Subversion Externals, 'library' branch, or just another folder)

  - by Ntsc

  Currently working on multiple projects that need to share internal libraries. The internal libraries are updated continually. Currently only 1 project needs to be stable but soon we will need to have both projects stable at any given time. What is the best way to SVN internal libraries? Currently we are using the 'just another folder' like so... trunk\project1 trunk\project2 trunk\libs It causes a major headache when a shared library is updated for project1 and project2 is now dead until the parts that use the library are updated. So after doing some research on SVN externals I thought of this... trunk\project1\libs (external to trunk\libs @ some revision) trunk\project2\libs (external to trunk\libs @ different revision) trunk\libs\ I'm a little worried about how externals work with commits and not making library commits so complicated that I am the only one capable of doing it (mostly worried about branches with externals as we use them extensively). On top of that we have multiple programming languages within each project some of which don't support per-project library directories (at least not easily) so we would need to check out on a per project basis instead of checking out the trunk. There is also the 'vendor' style branching of libraries but it has the same problem as above where the library would have to be a sub folder of each project and is maybe a little to complicated for how little projects we have. Any insight would be nice. I've spent quite a bit of time reading the Subversion book and feeling like I'm getting no where.

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• How to connect to VPN using commands in Linux (Fedora 16)

  - by WarFox

  Usually, I use the network connections icon on the top bar to connect to VPN. The connection is configured properly and it connects well. Configuration screen shot is given below. As you can see I have selected the 'Connect automatically' option. But this option doesn't help in connecting to VPN automatically upon login. This is my university VPN and it uses 'Point-to-Point encryption (MPPE)' for authentication I need to connect to the VPN using command line, so that I can write a script and run it at start up, so the connection is automatically established every time I login. This will also help in connecting to VPN when I login from 'init 3' mode. I depend on this VPN connection for my internet access. Please help me with the required commands.

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• What is wrong with this HTML5 <address> element? [closed]

  - by binaryorganic

  <div id="header-container"> <address> <ul> <li>lorem ipsum</li> <li>(xxx) xxx-xxxx</li> </ul> </address> </div> And the CSS looks like this: #header-container address {float: right; margin-top: 25px;} When I load the page, it looks fine in Chrome & IE, but in Firefox it's ignoring the styling completely. When I view source in firefox it looks like above, but in Firebug it looks like this: <div id="header-container"> <address> </address> <ul> <li>lorem ipsum</li> <li>(xxx) xxx-xxxx</li> </ul> </div>

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• What editor/viewer to use to inspect large text based files?

  - by Turismo

  Are there any text editors/viewers (preferably on windows but other platforms are also ok) that can handle files of 500 MB or more? The editors I checked so far (Notepad++, Notepad, Eclipse) all choked on files of that size. Edit: Many thanks for the great suggestions. I tried gvim as it was the top voted and was available on Windows. I opened the file in a reasonable time. After that scrolling and searching was very smooth as long as syntax highlighting was turned off. From the other editors mentioned TextPad and EmEditor both claim to be able to handle large files very well. EmEditor seems to be built exactly for editing large files. I'll probably try both and report back.

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• excel autocomplete combo-box with on-selection event

  - by IttayD

  I have an excel sheet for groceries. One column is the name, another is whether to buy it or not (checkbox) and another is the amount. I'd like to have a widget in the top row so that I start typing an item's name and it shows a list of matching items that I can select from, or if I continue to type and there's only one item, completes its name. When the last item is selected, other widgets show the amount, which I can edit and clicking 'check' will check the item in the list. I know this is kind of very specific, but am hoping someone can at least get me started. Thank you, Ittay

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• How I can make my windows look like mac using any software or utilities?

  - by user33631

  I am currently using Windows classic mode in Win server 2008 r2. Can I get mac like themes in windows. Like When I run Photoshop, SongBird or other apps they have interface quite similar with Mac. Does someone know how it's possible to get a mac like look in windows (compatible to win 7). My simply means that something that make my windows's themes color like mac. Like I can run firefox by using themes but i want now for every apps means the three button on top titlebar and interface.

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• I want to make "stuff" on the web, is a BsC. in Computers necessary/overkill? [on hold]

  - by notypist

  I'm 24 and have a lead role in a major news outlet in my country, with a good pay and public image in the horizon. I hold a job that was previously held by people with 15-20 years of experience and considered one of the top 5 news anchors in my country. My passion though, is computers. The web, to be precise. I was a problogger at a very young age. I hacked my way through CSS and some basic HTML and PHP. But I want to move forward - I want to CREATE not just STRUCTURE things. Giving up the present (and especially the seemingly promising future) in my current industry is hard, my friends raise their eyebrows... I'm considering a BsC. in computer Engineering - but my stats are short of getting into a good university for this discipline. Plus, I'm not the best with math - although I do exceptionally well in statistics and other numbers that are more applicable to real life. I tried learning PHP through online websites, but that just "doesn't cut it" for me. Nope. So what are my options here? if I don't want to build hardware or and deal with overly-complex algorithmic but would like, for example - to build a well functioning iPhone and iPad app, or a SaaS, a startup...do I have to go the BsC. route? I don't see any option to get an "official" education in strictly "web" concepts and languages.. Note: I'm well off financially, so I'm doing this more to be able to create stuff, rather than get a job in a corporations. Although if I land somewhere high, that might be an option. But my main concern is getting the tools.

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• What is Slotted and pure aloha?

  - by caspert

  So I am having a really hard time understanding slotted and pure aloha. I have understood CSMA/CD fairly well, but that is it. I have the book: Computer networking - a top down approach, but I find the explanation very cryptic and hard to understand. Wikipedia did not help me. Does anyone have a brief "aloha for dummies" explanation? or perhaps a video tutorial? I think I need something visual. I don't need to be able to create the protocol, I just need a general understanding of it.

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• Drive still usable if Seatools reports errors?

  - by Rob

  I have a Seagate 3TB Expansion Desktop drive that was part of a Linux RAID 6 array that failed. I eventually did a zero fill both through Seagate DiscWizard and via Linux dd, neither reported errors. When I ran Seatools now, I got: Short DST - Started 5/31/2014 10:04:36 PM Short DST - Pass 5/31/2014 10:05:37 PM Long Generic - Started 5/31/2014 10:15:19 PM Bad LBA: 518242762 Not Repaired (whole bunch of bad LBAs ommited) Bad LBA: 518715255 Not Repaired Long Generic Aborted 6/1/2014 3:12:18 AM i.e. the short test passed, the long test failed. Unfortunately, the drive is out of warranty, so I can't just RMA it. But I hate tossing a drive that can still be used. So, my questions are: If the zero fill succeeded, and the short test passed, can I still use the whole drive? if not, since I'm using LVM on top of RAID, is there a way to tell either of these to just skip the bad area? If not the above, can I just create partitions before and after the part of the drive with the bad LBAs?

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• Display issues on new OpenSUSE install

  - by user1319182

  I installed OpenSUSE 13.1 on my newly built PC, but the display is just horrible : the edges of the screen are missing. For example, I can't see all the top part, I can barely read the date and I see "ctivities" instead of "Activities". However, when I take a screenshot everything seems to be fine (the cursor doesn't appear though) the characters are sometimes too big and sometimes too small the cursor is huge and many other strange things. I took a few pictures I'm using an Intel integrated GPU (HD4400) and made all the possible updates with YaST. Any idea how I can fix this? Thanks

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• How to deploy Windows-8 Enterprise Apps to other users?

  - by TToni

  Windows-8 (Metro) Apps can be installed using "sideloading", bypassing the Windows store in enterprise environments. In principle this is easy: Once you enabled sideloading (which is automatically done when a Win8-machine joins a domain), you can install a signed appx-Package through PowerShell with the "Add-AppxPackage" command. But there is a catch: The App is only installed for the user who executes the command and there is no "-Credentials" parameter! I can probably solve that problem in my specific scenario, where I deploy a self-developed app through TFS build to a virtual machine with a fixed demo user (by using remote powershell in combination with "Add-Job", which does take a credential parameter and because I know the given username and the password). But that is not true in an enterprise environment, where I want to distribute my App to thousands of users. Cracking all their passwords seems a bit over the top, so what would be the "correct" way to do this? I can't find any useful information from Microsoft about this, but maybe one of you already ran into this problem and solved it?

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• How do I audit CD/DVD tray opening events in Windows 7?

  - by MetaHyperBolic

  Since installing Windows 7, the entire office has experienced random CD tray openings, sometimes while we are in the office, sometimes not. On my PC, I have two disc-reading devices, but only the top one ever slides open. I have found nothing in the event logs to that looks appropriate, even going to them right after I saw my own tray slide open all by itself. Although it's not hurting anything (that I can tell), I'd like to know what is going on. To that end, are there any useful ways to audit these events?

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• Distribution upgrade (12.04 -> 14.04 LTS) halted while unpacking/installing packages

  - by Bob Sully

  As the title states...it just stopped unpacking/installing. "Preparing to unpack .../lirc_0.9.0-0ubuntu5_amd64.deb ..." then stopped in its tracks. Everything else is still running. The update manager process is still alive; if I hit ctrl-c, it gives me the warning message about leaving the system in a broken state. Also, if I run top, there is a process called "trusty" which is still running. I have NOT killed either process. lsb_release -a gives: LSB Version: core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch Distributor ID: Ubuntu Description: Ubuntu 14.04.1 LTS Release: 14.04 Codename: trusty I assume that if I try to restart update-manager, I won't be offered the option to upgrade again. Anyone have a way I can get the update-manager/dist-upgrade process to simply finish the upgrade? Thanks!

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