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• 12.04: Having problem with REISUB

  - by Jerry-bliss

  Often my ubuntu freezes up altogether(only able to move my cursor). So i try to reboot using the keys "ALT+PrntScrn+REISUB", but this is what happens Once i finish hitting the keys RE, my screen goes BLACK and it shows up a few lines of commands (or whatever) which I dont understand. I have no other choice other than manually force shut down (by pressing power button for 3-4 seconds) Here is a screenshot of what my black screen displays as soon as I hit R,E What do these lines mean? Is there anyway I can safely restart my PC? (Since i was unable to use printscreen, i had to manually take a snap of my monitor using my camera. I had taken 3 pictures of the same screen, because I could not capture the entire text displayed on my screen in a single click)

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• rich snippets ignored by google [closed]

  - by Thoir Fáidh

  Possible Duplicate: Why would Google Rich Snippets work for one site author but not another? I'm facing one problem here. I made rich snippets - microdata for the website but google ignores all of them. Here is how it looks like in testing tool . It doesn't detect any errors. I've read that google ignores the microdata in hidden fields. Unfortunately this is partially the case since I use jquery to interact with the contect, but nevertheless it is not hidden everywhere and I believe that google should recognize at least the microdata visible to the user permanently. Am I missing something here? It is now about 3 weeks since I updated website with rich snippets.

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• How Circuit Boards Are Manufactured and Tested [Video]

  - by Jason Fitzpatrick

  Circuit boards are in nearly everything: computers, cars, toys, phones, even greeting cards. Check out this tour of Printed Circuit Board (PCB) factory to see how they’re made. In the above video the owners of Base2 Electronics are watching a PCB testing machine at the factory where they purchase their boards for resale. The machine is first scanning the board to identify it in the board database and then the arms start flying as it tests individual circuits on the board. If you’re interested seeing all the steps of the manufacturing process, hit up the link below for a photo and video tour of the facility. Base2 Electronics Tour of Advanced Circuits [via Hack A Day] How To Encrypt Your Cloud-Based Drive with BoxcryptorHTG Explains: Photography with Film-Based CamerasHow to Clean Your Dirty Smartphone (Without Breaking Something)

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• US Summer Heat Wave Visualized

  - by Jason Fitzpatrick

  While it seems like every summer people complain about the heat, this summer there’s a basis to their grievance. In the past month there have been 4,230 daily high-temperature records set across the continental United States. Over at NPR they’ve rounded up some environmental data that paints a picture of the US as a scorching hot place to be right now. The above map shows the number of locations reporting a recording setting temperature in the month of June; many of those places are on track to appear on the July map (available in the full NPR post). For more interesting stats about this year’s heatwave–like the fact that record temperature reports are up 71% from last year–hit up the link below. How Hot Is It? All You Need To See Are These Two Maps [NPR] How to Use an Xbox 360 Controller On Your Windows PC Download the Official How-To Geek Trivia App for Windows 8 How to Banish Duplicate Photos with VisiPic

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• DeskLights Turns Desk Surface Into Giant Multi-Purpose Notifier

  - by Jason Fitzpatrick

  We’ve seen desks with LEDs under frosted glass before, but this is the first desk we’ve seen where the LEDs serve as a sophisticated notification system. Check out the video above to see desk, designed by Michael LaGrasta, in action. The secret sauce is an array of LED modules, linked to an Arduino board, which is in turn running a tiny web server. Hit up the link below for the full build guide. DeskLights 2.0 [via IKEAHackers] Hack Your Kindle for Easy Font Customization HTG Explains: What Is RSS and How Can I Benefit From Using It? HTG Explains: Why You Only Have to Wipe a Disk Once to Erase It

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• A problem with Bash script

  - by c.sokun

  I want to write a simple script to detect a file created by Windows virus, usually it create an .exe file with the same name as the directory it drop. Here is the script it only work if the path name doesn't contain \n. Can someone help me fix this script please! #!/bin/bash if [ $# == 0 ]; then echo "" echo "==== Give me a directory to begin with! ====" echo "" exit fi for f in `find $1 -name '*.exe'` | do filename=`basename "$f" .exe` dir_name=`dirname "$f"` current_dir_name=`basename "$dir_name"` if [ $filename == $current_dir_name ]; then rm -f "$f" # It can't remove file where path contain space or \n ??!! fi done

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• text is not appearing at cursor in bash, can I reset it somehow?

  - by jcollum

  This happens sometimes if the VM bumps up against upper limits of memory and has to hit swap heavily for extended periods (a few minutes or more). When this happens and I type asdf at the prompt it looks like: $ No command 'asdf' found, did you mean: Command 'asdfg' from package 'aoeui' (universe) Command 'sadf' from package 'sysstat' (main) Command 'sdf' from package 'sdf' (universe) asdf: command not found $ Note that asdf isn't showing up after $. The obvious answer is to just kill the tab and start a new one. Still, I have to wonder if there's a way to reset a bash terminal that is misbehaving like this. I tried bash and it didn't make any difference.

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• The sharp decline Statistics of website

  - by Erfan Safarpoor

  My website has had 10 months ago, the statistics are very high. Very high ... But after 10 days of server failure, Marm was 20 times less. I got lost for a long time without making a mistake, do ... I am the source of links that they've hired a writer to pen the final results are seen. But a strange thing: Approximately every two months and was hit again 20 more times and then low again after 10 days! my website url : www.sooran.com (food.sooran.com)

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• Nicest way to map rgb colors from html to led

  - by back_ache

  I have attached an rgb led to a color picker on a webpage and have hit the obvious problem that though the led is 8-bit like html the color rendition is very different so with the more subtle shades the led values for the color are wildly different to the html values. The brute-force method would be for me to have a lookup-table on the webserver to map the two sets of values but would ideally like to do it more elegantly Before I start listing all my 101 ideas for doing this I wondered if anyone else had come across the issue, the end-game would be to be able to abstract the color-rendition of different leds and make it available as a webservice (html value and device id in, led value out)

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• How to make a ball fall faster on a ramp? Unity3D/C#

  - by Timothy Williams

  So, I'm making a ball game. Where you pick up the ball, drop it on a ramp, and it flies off in to blocks. The only problem right now is it falls at a normal speed, then lightly falls off, not nearly fast enough to get over the wall and hit the blocks. Is there any way to make the ball go faster down the ramp? Maybe even make it go faster depending on what height you dropped it from (e.g. if you hold it way above the ramp, and drop it, it will drop faster than if you dropped it right above the ramp.) Thanks.

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• PyGame QIX clone, filling areas

  - by astropanic

  I'm playing around with PyGame. Now I'm trying to implement a QIX clone. I have my game loop, and I can move the player (cursor) on the screen. In QIX, the movment of the player leaves a trace (tail) on the screen, creating a polyline. If the polyline with the screen boundaries creates a polygon, the area is filled. How I can accomplish this behaviour ? How store the tail in memory ? How to detect when it build a closed shape that should be filled ? I don't need an exact working solution, some pointers, algo names would be cool.

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• Strategies to Defeat Memory Editors for Cheating - Desktop Games

  - by ashes999

  I'm assuming we're talking about desktop games -- something the player downloads and runs on their local computer. Many are the memory editors that allow you to detect and freeze values, like your player's health. How do you prevent cheating via memory-modifiation? What strategies are effective to combat this kind of cheating? For reference, I know that players can: - Search for something by value or range - Search for something that changed value - Set memory values - Freeze memory values I'm looking for some good ones. Two I use that are mediocre are: Displaying values as a percentage instead of the number (eg. 46/50 = 92% health) A low-level class that holds values in an array and moves them with each change. (For example, instead of an int, I have a class that's an array of ints, and whenever the value changes, I use a different, randomly-chosen array item to hold the value)

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• Low graphics mode on Ubuntu 12.04 with Intel Graphics

  - by NightShadeQueen

  When I boot, my computer just tells me it can't detect graphic card (or something else) settings and it has to use the low graphics mode. Then it gives me four choices, but doesn't let me choose any of them. I can get my computer to boot by going to some sort of terminal mode and then typing sudo gdm. The other graphics manager I have is lightdm. I originally had the nVidia propriety driver, and I've tried bumblebee. Mobile Intel Graphics Media Accelerator 4500M is my graphics card. Is there any way to fix this so I can use lightdm again?

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• Craft a Drinkable Density Column

  - by Jason Fitzpatrick

  Earlier this month we shared a clever 9-layer density column demonstration you’d most certainly not want to drink. This smaller demonstration, however, is a delicious column of fruit flavors. The secret sauce? In the previous experiment we shared the secret was using fluids with naturally varying densities (such as lamp oil and vegetable oil); in this experiment you’ll be relying on varying amounts of sugar in each layer to change the density of the water and keep them separate (and edible). You’ll need some Skittles, a few drinking glasses, water, and for best effect, a tall and narrow glass or graduated cylinder. Hit up the link below for the full details on the experiment and tips on how to carefully layer the liquids. Make a Drinkable Rainbow in a Glass [i09] Can Dust Actually Damage My Computer? What To Do If You Get a Virus on Your Computer Why Enabling “Do Not Track” Doesn’t Stop You From Being Tracked

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• How to Use a PS3 Controller as a Joystick for Your Windows PC

  - by Zainul Franciscus

  Do you find it hard to steer your mouse and hit the right keyboard key to play PC games? If you happen to have PS3 controllers, why not use them as Joysticks to play games? Image by AlphaCoders Before we begin, head over to MotionInJoy website to install the required drivers for Windows. The installer comes for both x86 (32-bit operating system) and x64 (64-bit operating system), so make sure you download the right installer for your system. If you are in doubt, just go to Start -> Control Panel –> System, to verify your system settings. HTG Explains: What Are Character Encodings and How Do They Differ?How To Make Disposable Sleeves for Your In-Ear MonitorsMacs Don’t Make You Creative! So Why Do Artists Really Love Apple?

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• Root and Install ADB on Your Kindle Fire with SuperOneClick

  - by Jason Fitzpatrick

  The Kindle Fire, fresh into the hands of consumers across the country, has already been rooted and accessed with ADB. Right now the hack is awesome but of limited utility–it highlights how easily the Kindle Fire can be rooted and prepared for a custom ROM but for the moment you’ll find there aren’t many custom ROMs floating around. Still, we’re excited by the news and looking forward to where, beyond the stock configuration, people take the Kindle Fire. Hit up the link below for the discussion thread on AndroidForums outlining how to root your Kindle Fire. How-To Get ADB Running AND Root with SuperOneClick [AndroidForum via PhanDroid] HTG Explains: How Hackers Take Over Web Sites with SQL Injection / DDoS Use Your Android Phone to Comparison Shop: 4 Scanner Apps Reviewed How to Run Android Apps on Your Desktop the Easy Way

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• Mouse and Keyboard Freeze

  - by kev

  I installed Ubuntu 10.10 today and have had mouse problem since. Symptoms: At some arbitrary point in time (frequency: 2-3 times per hour), the mouse and keyboard stops working for ever(may be). I start System monitor, I found out network was shutdown just before mouse freeze. Some time my keyboard keep typing one key. For example:77777777777777777777777777777777777777777777777777777.....(it keep typing for 20 sec) I found out a script just solve the freeze problem:(I hit Powerbutton) -----------------/etc/acpi/powerbtn.sh------------------------ event=button[ /]power action=/usr/sbin/fix_mouse.sh -----------------/usr/sbin/fix_mouse.sh------------------------ rmmod psmouse modprobe psmouse Yesterday I install Ubuntu 10.04 FAILED also have mouse problem. When I switch back to Windows XP. The network card is down. It kept connecting and disconnecting 1 time per sec. CPU: i5 Motherboard: ASUS P7P55D OS: Windows XP + Ubuntu 10.10 Video Card: ATI 5770 Mouse,Keyboard: PS/2

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• Electrified Light Saber Helps You Slay Bugs Like a Jedi [Video]

  - by Jason Fitzpatrick

  This fun little DIY project combines a toy light saber with the guts of an electrified fly-swatter to yield a bug slaying sword perfect for your epic battles against the Empire’s tiniest soldiers. Courtesy of Caleb over at Hack A Day, the build is surprisingly simple and quick to put together (if you’re handy with a screw driver and soldering iron). Check out the video above to see the build and the results or hit up the link below to read more about it. Building a Bug Zapping Light Saber [Hack A Day] How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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• grub2 loopback booting ubuntu server iso

  - by Thermionix

  I've got usb-keys setup to multi-boot different linux images using grub2 loopback. The standard ubuntu release isos boot fine, however when attempting to use the server iso it will fail to install saying 'unable to detect cd-media for installation'. the grub.cfg entry; menuentry "ubuntu-12.04-server-amd64" { set isofile="/boot/ubuntu-12.04-server-amd64.iso" loopback loop $isofile linux (loop)/install/vmlinuz file=$isofile/preseed/ubuntu-server.seed ro noprompt noeject -- initrd (loop)/install/initrd.gz } I've attempted to add the following parameters as the fromiso works for debian images on the key iso-scan/filename=/boot/ubuntu-12.04-server-amd64.iso iso-scan/filename=/dev/disk/by-uuid/2859-44B7/boot/ubuntu-12.04-server-amd64.iso fromiso=/dev/disk/by-uuid/2859-44B7/boot/ubuntu-12.04-server-amd64.iso

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• Running 32-bit Firefox with sun-jre in 64-bit Ubuntu

  - by rojanu

  I am trying to run juniper networks connect program to vpn into work and it only works on 32bit sun jre. All the things I have found with google failed so far. I can't use any scripts, like madscientists, as part of the authentication I need to provide some random characters from a grid. So to isolate this 32bit app install to a corner, I downloaded firefox and jre and unpack them to /opt. I run firefox with sudo as Juniper asks for root password. Here is Firefox plugins folder /ot/firefox32/plugins# ls -la total 8 drwxr-xr-x 2 root root 4096 Mar 11 00:57 . drwxr-xr-x 11 root root 4096 Mar 10 23:48 .. lrwxrwxrwx 1 root root 49 Mar 11 00:57 libnpjp2.so -> /opt/java/32/jdk1.6.0_31/jre/lib/i386/libnpjp2.so Firefox lists sun jre but when check it with "http://java.com/en/download/installed.jsp" it either can't detect java or Firefox freezes Any Ideas? Thanks

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• Where can I change the webpage showed by apache?

  - by Blankman

  I have ubuntu 10.10 installed, and when I hit my IP I see: It works! This is the default web page for this server. The web server software is running but no content has been added, yet. Where should I look to see where this is being served from? The strange thing is, I just installed nginx and setup a static page that is served on port 80 also (should be conflicting with the default apache that is serving the 'it works page'), when I restart nginx I don't get bind error sayign port 80 is already taken. I dont' use apache, and don't want it but the default install seems to have it. I ahve no idea where it is, I don't see it in /opt or etc/apache . thanks!

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• If Expression True in Immediate Window But Code In if Block Never Runs

  - by Julian

  I set a break point in my code in MonoDevelop to break whenever I click on a surface. I then enter the immediate window and test to see if the the if statement will return true in comparing two Vector3's. It does return true. However, when I step over, the code is never run as though the statement evaluated false. Does anyone know how this could be possible? I've attached a screenshot. Here is the picture of my debug window and immediate window. You can see where the immediate window evaluates to true. The second breakpoint is not hit. Here are the details of the two Vector3's I am comparing. Does anyone know why I am experiencing this? It really seems like an anomaly to me :/ Does it have something to do with threading?

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• Builder Pattern: When to fail?

  - by skiwi

  When implementing the Builder Pattern, I often find myself confused with when to let building fail and I even manage to take different stands on the matter every few days. First some explanation: With failing early I mean that building an object should fail as soon as an invalid parameter is passed in. So inside the SomeObjectBuilder. With failing late I mean that building an object only can fail on the build() call that implicitely calls a constructor of the object to be built. Then some arguments: In favor of failing late: A builder class should be no more than a class that simply holds values. Moreover, it leads to less code duplication. In favor of failing early: A general approach in software programming is that you want to detect issues as early as possible and therefore the most logical place to check would be in the builder class' constructor, 'setters' and ultimately in the build method. What is the general concensus about this?

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• LEGO Ornaments Bring Geeky DIY Charm to Your Holiday Decorating

  - by Jason Fitzpatrick

  Why settle for just a Death Star ornament when you can have a Death Star ornament you built yourself from LEGO? These DIY ornaments are a perfect geeky touch for your tree or gift for a LEGO loving friend. Courtesy of Chris McVeigh, we find nine DIY ornament guides that range from traditional (like teardrop ornaments and bulbs) to geeky (like Death Stars and Millennium Falcons). Hit up the link below to check out all the files and order the brick collections right through LEGO’s Pick a Brick service. LEGO Ornaments [via Geeks Are Sexy] HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7 HTG Explains: Why It’s Good That Your Computer’s RAM Is Full

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• How do I improve my code reading skills

  - by Andrew

  Well the question is in the title - how do I improve my code reading skills. The software/hardware environment I currently do development in is quite slow with respect to compilation times and time it takes the whole system to test. The system is quite old/complex and thus splitting it into a several smaller, more manageable sub-projects is not feasible in a neare future. I have realized is what really hinders the development progress is my code reading skills. How do I improve my code reading skills, so I can spot most of the errors and issues in the code even before I hit the "do compile" key, even before I start the debugger?

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