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• Windows shuts down unexpectedly when waking up from sleep

  - by Kush

  I've been facing this issue since yesterday, whenever I put the computer into sleep mode and when I wake up, it takes me to boot menu with choices; start Windows normally, safe mode, etc. in short, it shuts down unexpectedly while waking up. I have my laptop dual booted with up-to-date Windows 7 SP1 (32-bit) and Ubuntu 10.10. This problem is not happening with Ubuntu. I googled the issue and went through this, this and this page. But, none of the threads were helpful to solve it. I've found that there's something to do with device drivers. What can be done to resolve the issue? Can SFC utility solve it if it is due to corrupt system files?

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• Using NPS to restrict access to WLAN

  - by eric.s

  We currently have one WLAN that only domain users can connect to. We will be adding a guest WLAN and would like all non-domain machines to use this, even if a user has a domain account. We have set up NPS and can log in against it, but we can not restrict the connection option to be a domain computer AND a domain account. As a network policy it states that it moves along through each policy until it finds one that it accepts or runs out. For connection request policies Domain Computers is not an option. This is where I thought I may be able to stop it. Has anyone been able to successfully restrict this without manually adding MACs to the WLAN Controller?

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• Ubuntu not shutting down ( going to black screen ) 12.04

  - by Orrin Fox

  I am currently using a USB persistent install of ubuntu. its a simple 4GB drive with a 2.8GB partition ( casper-rw storage partition ). I setup an administrator account and set it to login automatically. I also removed ubiquity to simply use this as a go anywhere install. Heres my issue. Im logged in as my account, and I click the top right gear and select "shut down". Text pops up showing its quitting processes.. etc. and then goes to the plymouth animation. But... The screen goes black, and then it goes to the login screen. Now when im at the login screen i go into terminal ( alt+F2 ) and dont you know, im logged in as Ubuntu. so then I try the following: ubuntu@ubuntu:~$ sudo shutdown now It goes to the plymouth screen again as if its shutting down, AND the screen goes black once again but the computer has not turned off, as in the usb is still flashing the light, the fans are still on, the only thing off is the screen. Is this a bug? If not maybe i did something wrong? Perhaps its that I made an account but... if there is a work around for this please let me know. Thanks again, Fox

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• How to Track Duplicate Downloads

  - by user1089173

  I have a product and we are running a campaign for it to allow users to download a trial version. My questions is there any way to detect multiple downloads from the same computer but behind a proxy. For example if a person uses a proxy server, changes his/her ip and downloads our trial version multiple times from different Ip's, is there a way to detect that it is the same person who's downloading the s/w. We use only Name and Email addresses to be entered before downloading our s/w and that can easily be created. We cannot add any other fields to the form (like phoneno.)

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• Introducing Programming To a Mathematician

  - by ell

  I currently am a programmer, I'm almost 16 years of age and have pretty much narrowed my careers down to something involving a Computer Science degree or Electrical Engineering degree (I know they are quite different but this question is about my friend) but my friend isn't so sure. He is very interested in maths and is very good at it and I think he would enjoy programming but he isn't willing to try it (edit he is willing to try but has never done before). Can anyone give me an suggestions for a language or tool that he could dabble in programming (at a reasonably basic level I assume) to solve maths problems or involve some kind of maths. As I say he enjoys maths a lot but I think he would enjoy programming, the problem is I don't want him to be put off by the stuff that isn't relevant at introductory levels such as memory allocation et al. I know that is very important but the point is that I want him to learn a bit of programming with maths then hopefully if he is interested enough he can start learning programming as programming. Thanks in advance, ell. Edit: Its not that he's completely uninterested - more that he hasn't actively explored the area before, maybe because he isn't informed about it. I wouldn't want to force him to do something he doesn't want to, I see this as more of a little push so that he can learn about programming. If he doesn't like it - fair enough, I can't control that and don't want to but if he turns out to enjoy it - this push will have been the right thing.

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• Nvidia Ion HDMI output problems with Acer Revo

  - by Techfeeler

  I bought an Acer Revo. First I connected it to my Sony TV via HDMI output. For a few days it worked very well. Then one day when switching on the computer, it boots and the TV screen turns black and the TV displays the error message "no input signal". I connected the Revo to a Samsung LED TV, and it did the same. What do you guys think the problem is? How do I tackle this issue? Any help is deeply appreciated.

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• upgrade from windows server 2008 r2 std to enterprise

  - by Ravi

  We recently had to upgrade our servers from Win 2008 R2 Standard to Enterprise. The upgrade method was DISM. After the upgrade, a lot of weird things started to happen. Though Windows says it's been properly activated, we lost 1) RDP settings (disappeared from the Remote Setting tab of Properties of My Computer) 2) The option to join a domain is grayed out 3) The server had to 2 physical processors 12 cores each. Now, task manager or windows sees only 1 processor (or only 12 cores) 4) the amount of physical ram on this sever is 32 GB (Windows reports only 4 GB are usable) Has anyone encountered this before ? Thanks Ravi

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• Recovering a word file (Select the encoding that makes your document readable)

  - by HOY

  My girlfriend requested me to recover a word file which is her 2 months of work :(, and this is her thesis for graduation. It shows the "Select the encoding that makes your document readable" screen when I tried to open it, I tried 2 recovery tools but didn't work. File can be downloaded from the below link. http://s3.dosya.tc/server3/bmu4bi/glava.doc.html I kindly request your help. *The history of the issue*** she said she was copy pasting from other files while creating this file(she copy pasted from a pdf too). 2 days ago she opened the file in company pc and worked on it. Wrote 2 pages and saved. Next morning she could not open it. it is possible that an error occured when saving. the computer she worked freezes sometimes , when she was working there was a file in usb she plug out and in it and continue to work. then saved.

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• Internet connection slower than network connection speed

  - by Mike Pateras

  I've got a computer connected to a wireless router on a different floor. When I look at the network connection, I'm told the signal strength is low, and that I've got a connection of about 26mbps (often higher). However, my internet connection on that machine is very slow. Speedtests show it at about 1-2mbps, and it really shows when loading pages and video. I have fiber optic internet access, and the machine that's connected to the router/modem via cable gets the 20mbps on speed tests, and is extremely fast in every day use. My question is, is the advertised 26mbps+ connection speed perhaps inaccurate, and that my wireless bandwidth is the likely bottleneck here? Or is the signal strength what's key here? And what might I do about this? Power cycling the router helped a bit, a speed test went as high as 6mbps after doing that.

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• best way to compute vertex normals from a Triangle's list

  - by nkint

  hi i'm a complete newbie in computergraphics so sorry if it's a stupid answer. i'm trying to make a simple 3d engine from scratch, more for educational purpose than for real use. i have a Surface object with inside a Triangle's list. For now i compute normals inside Triangle class, in this way: triangle.computeFaceNormals() { Vec3D u = v1.sub(v3) Vec3D v = v1.sub(v2) Vec3D normal = Vec3D.cross(u,v) normal.normalized() this.n1 = this.n2 = this.n3 = normal } and when building surface: t = new Triangle(v1,v2,v3).computeFaceNormals() surface.addTriangle(t) and i think this is the best way to do that.. isn't it? now.. what about for vertex normals? i've found this simple algorithm: flipcode vertex normal but.. hei this algorithm has.. exponential complexity? (if my memory doesn't fail my computer science background..) (bytheway.. it has 3 nested loops.. i don't think it's the best way to do it..) any suggestion?

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• Mac Disk-Utility input/output error

  - by Michelle

  a couple of other people have posted about this but my specific problem has not been addressed. For months I have been backing up DVDs and home movies with no problem then all of a sudden I get an "input/output" error. Yes I have cleaned the disks. Actually I have tried 8 different ones - they are not all bad so its obviously my computer. I have done a scan and cleaned up the HD a bit just in case but nothing is helping. I don't want to download other programs since this one works but seems to be having a problem. Any ideas?

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• HTTP downloads slow - FTP of same file very fast - Windows 2003

  - by Paul Hinett

  I am having some issues with download speeds on my site via http, i am averaging around 70kbps downloading a file that is around 70mb. But if i connect to my server via FTP and download the same file on the same computer / connection i am averaging about 300+kbps. I know my server has alot of connections at any one time, probably around 400 connections. My server has a 1gbps connection to the internet so there is plenty of bandwidth available, as proven with the FTP. I have no throttling of any kind enabled in IIS. If interested there is a test file here you can download to check the speed: http://filesd.house-mixes.com/test.zip I am based in the UK and the server is in Washington, USA if that makes any difference. Paul

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• Why is my keyboard acting like the Ctrl key is pressed when I hit an F key?

  - by Dan Tao

  So, I'm gradually getting the hang of the Kinesis Advantage Pro keyboard that my wife bought me for Christmas. I love it so far. But something very strange happened today. (Note: I actually have no idea if this problem has anything to do with the Kinesis keyboard per se. All I know is that I never encountered this problem until after replacing my old keyboard with the Kinesis.) It seems that if I press an F key (e.g., F2), the computer starts acting like I'm holding down the Ctrl key. For example if I click on a link in my web browser, it now opens in a new tab. Or if I hit A all the text in the document I'm editing gets selected. This behavior persists until I manually hit the Ctrl key again. Has anyone seen anything like this before? What could cause such behavior?

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• 10 Tech Products Ahead of Their Time [Video]

  - by Jason Fitzpatrick

  Sometimes a product just can’t help but be too far ahead of it’s time to be adopted. Check out these 10 products that had their moment of glory a moment (or a decade) too soon. At Mashable they’ve gathered up 10 products that hit the market too soon for people to really appreciate them. Among them, as seen in the video above, a super simple internet-focused computer. At the time it hit the market people simply didn’t get the value of having a cheap, easy to use internet terminal. It probably didn’t help much that the 1990s internet didn’t have the plethora of powerful and useful web-based applications we have now. None the less we now have tons of lightweight and “underpowered” devices focused on the internet experience (like netbooks, iPads, smart phones, chromebooks, and more). Hit up the link below to see the 9 other gems from their collection of products ahead of their times. 10 Tech Products Ahead of Their Time [Mashable] How to Make and Install an Electric Outlet in a Cabinet or DeskHow To Recover After Your Email Password Is CompromisedHow to Clean Your Filthy Keyboard in the Dishwasher (Without Ruining it)

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• Online Backup strategy for family individuals

  - by marlon brando

  The majority of my family, including myself, uses Dropbox and Syncplicity free accounts for our syncing needs. However our backup strategy is pretty non-existent, we all have access (via webDav) to our qnap nas located at home, however we copy files accross when we can remember to do so, terrible I know. Is there tools like CrashPlan or Spideroak that allows each the accomodation of each family members syncing and back-up needs under one main account? I'm not sure how this would work, as each family member would need a seperate sub-account or would I manage each computer's syncing and backup lists from a single account? Any thoughts?

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• Introducing Elke Phelps, Guest Author

  - by Steven Chan (Oracle Development)

  I'm very pleased to welcome Elke Phelps as a new contributor to this blog.  Elke needs little introduction to most long-time readers, as she's been a pillar of the E-Business Suite sysadmin community for years.  What's special about this announcement is that Elke is joining this blog's panel of guest authors as a member of my Product Management team in the Oracle E-Business Suite Applications Technology Group.  I am thrilled to have her as part of my team and look forward to her contributions to this blog. Here's a short bio: Elke is a Product Manager in the Oracle E-Business Suite Applications Technology Group.  She joined Oracle in 2011 after having been an Oracle customer and Oracle Technologist (Oracle Database Administrator, Oracle Applications DBA, Technical Architect and Technical Manager of an Oracle Applications DBA Team) since 1993. Elke is the lead author of the Oracle Applications DBA Field Guide (Apress 2006) and Oracle R12 Applications DBA Field Guide (Coqui Tech and Press 2010).  Elke is also the founder of the Oracle Applications User Group (OAUG) E-Business Suite Applications Technology Special Interest Group (SIG) and served as President of the SIG from February 2005 - August 2011.  Elke has been a speaker at Oracle OpenWorld and Collaborate since 2004.  Prior to joining Oracle, Elke was designated an Oracle ACE (2007) and Oracle ACE Director (2009).   Elke has a Computer Science Degree and a Masters of Business Administration from the University of Oklahoma.  In her spare time, Elke enjoys traveling especially to Europe, Puerto Rico and the amazing US National Parks.  Elke also enjoys hiking, antiquing, gardening and cooking. 

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• Firefox 11 sync with Android device

  - by gisek

  I've just installed Firefox 11. I'd like to sync it with the one on my Android device. I tried to follow the instructions they provided and tried to pair device. I entered the code from Android to desktop. This made my phone show a window showing 'Waiting for device' and a progress bar running all over again. Than I tried to use 'I'm not near my computer' option on Android. I am asked for email, password and a recovery key. So I googled a little and found an instruction. I go to Options/Sync. But there are only 2 options: Set Up Firefox Sync Pair a device So how can I get this recovery key?

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• Is there a Linux-compatible R/C simulator that works with real radios?

  - by Norman Ramsey

  My Dad flies radio-controlled (R/C) aircraft. He used to run a simulator called "RealFlight" which allowed him to connect his actual radio to his computer and fly simulated craft. He learned enough to fly actual planes, but he wants to move up from "trainer" aircraft to higher-performance craft. After some crashes, he'd like to go back to the simulator for a while. The catch: he's given up Windows and is now running Ubuntu. Question: is there an R/C flight simulator that Runs on Ubuntu? Allows you to connect your radio and use it to control the simulator, preferably through a USB port?

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• Understanding Asterisk Server features

  - by Arham Ali Qureshi

  I need to ask few question about Asterisk 1) Does ACL mean by Access Control list here ?If yes than how could i use it? >ip show user 6001 * Name : 6001 Secret : <Set> MD5Secret : <Not set> Context : DLPN_Admin Language : AMA flags : Unknown Transfer mode: open MaxCallBR : 384 kbps CallingPres : Presentation Allowed, Not Screened Call limit : 2147483647 Callgroup : 1 Pickupgroup : 1 Callerid : "test" <6001> ACL : No Sess-Timers : Accept Sess-Refresh : uas Sess-Expires : 1800 secs Sess-Min-SE : 90 secs RTP Engine : asterisk Codec Order : (ulaw:20,gsm:20) Auto-Framing: No 2) What is mean by "Require Call Token" in Asterisk Digium GIU on Create new User Panel 3) Is There any command from where i can get users VOICE MAIL password ? 4) What AMI or CLI command set call recording on or off for user ? and if i want that file to be stored on client computer not on server memory what could i do ?

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• How do I encrypt but share a number of folders?

  - by d3vid

  I want to achieve the following functionality. Is it possible? Boot up computer (possibly via WakeOnLan or WakeOnPlan). Either be automatically logged in, or log in via login screen, or log in remotely. I change this behavior occasionally, so full disk encryption wouldn't work for me because it requires a password on bootup (which would it would prevent the remote bootup options, and the automatic login option). I am only interested in encrypting data, not the entire harddrive. Once logged in either: a launcher/tray icon is available to launch encryption app (preferred) run encryption app from the dash Prompted to unlock encrypted folder(s) individually. Unlocked folders are available to: me, apps I am running (e.g. editors, SpiderOak) Ideally, folders that I share with bindfs can be locked/unlocked by other users too. A key point is that once I have unlocked an encrypted folder, I don't want to have to think about it again. I currently achieve this via TrueCrypt (except for the last part). Unfortunately TrueCrypt isn't well integrated with Ubuntu (licensing issues prevent Debian from including it in their repo, the interface isn't quite integrated with Unity, setting it as a startup app doesn't quite work, sharing encrypted folders isn't really part of its design). Is there an alternative to TrueCrypt that is better integrated with the Ubuntu GUI and would suit this workflow?

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• How can I disable the automatic switch to "library" mode in Windows 7's Media Player 12?

  - by matthews

  Whenever I plug any USB device into my computer while running Windows Media Player 12 in Windows 7, it will automatically swtich the player from the Now Playing mode to Library mode. This is intended to faciliate syncing between Media Player and MP3 players, but it happens for any USB device. I'd like this to not happen since it's infuriating to see this take place while I'm watching something on a separate screen in Media Player just from plugging in a USB key. This has nothing to do with Windows autorun, and nothing to do with versions of Windows pre-7. And no, switching to some other video player is not an option; I've tried them all, none are as good as stock Media Player in 7.

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• Universal Windows XP With Ghost and Sysprep

  - by RobertPitt

  Hey I have an idea but im not sure whether it is possible and looking for advice on how to accomplish this. If i was to try and deploy Windows XP Sysprepped image from a Lenovo Thinkcentre 6073-CTO and tried to drop it onto a Dell Optiplex for instance I would get a BSOD due to the hardware change. What im looking to do is create a few images like so: Windows XP x86 SP3 (Sysprepped) Windows XP x64 SP3 (Sysprepped) ... So that we can use throughout the organization without having to create individual images per computer type. Is there anyway's to accomplish this such as some modification of files pre-ghost, removal a certain drivers pre-sysprep Any advice is appreciated.

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• Restoring the exact state of a linux install to a different laptop with different sized drives and other hardware

  - by user259774

  I have an IBM running a Manjaro install that has already been used and settled into, with packages installed, browser profiles, etc, etc. The drive is 60gb, and it has a swap partition and an ext4 root partition. I need to move this profile to a Toshiba computer with a 320gb drive. How should I go about this? My inclination would be to shut down the toshiba, boot a live linux system, dd the whole 60gb drive to a file, boot the toshiba to a live system, then dd the file to its 320gb drive. Would this work? I know that it wouldn't with windows, but I believe this is an artificially imposed limitation from Microsoft. Is this correct, or is Linux similarly limited? If not, how could I go about this? Would clonezilla work, or would the hardware disparities prevent it from working?

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• Change power button to 'Ask' in Xubuntu 13.10

  - by Gully.Moy

  I have recently installed Xubuntu 13.10 on my Vaio vpcea making me a Linux beginner. The problem is that laptop's power button is right on the edge of the bezel making it far too easy to press accidentally, in my opinion a design fault by Sony. At present, when I press the power button it shuts down strait away and as you can imagine, when I'm accidentally pressing it all the time it gets very annoying! So I planned to change it to ask what I would like to do when I press it or at least ask if I'm sure. So I went through the xfce GUI options "Settings Manager" - "Power Manager" to the field "When power button is pressed", but it was already set to "Ask". So I did some digging and found a thread telling me to navigate to /etc/xdg/xfce4/xfconf/xfce-perchannel-xml/xfce4-power-manager.xml where it said to find power-button-action and check that value="3". It already did. So I looked some more and found this thread which focuses on acpi scripts. I tried solution 1 & 2 using sudoedit to change the files accordingly (I have made executable bash shell scripts already so I think I followed them correctly), but still no difference. I also found this thread which instructed me to edit /etc/systemd/logind.conf so that HandlePowerKey=ignore. Still no luck. I even tried my own approach to completely disable /etc/acpi/powerbtn.sh by renaming it powerbtn.sh.bak hoping for at least no response from the power button... and I have done many reboots in between... but still it shuts down! I have also read that some people have the file /etc/acpi/events/power_button, but I do not. So does anyone have any other ideas? What else could be executing the shutdown sequence Is there something I'm missing? I haven't undone any of these actions so every one of the above files is currently edited on my computer, with the exception that "Solution 2" automatically undone "Solution 1" above. Thanks guys.

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• What are the risks of installing a "bad quality" package?

  - by ændrük

  When I try to install sonic-visualiser_1.9cc-1_amd64.deb via the Software Center the following warning message is displayed: The package is of bad quality The installation of a package which violates the quality standards isn't allowed. This could cause serious problems on your computer. Please contact the person or organisation who provided this package file and include the details beneath. Lintian check results for /home/ak/Downloads/sonic-visualiser_1.9cc-1_amd64.deb: Use of uninitialized value $ENV{"HOME"} in concatenation (.) or string at /usr/bin/lintian line 108. E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/bin/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/bin/sonic-visualiser 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/applications/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/applications/sonic-visualiser.desktop 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/doc/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/doc/sonic-visualiser/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/doc/sonic-visualiser/CHANGELOG 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/doc/sonic-visualiser/COPYING 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/doc/sonic-visualiser/README 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/mimelnk/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/mimelnk/application/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/mimelnk/application/x-sonicvisualiser-layer.desktop 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/mimelnk/application/x-sonicvisualiser.desktop 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/pixmaps/ 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/pixmaps/sv-icon-light.svg 1000/1000 E: sonic-visualiser: wrong-file-owner-uid-or-gid usr/share/pixmaps/sv-icon.svg 1000/1000 I understand that this means the package doesn't meet Debian policy and I know how to override the warning and install the package anyway. What are the risks of doing so?

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