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• USB mass storage couldn't get mounted

  - by revo

  It's my android phone SD card which was indicated damaged by android yesterday night, out of the blue! I put it directly to a USB port with a USB SD card holder case, so in that way I can recover it with TestDisk, which I had experienced before on a similar situation. I also noticed that there is a change in file system and capacity: File System : RAW Capacity : 0 (unknown capacity) Also TestDisk doesn't show it on its partitions list. A 2 GB SD card is not that important in price but I've a lot of files and medias which I need them. Used a mini card reader, TestDisk displayed it on its list but a quick search and or a deep search doesn't have any results No partition found or selected for recovery and then I should quit the program. Your help is appreciated. Update #2 lsusb output: Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 002: ID 04f3:0234 Elan Microelectronics Corp. Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 002: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

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• Find meeting point of 2 objects in 2D, knowing (constant) speed and slope

  - by Axonn

  I have a gun which fires a projectile which has to hit an enemy. The problem is that the gun has to be automatic, i.e. - choose the angle in which it has to shoot so that the projectile hits the enemy dead in the center. It's been a looooong time since school, and my physics skills are a bit rusty, but they're there. I've been thinking to somehow apply the v = d/t formula to find the time needed for the projectile or enemy to reach a certain point. But the problem is that I can't find the common point for both the projectile and enemy. Yes, I can find a certain point for the projectile, and another for the enemy, but I would need lots of tries to find where the point coincides, which is stupid. There has to be a way to link them together but I can't figure it out. I prepared some drawings and samples: A simple version of my Flash game, dumbed down to the basics, just some shapes: http://axonnsd.org/W/P001/MathSandBox.swf - click the mouse anywhere to fire a projectile. Or, here is an image which describes my problem: So... who has any ideas about how to find x3/y3 - thus leading me to find the angle in which the weapon has to tilt in order to fire a projectile to meet the enemy? EDIT I think it would be clearer if I also mention that I know: the speed of both Enemy and Projectile and the Enemy travels on a straight vertical line.

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• Why are my videos playing speeded up with no audio, but work fine if I log in as a guest?

  - by Martins Kruze

  Since the start of this week I have been experiencing a glitch in the multimedia on my Samsung R518 laptop. I have 2 problems: Videos in every player are speeded up around 2 or 4 times (including youtube.com (both HTML5 and flash variants), any other video on the web and videos on my laptop played by Totem Media Player), exception is VLC player, but 2nd problem does concern even that. There is no sound - simple as that (with or without headphones plugged in). These all problems are now, and has not seen before, I upgraded to Ubuntu 10.10 after it was possible, and from start I didn't have anything from this - it just started in this week. I haven't even putted new software in. I have more or less solved the question (kind of) - I just logged in as a guest - and it all works, but when I make a new user - it does not. Please help me. Some stats below: sudo lshw -c sound *-multimedia description: Audio device product: RV710/730 vendor: ATI Technologies Inc physical id: 0.1 bus info: pci@0000:01:00.1 version: 00 width: 32 bits clock: 33MHz capabilities: pm pciexpress msi bus_master cap_list configuration: driver=HDA Intel latency=0 resources: irq:48 memory:cfeec000-cfeeffff *-multimedia description: Audio device product: 82801I (ICH9 Family) HD Audio Controller vendor: Intel Corporation physical id: 1b bus info: pci@0000:00:1b.0 version: 03 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: driver=HDA Intel latency=0 resources: irq:47 memory:fc200000-fc203fff sudo lshw -c video *-display description: VGA compatible controller product: M92 LP [Mobility Radeon HD 4300 Series] vendor: ATI Technologies Inc physical id: 0 bus info: pci@0000:01:00.0 version: 00 width: 32 bits clock: 33MHz capabilities: pm pciexpress msi vga_controller bus_master cap_list rom configuration: driver=radeon latency=0 resources: irq:46 memory:d0000000-dfffffff ioport:2000(size=256) memory:cfef0000-cfefffff memory:cfe00000-cfe1ffff

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• Resolution stuck in 640x480 in grub, 11.04 and 12.04

  - by user89797

  I have three operating systems on my machine, Windows 7x64, Ubuntu 11.10 and 12.04 both x64 as well. All three were running at full resolution for my monitor, as well as in the Grub 1.99 boot screen. After booting into Windows, I rebooted my machine and found my Grub resolution was suddenly 640x480. Booting into both versions of Ubuntu, I find myself stuck at that resolution as well. I made no driver changes recently, and hadn't even booted into the 11.10 build in a month or more. I've gone through both proprietary Nvidia driver options for my card (GeForce 9800GT) as well as the open source drivers in 12.04 to no avail. I can't figure out what could have caused this change in both versions of Ubuntu and Grub simultaneously. Windows 7 is unaffected so I think that safely rules out hardware failure. EDIT Ok, so I couldn't boot an graphical live disks, I tried ubuntu 12.04 i386 and x64 as well as 12.10 beta x64 and all of them would flash the initial logo, go to a blank screen with a flashing cursor in the upper left and then my display would die. I managed to boot 12.04 server and get into recovery. I reinstalled grub and went into recovery mode for my 12.04 build. If I boot in safe graphics mode I can get 1280x768, but as soon as I reboot it's broken again. I've tried reinstalling the nvidia drivers and that leaves me with a system stuck at max 640x480. None of these changes have had any impact on the 11.10 build, which is still stuck at 640x480 Given that I can push a somewhat higher resolution in 12.04, and full resolution in windows 7 I'm pretty convinced it's not an issue of my monitor failing. It must be something to do with the graphics drivers. I can't figure out what could be the issue though. I'm especially perplexed that I can't boot any live images

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• How to view/mount other partitions on your hard drive

  - by Preston Zacharias

  Recently I have installed Ubuntu 12.04 Beta 2 on a USB flash drive and decided to install it on an old external HDD which I have taken out of the casing and succesfully mounted in my desktop computer. There is no other operating system besides the newly install Ubuntu. However, there is about 500gb of data on the drive. This is why i used a partitioning software on my windows 7 netbook to partition the hard drive to set aside 1tb for files, 350gb of space for linux and the remaining 650gb for Vista which i plan on installing soon. But this is where the problem sets in...when installing Ubuntu it does not recognize that the drive is partitioned at all, it's just one big open block of space...so I used the installers built in partitioning feature to set aside 300gb for main Ubuntu install and 50gb for swap space. I set both of these partitions to be created at the "end" so that it wouldn't delete or write over my data. And this is where i am really lost; when booting into Ubuntu i am able to use it perfectly fine, got on internet, etc...but i have NO CLUE as to how i can view files that were previously on the drive (all of my data that i had prior to install). How can I mount/be able to view the other partition so that i can have access to my data? Thank you ahead of time! I REALLY appreciate any help or advice! ~Preston

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• No boot or grub file after using ls command

  - by Poke Moke

  I had xubuntu installed, i believe version 12.04 and then tried to dual boot with backbox. It worked from the flash drive but upon installing it onto the hard drive, I could no longer boot backbox. I decided I would just clear my OS and put just backbox on the hard drive and only have a single boot. To do this, I erased my boot file completely which led to my current position. I am put into the grub rescue prompt. I can't do a system restore, I can't boot with anything I might try including puppy linux and a boot rescue, and I've looked up the commands and I've tried to fix this. I can do ls, I find the correct hd but then I'm stuck as I don't have a boot or grub folder. The command is typed as: ls (hd1,msdos1)/ and listed is ./ ../ lost+found/ etc/ media/ bin/ dev/ home/ lib/ mnt/ opt/ proc/ root/ run/ sbin/ selinux/ srv/ sys/ tmp/ usr/ var/ initrd.img vmlinuz cdrom/ apfolder initrd.img.old vmlinuz.old (not sure if it's initrd or init rd.img. as it wraps around the screen there.) I've seen commands regarding boot or grub if they are seen but as listed, they aren't there. Any ideas?

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• GPG Invalid Signature

  - by user46421

  I am having problems with the following (in an attempt to remove hyperlinks, I have removed one of the "/" from the addresses): W: GPG error: http://archive.ubuntu.com oneiric Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <[email protected]> W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures were invalid: BADSIG B725097B3ACC3965 Launchpad lffl W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures were invalid: BADSIG 4874D3686E80C6B7 Launchpad PPA for Banshee Team W: GPG error: http://archive.getdeb.net jaunty-getdeb Release: The following signatures were invalid: BADSIG A8A515F046D7E7CF GetDeb Archive Automatic Signing Key <[email protected]> W: GPG error: http://badgerports.org lucid Release: The following signatures were invalid: BADSIG C90F9CB90E1FAD0C Jo Shields <[email protected]> W: GPG error: http://ppa.launchpad.net oneiric Release: The following signatures were invalid: BADSIG 976B5901365C5CA1 Launchpad PPA for transmissionbt W: Failed to fetch http://ppa.launchpad.net/dlecan/openjdk/ubuntu/dists/oneiric/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/dlecan/openjdk/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/sevenmachines/flash/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/sun-java-community-team/sun-java6/ubuntu/dists/oneiric/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/sun-java-community-team/sun-java6/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found I have tried the following solutions which were in a closed case titled "The following signatures were invalid": First of all try sudo apt-get clean sudo apt-get update && sudo apt-get upgrade Some ISPs cache the packages and errors like these are reported then. If the above commands don't work, try sudo apt-get update -o Acquire::http::No-Cache=True and again sudo apt-get update && sudo apt-get upgrade If it still doesn't work, sudo apt-get update -o Acquire::BrokenProxy=true sudo apt-get update && sudo apt-get upgrade

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• Compiling GCC or Clang for thumb drive on OSX

  - by user105524

  I have a mac book that I don't have admin rights to which I would like to be able to use either GCC or clang. Since I lack admin right I can't install binutils or a compiler to /usr directory. My plan is to install both of these (using an old macbook that I do have admin rights for) to a flash drive and then run the compiler off of there. How would one go building gcc or clang so that it could run just off of a thumb drive? I've tried both but haven't had any success. I've tried doing it defining as many of the directories as possible through configure, but haven't been able to successfully build. My current configure script for gcc-4.8.1 is (where USB20D is the thumb drive): ../gcc-4.8.1/configure --prefix=/Volumes/USB20FD/usr \ --with-local-prefix=/Volumes/USB20FD/usr/local \ --with-native-system-header-dir=/Volumes/USB20FD/usr/include \ --with-as=/Volumes/USB20FD/usr/bin/as \ --enable-languages=c,c++,fortran\ --with-ld=/Volumes/USB20FD/usr/bin/ld \ --with-build-time-tools=/Volumes/USB20FD/usr/bin \ AR=/Volumes/USB20FD/usr/bin/ar \ AS=/Volumes/USB20FD/usr/bin/as \ RANLIB=/Volumes/USB20FD/usr/bin/ranlib \ LD=/Volumes/USB20FD/usr/bin/ld \ NM=/Volumes/USB20FD/usr/bin/nm \ LIPO=/Volumes/USB20FD/usr/bin/lipo \ AR_FOR_TARGET=/Volumes/USB20FD/usr/bin/ar \ AS_FOR_TARGET=/Volumes/USB20FD/usr/bin/as \ RANLIB_FOR_TARGET=/Volumes/USB20FD/usr/bin/ranlib \ LD_FOR_TARGET=/Volumes/USB20FD/usr/bin/ld \ NM_FOR_TARGET=/Volumes/USB20FD/usr/bin/nm \ LIPO_FOR_TARGET=/Volumes/USB20FD/usr/bin/lipo CFLAGS=" -nodefaultlibs -nostdlib -B/Volumes/USB20FD/bin -isystem/Volumes/USB20FD/usr/include -static-libgcc -v -L/Volumes/USB20FD/usr/lib " \ LDFLAGS=" -Z -lc -nodefaultlibs -nostdlib -L/Volumes/USB20FD/usr/lib -lgcc -syslibroot /Volumes/USB20FD/usr/lib/crt1.10.6.o " Any obvious ideas of which of these options need to be turned on to install the appropriate files on the thumb drive during installation? What other magic occurs during xcode installation which isn't occurring here? Thanks for any suggestions

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• Pitching My Software-Should I Get a Patent? [closed]

  - by Mike

  This Thursday I will be filming for a Canadian TV Show where I will be pitching my software to 5 Canadian Millionaires to invest in. The software is ridiculously basic but it is for sports teams, specifically football and basketball teams. (The show won't air till September) I made this in Adobe Flash using Actionscript. I have been selling the software to sports teams in the USA mostly including University Teams for $20. I have only sold 32 copies ($640), but I don't advertise, I just write articles on the subject. Now my question is this: I have no patent on this software since I have been doing this casually. Is it a bad idea to go onto this TV show and ask them for money for a software patent? Or should I be asking money for marketing/other things? Note: I also have no idea how much I should ask for. I know absolutely nothing about software patents but if it matters no other software exists that does this exact thing (however it could be easily duplicated).

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• hdmi audio works only with aplay -D alsa test wavs; open source radeon drivers; kernel 3.5 vgaswitcheroo

  - by user108754

  I've trolled the internets to make hdmi work on my system Ubuntu 12.04 software center kernel 3.5 uname: Linux ubuntu 3.5.0-18-generic #29~precise1-Ubuntu SMP...x86_64 x86_64 x86_64 GNU/Linux open source radeon drivers vgaswitcheroo (hybrid intel/radeon gpu): I boot with intel, not radeon, running. (and recall that with kernel 3.5, vgaswitcheroo now gives info on a third item, "DIS-Audio"; it indicates pwr on my system) ( /etc/rc.local: chown user:user /sys/kernel/debug/ # change "username" with your user name echo OFF /sys/kernel/debug/vgaswitcheroo/switch ) grub indeed now has "radeon.audio=1" for testing audio, I did aplay -l which gave me the card and device, which made me try aplay -D plughw:1,3 /usr/share/sounds/alsa/Front_Center.wav and lo! I get crystal clear sound on my hdtv. If I play an mp3 file as the argument to that command, I get noise as, I guess, aplay interprets the mp3 code as a wav. If I play a .wav that is not in the /usr/share/sounds/alsa/ directory, I get nothing. Internet flash video in browser plays no sound over hdmi. Both system sounds control and pavucontrol have hdmi cedar selected. Alas, I can not get sound for any gui test (left, right). Why would only aplay, and only when directed with "-D plughw", yield sound over hdmi? I've also tried only using one sound program at a time, if it was a limitation of alsa, so I tried aplay with web browser and even the sound control gui closed. I tried each of the last two, running alone. No improvement. alsamixer only shows hda intel and I think it's only the intel audio, not the hdmi.

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• Ubuntu 13.04 under Parallels Desktop - Black Desktop after X Windows Update

  - by Bob Reckhow

  I have been running Ubuntu 13.04 successfully on a MacBook Pro in a virtual machine in Parallels Desktop 9. Today (2013-10-17) after applying today's Ubuntu update, which included updates to X Windows, my Ubuntu 13.04 virtual machine launches, the launcher comes up, but the screen background is solid black, rather than the shaded orange colour of the default desktop background (and my desktop icons are "hidden behind this blackness", as well). I can launch applications from the launcher, and there is a very brief white flash on the screen, and then it returns to black. It's as if there is a "black blanket" covering the entire screen, so there is no way to interact with any application windows using the keyboard or mouse. The icons of the launcher are responsive to the mouse, so I can right-click and quit any application I have launched. But the rest of the screen is non-responsive to keyboard or mouse. This same behaviour happens with two different versions of Parallels Tools, so I am quite sure this is not a Parallels problem per se, although I could believe that it could be a paroblem with the interface between Parallels and this new updated X Windows code. Could anyone tell me what has happened, and how I might be able to fix this problem, so I can continue to use my Ubuntu 13.04 virtual machine? (I do have the option of reverting to a previous version of my virtual machine from before this update, but if possible I would prefer to keep my version of Ubuntu 13.04 up to date with the latest updates.) Thanks, Bob

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• How to make it so units don't stack up in one location?

  - by Daggio

  So I'm making a game in AS3, it's a strategy DotA-like game (for flash game equivalent, there's UDE) so far so good, I have the A* pathfinding algorithm all sorted out and the minion units move to the desired location as I want them to be. The problem a rise when a unit stops in a node that has already occupied by another friendly unit. Both (or more than two) of them stacks up in one location, it looks like they're one unit. I want to add collision detection so when they collide they don't stack up together. But now they stop when they collide on they way to a node. This isn't good because they won't move at all midway (they won't respond to enemy attacks like that). I've added a deltatime so they only stopped for 2 seconds before they move again to their designated designation. This moves them again but they flicker. Not how I want it. So, like the title said. How to make more than one units don't stack up in a node? And if possible, how to make them not flicker while moving (it's good if they can tell other friendly units on the way and avoid them accordingly)?

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• How to Create Shortcuts to Programs on USB Drives

  - by Lori Kaufman

  If you work on multiple computers, you probably use a USB drive to take your favorite portable software with you. Portable application suites like PortableApps.com, CodySafe, or Lupo PenSuite, each have a main menu providing access to the programs installed into the suite. However, there may be reasons why you need to create shortcuts to programs on your USB drive. You may be using a program that does not integrate into the suite’s main menu. Or, you may not be using an official portable application suite at all, and just placing portable software in a folder on your USB drive. Maybe you prefer using shortcuts on the root of the USB drive, like a portable desktop. Whatever your reason, you can’t just create a shortcut to an application on the USB drive and place it in the root of the drive. The shortcut will always refer to the full path of the application, including the drive letter. Different computers assign different drive letters to USB flash drives, so you would have to change the drive letter for your shortcuts when it changes. You can assign a static drive letter to the USB drive. However, if you would rather not do that, there is a way to create shortcuts to programs on a USB drive using relative paths. Because Windows does not support relative paths in shortcuts, we will show you how to create a “shortcut” on the root of a USB drive by creating a batch (.bat) file and converting it to an executable (.exe) file. What’s the Difference Between Sleep and Hibernate in Windows? Screenshot Tour: XBMC 11 Eden Rocks Improved iOS Support, AirPlay, and Even a Custom XBMC OS How To Be Your Own Personal Clone Army (With a Little Photoshop)

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• mount ext4 formated external drive->the drives green light won't stop flashing

  - by Gohlool

  I've installed kubuntu (after 10 years I am trying to play with linux) and manged to attach a external 1TB HDD drive over USB! The drive was formatted with NTFS and everything was working OK. I also changed the /etc/fstab here is my ntfs mount setting: /dev/sdb1 /media/samsung nts-3g auto,user,uid=1000,gid=1000,fmask=000,utf-8 0, 0 Now, I've reparationed the drive and formated it with ext4 filesystem! change my fstb like: /dev/sdb1 /media/samsung ext4 defaults,noatime 0, 0 now, when I plug my dive/or call sudo mount -a, my external drive's green light starts to flash and won't stop, but mount works .... What is the Problem? is this because of ext4? because with NTFS this won't happen! btw. after changing the owner of the /media/samsung and setting permissions 777, I can also access my drive like creating new folder atc. (although is's flashing constantly)! What is my mistake? btw. can you please let me know how to set the owner and the permissions for my /media/samsung directory in fstab for ext4 like I did it for NTFS? Thanks in advance

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• Is it a must to focus on one specific IT subject to be succesful?

  - by Ahmet Yildirim

  Lately I'm deeply disturbed by the thought that I'm still not devoted to one specific IT subject after so many years of doing it as a hobby. I've been in so many different IT related hobbies since I was 12. I have spent 8 years and now I'm 20 and just finished freshman year at Computer Eng. Just to summarize the variety: 3D Game Dev. and Modelling (Acknex, Irrlicht , OpenGL, GLES, 3DSMAX) Mobile App.Dev (Symbian, Maemo, Android) Electronis (Arduino) Web.Dev. (PHP, MYSQL, Javascript, Jquery, RaphaelJS, Canvas, Flash etc.) Computer Vision (OpenCV) I need to start making money. But I'm having problem to pick the correct IT business to do so. Is it a problem to have interest in so many different IT subjects?(in business world) I'm having a lot of fun by doing all those stuff from time to time. Other than making money I also noticed that having so many different interests is lowering my productivity. But I'm still having difficulty to pick one. I'm feeling close to all those subjects (time to time).

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• How can i install ubuntu on my ntfs hdd without formatting?

  - by Ridvan Coban

  My hdd is just one partition in ntfs (500gb) and 430 gb is used by my photos/movies/music etc which i never will want to lose. Actually i installed ubuntu on a usb flash drive (using it right now) but it is too slow that way. But my problem is : My computer is damaged ( maybe chipset or but not sure) and none of the windows versions (xp,vista,7) works on my pc. I get blue screen error as soon as windows startup logo shows. But ubuntu just works flawless. That means i cannot use wubi. I wanted to shrink my hdd without losing data (which can be done in windows) but found nothing about that on ubuntu forums. Is this possible? Or install ubuntu on my ntfs filesystem? Note : I don't have chance to backup 400 gbs of data. Sorry for my question if it's written a bit compex. I hope you get the point and someone has an idea ;)

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• Oracle Solutions supporting ICAM deployments

  - by user12604761

  The ICAM architecture has become the predominant security architecture for government organizations.  A growing number of federal, state, and local organizations are in various stages of using Oracle ICAM solutions.  The relevance of ICAM has clearly extended beyond the Federal ICAM mandates to any government program that must enable standards based interoperability like health exchanges and public safety.  The state government endorsed version of ICAM was just released with the NASCIO SICAM Roadmap. ICAM solutions require an integrated security architecture.  The major new release in August of Oracle Identity Management 11gR2 focuses on a platform approach to identity management.  This makes it easier for government organizations to acquire and implement a comprehensive ICAM solution, rather than individual products.  The following analysts reports describe the value of the Oracle Solutions: According to The Aberdeen Group:  “Organizations can save up to 48% deploying a platform of  (identity management) solutions when compared to deploying point solutions” IDC Product Flash, July 2012:  “Oracle may have hit the home run grand slam in identity management recently with the announcement of Oracle Identity Management 11g R2." For additional information on the Oracle ICAM solutions, attend the Webcast on October 10, 2012:  ICAM Framework for Enabling Agile, Service Delivery. Visit the Oracle Secure Government Resource Center for information on enterprise security solutions that help government safeguard information, resources and networks.

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• Multiplayer online game engine/pipeline

  - by Slav

  I am implementing online multiplayer game where client must be written in AS3 (Flash) to embed game into browser and server in C++ (abstract part of which is already written and used with other games). Networking models may differ from each other, but currently I'm looking toward game's logic run on both client and server parts but they're written on different languages while it's not the main problem. My previous game (pretty big one - was implemented with efforts of ~5 programmers in 1.5 years) was mainly "written" within electronic tables as structured objects with implemented inheritance: was written standalone tool which generated AS3 and C++ (languages of platforms to which the game was published) using specified electronic tables file (.xls or .ods). That file contained ~50 tables with ~50 rows and ~50 columns each and was mainly written by game designers which do not know any programming languages. But that game was single-player. Having declared problem with my currently implementing MMO, I'm looking toward some vast pipeline, where will be resolved such problems like: game objects descriptions (which starships exist within game, how much HP they have, how fast move, what damage deal...) actions descriptions (what players or NPCs can do: attack each other, collect resources, build structures, move, teleport, cast spells) - actions are transmitted through server between clients influences (what happens when specified action applied on specified object, e.i "Ship A attacked Ship B: field "HP" of Ship B reduced by amount of field "damage" of Ship A" Influences can be much more difficult, yes, e.i. "damage is twice it's size when Ship has =5 allies around him in a 200 units range during night" and so on. If to be able to write such logic within some "design document" it will be easily possible to: let designers to do their job without programmer's intervention or any bug-prone programming validate described logic transfer (transform, convert) to any programming language where it will be executed Did somebody worked on something like that? Is there some tools/engines/pipelines which concernes with it? How to handle all of this problems simultaneously in a best way or do I properly imagine my tasks and problems to myself?

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• Multiple displays using AMD drivers

  - by Halik

  I am currently running a dual display setup with nVidia 8800GTS video card, on a Ubuntu 12.10 box. The current setup uses nVidia TwinView to render the image on a 1920x1200 display and 1600x1200 one. I'm planning to add a third, 1280x1024 display to the setup. The change will require me to upgrade my GFX card to one supporting triple displays. I'll probably go with Sapphire Radeon 7770 (FLEX edition, to avoid additional active DP-DVI adapters). Before I invest in new GFX I wanted to ask - how well the AMD drivers will support such a setup. It does not matter whether it's fglrx or the OSS ones. If I remember correctly, when running Fedora on a Radeon x800, I had 'void' areas above and below the working area on my second display. The desktop was rendered in 1920+1280 width and 1200 height (which left 176px of vertical space accessible for my cursor and windows but not displayed on the screen - I'd prefer to avoid that). It may have very well been my misconfiguration back then. Generally, are there any solutions from AMD on par with TwinView? Or is it a non-issue at all? Also, I'm wondering about the usual stuff - hardware h264 decoding support, glitch-free flash support, any issues with Compiz/Unity?

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• 2D scene graph not transforming relative to parent

  - by Dr.Denis McCracleJizz

  I am currently in the process of coding my own 2D Scene graph, which is basically a port of flash's render engine. The problem I have right now is my rendering doesn't seem to be working properly. This code creates the localTransform property for each DisplayObject. Matrix m_transform = Matrix.CreateRotationZ(rotation) * Matrix.CreateScale(scaleX, scaleY, 1) * Matrix.CreateTranslation(new Vector3(x, y, z)); This is my render code. float dRotation; Vector2 dPosition, dScale; Matrix transform; transform = this.localTransform; if (parent != null) transform = localTransform * parent.localTransform; DecomposeMatrix(ref transform, out dPosition, out dRotation, out dScale); spriteBatch.Draw(this.texture, dPosition, null, Color.White, dRotation, new Vector2(originX, originY), dScale, SpriteEffects.None, 0.0f); Here is the result when I try to add the Stage then to the stage a First DisplayObjectContainer and then a second one. It may look fine but the problem lies in the fact that I add a first DisplayObjectContainer at (400,400) and the second one within it (that's the smallest one) at position (0,0). So he should be right over its parent but he gets render within the parent at the same position the parent has (400, 400) for some reason. It's just as if I double the parent's localMatrix and then render the second cat there. This is the code i use to loop through every childs. base.Draw(spriteBatch); foreach (DisplayObject childs in _childs) { childs.Draw(spriteBatch); }

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• Best way to go for simple online multi-player games?

  - by Mr_CryptoPrime

  I want to create a trivia game for my website. The graphic design does not have to be too fancy, probably no more advanced than a typical flash game. It needs to be secure because I want users to be able to play for real money. It also needs to run fast so users don't spend their time frustrated with game freezing. Compatibility, as with almost all online products, is key because of the large target market. I am most acquainted with Java programming, but I don't want to do it in Java if there is something much better. I am assuming I will have to utilize a variety of different languages in order for everything to come together. If someone could point out the main structure of everything so I could get a good start that would be great! 1) Language choice for simple secure online multiplayer games? 2) Perhaps use a database like MySQL, stored on a secure server for the trivia questions? 3) Free educational resources and even simpler projects to practice? Any ideas or suggestions would be helpful...Thanks!

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• How to make a good portfolio for IT student (who loves programming) like me?

  - by Viet

  I am currently a college student, and going to apply for an university in probably next month. Unlike art student who easily put on their works such as models, designs and so on on their portfolio; I am hitting a dead corner trying to find a "creative" way to showcase my work as a programmer. It would be normal if programmer shows his good project with source code and everything else. Well, it should be no problem with actual "good" projects, but all of my projects are crappy (can't help it because I am still student, and don't have much work experience) and I don't even know it's worth to show. Nonetheless, I have learned a lot in only 1 year since I started programming. I am now familiar with Java, PHP, Actionscript3, C#, Objective-C and on my way to learn Ruby. I plan to build a Flash portfolio using Actionscript with Ruby as backend to show what I have learnt. The problem is idea. How to show people that I learned a lot of useful thing? Otherwise I hit the dead end and LOL just show what I have on Github (but i certainly never want that...)

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• How to Upgrade Windows 7 Easily (And Understand Whether You Should)

  - by The Geek

  Just the other day I was trying to use Remote Desktop to connect from my laptop in the living room to the desktop downstairs, when I realized that I couldn’t do it because the desktop was running Windows Home Premium—that’s when I realized we’d never covered how to upgrade Windows, so here you are. You can upgrade from any version of Windows to the next version up, but it’s obviously going to cost a bit of money, and there’s a very good chance that you’ll have no reason to upgrade. Keep reading for the differences between the versions, whether you should bother upgrading, and how to actually do it Latest Features How-To Geek ETC HTG Projects: How to Create Your Own Custom Papercraft Toy How to Combine Rescue Disks to Create the Ultimate Windows Repair Disk What is Camera Raw, and Why Would a Professional Prefer it to JPG? The How-To Geek Guide to Audio Editing: The Basics How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 Take Better Panoramic Photos with Any Camera Make Creating App Tabs Easier in Firefox Peach and Zelda Discuss the Benefits and Perks of Being Kidnapped [Video] The Life of Gadgets in Price and Popularity [Infographic] Apture Highlights Turns Your Cursor into a Search Tool Add Classic Sci-Fi Goodness to Your Desktop with the Matrix Theme for Windows 7

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• Creating new games on Android and/or iPhone

  - by James Clifton

  I have a succesfull facebook poker game that is running very nicely, now some people have asked if I can port this to other platforms - mainly mobile devices (and I have been asked to make a tablet version, do I really need a seperate version?) I am currently a PHP programmer (and game designer) and I simply dont' have the time to learn Android and other languages - so I have decided to pay third parties to program them (if viable). The information I need to know is what programming language is needed for the following four devices - Android mobile phone, iPhone, iPad and tablets? Can they all run off a central sql database? If they can't then i'm not interested :( Do any of these run FLASH? Have I covered all my main bases here? For example if a person programs for a ANDROID mobile phone is that to much differant to an ANDROID tablet? They will have slightly differant graphics (because the tablet has a greater screen area might as well use it) but do they need to be started from scratch? Same goes for iPhone/iPad, do they really need to be programmed differantly if the only differance is the graphics?

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• Most suited technology for browser games?

  - by Tingle

  I was thinking about making a 2D MMO which I would in the long run support on various plattforms like desktop, mac, browser, android and ios. The server will be c++/linux based and the first client would go in the browser. So I have done some research and found that webgl and flash 11 support hardware accelerated rendering, I saw some other things like normal HTML5 painting. So my question is, which technology should I use for such a project? My main goal would be that the users have a hassle free experience using what there hardware can give them with hardware acceleration. And the client should work on the most basic out-of-the-box pc's that any casual pc or mac user has. And another criteria would be that it should be developer friendly. I've messed with webgl abit for example and that would require writing a engine from scratch - which is acceptable but not preferred. Also, in case of non-actionscript, which kind language is most prefered in terms of speed and flexability. I'm not to fond of javascript due to the garbage collector but have learned to work around it. Thank you for you time.

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