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• Can I install new version of Ubuntu in spair RAIDed partition with unetbootin

  - by artfulrobot

  I have Ubuntu 11.04 running on my home desktop which has 2 hard drives mirrored by RAID. The drives are partitioned with a big data partition, a swap partition and a couple of 20Gb partitions for OSes, one is 11.04 which is in use, and the other is kept spare for installing a later version. Which is what I'd like to do now. The idea of a 2nd partition for new OS is that I can try it, and if it's problematic, I can boot back into the original one - the machine is shared with others, so I need it to stay available! I have had horrible problems with software RAID after using a Live USB stick - basically it messes up the internal numbering of the RAID drives or something, anyway, the result is you can't boot after using it :-( and have to spend ages re-assembling the arrays, trying to remember grub commands etc etc. Quite a shocker when you consider booting from a Live USB is supposed not to affect the existing system. As I'm installing in a RAIDed disc, I would typically use the Alternative install (sad to hear that this is going to be dropped in future). However, I think I might be able to use unetbootin to trick the system into working on top of the existing system that understands RAID, with the normal ISO? If unetbootin loads from drives that are already understood to be RAIDED, then presumably it will only see md0... instead of sda, sdb... and as long as I don't need to repartition (I don't) it should be fine, right? Or is that just plain foolishness? Please tell me before I end up with a dead system (again!)

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• Serious error on first attempts to dual boot Ubuntu 14.04 with Win7

  - by beetle

  I downloaded Ubuntu 14.04 from the website which I saved to my desktop with WinRar. My trial with winrar had expired so I have now tried it with Active@Isoburner but I'm getting no further. I eventually got it burnt onto a DVD(4.7gb) and tried to boot from DVD and normally. Neither way works. It looks like its about to boot but then a message appears saying that a serious error has occurred...the disk drive for /tmp is not ready yet or not present...press I to ignore, s to skip or m for manual... At this point I'm lost and unsure what to do. My laptop Toshiba Equium A210-17I is over 5 or 6 years old. Available space on the Hard Drive is 24gb. 2gb RAM. It originally came with Windows Vista Home Premium edition but about a year ago or more a friend wiped it clean for me as I was having no end of problems with Vista. He installed Windows 7 Ultimate(which I don't have a disc for). How can I resolve this issue and get Ubuntu to boot up? Do I have to install a previous version of Ubuntu first? Any advice or help would be greatly appreciated. Kind regards. Beetle.

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• Resolution changes when using switch

  - by Edward D

  So, the "real" resolution of my monitor is 1024x768. That's what I'd use on my docked Windows laptop, and what I'd use on my Xubuntu desktop connected directly. When I connect a switch, to switch between the two, however, the ubuntu machine's resolution changes. Everything's still proportional, and it still thinks it's doing 1024x768, but the icons and fonts appear larger. Not 800x600 larger, but still big. When I used Xubuntu Precise, I created an xorg.conf file to set a resolution of 1280x1024 which made it look the way it does without the switch ... as a workaround. When I upgraded to Trusty, I lost this. I tried to re-create it, but doesn't seem to load my file. Ideally, I'd like to correct the original problem, but I'd settle for being able to up the resolution. I searched for a while, and tried to do it, but I'm giving up ... please help me out. Controller: Intel Corporation 82915G/P/GV/GL/PL/910GL Memory Controller Hub (rev 04) Monitor: NEC MultiSync LCD 1850e http://www.necdisplay.com/documents/UserManuals/LCD1850E_manual.pdf OS: Xubuntu 14.04 Trusty /etc/X11/xorg.conf: # YOU CREATED THIS FILE # sudo leafpad /etc/X11/xorg.conf Section "Device" Identifier "Configured Video Device" EndSection Section "Monitor" Identifier "NEC LCD1850E" # I found Synchronization Range at: # http://www.necdisplay.com/documents/UserManuals/LCD1850E_manual.pdf HorizSync 31.0-82.0 VertRefresh 55.0-85.0 EndSection Section "Screen" Identifier "Default Screen" Monitor "NEC LCD1850E" Device "Configured Video Device" SubSection "Display" Depth 24 Modes "1280x1024" "1280x960" "1024x768" "800x600" "848x480" "640x480" EndSubSection EndSection

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• Get Our New Book: The How-To Geek Guide to Windows 8

  - by The Geek

  Lets face it, Windows 8 is a major change to Windows, and for many, quite confusing. Today we’re releasing our very very first book: The How-To Geek Guide to Windows 8, which is written to be easy enough for anybody to understand, but comprehensive enough for experts to enjoy. There’s over a thousand screenshots and pictures in the book to help you get the hang of navigating around Windows 8, and nearly a thousand pages of content so there’s nothing you won’t understand. Everything is covered in traditional How-To Geek style, with step-by-step instructions complete with pictures, more pictures, and even more pictures. There’s over a thousand pictures in this book! This book is priced very reasonably for a nearly thousand-page computer book, at only $9.99 on the Amazon Kindle store. We don’t use DRM, and you can use it on any device that supports Kindle—including reading it directly in your web browser. If you like How-To Geek, you’ll like this book. What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8 HTG Explains: Why You Shouldn’t Use a Task Killer On Android

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• Unity Dashboard won't find local files, rearrange icons on two computers

  - by Stanton.Sculpture

  Suddenly I can't move icons around my unity launcher and the Dash won't search for my local files and folders. Was working when I first installed 13.10, but now it won't search for local files, and it won't let me rearrange the icons in any way. I've tried turning on and off all the scopes (lenses?) in multiple combinations, but it won't find any files unless I use nautilus to find them its mostly unresponsive. I can't see my recently used files, or files and folders scope at all. Dragging and dropping the icons on the side dock doesn't work, they only stick to my mouse until I put them back where they were. I cannot unlock any icons from the launcher, it just doesn't do anything when I click it. I tried rebooting both of my computers and its still won't function normally. I used ubuntu-bug -w to report a bug, no one has gotten back to me. Is there some option that I changed to cause this? This is a problem on both my laptop and Desktop. Please Help, Alex

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• Frequent disconnects using wlan AR9285

  - by John Neil

  I'm getting a large number of disconnects from my wireless when I switched to oneiric server (I did not see these happen with oneiric desktop) from my AR9285 wireless LAN device. Here is the syslog snippet: Oct 17 09:43:17 weather kernel: [ 1537.329138] wlan0: deauthenticated from 00:12:17:7a:8e:42 (Reason: 7) Oct 17 09:43:17 weather kernel: [ 1537.340409] cfg80211: All devices are disconnected, going to restore regulatory settings Oct 17 09:43:17 weather kernel: [ 1537.340423] cfg80211: Restoring regulatory settings Oct 17 09:43:17 weather kernel: [ 1537.340435] cfg80211: Calling CRDA to update world regulatory domain Oct 17 09:43:17 weather kernel: [ 1537.348571] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain Oct 17 09:43:17 weather kernel: [ 1537.348581] cfg80211: World regulatory domain updated: Oct 17 09:43:17 weather kernel: [ 1537.348586] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) Oct 17 09:43:17 weather kernel: [ 1537.348594] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Oct 17 09:43:17 weather kernel: [ 1537.348600] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) Oct 17 09:43:17 weather kernel: [ 1537.348607] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) Oct 17 09:43:17 weather kernel: [ 1537.348613] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Oct 17 09:43:17 weather kernel: [ 1537.348620] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Here is the relevant lspci output: # lspci | grep Atheros 02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01) I have done quite a bit of searching and saw discussions for previous versions of ubuntu that recommended installing the linux-backports-modules package. However, this does not appear to be available for oneiric (just the headers are listed as a package). Any advice on how to achieve a stable wireless connection for this server? It's location mitigates against using a wired connection.

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• HP Pavilion 15 with AMD dual graphics - Ubuntu live environment not starting

  - by creepus

  I've had this laptop for about a day now and have decided to try Ubuntu on it and determine if I want to install it. I created a USB, it booted (Secure Boot was on, I tried with Secure Boot off to no effect), and then the problem occurred. The screen turned off for a second, turned back on to a black screen, shut off again and turned back on with a dialogue box telling me that the system had to use low-graphics mode. I clicked OK, selected low-graphics mode from the menu and clicked OK. The screen switched to the boot messages and did not go any further than this. Ctrl+Alt+DEL started rebooting the laptop though. I tried booting again, but this time I edited the boot options in GRUB to add nomodeset. This time, the laptop only booted to a black screen. Ctrl+Alt+F2 took me to a prompt, I tried startx from there, but X didn't start, complaining that it wanted kernel mode setting back. I can not seem to find any option to disable one graphics chip or the other in the UEFI setup menus. Laptop : HP Pavilion 15-E004AU. The CPU : AMD A6-4400M APU with Radeon(tm) HD Graphics The graphics chip : AMD Radeon HD 7520G + 8670M Dual Graphics. The Ubuntu version : 13.10, 64 bit. Thanks. EDIT: I tried 12.04.3 LTS, it managed to bring the desktop up. There are severe graphics glitches after about two minutes though.

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• Java JRE 7 Automatic Upgrade and Demantra Requirements - Action Required

  - by user702295

  The following applies to ALL Demantra, EBS and Demantra Oracle Integrations: All EBS desktop administrators must disable JRE Auto-Update for their end-users immediately. See this externally-published article:     URGENT BULLETIN: Disable JRE Auto-Update for All E-Business Suite End-Users     https://blogs.oracle.com/stevenChan/entry/bulletin_disable_jre_auto_update Why is this required? If you have Auto-Update enabled, your JRE 1.6 version will be updated to JRE 7.     This may happen as early as July 3, 2012.     This will definitely happen after Sept. 7, 2012, after the release of 1.6.0_35 (6u35).  Oracle Forms is not compatible with JRE 7 yet.  JRE 7 has not been certified with Oracle E-Business Suite yet. Oracle E-Business Suite functionality based on Forms -- e.g. Financials -- will stop working if you upgrade to JRE 7. Related News Java 1.6.0_33 is certified with Oracle E-Business Suite.  See this externally-published article:     Java JRE 1.6.0_33 Certified with Oracle E-Business Suite     https://blogs.oracle.com/stevenChan/entry/jre_1_6_0_33

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• AllSparkCube Packs 4,096 LEDs into a Giant Computer Controlled Display

  - by Jason Fitzpatrick

  LED matrix cubes are nothing new, but this 16x16x16 monster towers over the tiny 4x4x4 desktop variety. Check out the video to see it in action. Sound warning: the music starts off very loud and bass-filled; we’d recommend turning down the speakers if you’re watching from your cube. So what compels someone to build a giant LED cube driven by over a dozen Arduino shields? If you’re the employees at Adaptive Computing, you do it to dazzles crowds and show off your organizational skills: Every time I talk about the All Spark Cube people ask “so what does it do?” The features of the All Spark are the reason it was built and sponsored by Adaptive Computing. The Cube was built to catch peoples’ attention and to demonstrate how Adaptive can take a chaotic mess and inject order, structure and efficiency. We wrote several examples of how the All Spark Cube can demonstrate the effectiveness of a complex data center. If you’re interested in building a monster of your own, hit up the link below for more information, schematics, and videos. How Hackers Can Disguise Malicious Programs With Fake File Extensions Can Dust Actually Damage My Computer? What To Do If You Get a Virus on Your Computer

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• Launching LibreOffice Files - Unusual Window Behaviour

  - by Mike

  Ubuntu 11.10 Unity. If I launch LibreOffice Files (ODS, ODT, ODP) with a double click in their home folders they launch with the appropriate application (Calc, Writer, Impress) however the application windows do not display the usual Close, Minimize, Restore buttons in the left hand corner. There is just a blank space where they should be. In the Unity launcher on the left there is not the expected white arrow next to the launcher icon and the open app is not seen by the ALT+TAB keystroke when you have multiple windows open. For example: if you have an app open in this way and say Firefox, if you minimize Firefox you are only left with the desktop and you have no way to locate the open LibreOffice app. Clicking the app's icon in the launcher simply opens another instance. A messy workaround is to click [Firefox] to a restored window and the LibreOffice app can be seen behind it allowing a mouse click to bring it forward. If I open the LibreOffice app from the launcher and then Open a file from its menu, it all behaves as expected. I don't find this as convenient; anyone know how to fix the bad behaviour?

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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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• How can I play .bin file with VLC?

  - by freebird

  For two days I have tried to get vlc play this .bin file. I played it fine in windows xp using vlc. So I decided to install same vlc thats on my xp partition and it plays through Wine the file no problem. Why won't it play natively? fr33bird@fr33bird-desktop:~/Downloads/********/*********$ vlc ********.bin VLC media player 1.1.10 The Luggage (revision exported) Blocked: call to unsetenv("DBUS_ACTIVATION_ADDRESS") Blocked: call to unsetenv("DBUS_ACTIVATION_BUS_TYPE") [0x8387914] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface. Blocked: call to setlocale(6, "") Warning: call to srand(1309627174) Warning: call to rand() Blocked: call to setlocale(6, "") (process:14474): Gtk-WARNING **: Locale not supported by C library. Using the fallback 'C' locale. Blocked: call to setlocale(6, "") libdvdnav: Using dvdnav version 4.1.3 libdvdread: Using libdvdcss version 1.2.10 for DVD access libdvdread: Can't stat /home/fr33bird/Downloads/*******/*******/*******.bin No such file or directory libdvdnav: vm: failed to open/read the DVD [0x87034e4] filesystem access error: cannot open file /home/fr33bird/Downloads/*****/*****/*******.bin (No such file or directory) [0x843535c] main input error: open of `file:///home/fr33bird/Downloads/******/****/********.bin' failed: (null) Funny it says no such file even thou it's attempting to read it. Xine says that the .bin is encrypted so I installed libdvdcss2 w32codecs ubuntu-restricted-codecs from Medibuntu still same issue. How can I fix this? I want to run this natively not through wine. I Even tried to change .bin to .mpg and .avi.

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• How can I use a script to control a VirtualBox guest?

  - by TheWickerman666

  Refer to : Launch an application in Windows from the Ubuntu desktop I was wondering if Takkat could elaborate on the actual execution i.e. howto in the script file. This will be greatly helpful. Thanks in advance my script file InternetExplorerVM.sh looks like this, execution is /path/to/InternetExplorerVM.sh "C:\Program Files\Internet Explorer\iexplore.exe" #!/bin/bash # start Internet Explorer inside of a Windows7 Ultimate VM echo "Starting 'Internet Explorer' browser inside Windows7 virtual machine" echo "" sleep 1 echo "Please be patient" VBoxManage startvm b307622e-6b5e-4e47-a427-84760cf2312b sleep 15 echo "" echo "Now starting 'Internet Explorer'" ##VBoxManage --nologo guestcontrol b307622e-6b5e-4e47-a427-84760cf2312b execute --image "$1" --username RailroadGuest --password bnsf1234 VBoxManage --nologo guestcontrol b307622e-6b5e-4e47-a427-84760cf2312b execute --image "C:\\Program/ Files\\Internet/ Explorer\\iexplore.exe" --username RailroadGuest --password bnsf1234 --wait-exit --wait-stdout echo "" echo "Saving the VM's state now" VBoxManage controlvm b307622e-6b5e-4e47-a427-84760cf2312b savestate sleep 2 #Check VM state echo "" echo "Check the VM state" VBoxManage showvminfo b307622e-6b5e-4e47-a427-84760cf2312b | grep State exit My apologies for any mistakes, this is my first time posting on askubuntu.Thanks a ton in advance. This has been very helpful. Need this for BNSF guests, their Mainframe emulator works exclusively on Java enabled Internet Explorer.

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• OPN Solutions Catalog Goes Mobile

  - by Meghan Fritz-Oracle

  v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Good news for our partners on this sunny Tuesday! Oracle PartnerNetwork is pleased to announce the launch of a mobile-ready OPN Solutions Catalog. Features include: A fluid search and browse experience regardless of device (phone, tablet, or desktop) Streamlined design and reorganized search facets, making it easier for customers to search and browse for partner profiles and their solutions The OPN Solutions Catalog is a free marketing tool for all active Oracle PartnerNetwork members. If you are an OPN partner… take advantage of it! To learn more about the new catalog, watch the Solutions Catalog Training which includes best practices and a demo on how to update your profile. Spend a few minutes with our experts to learn how you can expand your market reach and showcase your offerings to our customers, partners, and Oracle employees worldwide.Questions? Visit the Solutions Catalog Resource page or contact the Partner Business Center.

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• invitation: Oracle Endeca Information Discovery Bootcamp

  - by mseika

  The Oracle Endeca Information Discovery (OEID) Boot Camp is designed to give partners an understanding of OEID’s features, and how it complements the existing Oracle Business Intelligence suite. Participants will learn how to develop & implement solutions using a Data Discovery method. Training is in EnglishWhat will be covered?The Oracle Endeca Information Discovery (OEID) Boot Camp is a three-day class with a combination of lecture and hands-on exercises, tailored to make participants aware of the Oracle Endeca Information Discovery platform, and to gain valuable skills for the implementation of projects.The course will follow a combination of lectures and hands-on lab sessions, to allow participants to apply the knowledge they have gained by extracting from sample data sources, and creating an end-user application that will be used to answer several business questions. What You Will Learn Architecture: OEID Components, use of graphs, overview of clustering OEID Installation: Architecture planning, infrastructure requirements, installation process, production hints & tips OEID Administration: Data store management, administrative operations, portal configuration, data sources, system monitoring Indexing: Integration Suite, Data source analysis, Graph (ETL) creation, record design techniques Portlets: Studio portlets, custom portlet development, querying functions Reporting: Studio applications & best practices, visualizations, EQL PrerequisitesYou must bring a laptop with you for the Hands-on labs ENVIRONMENT – LAPTOP REQUIREMENTS For the OEID boot camp, participants will perform the hands-on lab exercises using a virtual machine image. These virtual machines will be provided to participants within a cloud environment, requiring participants to bring a laptop to the Boot Camp that can access a Windows server utilizing Microsoft RDP from their laptop. Participants will not need to install any software onto their laptops, but must ensure that they have the proper software installed for their OS, to connect through RDP to a server. HARDWARE • CPU: Dual-core, x64, 1.8Ghz or higher • RAM: 2GB SOFTWARE • Microsoft Remote Desktop Client • Internet Explorer 7, Firefox, or Google Chrome This boot camp is intended for prospective implementers of Oracle Endeca Information Discovery (OEID), or those in a presales role looking to gain insight into the technical benefits of this new package. Attendees should have experience and familiarity with the basic concepts of business intelligence. Where and When ? Monday, October 15th until wednesday, October 17th included 9:00 - 18:00 Oracle France 15, boulevard Charles de Gaulle 92715 Colombes Access Register Here Limited number of seats !

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• Is there an alternative to SDL 1.3 for a C++ game that should run on iOS and Android?

  - by futlib

  I've used SDL for many desktop games, always as the cross-platform glue for: Creating a window Processing input Rendering images Rendering fonts Playing sounds/music It has never disappointed me at those tasks. But when it comes to graphics, I prefer to work with the OpenGL API directly, even though all of our games are 2D. In the project I'm currently working on, I've made sure to only use the API subset supported by both OpenGL 1.3 and OpenGL 1.0, so making the thing run on Android should be easy, I thought. Turns out there is no official Android or iOS port of SDL yet. However, there's one in SDL 1.3, which is still in development. SDL 1.3 doesn't seem very appealing to me for three reasons: It's been in development for at least 4 years, and I have no idea when it will be done, not to mention stable. It's not ported to as many platforms as SDL 1.2. From what I've seen, it uses OpenGL for drawing, so I suppose the community will move away from directly using OpenGL. So I'm wondering if I should use a different library for our current project - it doesn't matter much if I need to port my existing code from SDL 1.2 to SDL 1.3 or to some other library. We're planning to release on Windows, Mac OS X, Linux, iOS and Android, so good support for these platforms is essential. Is there anything stable that does what I want?

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• How to prevent window list "confusion" when detaching eclipse views?

  - by amotzg

  I'm detaching eclipse views to float on my other screen in order to get more coding space on the first screen. When doing that, the detached windows appear in ubuntu's window list applet with the eclipse icon but with no title. Then, when pushing the main eclipse button on the window list, one of the detached views will get to front but not the main eclipse window. When using Alt+tab I can also see the extra eclipse icons but choosing the correct one for the main window works and make it the active window while also showing all detached childs. Other applications behave as expected, e.g. gimp floating panels don't show on the windows list and this is also the case with SlickEdit, Firefox child windows all show on window list but gets the focus correctly, etc. I can see the the workspace switcher show my two screens but in 'Monitor preferences' I see my two screens as one big screen. I'm working with ubuntu 10.04.4 under a VMware Workstation 7.1.3 build-324285. 'uname -a' output: Linux ubuntu 2.6.32-40-generic #87-Ubuntu SMP Tue Mar 6 00:56:56 UTC 2012 x86_64 GNU/Linux The desktop screen shot with the problem, ununtu's version, and Monitor preferences. How can I solve it and make only the main window show in window list or at least get activated when pushing it's button on the window list?

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• JavaOne Russia: Great Line Up

  - by Geertjan

  I'm (we're) in New York, a week of vacation. (Growing list of photos can be found here.) A week in Brooklyn, and around, flea markets, book stores, museums, music. One of several highlights will be seeing "Death of a Salesman" with Philip Seymour Hoffman in the main role, tomorrow. However, mentally, at least partly, I'm in Moscow, at JavaOne Moscow, 17 & 18 April. http://www.oracle.com/javaone/ru-en/index.html I'm doing two items there, thankfully on the first day, I always think the sooner the better: Tuesday 12:30 - 13:15 -- Unlocking the Java EE 6 Platform (in the Keynote Hall) Tuesday 16:30 - 18:15 -- Rapid Corporate Desktop Development (in HOL Room) Several speakers I'm looking forward to seeing there include Bert Ertman who will be talking about Spring/Java EE 6 migration, Dalibor Topic talking about Lambda expressions in JDK 8, Arun Gupta with his Java EE 6 HOL (appears to be a partial overlap with my session), and various others. And I hope I will make it to Angela Caicedo's HOL on JavaFX. The whole program, which is available via the link above, indicates that many (dare I say "most"?) of the sessions will be using NetBeans in one way or another. Looks like it will be a great conference.

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• Getting the PC speaker to beep

  - by broiyan

  There has been much written on getting the beep sound from Ubuntu releases over the years. Example: fixing the beep My needs are slightly different in that I do not want to ensure sound card beeps are functioning. Instead, I want PC speaker beeps, the kind produced by the original built-in speaker because I believe they will produce less CPU load. I have confirmed that my computer has the PC speaker by unplugging the external speakers and shutting down Ubuntu. At some point in the shutdown and restart process a beep is heard even though the external speakers have no power. I have tried the following: In /etc/modprobe.d/blacklist.conf, turn these lines into comments: #blacklist snd_pcsp #blacklist pcspkr In .bashrc /usr/bin/xset b on /usr/bin/xset b 100 Enable in the gnome terminal: Edit Profile Prefs General Terminal Bell Ensure no "mute" selections in: System Prefs Sound various tabs (uncheck them all). Select "Enable window and button sounds" in: System Prefs Sound Sound Effects In gconf-editor desktop gnome sound, select the three sound check boxes. In gconf-editor apps metacity general select the audible bell check box. Still I get no PC speaker beeps when I send code 7 to the console via my Java program or use echo -e '\a' on the bash command line. What else should I try? Update Since my goal is to minimize load on the CPU, here is a comparison of elapsed times. Each test is for 100,000 iterations. Each variant was performed three times so three results are presented for each. printwriter.format("%c", 7); // 1.3 seconds, 1.5 seconds, 1.5 seconds Toolkit.getDefaultToolkit().beep(); // 0.8 seconds, 0.3 seconds, 0.5 seconds try { Runtime.getRuntime().exec("beep"); } catch (IOException e) { } // 10.3 seconds, 16.3 seconds, 11.4 seconds These runs were done inside Eclipse so multiply by some value less than 1 for standalone execution. Unfortunately, Toolkit's beep is silent on my computer and so is code 7. The beep utility works but has the most cost.

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• CodePlex Daily Summary for Sunday, June 26, 2011

  CodePlex Daily Summary for Sunday, June 26, 2011Popular ReleasesDroid Builder: Droid Builder - 1.0.4194.38898: Support new type of patch package. Support plugin framework.Mosaic Project: Mosaic Alpha build 254: - Added horizontal scroll by mouse in fullscreen mode - Widgets now have fixed size - Reduced spacing between widgets - Widgets menu is scrollable by mouse now and not overlapping back button on small screens.Net Image Processor: v1.0: Initial release of the library containing the core architecture and two filters. To install, extract the library to somewhere sensible then reference as a file from your project in Visual Studio.Usage Agent: Usage Agent 9.0.8: Latest release. Changes include: - Fixes for Optus - Usage Delta statistic for BigPond - Eliminated the need for UAC prompt at every startupjQuery List DragSort: jQuery List DragSort 0.4.3: Fix item not dropping correctly on Chrome and jQuery 1.6KinectNUI: Jun 25 Alpha Release: Initial public version. No installer needed, just run the EXE.TerrariViewer: TerrariViewer v3.3 [v1.0.5 Compatible]: I have added support for all the new items in Terraria v1.0.5. I have also added the ability to put your character in hardcore mode or take them out via a simple checkbox on the stats tab. If you come across any bugs, please let me know immediately.Media Companion: MC 3.409b-1 Weekly: This weeks release is part way through a major rewrite of the TVShow code. This means that a few TV related features & functions are not fully operational at the moment. The reason for this release is so that people can see if their particular issue has been fixed during the week. Some issues may not be able to be fully checked due to the ongoing TV code refactoring. So, I would strongly suggest that you put this version into a separate folder, copy your settings folder across & test MC that...Terraria World Viewer: Version 1.5: Update June 24th Made compatible with the new tiles found in Terraria 1.0.5Kinect Earth Move: KinectEarthMove sample code: Sample code releasedThis is a sample code for Kinect for Windows SDK beta, which was demonstrated on Channel 9 Kinect for Windows SKD beta launch event on June 17 2011. Using color image and skeleton data from Kinect and user in front of Kinect can manipulate the earth between his/her hands.NetOffice - The easiest way to use Office in .NET: NetOffice Release 0.9b: Changes: - fix critical issue 262334 (AccessViolationException while using events in a COMAddin) - remove x64 Assemblies (not necessary) Includes: - Runtime Binaries and Source Code for .NET Framework:......v2.0, v3.0, v3.5, v4.0 - Tutorials in C# and VB.Net:..............................................................COM Proxy Management, Events, etc. - Examples in C# and VB.Net:............................................................Excel, Word, Outlook, PowerPoint, Access - COMAddi...MiniTwitter: 1.70: MiniTwitter 1.70 ???? ?? ????? xAuth ?? OAuth ??????? 1.70 ??????????????????????????。 ???????????????? Twitter ? Web ??????????、PIN ????????????????????。??????????????????、???????????????????????????。Total Commander SkyDrive File System Plugin (.wfx): Total Commander SkyDrive File System Plugin 0.8.7b: Total Commander SkyDrive File System Plugin version 0.8.7b. Bug fixes: - BROKEN PLUGIN by upgrading SkyDriveServiceClient version 2.0.1b. Please do not forget to express your opinion of the plugin by rating it! Donate (EUR)SkyDrive .Net API Client: SkyDrive .Net API Client 2.0.1b (RELOADED): SkyDrive .Net API Client assembly has been RELOADED in version 2.0.1b as a REAL API. It supports the followings: - Creating root and sub folders - Uploading and downloading files - Renaming and deleting folders and files Bug fixes: - BROKEN API (issue 6834) Please do not forget to express your opinion of the assembly by rating it! Donate (EUR)Mini SQL Query: Mini SQL Query v1.0.0.59794: This release includes the following enhancements: Added a Most Recently Used file list Added Row counts to the query (per tab) and table view windows Added the Command Timeout option, only valid for MSSQL for now - see options If you have no idea what this thing is make sure you check out http://pksoftware.net/MiniSqlQuery/Help/MiniSqlQueryQuickStart.docx for an introduction. PK :-]HydroDesktop - CUAHSI Hydrologic Information System Desktop Application: 1.2.591 Beta Release: 1.2.591 Beta Releasepatterns & practices: Project Silk: Project Silk Community Drop 12 - June 22, 2011: Changes from previous drop: Minor code changes. New "Introduction" chapter. New "Modularity" chapter. Updated "Architecture" chapter. Updated "Server-Side Implementation" chapter. Updated "Client Data Management and Caching" chapter. Guidance Chapters Ready for Review The Word documents for the chapters are included with the source code in addition to the CHM to help you provide feedback. The PDF is provided as a separate download for your convenience. Installation Overview To ins...DropBox Linker: DropBox Linker 1.3: Added "Get links..." dialog, that provides selective public files links copying Get links link added to tray menu as the default option Fixed URL encoding .NET Framework 4.0 Client Profile requiredDotNetNuke® Community Edition: 06.00.00 Beta: Beta 1 (Build 2300) includes many important enhancements to the user experience. The control panel has been updated for easier access to the most important features and additional forms have been adapted to the new pattern. This release also includes many bug fixes that make it more stable than previous CTP releases. Beta ForumsBlogEngine.NET: BlogEngine.NET 2.5 RC: BlogEngine.NET Hosting - Click Here! 3 Months FREE – BlogEngine.NET Hosting – Click Here! This is a Release Candidate version for BlogEngine.NET 2.5. The most current, stable version of BlogEngine.NET is version 2.0. Find out more about the BlogEngine.NET 2.5 RC here. If you want to extend or modify BlogEngine.NET, you should download the source code. To get started, be sure to check out our installation documentation. If you are upgrading from a previous version, please take a look at ...New Projects6_6_6_w_m_s_open: jwervxsdfcfcf: cfcfChairforce hackathon project: project for hackathonDot Net Nuke Ajax Modules: This is a small collection of modules I think on once in a while which intend to improve a little dnn's user experience.Gnosis Game Engine: A simple game engine for the XNA 4.0 frame work that I am working on, mostly as a learning experience. I found that XNA game engines either require you to pay or are XNA 4.0 incompatible, and so this is my solution to that problem.KA_WindowsPhone7_Samples: Sample Code for Windows Phone 7 from http://kevinashley.comKinect MIDI Controller: This tool allows you to use a Kinect Sensor as a MIDI Controller for your Digital Audio Workbench. The tool is written in C#, and uses Microsoft Kinect SDK. Mosaic Project: Mosaic is an application that brings Metro UI to your desktop by live widgets.Movie Gate: A movie database that is also able to play the movies with your favorit media player.Musical Collective: An open-source web service that enables Musicians to collaborate on songs. Written in ASP.NET MVC (C#).NcADS-MVC: Clasificados MVCPokeTD: Ein kleines 2D Pokemon Tower-Defense Spiel. Es ist in C# und XNA geschrieben.PRO-TOKOL: PRO-TOKOL Server is a Programmable Logic Controller communication driver. The project is 100% coded in .NET Managed code. So, the dll can be included in any .NET project. The project uses the Microsoft Workflow Foundation to implement the DF1 Receiver and Transmitter logic.ShumaDaf: small project for display movies info directly from file structure using mymovies.xml. program create one simple xml file and display it!Silverlight Policy Service: The windows service act as a server and listens on TCP port 943 using IPv4 and IPv6. The socket policy included in the project allows all silverlight client applications to connect to TCP ports 4502-4506.SkinObject Module Wrapper: The SkinObject Module Wrapper is a DotNetNuke module that will allow you to add any DNN SkinObject to a page dinamically as if it was a DNN Module. Without any skin modification you can now inject new SkinObjects to you pages, configure the properties and change them on the fly.SkyNet0.3: Program that one should not be able to close.Team Zero Game One: SVN for the personal project(s) of Team Zero - Game One. We are creating a free game in HTML5 canvas using the CAKE api, found here: http://code.google.com/p/cakejs/ The game is about programming a small robot to move through a maze, sneaking past guards and other obstacles, using event-based programming. We've seen a number of games that allow you to "program" a character, and thought it would be interesting to do a different take on it. The game is still in early production, and actively ...Test-Driven Scaffolding (TDS): TDS helps developers of C# function members (methods, indexers, etc.) to quickly write drivers for code under development; these can easily be converted later to NUnit tests. TDS consists of C# code that can be pasted into a new or existing project and removed when no longer needed.Usage Agent: The Usage Agent toolset is designed to help manage your ISP data usage without having to log into your ISP usage page. It can optionally monitor your network card throughput and produce reports on usage. Developed in VB.NET.

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• Why does working processors harder use more electrical power?

  - by GazTheDestroyer

  Back in the mists of time when I started coding, at least as far as I'm aware, processors all used a fixed amount of power. There was no such thing as a processor being "idle". These days there are all sorts of technologies for reducing power usage when the processor is not very busy, mostly by dynamically reducing the clock rate. My question is why does running at a lower clock rate use less power? My mental picture of a processor is of a reference voltage (say 5V) representing a binary 1, and 0V representing 0. Therefore I tend to think of of a constant 5V being applied across the entire chip, with the various logic gates disconnecting this voltage when "off", meaning a constant amount of power is being used. The rate at which these gates are turned on and off seems to have no relation to the power used. I have no doubt this is a hopelessly naive picture, but I am no electrical engineer. Can someone explain what's really going on with frequency scaling, and how it saves power. Are there any other ways that a processor uses more or less power depending on state? eg Does it use more power if more gates are open? How are mobile / low power processors different from their desktop cousins? Are they just simpler (less transistors?), or is there some other fundamental design difference?

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• How can I deal with file association in different application(not in Nautilus)?

  - by Julius

  Maybe i don't understand the system. Upgraded to (reinstalled) Ubuntu 11.04. Is there any way the applications can use something that i set in nautilus, or it's just a wrong idea about the usage? In nautilus the file association works great, easy, handy and so on... My first problem was when installed chromium. Downloaded a file, a popup ask for assocation, set nautilus. And it only opens folder, for any file show an error: it is not a direcrory. Ok, so i thought Google chrome changed, because previously .pdf open acrobat,.torrent open vuze and so on. But now i have to open nautilus on download folder with it, than select and open the preferable application by manually and can't use any automatism i used to. Then in gnome commander , it not followed the default association i set in nautilus. Ok maybe it is commander fault. use it's own. Then in calibre, the "read" use again this default "can't open its not a directory" error So it's seems to me the applications not using well this file associations or i really don't understand the aim of file associations system (mime,.desktop files,...) If there is no solution i think i have to search some program (if any exist's) which can identify and launch application and set as default instead nautilus.

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• Is the development of CLI apps considered "backwards"?

  - by user61852

  I am a DBA fledgling with a lot of experience in programming. I have developed several CLI, non interactive apps that solve some daily repetitive tasks or eliminate the human error from more complex albeit not so daily tasks. These tools are now part of our tool box. I find CLI apps are great because you can include them in an automated workflow. Also the Unix philosophy of doing a single thing but doing it well, and letting the output of a process be the input of another, is a great way of building a set of tools than would consolidate into an strategic advantage. My boss recently commented that developing CLI tools is "backwards", or constitutes a "regression". I told him I disagreed, because most CLI tools that exist now are not legacy but are live projects with improved versions being released all the time. Is this kind of development considered "backwards" in the market? Does it look bad on a rèsumè? I also considered all solutions whether they are web or desktop, should have command line, non-interactive options. Some people consider this a waste of programming resources. Is this goal a worthy one in a software project?

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• How to avoid to be employed by companies which are candidates to DailyWTF stories?

  - by MainMa

  I'm reading The Daily WTF archives and especially those stories about IT-related companies which have a completely wrong approach of software development, the job of a developer, etc. Some stories are totally horrible: a company don't have a local network for security reasons, another one has a source control server which can only be accessed by the manager, etc. Add to it all those stories about managers who don't know anything about their work and make stupid decisions without listening to anybody. The thing is that I don't see how to know if you will be employed by such company during an interview. Of course, sometimes, an interviewer tells weird things which gives you an idea that something goes very wrong with the company (in my case, the last manager said I should work 100% of my time through Remote Desktop, connected to on an old and slooooow machine, because "it avoids several people to modify the same source code"; maybe I should explain him what SVN is). But in most cases, you will be unable to get enough information during the interview to get the exact image of a company. So how to avoid being employed by this sort of companies? I thought about asking to see some documents like documentation guide or code style guidelines. The problem is that I live in France, and here, most of the companies don't have those documents at all, and in the rare cases where those documents exist, they are outdated, poorly written, never used, or do force you to make things that don't make any sense. I also thought about asking to see how programmers actually work. But seeing that they have dual screens or "late-modern-artsy-fartsy furnishings" doesn't mean that they don't have people making weird decisions, making it impossible to work there. Have you been in such situations? What have you tried? Have it worked?

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• Copy-and-Pasted Test Code: How Bad is This?

  - by joshin4colours

  My current job is mostly writing GUI test code for various applications that we work on. However, I find that I tend to copy and paste a lot of code within tests. The reason for this is that the areas I'm testing tend to be similar enough to need repetition but not quite similar enough to encapsulate code into methods or objects. I find that when I try to use classes or methods more extensively, tests become more cumbersome to maintain and sometimes outright difficult to write in the first place. Instead, I usually copy a big chunk of test code from one section and paste it to another, and make any minor changes I need. I don't use more structured ways of coding, such as using more OO-principles or functions. Do other coders feel this way when writing test code? Obviously I want to follow DRY and YAGNI principles, but I find that test code (automated test code for GUI testing anyway) can make these principles tough to follow. Or do I just need more coding practice and a better overall system of doing things? EDIT: The tool I'm using is SilkTest, which is in a proprietary language called 4Test. As well, these tests are mostly for Windows desktop applications, but I also have tested web apps using this setup as well.

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