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• RTOS experience

  - by Subbu

  Hi, I have been working as an embedded software engineer on mostly 8 bit micro-controller firmware and desktop/mobile applications development for the past five years. My work on a WinCE project (in which I got introduced to .NET CF) was short lived. I did use core APIs for interrupt processing, peripheral communication, etc...but again, not exactly a pure RTOS environment. In order to get together more solid experience for growing more in the embedded field, I want to work more with RTOSes. Will buying an evaluation board with an RTOS and putting together a project at home be regarded as a good experience or will an online course be more useful? I am just not clear as to what will be regarded as good experience. Any suggestions or directions will greatly help me. I have a passion for the field but just a need a point in the right direction. Thanks for any help in advance. Regards, Subbu

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• Windows 8 client virtualization

  - by John Paul Cook

  Hyper-V is coming to Windows 8, but you must have a processor that supports SLAT. Virtual machines created with Virtual PC aren’t easily transferred to Windows 2008 Hyper-V and vice-versa. With Windows 8, it will be easy to move vhds from Windows 8 on your laptop or desktop to Windows 8 server and back again. To find out if your processor supports SLAT, run coreinfo –v from a command window running as administrator. Download coreinfo from here . My MacBook Pro supports SLAT as this output shows:...(read more)

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• How to get notfications of ppa updates?

  - by maxschlepzig

  How can I get notified of updates to a certain PPA? For example when I am interested in new package versions of a certain package in a certain PPA? If a user has the package in question installed and is using the default desktop, she probably get notified via an icon in the traybar or something like that. But I am searching for a method which works even when the package is not installed (and without gnome). It should be reliable and prompt. Does launchpad provides some RSS/Atom-Feed features for PPAs? Or email notifications? (As a sidenote: I am surprised that even with my own PPA I only get an upload notification via mail - but no notification when the binary package is finished.)

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• How do I handle "Firmware file X not found" stopping bootup?

  - by John Baber

  I recently upgraded my desktop mac to Precise and now can't get past the Ubuntu 12.04 splash page. The splash freezes with [ 19.931097] b32-phy0 ERROR: Firmware file "b43/ucode16_mimo.fw" not found [ 19.9311126] b32-phy0 ERROR: You must go to http://wireless.kernel.org/en/users/Drivers/b43#devicefirmware and download the correct firmware for this driver version. Please carefully read all instructions on this website. written on it This is when I choose 3.2.0-generic from the grub menu. If I choose to load up older kernels, I still get the same thing. How can I make my computer finish booting again? I'm able to ssh into the machine and poke around, but the actual screen freezes at the splash.

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• Cinnamon Settings blank after update

  - by Seth Balmore

  Using Ubuntu 12.04 with the cinnamon desktop, I installed the most recent updates and now when I open "System Settings" the entire window appears as a blank white screen. The headers for APPEARANCE, PREFERENCES, and HARDWARE are present, but the usual icons for *Background, *Hot Corners, *Printers, etc. are no longer visible. Some of these settings can still be altered via the terminal: cinnamon-settings backgrounds cinnamon-settings applets cinnamon-settings mouse and touchpad But other commands, such as cinnamon-settings hot corners are met with an error. This is obviously a problem with cinnamon, so I just want to bring it to attention and find out when they plan on fixing the bug. A workaround can be found on the web, but it seems way to risky to rely on.

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• How to Create a Custom Refresh Image in Windows 8

  - by Taylor Gibb

  We have already shown you how to use the Refresh and Reset features in Windows 8, now we are back to show you how you can create a custom refresh image. This means next time you refresh your Windows 8 PC, you can use a custom image instead of the one that shipped with your PC. When you refresh your PC, all your files as well as Metro applications that you downloaded from the Windows store are kept. This is great, however, all your non-metro applications and PC settings are removed. If you are like me and have a lot of non-metro apps this can be very annoying, but you can fix this by creating a refresh image that already has your apps installed and your settings tweaked. 6 Start Menu Replacements for Windows 8 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

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• permission denied errors while starting namenode in hadoop 2.2.0

  - by Riddle

  I recently installed hadoop2.2.0 on my desktop running : Linux livingstream 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Lin I am able to format the namenode just fine , however when I start the namenode using the following command: hadoop-daemon.sh start namenode I get the following permission errors , can anyone please help me with these errors: hduser@livingstream:/usr/local/hadoop$ hadoop-daemon.sh start namenode mkdir: cannot create directory `/var/run/hadoop': Permission denied starting namenode, logging to /var/log/hadoop/hduser/hadoop-hduser-namenode- livingstream.out /usr/sbin/hadoop-daemon.sh: line 138: /var/run/hadoop/hadoop-hduser-namenode.pid: No such file or directory Can you please help me with these errors. Best Regards, Ishan

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• New Pluralsight app for Android will bring variable speed

  Usually, it is very interesting to compare the 'same' software applications and apps between various platforms, and the Pluralsight offline players are an outstanding example to have a closer look at. The original Silverlight desktop offline player, the iOS app of Pluralsight and the new HTML5 online player all have variable playback speed. Just the Android app doesn't. But not for long. A couple of days Pluralsight finally announced that their development department found a reliable solution to provide flexible speeds. For the brave ones among us, please have a look at the public beta they are offering on their blog article.  Please be aware of, that using any Pluralsight offline player requires to have a Plus subscription. Otherwise, you cannot use the application after all.

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• Links shortener with advanced reporting?

  - by Qualcuno

  I am serching for a script (preferably in PHP) or an external solution which lets me create an "url shortener" with advanced reports. We have been using Google Short Links for a while: it works really well, but it lacks reporting (it only displays a counter with the total number of redirects). Our setup is as follows: "go.mydomain.com" points to the web service, and we can create links such as "go.mydomain.com/product1". What I'm looking for is a similar service (or self-hosted solution) but with advanced reports, so we can track redirects by day, month, etc, distinguish between mobile and desktop users (very important!) and so on.

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• A program/CLI command to help translate multiple file names

  - by cipricus

  I have hundreds of files with different names that I want to translate into a different language. Is there an application/CLI action that would allow me to copy all this names as in a list/table and then, after having translated them, to paste them back into the list/table, or that would allow a procedure somewhat similar to "Rename" in Thunar but with a more complex action closer to what I have described? (I am in Lubuntu and I prefer not to use Nautilus due to unwanted interference with LXDE/pcmanfm desktop and LXPanel. If there is a solution in Nautilus please provide it but try to give an alternative if possible.)

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• Virtual Developer Day: Oracle WebLogic Server & Java EE (#OTNVDD)

  - by Justin Kestelyn

  Virtual Developer Day is back with a vengeance! On Feb. 1, login to learn how Oracle WebLogic Server enables a whole new level of productivity for enterprise developers. Also hear the latest on Java EE 6 and the programming tenets that have made it a true platform breakthrough, and get hands-on with our VirtualBox virtual machine image! Even better, you never have to leave your desk - you'll get access to live sessions with chat support, and even 1-1 desktop sharing upon request. It's a no-brainer, get registered!

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• GDD-BR 2010 [1C] Google Web Tookit: What it is, How it Works and Deeper Dives

  GDD-BR 2010 [1C] Google Web Tookit: What it is, How it Works and Deeper Dives Speaker: Chris Ramsdale Track: Cloud Computing Time slot: C [12:05 - 12:50] Room: 1 Level: 151 If you're like the rest of us, at some point in your web app development you've wondered if there was an easier solution. One that includes built-in debuggers, code refactoring, reliable syntax highlighting, etc. After all, why should the server-side and desktop programmers get all of the good tools? The good news is that with Google Web Toolkit (GWT) you do have access to these tools. And in this session, Chris Ramsdale will get you up and running with GWT, including what it is, how it works, and deeper dives into generators, native Javascript interop, and compiler optimizations. From: GoogleDevelopers Views: 1 0 ratings Time: 35:02 More in Science & Technology

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• Why is Ubuntu unmounting my primary hard drive?

  - by Twisol

  I'm running Ubuntu 10.10 on my laptop (an Asus G73j), dual-booting Windows 7 if that matters. After using the computer for couple of hours or so, I get a popup complaining that a file was unmounted, then my GNOME desktop panels disappear. I can't save any unsaved work (the file browser shows "Filesystem" as totally empty), and other programs break in odd ways (like Chrome can't browse to any new pages, but keeps current ones going... at least I still have Pandora to listen to when this happens!). I've tried looking in the system logs to no avail; I'm assuming that it can't write any errors to the logs because, of course, the logs are on the primary hard drives. This started happening maybe a few days ago. Yesterday I upgraded from 10.4, but I believe it was happening before then. Any advice for figuring this out?

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• Accessing and controlling to the modem by ethernet connection

  - by iwd35

  I have a PC and I connectted to my modem (via ethernet cable). I want to prepare interface (VS2010) and I want to connect it and do the following: Modem access the admin page (IP: 192.168.1.1 password: admin password: admin) Wireless band (2.4GHz or 5GHz) changing Network mode (N-only, B/G/N- Mixed) changing channel changing (channel 1, 2,3, etc.) The project will be a desktop application. I will use VB .NET; modem model:cisco linksys wag320. How I can do it?

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• Fold a Papercraft Monster to Decorate Your Desk for Halloween

  - by Jason Fitzpatrick

  If you’re looking for a last minute and subtle way to add a little dash of Halloween to your office, these papercraft monsters are perfect for perching on your monitor stand. Courtesy of the designers at AnimateMe, there are a total of seven different papercraft monsters of all shapes and colors. Each free template includes the monster itself, plus tiny little humans to run in terror from the monster. Hit up the link below to download the templates and folding instructions. Monster Papercraft [via Neatorama] 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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• Parallel.For Inconsistency results

  - by ni Gue ???

  I am using VB.net to write a parallel based code. I use Parallel.For to generate pairs of 500 objects or in combination C(500,2) such as the following code; but I found that it didn't always generate all combinations which should be 124750 (shown from variable Counter). No other thread was runing when this code was run. I am using a Win-7 32 Bit desktop with Intel Core i5 CPU [email protected], 3.33 GHz and RAM 2GB. What's wrong with the code and how to solve this problem? Thank You. Dim Counter As Integer = 0 Parallel.For(0, 499, Sub(i) For j As Integer = i + 1 To 499 Counter += 1 Console.Write(i & ":" & j) Next End Sub) Console.Writeline("Iteration number: " & Counter)

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• Fan very loud in Ubuntu 12.10

  - by Jon

  I recently installed 12.10 on my Desktop PC, moving away from Windows 7. For some reason, the fan in my computer is making an enormous amount of noise (it is running at full speed constantly). Under Windows 7, the fan would slow itself down and run at an acceptable noise level. Now, it is nearly unbearable. Checked the processes, and none are taking up a huge load on the CPU. Please help as I really can't endure this noise, and I do not want to go back to Windows 7 on this box. Some specs: - Intel 2.26 duo core - ATI 4870 - 4GB - 650W power supply

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• What has been your experience with paid support from Canonical ?

  - by gabkdlly

  I am considering buying "Ubuntu Desktop Support" from Canonical for 2 reasons: I have a couple of issues that I would like professional help with. ( Specifically a recurring kernel panic, and a slow wireless connection. ) I would like to lend a helping hand toward supporting Ubuntu financially. However, I am a bit worried that once I transfer the money, they will end up just referring me to the bug tracker on Launchpad. Also, free support options like this site have the pleasant property that they are open to the internet, meaning that if my issue gets fixed, it is more likely to help others with the same problem. What does paying for support from Canonical actually get you ?

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• How essential is it to make a service layer?

  - by BornToCode

  I started building an app in 3 layers (DAL, BL, UI) [it mainly handles CRM, some sales reports and inventory]. A colleague told me that I must move to service layer pattern, that developers came to service pattern from their experience and it is the better approach to design most applications. He said it would be much easier to maintain the application in the future that way. Personally, I get the feeling that it's just making things more complex and I couldn't see much of a benefit from it that would justify that. This app does have an additional small partial ui that uses some (but only few) of the desktop application functions so I did find myself duplicating some code (but not much). Just because of some code duplication I wouldn't convert it to be service oriented, but he said I should use it anyway because in general it's a very good architecture, why programmers are so in love with services?? I tried to google on it but I'm still confused and can't decide what to do.

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• How to control fan speed and temperatures on Asus A8Js laptop running Ubuntu Server?

  - by Azeworai

  Hi, I have tried installing asusfan and lm-sensors but I'm unable to control my fans to cool my laptop down sufficiently. Currently it overheats at about 100 degrees celsius and my sensors output somehow does not have any fan information on it: jackson@OLYMPIA:~$ sensors acpitz-virtual-0 Adapter: Virtual device temp1: +69.0°C (crit = +110.0°C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +66.0°C (high = +100.0°C, crit = +100.0°C) coretemp-isa-0001 Adapter: ISA adapter Core 1: +66.0°C (high = +100.0°C, crit = +100.0°C) I have checked my bios and there isn't any fan settings there. I can consistently overheat just by converting a video via Handbrake. I have ubuntu-desktop installed for a GUI. Is there a way for me to control my fans to start spinning before it reaches a critical temperature and kills itself?

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• Display launcher over a GNOME panel (instead of under)

  - by Greg Treleaven

  I've set up my desktop so that I have a classic style gnome-panel at the bottom to show my active applications with a main menu button on the side. The problem is that the panel stretches across the whole width of the screen and over the launcher, making it difficult to access the icons at the bottom. I could untick the expand option in the panel's properties, but there's no way to resize it so it takes up the rest of the right part of the screen, which is what I want. And if enough applications are open it stretches all the way anyway. I don't want to auto-hide it either. What I'd like to do is make the launcher go over the top of the panel so I can fully access both the launcher and the panel at the same time. If it's possible, how do I do this?

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• Wrong notification on GNOME Shell?

  - by audrianore

  I just installed GNOME Shell on my 12.04 a couple hours ago. The notifications are just cool, and I installed shell extensions, and it works smoothly in 1 hour. Then I restarted my computer for some reason, start back in to GNOME. And I was surprised with the default notification showed up. It replaced the GNOME notifications! I tried to: Reinstall gnome-shell. (autoremove and install) Reset desktop configuration. But it didn't work at all. Is there anything I can do to fix it? Plus: I got a double notification (osd + gnome notification showed up) when someone chatted me.

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• Ubuntu install and boot failure 11.10

  - by Robert Moody

  I installed Ubuntu 11.10 on my machine alongside Vista, and upgraded to 12.4. I decided I liked 11.10 better, so I tried to install that again as my only OS, except I increased the size of the swap file partition to 2 gigs. It boots up fine off the CD, but when I install, it gives me a non-specific error, and returns me to the desktop. When attempting to boot off the hard drive, I get a black screen with a blinking underscore that starts in the corner, drops a couple spaces, and stays there. I managed to install 9.04, and am currently using that. The computer is a little outdated, but was fired up for the very first time last week, so the hard drive is in new condition and the CD rom drive is fine too. Running a 3GHzX2 processor. I ran a memory test, which came back fine, and being new to the linux environment, I've been scratching my head for the last couple days. How can I fix this?

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• Where is Nautilus icon file located and how is it chosen?

  - by Steve

  When I plug my Garmin Nuvi 265 GPS device into my computer via a USB cable, it mounts as a drive with a blue triangle icon instead of the default gray hard drive icon. HOW does Nautilus know how to do this? After much laborious searching, I found that the icon info is stored in ~/.gconf/apps/nautilus/desktop-metadata/GARMIN@46@volume/gconf.xml -- but only when a custom icon is selected. So Where is this blue icon file? Why does Nautilus use it instead of the plain drive icon? Is there a way to have give each of my drives a custom icon -- so that when I stick in my various flash drives, they have a distinctive icon (i.e. a 'favicon.ico' file on root or such?) Using Gnome 2.30.2 on Ubuntu 10.04.

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• Gnome shell crashing in 11.10 with 'purple haze' effect

  - by Andy

  I've just got Gnome with 11.10 up and running with my netbook and liked it so much I thought I'd get my parents old machine sorted with Ubuntu too. Unity works fine but when I try to switch to Gnome shell, I get problems. On login, the wallpaper appears as normal but then the colour bleeds out from the centre, leaving traces of it around the edge in a purple haze (yes, I do like Jimi Hendrix but I'm not making this up). When I go to applications, typing then pressing enter in the search field dumps me out so there's nothing but File / Edit / View etc in top left; starting a program seems to work but then there's only a white screen and no program window. Gnome classic works fine, from the limited use I've given it. I'm using an Asus desktop with ABIT motherboard, 2.6ghz with 1gb RAM; I've checked drivers and it says I'm up to date, Nvidia graphics. Anyone any ideas?

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