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  • Troubleshoot broken ZFS

    - by BBK
    I have one zpool called tank in RaidZ1 with 5x1TB SATA HDDs. I'm using Ubuntu Server 11.10 Oneric, kernel 3.0.0-15-server. Installed ZFS from ppa also I'm using zfs-auto-snapshot. The ZFS file system when zfs module loaded to the kernel hangs my computer. Before it I created few new file systems: zfs create -V 10G tank/iscsi1 zfs create -V 10G tank/iscsi2 zfs create -V 10G tank/iscsi3 I shared them through iSCSI by /dev/tank/iscsiX path. And my computer started to hanging sometimes when I used tank/iscsiX by iSCSI, do not know why exactly. I switched off iSCSI and started to remove this file systems: zfs destroy tank/iscsi3 I'm also using zfs-auto-snapshot so I had snapshots and without -r key my command not destroying the FS. So I issued next command: zfs destroy tank/iscsi3 -r The tank/iscsi3 FS was clean and contain nothing - it was destroyed without an issue. But tank/iscsi2 and tank/iscsi1 contained a lot of information. I tried zfs destroy tank/iscsi2 -r After some time my computer hang out. I rebooted computer. It didn't boot very fast, HDDs starts working like a crazy making a lot of noise, after 15 minutes HDDs stopped go crazy and OS booted at last. All seems to be ok - tank/iscsi2 was destroyed. After file systems at the tank was accessible, zpool status showed no corruption. I issued new command: zfs destroy tank/iscsi1 -r Situation was repeated - after some time my computer hang out. But this time ZFS seams not to healed itself. After computer switched on it started to work: loading scripts and kernel modules, after zfs starting to work it hanging my computer. I need to recover else ZFS file systems which lying in the same zpool. Few month ago I backup OS to flash drive. Booting from backed-up OS and import have the same results - OS starts hanging. How to recover my data at ZFS tank?

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  • What is the best scripting language to embed in a C# desktop application.

    - by Ewan Makepeace
    We are writing a complex rich desktop application and need to offer flexibility in reporting formats so we thought we would just expose our object model to a scripting langauge. Time was when that meant VBA (which is still an option), but the managed code derivative VSTA (I think) seems to have withered on the vine. What is now the best choice for an embedded scripting language on Windows .NET?

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  • How advanced are author-recognition methods?

    - by Nick Rtz
    From a written text by an author if a computer program analyses the text, how much can a computer program tell today about the author of some (long enough to be statistically significant) texts? Can the computer program even tell with "certainty" whether a man or a woman wrote this text based solely on the contents of the text and not an investigation such as ip numbers etc? I'm interested to know if there are algorithms in use for instance to automatically know whether an author was male or female or similar characteristics of an author that a computer program can decide based on analyses of the written text by an author. It could be useful to know before you read a message what a computer analyses says about the author, do you agree? If I for instance get a longer message from my wife that she has had an accident in Nigeria and the computer program says that with 99 % probability the message was written by a male author in his sixties of non-caucasian origin or likewise, or by somebody who is not my wife, then the computer program could help me investigate why a certain message differs in characteristics. There can also be other uses for instance just detecting outliers in a geographically or demographically bounded larger data set. Scam detection is the obvious use I'm thinking of but there could also be other uses. Are there already such programs that analyse a written text to tell something about the author based on word choice, use of pronouns, unusual language usage, or likewise?

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  • nautilus selected item color

    - by shantanu
    See in the image, selected item "build" colour is black as background colour. How can i change the selected item colour gtk3 theme's nautilus.css script Which section colour need to modify: /* desktop mode */ .nautilus-desktop.nautilus-canvas-item { color: @bg_color; text-shadow: 1 1 alpha (#001B33, 0.8); } .nautilus-desktop.nautilus-canvas-item:active { background-image: none; background-color: alpha (@selected_bg_color, 0.84); border-radius: 4; color: @fg_color; } .nautilus-desktop.nautilus-canvas-item:selected { background-image: none; background-color: alpha (@bg_color, 0.84); border-radius: 4; color: @selected_fg_color; } .nautilus-desktop.nautilus-canvas-item:active, .nautilus-desktop.nautilus-canvas-item:prelight, .nautilus-desktop.nautilus-canvas-item:selected { text-shadow: none; } /* browser window */ NautilusTrashBar.info, NautilusXContentBar.info, NautilusSearchBar.info, NautilusQueryEditor.info { /* this background-color controls the symbolic icon in the entry */ background-color: mix (@fg_color, @base_color, 0.3); border-radius: 0; border-style: solid; border-width: 0 1 1 1; } NautilusSearchBar .entry { } .nautilus-cluebar-label { color: @fg_color; font: bold; } #nautilus-search-button *:active, #nautilus-search-button *:active:prelight { color: @dark_fg_color; } NautilusFloatingBar { background-color: @info_bg_color; border-radius: 3 3 0 0; border-style: solid; border-width: 1; border-color: darker (@info_bg_color); -unico-border-gradient: none; } NautilusFloatingBar .button { -GtkButton-image-spacing: 0; -GtkButton-inner-border: 0; } /* sidebar */ NautilusWindow .sidebar, NautilusWindow .sidebar .view { background-color: @bg_color; color: @fg_color; } NautilusWindow .sidebar .frame { } NautilusWindow > GtkTable > .pane-separator { background-color: @bg_color; border-color: @bg_color; border-width: 0 0 0 0; border-style: solid; }

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  • How do I best implement my Windows desktop and service C# applications automatic updates?

    - by Ivan
    My project contains WinForms, WPF, and Windows Service programs running on users' office desktop PCs. I want these applications to periodically check for new versions available at specific URL, automatically download new versions and replace themselves with new versions without attracting any user attention (keeping in mind that users may run Windows from XP to 7 and work using non-privileged account (which can be part of active directory)). Alternatively the whole update package has to be able to be distributed as an unattended-installed MSI package. Any recommendations on implementing this?

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  • How can I have a web link perform an action in a specific desktop application?

    - by John
    The specific situation is I have a .zip file that I want to open with a certain application. However, I don't want all ZIP files associated with that application. I think the answer is that instead of saying, "download this zip file, and open it with application X" I could have the browser basically go well my desktop application to go fetch it on its own (the same way directives like itunes: mailto: or aim: do things like launch the itunes store, add buddies, etc). Thoughts?

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  • ForceAutoLogon Ignored in windows 7 when setting up Autologin - Autologon

    - by user1082202
    I am attempting to setup automatic logon for a windows 7 kiosk computer via the registry. I have set the values under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon like this: AutoAdminLogon = 1 ForceAutoLogon = 1 DisableCAD = 1 I have filled out the username and password fields. I have also deleted all EULA related values (a prerequisite of ForceAutoLogon) I have done this procedure on 2 computers. On computer A: When rebooting, we logon automatically. When logging out from the start menu, we logon automatically immediately after logging out. On computer B: When rebooting, we logon automatically. When logging out from the start menu, we are presented with a logon menu where the user needs to click a user name & then enter a password. It seems like the value of ForceAutoLogon requires some other prerequisite that is met on computer A, but not on computer B. What do I need to make computer B act like computer A when clicking the log off button from the windows start menu?

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  • Can't boot Ubuntu 12.10 graphics problem

    - by Frantumn
    I can't boot since installing Ubuntu 12.10 When I try to run Ubuntu My computer never gets to the Ubuntu screen with the loading dots. I tried to run in recovery mode with safe graphics (failsafex) When I do this a message pops up saying "the system is running in low graphics mode", If I click okay I am asked what would I like to do and am given four options. I tried running low graphics for one session and then a message appears with a progress bar and says standby one minute while the display restarts. The progress bar never moves and if I click okay the whole process just restarts. I Don't know what to do from here I can't get into the OS. I'm not sure whether the problem is related to compatibility with my laptop monitor or my graphic card nvidia360m I had to install using a safe graphics mode. To learn about how I installed see this link. This link also has information on my computer hardware. Can't install Ubuntu since 10.10 ----UPDATE--- I was able to get into a desktop environment By installing Nvidia-current however it is messy. I have a screen and I am able to see my desktop however there is no unity bar and none of the keyboard controls work. I can right click and create a folder on the desktop and then I can see inside that folder in a traditional browser window. There is still no top menu or unity bar. When I boot normally I don't get into the desktop environment and I get this message in tty 'GPU lockup switching to software FBCON' Okay, I've played around with tips the pages from comments. I've been able to consistantly get into a safemode desktop environment using the xorg & nouveau drivers. I've tried switching between the 5 different options in the Additional Drivers tab in Software Sources. The nVidia (proprietary, tested) driver gets beyond the GPU lockup on a normal boot and actually gets into a Desktop. The issue is then that there is no Unity bar, or top screen menu bar and the resolution is very low. I've tried switching to the (prop, tested) driver and then reinstalling Unity and Ubuntu-Desktop but that didn't work either.

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  • Outlook 2010 sharing calendars and updating

    - by Stef
    We recently purchased Outlook 2010 for our law firm. We have several secretaries that need to view all calendars and input information in each of them. We do not have Exchange. I did a test by creating a calendar on one computer and sharing it with another computer. On the second computer I created a calendar and shared it with the first computer. Everything seems to work, except when I put events on computer 1 calendar and look at computer 1 calendar on computer 2. I can not see anything. Any advice would help. Thanks

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  • Is it reasonable to use OpenGL for desktop applications?

    - by JamesK89
    I've been writing a small desktop gadget-type application that displays scrolling text along the bottom of the screen (Similar to the old CNN news ticker), however the performance of GDI is just unsatisfactory (As high as 8-12% on a quad core and 20% on a single core) even after I've attempted to clean out bottlenecks. I was considering using OpenGL instead to render everything, but I don't know if that is a reasonable option to require users to have hardware acceleration for a tiny app like this. Does anybody have any input on this?

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  • Default Webcam Driver Issues

    - by Omegaclawe
    I'm having troubles getting my monitor-attached webcam (ASUS VK248H) to install on my new computer. On the old computer, it was a matter of not using a USB 3.0 port, but I can't get anything to work on the new one. I have tried all manner of uninstalling/reinstalling the driver and resetting the computer, as well as literally every USB port on the computer (14 in total). It's not that windows isn't recognizing the device; it most certainly is. However, comparing it to the old computer's driver details, on the new computer, it is not using the ksthunk.sys driver in addition to the usbvideo.sys driver, like on the old (working) computer. Naturally, I figured the way ahead was to simply get this other driver to work with the hardware, but haven't really found out a way to do that. Does anyone know of a way I can force it to use ksthunk.sys? It seems rather difficult to get it to install anything when Windows is feeling that everything is peachy.

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  • Frame rate on one of two machines running same code seems to be capped at 60 for no reason

    - by dennmat
    ISSUE I recently moved a project from my laptop to my desktop(machine info below). On my laptop the exact same code displays the fps(and ms/f) correctly. On my desktop it does not. What I mean by this is on the laptop it will display 300 fps(for example) where on my desktop it will show only up to 60. If I add 100 objects to the game on the laptop I'll see my frame rate drop accordingly; the same test on the desktop results in no change and the frames stay at 60. It takes a lot(~300) entities before I'll see a frame drop on the desktop, then it will descend. It seems as though its "theoretical" frames would be 400 or 500 but will never actually get to that and only do 60 until there's too much to handle at 60. This 60 frame cap is coming from no where. I'm not doing any frame limiting myself. It seems like something external is limiting my loop iterations on the desktop, but for the last couple days I've been scratching my head trying to figure out how to debug this. SETUPS Desktop: Visual Studio Express 2012 Windows 7 Ultimate 64-bit Laptop: Visual Studio Express 2010 Windows 7 Ultimate 64-bit The libraries(allegro, box2d) are the same versions on both setups. CODE Main Loop: while(!abort) { frameTime = al_get_time(); if (frameTime - lastTime >= 1.0) { lastFps = fps/(frameTime - lastTime); lastTime = frameTime; avgMspf = cumMspf/fps; cumMspf = 0.0; fps = 0; } /** DRAWING/UPDATE CODE **/ fps++; cumMspf += al_get_time() - frameTime; } Note: There is no blocking code in the loop at any point. Where I'm at My understanding of al_get_time() is that it can return different resolutions depending on the system. However the resolution is never worse than seconds, and the double is represented as [seconds].[finer-resolution] and seeing as I'm only checking for a whole second al_get_time() shouldn't be responsible. My project settings and compiler options are the same. And I promise its the same code on both machines. My googling really didn't help me much, and although technically it's not that big of a deal. I'd really like to figure this out or perhaps have it explained, whichever comes first. Even just an idea of how to go about figuring out possible causes, because I'm out of ideas. Any help at all is greatly appreciated.

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  • I'm graduating with a Computer Science degree but I don't feel like I know how to program.

    - by Wendy Peters
    I'm graduating with a Computer Science degree but I see websites like Stackoverflow and search engines like Google and don't know where I'd even begin to write something like that. During one summer I worked as a iPhone developer, but I felt like I was mostly gluing together libraries that other people had written with little understanding of what's happening underneath the hood. I'm trying to improve my knowledge by studying algorithms, but it is a long and painful process. I find algorithms difficult and at the rate I am working through my book it will a decade will have passed before I will finish. Given my current situation, I've spent a month looking for work but my skills (C, Python, Objective-C) are not so desirable in the local market, where C#, Java, and web development are much higher in demand. My GPA is ok (3.0) but it's not high enough to apply to the large companies or return for graduate studies and I don't have a good network of friends. Basically I'm graduating with a Computer Science degree but I don't feel like I know how to program. I thought that joining a company and programming full-time would give me a chance to develop my skills and learn from those more experienced than myself, but I'm struggling to find work and am starting to get really frustrated. I am going to cast my net wider and look beyond the city I've grown up in, but what have other people in similar situation tried to do?

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  • How to bring a form in the top of desktop?

    - by Kovu
    hi, I will let popup a form in C#.net 2.0 and it should be so long in front of the desktop until the user clicks the close button. How to do? I tried the code from here: http://dotnet-snippets.de/dns/fenster-wirklich-in-den-vordergrund-des-desktops-bringen-SID1005.aspx But it didn't work. My system is Win7.

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  • Preloading data without messing up association when data is loaded the 2nd time.

    - by denniss
    This is how my model looks like User belongs_to :computer Computer has_many :user Users are created when people register for an account on the web site but computers are pre-loaded data that I create in seeds.rb/some .rake file. All is fine and good when the app is first launched and people start registering and get associated with the right computer_id. However, suppose I want to add another computer to the list Computer.destroy_all Computer.create({:name => "Akane"}) Computer.create({:name => "Yoda"}) Computer.create({:name => "Mojito"}) #newly added running the rakefile the second time around will mess up the associations because computer_id in the User table refer to the old id in Computer table. Since I have run the script above, the id keeps incrementing without any regard to the association that user has to it. Question: Is there a better way for me to pre-load data without screwing up my association? I want to be able to add new Computer without having to destroy the user's table. Destroying the computer table is fine with me and rebuilding it again but the old association that the existing users have must stay intact.

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  • Access a samba mount from an ssh connection

    - by Android
    I have Ubuntu 9.10 on my computer. I have made a samba mount to a windows computer. This works fine when I am on the Ubuntu computer directly. When I go to another computer and connect to Ubuntu with SSH. I can connect fine and everything works but the folder my mount is in appears empty. I have only 1 account and it has permissions on the file etc. When on the computer directly it all works perfectly, it is only when connecting with SSH that isn't visible. What am I doing wrong here? I made the mount with smbmount //computer/folder mount -o username=username,password=password Even if I run this command on the SSH connection then it is the same, visible on the computer directly but not on SSH.

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  • launch the emulator, I only see the black window with the string 'ANDROID", and no more desktop and

    - by Jiawelin
    Dear experts, I download the Android code and "make sdk" to build out my own SDK, but the emulator from this SDK does not work well -- it only shows the black window with the "ANDROID" string, but I can't see any desktop picture or any applications. what's wrong here? anyone could please provide me a hint? Thanks a lot. I use the command: $./emulator @jiawelin -debug all and the last output message is: emulator: android_hw_control_init: hw-control qemud handler initialized

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  • Ruby Dir.glob works on laptop not on desktop?

    - by Nick Faraday
    I have a ruby shell script that works perfectly on my laptop, but Dir.glob doesn't seem to work when I try and run it on my desktop. Here is the code: sFileTemplate = File.join("**", sResolutions, "**", "*."+sType) sFiles = Dir.glob(sFileTemplate) Both machines run OSX 10.5 and are running ruby -v 1.9.1. Am I calling glob wrong? Thanks

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