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• Will Apple abandon OpenCL?

  - by John

  I am developing OpenCL applications, amongst others for MacOS. The new Macbook pro 13 inch comes with an Intel HD Graphics 3000 card so it seams reasonable to assume all their mainstream computers like Macbook and Mac mini will also come out with this Intel graphics card soon. OpenCL is not available for Intel graphics cards. Intel having a terrible reputation in developing graphics drivers and Apple knowing this makes me wonder Apple is abandoning OpenCL already again. Especially considering OpenCL should run anywhere, not only on high end systems. Developing applications only for the high end Macs with dedicated graphics hardware or for previous generation hardware with the Geforce 320M would not be a feasible option for me. Does anybody have any thoughts on this?

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• How do I configure VMware View location-based printing to use Active Directory Groups?

  - by Jason Pearce

  I am attempting to configure VMware View 4.5's Location-Based Printing, which leverages an included OEM version of ThinPrint, to assign printers to active directory groups. The location-based printing feature maps printers that are physically near client systems to VMware View desktops. I am using the Active Directory group policy setting AutoConnect Location-based Printing for VMware View, which is located in the Microsoft Group Policy Object Editor in the Software Settings folder under Computer Configuration. The AutoConnect Location-based Printing for VMware View appearst to be just a name translation table. It permits me to assign a specific printer or printers to an IP Range, Client Name, Mac Address, User, or User Group. I'm attempting to assign printers to active directory user groups. I have created a new active directory group for each printer that I intend to use in VMware View desktop pools. I will then assign active directory users to the active directory groups that represent each network printer. Example: doej is a member of the PTR-FLOOR2-NORTH-ROOM255 active directory group. Using AutoConnect, I assigned the group to receive a network printer by adding PTR-FLOOR2-NORTH-ROOM255 in the User/Group column. Problem: When doej logs in to his VDI session, the printer is not present. However, if I use a wildcard "*" in the User/Group column instead of the specific PTR-FLOOR2-NORTH-ROOM255 active directory group, the printer is present and functions as designed. Alternatives: I have tried assigning printers to active directory groups within AutoConnect in the following ways, all unsuccesfull: PTR-FLOOR2-NORTH-ROOM255 domainexample\PTR-FLOOR2-NORTH-ROOM255 domainexample.local\PTR-FLOOR2-NORTH-ROOM255 Confirmation: The information used to map the printer to the VMware View desktop is stored in a registry entry on the View desktop in HKEY_LOCAL_MACHINE\SOFTWARE\Policies\thinprint\tpautoconnect. For each of these examples, I have reviewed the registry entry and can confirm that the desktop is receiving the information from the AutoConnect translation table. Summary: Can anyone provide an example of how to configure VMware View 4.5's Location-Based Printing so that I may assign network printers to active directory groups via the included AutoConnect tool? I would welcome a clear example of a working configuration. Thank you.

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• How much configurability to give to users regarding concurrency?

  - by rwong

  This question is a narrowing-down of these related questions: How much effort should we spend to programming for multiple cores? Concurrency: How do you approach the design and debug the implementation? Given that each user's computers may have different performance characteristics with respect to calculations, memory, disk I/O bandwidth and network I/O bandwidth, and that it is difficult to implement an automated self-tuning system in your software, how much configurability should we give to the end-users so that they can find ways (by trial-and-error?) to improve our software's efficiency? If we give users the ability to change these settings, how do we give visual feedback to users so they can measure the performance changes?

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• HTG Explains: How Antivirus Software Works

  - by Chris Hoffman

  Antivirus programs are powerful pieces of software that are essential on Windows computers. If you’ve ever wondered how antivirus programs detect viruses, what they’re doing on your computer, and whether you need to perform regular system scans yourself, read on. An antivirus program is an essential part of a multi-layered security strategy – even if you’re a smart computer user, the constant stream of vulnerabilities for browsers, plug-ins, and the Windows operating system itself make antivirus protection important. 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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• Kile missing "Settings" dialog after update to kubuntu 12.10

  - by William

  After update to Kubuntu 12.10, I can no longer access configuration options in Kile from Settings-Configure kile (or whatever the menu entry was for configuration). In fact, "Settings" menu has only five entries: "Define current document as master document", "System check", "Show side bar", "Show message bar", and "Toolbars shown." I did a fresh install of Kubuntu 12.10 on one of my other computers, and same problem. I even tried adding the (unsupported) ppa:kile/stable, but the problem persists. Any ideas? I need to access settings to set PDF Latex to use "modern" compilation mode, so that I can use synctex.

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• What is the best tool to sync browser passwords and bookmarks?

  - by jgbelacqua

  Sadly, everything I've tried so far has been painful to manage between two computers, (even between different browsers on the same computer). So, right now I have different aggregations of bookmarks passwords in xmarks, delicious, google bookmarks, firefox sync, text files, and in figaro password manager (fpm2). I've also tried to use bindwood in the past. What I would like to do is merge all bookmarks and passwords into some solution that actually works either with tools available under Ubuntu, or with a browser-based tool (addon/plugin/extension) which works between between google-chrome/chromium, and firefox. It would be ideal if there was an ability to send and store passwords encrypted (if not on my own server). Whatever the method, I need the ability to have import from existing sources. (It doesn't have to be pretty, just repeatable.) It's possible that some things I've ruled out are now workable (e.g., xmarks broke for me at one point because I hit their bookmark limit for the server/account, and bindwood, firefox sync were firefox only).

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• How can a Cisco Aironet wireless card connect to a WPA encrypted network?

  - by Aibara Iduas

  I have a Thinkpad T40 running Ubuntu 10.10. I want to connect to wireless networks with WPA encryption; they appear in the network list, but are grayed out. The card does support WPA, since it works in Windows. In 10.10 the wireless works just fine with unprotected and WEP networks, but cannot connect to any WPA networks. The card is a Cisco Aironet Wireless 802.11b. I've been reading a lot of forum posts trying to find a solution, but either encounter threads where no solution was found or answers longer apply (most date from 2007, since this isn't the newest of computers). Here is the output of sudo lshw -c network: *-network:1 DISABLED description: Wireless Interface product: Cisco Aironet Wireless 802.11b vendor: AIRONET Wireless Communications physical id: 2 bus info: pci@000:02:02.0 logical name: eth1 version: 00 serial: 00:02:8a:78:6a:44 width: 32 bits clock: 33MHz capabilities: pm vpd bus_master cap_list rom ethernet physical wireless logical configuration: broadcast=yes driver=airo latency=64 maxlatency=4 mingnt=4 multicast=yes wireless=IEEE 802.11-DS Thanks, any help would be greatly appreciated!

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• "Operating system not found" after upgrading to 13.10

  - by Hongbo Zhu

  I own a Thinkpad X121e and I upgraded its Ubuntu from 13.04 64bit to 13.10 64bit using the Update Manager. When the upgrade process suggested to restart the system, I restarted the computer and now it says "Operating system not found" after a very brief splash screen. The splash screen says something like (too brief to see everything): Intel UNDI, PXE-2.0 ... For Atheros ethernet Controller ... Check cable connection! PXE-MOF: Exiting INTEL PXE ROM I prepared a startup USB disk using Ubuntu 13.10. I tried the startup USB and it works very well on other computers. So I changed the booting order of X121e and tried all three USB slots, all said "Operating System not found" without any splash screen. I also tried using startup USB with 12.04 LTS. Same results. I do not really want to reinstall the system now. Any hints on how to proceed?

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• how to add programs to ubuntu without internet access

  - by captainandcoke

  I don't have internet access at my home and it takes me about a half hour to ride my bike to the library. I have downloaded .deb files to try to install at my home computer but everyone I have downloaded says it can't install because it depends on package X. The next day I will download package X and it will require package Y. Is there anyway to find out what ALL the sub-dependencies are for deb files? I have tried to boot from USB or External Hard drive on the library computers but the security settings prevent this. Also, I do not know anyone with a Linux computer.

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• DesktopCouch does not sync

  - by burli

  I have here two computers, both installed with Ubuntu 10.10. The Laptop uses the Netbook Edition. Both are connected, file sync and Tomboy Notes are working. My Desktop syncs databases with Ubuntu One, my Laptop does not. If I delete for example the contacts Database on my Desktop, the database is back a view seconds later. If I delete the same database on my laptop, nothing happens. (I'm using Futon) If I kill beam, delete the config and try to restart with the dbus-send I got an error Error org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. How can I fix that?

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• Will learning programming be as fundamental as learning reading/writing to the kids of the future?

  - by pythagras

  It seems I encounter more and more economists, scientists, and miscellaneous other professionals that have jobs that involve programming on some level. More and more, the jobs that my peers have in many many technical professions involve at least some simple scripting if not something more involved. It seems it used to be that "software engineer" was a distinct profession, now its becoming just another skill like writing -- something that any serious technical professional should be able to use for their job. I see a future where programming is essential to getting any kind of technical/mathematical job. Extrapolating on my anecdotal view of my colleagues... Will the kids of the future become literate in programming in the same way they become readers/writers? Will it become so fundamental to our economy and society that it will be taught at an early age? Will interacting with computers be as important as interacting with other people?

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• Ubuntu via Wubi refuses to show up in boot menu

  - by Redandwhite

  I'm in this strange situation: I have 3 partitions, one for Vista (C), one for Windows 7 (D), and one 10GB partition (E). At least that's how my original OEM Vista partition sees them. The primary OS that I boot into everyday is Windows 7. The situation is that for some reason it sees the Windows 7 partition (its own) as drive C, the 10GB one as (D) and the Vista one as (E). I've successfully used the Wubi installation before on Vista, but now it simply doesn't work. Ubuntu just does not show up in the boot menu, no matter what I try to do. I'm running out of ideas. I heard it doesn't really play well with Windows 7 either. I set it to Vista compatibility mode and that didn't work, I also tried installing it from Vista itself and that didn't work either for some reason. Any ideas what I should try? If anyone is about to suggest EasyBCD, please underline the command-line instructions I'm gonna need to follow. Thanks.

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• Can't ping external websites

  - by Frantumn

  I can't ping google.com with my virtual ubuntu 12.04 server. I have set up a proxy URL in my /etc/apt/apt.conf file and it says Aquire::http::proxy http://urlname.com:9999; Now, I don't know a lot about how the proxy works, but I do know when we use it on windows VMachines it's a pac script that we place in internet explorer LAN settings and it automatically detects the script and gives internet access. I tried including the 9999/proxy.pac in the apt.conf URL and it didn't seem to work any better. Would ubuntu know how to handle a proxy.pac assuming it was created for windows? Should my URL include the .pac or just end after the port numbers? I've tried both without sucess, but I would like to know. A quick test to ping a fellow co-workers' PC was sucessful. So I can see network computers, but not google. or other internet sources.

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• Why won't Remmina connect to Windows 7 Remote Desktop?

  - by rfc1484

  I'm using Ubuntu and I'm trying to connect to another machine in a different network using remote desktop. In Windows7 I have made the following in order to activate remote desktop: I've gone to computer - properties - remote settings I've selected the option: "Allow connections from computers running any version of Remote Desktop I've opened "Windows Firewall with Advanced Security" In inbound rules I've enabled the rules for remote desktop (public and domain) I have also installed Remmina in the Ubuntu machine. For configuring it I did the following steps: Selected the RDP protocol In the server input I have written the Windows machine public IP. In username / password I have typed my login credentials (the same as my Windows admin account) But when I try to connect I get this error message: "Unable to connect to RDP server 89.130.251.160" If I ping my Windows7 machine, I have a correct response. Any suggestions?

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• My self-generated CA is nearing it's end-of-life; what are the best practices for CA-rollover?

  - by Alphager

  Some buddies and me banded together to rent a small server to use for email, web-hosting and jabber. Early on we decided to generate our own Certificate Authority(CA) and sign all our certificates with that CA. It worked great! However, the original CA-cert is nearing it's end-of-life (it expires in five months). Obviously, we will have to generate a new cert and install it on all our computers. Are there any best practices we should follow? We have to re-generate all certs and sign them with the new CA, right?

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• File system layout for multiple build targets

  - by Yttrill

  I am seeking some ideas for how to build and install software with some parameters. These including target OS, target platform CPU details, debugging variant, etc. Some parts of the install are shared, such as documentation and many platform independent files, others are not, such as 64 and 32 bit libraries when these are separated and not together in a multi-arch library. On big networked platforms one often has multiple computers sharing some large server space, so there is actually cause to have even Windows and Unix binaries on the same disk. My product has already fixed an install philosophy of $INSTALL_ROOT/genericname/version/ so that multiple versions can coexist. The question is: how to manage the layout of all the other stuff?

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• How to configure ubuntu for lightweight low-memory usage?

  - by augustin

  I just upgraded an old, secondary computer to the latest Kubuntu (10.10). It seems the effort was a bit too much for the hardware and one 512MB memory module died. I tried to take it away, clean the connectors, put it back several times, but to no avail. Until such a time I can find a second hand DDR memory module, I am left with a meagre 256MB RAM, which is below the official requirements (384MB) to run Kubuntu/KDE. Indeed: the computer constantly swaps the memory, making everything painfully slow. Since Kubuntu is already installed and I use it on all my computers (and I want to keep KDE for when I really need it), how can I configure ubuntu to squeeze out every bit of unnecessary memory usage? This is a secondary computer but still very useful. We use it mostly for web browsing. A "lightweight" tag is missing.

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• Cannot boot from Ubuntu USB

  - by Safi

  I create a ubuntu 10.10 bootable USB via the method that is described on the download page of ubuntu. I made that from windows and also from ubuntu 10.04 (I have dual boot). When I boot from the USB made, the menu shows and when I run it, it gives a beep and nothing else. It never boots. USB creation from both methods result the same. I downloaded ubuntu via the torrent provided from Ubuntu. Any help will be very appreciated. I want to make my USB just like a Live CD so that I can run it on some other computers also.

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• Formatting Google Search Result [closed]

  - by user5775

  Possible Duplicate: What are the most important things I need to do to encourage Google Sitelinks? Hello, I am new to search engine optimization. I am working on customizing how my results appear in Google as best as possible. I have learned about the meta tags to customize the text summary. However, I have some hierarchical parts to my website. When a result appears related to the "tip-of-the-iceberg", I would like to show links related to the "child" pages. For instance, if you Google "Walmart" you will see the following links listed with the result: Electronics TV & Video Departments Furniture Toys Girls Living Room Computers Is there any way that I can help Google determine which links to show and the text to display for these child links on my site? Or is this something that Google automatically generates? thanks!

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• EPM 11.1.2 - Receive Anonymous Level Security token message in IE8 when trying to access Shared Services or Workspace URL

  - by Ahmed A

  If you get "Receive Anonymous Level Security token" message in IE8 when trying to access Shared Services or Workspace URL.Workaround:a. Go to Start > Run and enter dcomcnfgb. Expand Component Services, Expand Computers and right click on My Computer and select Propertiesc. Click on the Default Properties tab.  Change the Default Authentication Level to Connect.  Click apply and then OK.d. Launch the IE browser again and you will be able to access the URL.

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• Is it OK to push my code to GitHub while it is still in early development?

  - by marco-fiset

  I have some projects that are in a very early development state. They are nowhere nearing completion but I do host them (as public repos) on GitHub because: I have multiple computers and I want access to my code everywhere I want a backup for my code I want it to be easy if someone wants to collaborate in some way I use GitHub Issues as a poor man's project management software Is it OK to publish a project on GitHub even when it is very early in the development? I am a bit concerned about someone to come by and say OMG this is total BS, this code is so bad! while looking at unpolished/still in development/not tested code. What are your practices when you start new public projects? Do you wait until you have something substantial to show or you create a bare repo directly on GitHub and start from there? I used GitHub throughout this post but this applies to every code hosting service out there.

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• Trying to learn ASP.net

  - by sipl

  Hi There, I have a background in computers and had done programming some seven years ago. Switched to becoming a technical writer (oops!). And now think I should jump ship again, back to being a programmer. Of course the natural course of action where I can spend say two whole years learning to code, might not be available any more. I am keen on ASP.net as its the language that most products at my company are written in. I am sure this has been asked before, but here I go... where do I begin? Would really appreciate some practical advise. Thanks, SA

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• Why a write-enable ring?

  - by SpashHit

  Here's an "interview question" that while ostensibly about hardware really does inform a software design principal as well. Computers used to (still do I guess, somewhere) use magnetic tape reels to store data. There was a plastic accessory you could attach to a tape reel called a "write-enable ring". If the tape had such a ring, the tape drive allowed writing to the tape... if not, it only allowed read access. Why was the choice to design the system in this way? Why not have a "write protect ring" instead, with the opposite effect?

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• Is it safe to set FPS rate to a constant?

  - by Ozan

  I learned from game class that in update function, every movements must be time dependent for the sake of linearity in movement. We made a simple game. Every move like going left, right or jump is written time dependent. But, in some other computers, our game is worked very differently. For example, our character jumps higher than it should be. I guess this is because each computer has different FPS rate according to its specification. My question is that what should we do to make this game work in same way in every computer? Setting FPS rate to a constant is a solution?

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• dual boot, Sony Viao, all in one portable desktop, not working and crashes

  - by user287513

  I am a fan of Ubuntu but ever since I bought my new computers, both Sony Vaio, I can't get them running together with windows 8.1. When I try wubi, it doesn't show the install box, but some other information box. If I remove wubi from the iso and run it as admin on my desktop, it runs and installs but after rebooting, grub never comes up and it gives the error screen.. On my laptop, I had to make a usb install and partition everything myself and that worked for my laptop, for a little while. Windows boot loader would override and grub wouldn't come up no more, unless I try to boot from usb, with no usb in, and after it reboots because there is no usb, now grub opens, but doesn't cont. That is what happens with my Sony 2 in 1 laptop. My all in one portable just wont boot it period. Bios is the problem but I disabled everything that was necessary. Help

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