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  • Ubuntu 12.04 cannot start

    - by user57215
    I just installed Ubuntu 12.04 64bit, and I cannot start it. I tried twice. The first time, I used a CD I burned. (The CD works for my another computer, so it is OK.) After wubi did something in Windows, it rebooted. Then the screen was stuck where there is an ubuntu logo at the center and 5 dots below. I waited for more than half hour, it was still there and nothing happened. The second time, I installed 11.10, then upgrade to 12.04 in a the newly install 11.10. BTW, the 11.10 did start. After upgrading, I rebooted the computer, it was stuck at the same place. Any one can help me on this? The computer is AMD Phenom II X4 965 + ATI RADEON HD4870. Thanks a lot!

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  • Cannot access my own web page

    - by enflam3
    I am developing, learning and experimenting with php,html,javascript,flash and so on. Having web hosting and all of the cpanel, phpmyadmin and other utilities. One day, while updating information, connection between my computer and website just went down. I found out that it is only from this computer, where I cannot access anything. I don't know what is the reason I cannot access website, however this is what I have checked so far: Everything else opens normally, having problem only with my page. Cannot access FTP,cpanel or any kind of information related to the domain and hosting ipconfigs detects IP, but shows request timed out (so its not browser related) Turned off Firewall,AV, Rebooted computer Cleared caches,temp,cookies,histry with CCleaner Checked connectivity with both (wired,wireless) networks ISP has dynamic IP that has been changed about 3 times since issue Checked host file I am out of ideas and understanding what could cause this kind of issue, however couple minutes ago, found out that everything works with proxy server (when adding IP and port to the browsers) Can someone point out what should I check or try to get rid of this problem?

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  • No sound/audio after resuming from sleep

    - by hansvonaachen
    I've made a fresh UEFI install of Ubuntu 13.10 (64 bit) on a Lenovo Ideapad Z510 laptop with Intel i5 4200M processor. Ubuntu is the only OS installed on the computer, secure boot disabled. Everythings works fine (backlight issue fixed after editing rc.local file), the only minor trouble I have is resuming the laptop from "sleep" mode. If I close the lid and then wake the laptop opening it again, there is no audio/sound. I need to restart the computer (not even logging out helps). If I suspend the computer in a graphical way (not closing the lid): gearwheel in top right of the screen -- suspend and wake it up/turning on, audio works with no issues. Ideas how to fix this? Thanks!

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  • Can't boot ubuntu 12.04, stuck in busybox. Can't view files from ubuntu trial disc, or windows partition

    - by Maura
    So, I'm slightly computer literate, and find myself frustrated and overwhelmed. My computer is a acer laptop, extensa 5620-6572. I have a dual boot with windows vista and ubuntu 12.04. The ubuntu 12.04 I got was from an upgrade, not a disc. I tried to load ubuntu 12.04, and it gets stuck in the "busybox", and I don't know how to proceed from there. I went to my windows partition and downloaded Ex2 from http://sourceforge.net/projects/ext2fsd/ and thought I'd try access my files and save them to a external HD. Then when I restarted my computer and went to windows, it always freezes after it loads the OS. So then, I downloaded and burned a ubuntu 12.04 boot disk, and the disk works fine. But I still can't figure out how to view files on my harddrive.

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  • Unable to start ubuntu

    - by Ray
    Need your help here: I'm unable to start Wbuntu in my laptop. I'm sharing ubuntu with Windows 7 in my laptop, and after I install Ubuntu when I boot my laptop and choose ubuntu as my operating system the following error appears: Windows failed to start. A recent hardware or software change might be the cause. To fix the problem: Insert your windows installation disc and restart your computer Choose your language settings, and then click "Next." Click "Repair your computer." If you do not have this disc, contact your system administrator or computer manufacturer for assistance. File: \ubuntu\winboot\wubildr.mbr Status: 0xc0000098 Info: The selected entry could not be loaded because the application is missing or corrupt. Any ideas?

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  • Please help me here

    - by ubuntulover
    I hate f**g problems. I installed ubuntu just some minutes ago. It said Installation finished, you need to restart your computer. Okay when installation finished then what's there any need of a cd in the drive. So I removed it and the screen gone blank and hanged. Mouse pointer now not moving. I put cd again and forcefully restarted the computer then it came up with installation option again. I hated this. Then again I removed the cd from drive and forcefully restarted computer and now I'm on my ubuntu desktop. I want your comments. Is everything well? All seems to be normal now but I still want to talk with you. :/

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  • How Do I get rid of this software? [closed]

    - by Marcus
    Some jerk who refurbished my computer intalled this crappy software instead of reinstalling my windows. I absolutely despise this crap. I cant do anything I could do on my PC before. I cant even save files to my computer correctly. I work from mozilla, i have a blackberry whose update manager cannot download on this crappy mainframe. Just tell me how to get windows back without having to buy it or buy a whole new computer. Or maybe just step your crappy ass game up

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  • Problem installing Ubuntu 13.10 alongside Windows 8

    - by kustrle
    What I have: Sony Vaio laptop (SVE1512E6EW) with preinstalled Windows 8. I disabled Secure Boot some time ago in BIOS. I already had Ubuntu (previous version) installed on it, but removed it some time ago. After that, the default Windows boot menu is showing up everytime I boot up computer, and the only entry is Windows 8. What I did: Burned Ubuntu 13.10 DVD Restarted computer and booted from it Chosen Install Ubuntu (not Try Ubuntu) Created new ext4 partition from free space Installed Ubuntu on it What happened: After the installation I restarted computer. Windows default boot menu showed up (just as before) and the only entry was still Windows 8. If you have any additional questions I will try to answer them as fast as possible.

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  • Can't boot after disk error 12.10

    - by user1189907
    Lately, I've been having Ubuntu crashing randomly.. it goes into read only mode, but once I restart it's working again. Today it happened again and I had to manually shut the computer down. Now I'm not able to boot anymore. I get the following when turning the computer on: error: unknown filesystem And I'm left at "grub rescue". I booted from the Live CD and installed "boot-repair". When I run it it says "no os has been found on this computer", it gives me no option to carry out any fixes. Boot Repair generated the following output which shows some errors: http://paste.ubuntu.com/1348224/ Any idea on how to fix this?

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  • jQuery "Autocomplete" plugin is messing up the order of my data

    - by Max Williams
    I'm using Jorn Zaefferer's Autocomplete plugin on a couple of different pages. In both instances, the order of displayed strings is a little bit messed up. Example 1: array of strings: basically they are in alphabetical order except for General Knowledge which has been pushed to the top: General Knowledge,Art and Design,Business Studies,Citizenship,Design and Technology,English,Geography,History,ICT,Mathematics,MFL French,MFL German,MFL Spanish,Music,Physical Education,PSHE,Religious Education,Science,Something Else Displayed strings: General Knowledge,Geography,Art and Design,Business Studies,Citizenship,Design and Technology,English,History,ICT,Mathematics,MFL French,MFL German,MFL Spanish,Music,Physical Education,PSHE,Religious Education,Science,Something Else Note that Geography has been pushed to be the second item, after General Knowledge. The rest are all fine. Example 2: array of strings: as above but with Cross-curricular instead of General Knowledge. Cross-curricular,Art and Design,Business Studies,Citizenship,Design and Technology,English,Geography,History,ICT,Mathematics,MFL French,MFL German,MFL Spanish,Music,Physical Education,PSHE,Religious Education,Science,Something Else Displayed strings: Cross-curricular,Citizenship,Art and Design,Business Studies,Design and Technology,English,Geography,History,ICT,Mathematics,MFL French,MFL German,MFL Spanish,Music,Physical Education,PSHE,Religious Education,Science,Something Else Here, Citizenship has been pushed to the number 2 position. I've experimented a little, and it seems like there's a bug saying "put things that start with the same letter as the first item after the first item and leave the rest alone". Kind of mystifying. I've tried a bit of debugging by triggering alerts inside the autocomplete plugin code but everywhere i can see, it's using the correct order. it seems to be just when its rendered out that it goes wrong. Any ideas anyone? max EDIT - reply to Clint Thanks for pointing me at the relevant bit of code btw. To make diagnosis simpler i changed the array of values to ["carrot", "apple", "cherry"], which autocomplete re-orders to ["carrot", "cherry", "apple"]. Here's the array that it generates for stMatchSets: stMatchSets = ({'':[#1={value:"carrot", data:["carrot"], result:"carrot"}, #3={value:"apple", data:["apple"], result:"apple"}, #2={value:"cherry", data:["cherry"], result:"cherry"}], c:[#1#, #2#], a:[#3#]}) So, it's collecting the first letters together into a map, which makes sense as a first-pass matching strategy. What i'd like it to do though, is to use the given array of values, rather than the map, when it comes to populating the displayed list. I can't quite get my head around what's going on with the cache inside the guts of the code (i'm not very experienced with javascript).

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  • Open Technology: Nanorobots Answer to US Navy

    - by adrianocavalcanti
    Hi Everybody, Just wondering if some has some suggestion about open technology licensing. I have been working on nanotechnology -- here some info: * Nanorobot Technology: What to Expect from Science - A Personal Letter in Answer to United States Navy http://www.linuxquestions.org/questions/general-10/nanorobot-technology-what-to-expect-from-science-814060 and started an initiative towards open nanotechnology since last october. All comments and suggestions are highly appreciated.

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  • How do we, as a community, help encourage programming in public schools? (Or state Schools for the U

    - by NoMoreZealots
    PRIMARY MOTIVATION My office gets involved with the "First Robotics" competitions and one thing that lingers year to year is the students typically have no preparation for doing even simple programming as part of the public schools system. While the science classes provide some basic grasp of mechanical and electrical concepts, by in large computer programming gets no coverage from the curriculum. (This my be different in other areas of the country/world.) What makes it worse is there is only a short period of time you have to prepare the student's and help them design the robot. Talking to some professors from local colleges, it's a problem because you can't assume even the most basic understanding for freshman CS majors. Languages like Python, Lua and BASIC are simple enough for at least high school level students, if not younger. SCOPE So how do you get public schools to support a programming, at least to the level of "Try it in BASIC" examples that used to be at the end of a chapter in my Algebra book? At least enough to prepare them for event's such as the FIRST Robotic competitions. Which the primary objectives are to teach problem solving and team work, and to possible foster an interest in Math, Science and Engineering in general. (Not force feed to them, as some people her seem to be implying.) Edit: Why teach kids: (Since 2000 CS enrollment in US colleges has decreased by 70% while college enrollment has increased, this is a PROBLEM.) Saying there is no value in teaching someone programming in Jr./High school because they might think "they know programming." Is like saying there's no value in teaching High school science and physics, because they might decide they "know physics." Leading to abuse like: "I passed a high school physics class, I'm going to develop a Unified Quantum Gravitational Theory." Better Prepared students are better students. Instead it would allows college programs to raise the bar on the entry level courses, allowing students to be weeded out based on their understanding of more advanced material. Plus people who did poorly in that in topic in High school aren't as likely to say "I think there's money in computer's so I'll computer science." Plus if people take it in high school and decide THEN that it's not for them, it's better than them wasting their money to PAY a college to figure that out. The result is that people who take the degree are more likely to succeed and be there for the RIGHT reasons. (i.e. It's what they REALLY want to do. And that's REALLY the key to being good at anything.) Programming is like anything else, the more practice and genuine interest you have the better you get. If you start them later, they get less practice. The earlier give them the opportunity to start, the more practice they will get. All other things equal, the more practice the better the programmer.

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  • Java - problems with polymorphism

    - by cc0
    I have a book class, then a novel- and a science book class that extend the book class. I made an ArrayList using the book class, then inserted the novels and the science books into that. Now I'm trying to iterate through the ArrayList to count how many novels are there. How can I tell? Would love to see some examples of this! I've been at it for a while.

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  • What is "Disable class based route addition" good for?

    - by id.roppert.dejroppert
    In the advanced TCP/IP settings of a VPN connection, i found a checkbox labeled with "Disable class based route addition". The checkbox is only enabled as long as "Use default gateway on remote network" is switched off. What is "Disable class based route addition" good for? Detailed instructions to find the settings: Open Properties of VPN connection Go to Networking tab Open Properties of "Internet Protocol Version 4 (TCP/IPv4)" (and/or TCP/IPv6) Click "Advanced..." Button Change to "IP Settings" tab Here you can find the checkboxes mentioned above

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  • Fields and Properties in Microsoft Word 2007

    - by O_O
    I have added some advanced properties into my Microsoft Word 2007 document. These were created by doing the following: Click the Office button - Prepare - Properties. Under the Document Properties drop-down menu, select Advanced Properties. In the Custom tab, add properties as needed. My question is how do you insert these custom properties into the Word document so that they are in text form and gets updated when you update the properties in that one spot? Thank you!

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  • vmware esx licensing limit on vCPUs per VM

    - by maruti
    when a server has more than 8 cores per CPU (total 16 logical procs) and ESX standard license is applied, what does it mean for VM performance? Since each VM on host is allowed only 4 vCPUs max VMWare ESX/ESXi limits the no of vCPUs per guest VM depending on the license: standard Lic = 4 vCPU Advanced Lic = 4 since i dont know exact number is there need to upgrade to Advanced version for any perf benefits if none of VMs have workloads that need more than 4 vCPUs?

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  • Active Directory: Viewing "Attribute Editor" after finding an account via ADUC's "Find" option

    - by Beaming Mel-Bin
    When I activate the Advanced features (View - Advanced Features) and open a user's properties by navigating to their OU and right clicking the user object, I see the Attribute Editor tab. However, if I search for a user (right click the domain - Find - search for the user), and double click on the user, I do not see the tab. I cannot normally navigate to users because some OUs have too many users. Can someone suggest an alternative that allows me to view the Attribute Editor tab?

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  • Basic question on Internet Connection Sharing

    - by Apps
    I've basic question on Internet Connection Sharing in Windows XP. I've a Internet Connection through LAN and I've created an Ad-hoc network that is supposed to share the internet connection. My question is on which connection should I enable "Internet Connection Sharing"? Is it on LAN Connection'Settings > Advanced of Ad-hoc network Connections' Settings > Advanced ? Can you please help me?

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  • Poor performance of single processor 32bit Windows XP xompared SMP in VBA+Excel

    - by Adam Ryczkowski
    Welcome! On many computers I experienced poor performance of 32 bit guests running on 64 bit Linux host (I used only the Debian family). At last I managed to collect benchmark data. I made the benchmark by running custom VBA macro, (which we use in our company) that generates 284 pages long Word document full of Excel Pie charts, tables and comments. The macro is run as a single task (excluding the standard services) on a set of identically configured Windows XP 32-bit systems. I measured the time (in sec.) needed to perform the test. The computer (i.e. my notebook Asus P53E) supports both VT-d extensions and native Windows XP. It has 2-core processor, each core is hyperthreaded, so in total we have 4 mostly independent execution units. I use the latest VirtualBox 4.2 and VMWare Workstation 9.0 for Linux, installed together on the same host (running Mint 13 Maya) but never run simultaneously. The results (in column Time) are no less accurate than ± 10% Here are the results (sorry for the format, but I couldn't find out a better solution for tables in SO): +---------------+-------------+------------------------------------------------------+---------+------------+----------------+------+ | Host software | # processor | Windows kernel | IO APIC | VT-x/AMD-V | 2D Video Accel | Time | +---------------+-------------+------------------------------------------------------+---------+------------+----------------+------+ | VirtualBox | 1 | Advanced Configuration and Power Interface (ACPI) PC | 0 | 1 | 0 | 1139 | | VirtualBox | 1 | Advanced Configuration and Power Interface (ACPI) PC | 0 | 1 | 1 | 1050 | | VirtualBox | 1 | Advanced Configuration and Power Interface (ACPI) PC | 0 | 0 | 1 | 1644 | | VirtualBox | 4 | ACPI Multiprocessor PC | 1 | 1 | 1 | 6809 | | VMWare | 1 | ACPI Uniprocessor PC | | 1 | 1 | 1175 | | VMWare | 4 | ACPI Multiprocessor PC | | 1 | 1 | 3412 | | Native | 4 | ACPI Multiprocessor PC | | | | 1693 | | Native | 1 | Advanced Configuration and Power Interface (ACPI) PC | | | | 1170 | +---------------+-------------+------------------------------------------------------+---------+------------+----------------+------+ Here are the striking conclusions: Although I've read in the VirtualBox fora about abysmal performance with 32-bit guest on 64-bit host, VMWare also has problems compared to native run, still being twice faster(!) than VBox. Although VBA is inherently single-threaded, the Excel calculations, which take much more than a half of total computation time, supposedly aren't. So one would expect some speed gain when running on 2+ cores ("+" for hyperthreading). What we see is a speed loss. And quite big one too. For the VirtualBox the VT-d extension isn't a big deal. Can anyone shed some light on why the singlethreaded Windows kernel is so much faster than the SMP one?

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  • How does Bittorrent work?

    - by mumtaz
    I want to learn more about the bittorrent way of file sharing. I am a technically advanced user (programmer), so technically advanced material is no problem, but it should be concise and to the point. I need a good resource book/web which explains the overall bittorrent architecture. I am not interested in details, just the overall architecture and the terminology like seeds, peers, etc. Any suggestions?

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  • SQL server in VMware

    - by UndertheFold
    Please provide your tips and best practices for virtualizing SQL Server in VMWare ESX I am interested in advanced configurations and settings. Please provide reasoning behind your recommendations Edit: Just to clarify, I already have over 70 Virtual SQL servers in separate clusters using an ISCSI equallogic San - What I am really looking for are those advanced configurations like: How you configured your disks / RDM's Do you make use of settings like Mem.ShareScanGHz - http://communities.vmware.com/thread/143828 - that are not well documented

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  • What is "Disable class based route addition" good for?

    - by JRoppert
    In the advanced TCP/IP settings of a VPN connection, i found a checkbox labeled with "Disable class based route addition". The checkbox is only enabled as long as "Use default gateway on remote network" is switched off. What is "Disable class based route addition" good for? Detailed instructions to find the settings: Open Properties of VPN connection Go to Networking tab Open Properties of "Internet Protocol Version 4 (TCP/IPv4)" (and/or TCP/IPv6) Click "Advanced..." Button Change to "IP Settings" tab Here you can find the checkboxes mentioned above

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  • Use native HBitmap in C# while preserving alpha channel/transparency. Please check this code, it works on my computer...

    - by David
    Let's say I get a HBITMAP object/handle from a native Windows function. I can convert it to a managed bitmap using Bitmap.FromHbitmap(nativeHBitmap), but if the native image has transparency information (alpha channel), it is lost by this conversion. There are a few questions on Stack Overflow regarding this issue. Using information from the first answer of this question (How to draw ARGB bitmap using GDI+?), I wrote a piece of code that I've tried and it works. It basically gets the native HBitmap width, height and the pointer to the location of the pixel data using GetObject and the BITMAP structure, and then calls the managed Bitmap constructor: Bitmap managedBitmap = new Bitmap(bitmapStruct.bmWidth, bitmapStruct.bmHeight, bitmapStruct.bmWidth * 4, PixelFormat.Format32bppArgb, bitmapStruct.bmBits); As I understand (please correct me if I'm wrong), this does not copy the actual pixel data from the native HBitmap to the managed bitmap, it simply points the managed bitmap to the pixel data from the native HBitmap. And I don't draw the bitmap here on another Graphics (DC) or on another bitmap, to avoid unnecessary memory copying, especially for large bitmaps. I can simply assign this bitmap to a PictureBox control or the the Form BackgroundImage property. And it works, the bitmap is displayed correctly, using transparency. When I no longer use the bitmap, I make sure the BackgroundImage property is no longer pointing to the bitmap, and I dispose both the managed bitmap and the native HBitmap. The Question: Can you tell me if this reasoning and code seems correct. I hope I will not get some unexpected behaviors or errors. And I hope I'm freeing all the memory and objects correctly. private void Example() { IntPtr nativeHBitmap = IntPtr.Zero; /* Get the native HBitmap object from a Windows function here */ // Create the BITMAP structure and get info from our nativeHBitmap NativeMethods.BITMAP bitmapStruct = new NativeMethods.BITMAP(); NativeMethods.GetObjectBitmap(nativeHBitmap, Marshal.SizeOf(bitmapStruct), ref bitmapStruct); // Create the managed bitmap using the pointer to the pixel data of the native HBitmap Bitmap managedBitmap = new Bitmap( bitmapStruct.bmWidth, bitmapStruct.bmHeight, bitmapStruct.bmWidth * 4, PixelFormat.Format32bppArgb, bitmapStruct.bmBits); // Show the bitmap this.BackgroundImage = managedBitmap; /* Run the program, use the image */ MessageBox.Show("running..."); // When the image is no longer needed, dispose both the managed Bitmap object and the native HBitmap this.BackgroundImage = null; managedBitmap.Dispose(); NativeMethods.DeleteObject(nativeHBitmap); } internal static class NativeMethods { [StructLayout(LayoutKind.Sequential)] public struct BITMAP { public int bmType; public int bmWidth; public int bmHeight; public int bmWidthBytes; public ushort bmPlanes; public ushort bmBitsPixel; public IntPtr bmBits; } [DllImport("gdi32", CharSet = CharSet.Auto, EntryPoint = "GetObject")] public static extern int GetObjectBitmap(IntPtr hObject, int nCount, ref BITMAP lpObject); [DllImport("gdi32.dll")] internal static extern bool DeleteObject(IntPtr hObject); }

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  • Mysql eliminate user based on conditions

    - by Dustin
    I asked this last week over the weekend and it got buried in the archives before anyone could answer. So forgive me if you've already seen this. I teach classes and want to be able to select those students who have taken one class, but not another class. I have two tables: lessons_slots which is the table for every class such as: -------------------- -ID name slots- -1 basics 10 - -2 advanced 10 - -3 basics 10 - --------------------- The other table is class_roll, which holds enrollment info, such as: -------------------- -sID classid firstname lastname- -1 1 Jo Schmo -2 1 Person Two ... -13 2 Jo Schmo --------------------- What I want to do, I select everyone who has not had the advanced class (for example). I've tried doing SELECT * FROM lessons_slots LEFT JOIN class_roll ON lessons_slots.ID = class_roll.classid WHERE lessons_slots.name != 'advanced' But that doesn't work...All it does is eliminate that row, without eliminating the user. I want Jo Schmo, for example, to not show up in the results. Any ideas?

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