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• How to tell if OpenGL is really working in Ubuntu 10.04

  - by Jonathan

  I have a lenovo S9e running Intel integrated graphics. Here is my lspci output related to the graphics: 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03) Subsystem: Lenovo Device 3870 Flags: bus master, fast devsel, latency 0 Memory at f0580000 (32-bit, non-prefetchable) [size=512K] Capabilities: [d0] Power Management version 2 I want to know how I can make sure OpenGL support is running in full on an Ubuntu 10.04 installation. I have a few hints to think that it is not: The "Desktop Effects" will not load Apps such as stardock, when attempting to use OpenGL rendering, will display black boxes instead of transparency In the games Pioneers, the number-tile icons are suspiciously just black circles Windows games running with Wine will only support software rendering, not hardware rendering When I boot into a Knoppix LiveCD, the desktop effects do work, splendidly, meaning compiz detects my computer as capable. My problem with troubleshooting is that Canonical has basically eliminated the conf-file-based mechanism of X11 as far as I can tell, thus making it even harder to ensure graphics modules are loading properly. How do I debug and test OpenGL on m Ubuntu 10.04 installation?

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• iTunes Sync erasing Exchange calendar / contacts

  - by Garrett

  We have had a handful of instances where corporate iPhone users will be syncing Calendar/Contacts/etc in their iTunes settings, and we would like to prevent this. Unfortunately, when they sync their empty home Outlook calendars it then overwrites everything in their iPhone calendar. This has the unpleasant side effect up "updating" Exchange and wiping out every meeting they have. Luckily, our backups have bailed us out in each case - there seems to be no recovering from it any other way as the data is gone. We prefer to allow our users to continue loading media on their phones, which we believe requires iTunes. Is there a way, through Exchange ActiveSync or iOS mobile management, to prevent this from happening?

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• Cannot increase my screen resolution

  - by Patrick Beardmore

  I am trying to install my new monitor but my Graphics Adapter (Mobile Intel(R) 915GM/GMS,910GML Express Chipset Family) does not offer a resolution of 1920x1080 in the [Display Properties Settings] window. It only offers up to 1360x768. Can anyone explain to me how I can increase this number to the correct resolution. The monitor does show my the windows desktop, albeit at a lower resolution which is being stretched to fill the screen, making it look very blurry. I have installed the "Monitor Drivers" I found on the disk supplied with new monitor, but these do not appear to have made any difference. The Intel software that comes with the graphics card has an information window containing lots of info about the card and the monitor itself. I have placed this on a webpage so you can examine it if helpful. Many thanks with your help in getting my Christmas present to work! Patrick P.S.: Before I got this screen I checked to see if my graphics card could cope with such a large screen.

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• Why is hibernation still used?

  - by Moses

  I've never quite understood the original purpose of the Hibernation power state in Windows. I understand how it works, what processes take place, and what happens when you boot back up from Hibernate, but I've never truly understood why it's used. With today's technology, most notably with SSDs, RAM and CPUs becoming faster and faster, a cold boot on a clean/efficient Windows installation can be pretty fast (for some people, mere seconds from pushing the power button). Standby is even faster, sometimes instantaneous. Even SATA drives from 5-6 years ago can accomplish these fast boot times. Hibernation seems pointless to me when modern technology is considered, but perhaps there are applications that I'm not considering. What was the original purpose behind hibernation, and why do people still use it? Edit: I rescind my comment about hibernation being obsolete, as it obviously has very practical applications to laptops and mobile PCs, considering the power restrictions. I was mostly referring to hibernation being used on a desktop.

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• Mail.app doesn't see mail changes; requires mailbox "rebuild"

  - by vy32

  I use Mail.app on 4 different computers to access the same mailboxes. I see the same problem on all of them --- if the Mail.app is running, then it catches all of the mail updates. But if a machine is turned off, when it turns back on the mailbox doesn't synchronize properly. I might delete 20 mail messages on one system and they are still on system #2 until I "rebuild." I have seen this happen with the Mobile Me IMAP server, with Gmail, with courier IMAP, and with dovecot. Does anybody else see this? What should I do? Is there a mail server that this happens less with? It's very frustrating, as I get 200-300 mail messages a day and frequently end up handling email messages multiple times.

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• Windows Media Player 11 Not Detecting Autoplaylists

  - by tuna

  Every time I open Windows Media Player it fails to detect my autoplaylists stored in <my music library dir>\Playlists. This appears to lead to sync problems since I (exclusively) use autoplaylists to sync music to my mobile. As WMP 11 fails to find the any sync autoplaylists it infuriatingly seems to decide that I want no music at all on my phone and proceeds to delete all my music off my phone. I guess these are two seperate problems but it seems to me they are related. If anyone can shed any light on a fix, that would be much appreciated. Many thanks

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• Server problem (duh)

  - by j-t-s

  Sorry the title couldn't be more specific. I installed Abyss Web Server. I'm running Windows XP Home Edition and I have Wireless Mobile Broadband internet. I used to be able to access (and other people on other networks) my site by entering my ip address in the browser, but after I formatted, and the installed abyss web server again, this does not work anymore. There are no errors. I CAN visit my own site by entering my ip address BUT anybody else can't do the same, it just says "connecting" in the browser's statusbar and it never changes. I have consulted the docs and have found no help. Google hasn't helped with this problem either. Can somebody please help? Thank you :)

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• Server problem (duh)

  - by j-t-s

  Sorry the title couldn't be more specific. I installed Abyss Web Server. I'm running Windows XP Home Edition and I have Wireless Mobile Broadband internet. I used to be able to access (and other people on other networks) my site by entering my ip address in the browser, but after I formatted, and the installed abyss web server again, this does not work anymore. There are no errors. I CAN visit my own site by entering my ip address BUT anybody else can't do the same, it just says "connecting" in the browser's statusbar and it never changes. I have consulted the docs and have found no help. Google hasn't helped with this problem either. Can somebody please help? Thank you :)

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• Using Apache Environment Variables to set custom ErrorDocument

  - by Tad

  I've got a set of RewriteCond rules that test for various mobile devices and then set environment variables like "env=device:.iphone" or "env=device:.smartphone" if the useragent matches an iPhone or Android device. I'm trying to now redirect the user to custom-styled 404/500 server error pages for each device, by way of the error pages. Ideally I'd like to be able to test for a variable being there, and then write in a custom ErrorDocument string. But an apache doesn't seem to work in this case. Any ideas how I can construct if/else tests in an apache conf file for environment vars?

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• Is there some standard way to publish a calendar feed?

  - by CMP

  For a web application I am working on, I would like to be able to give the user a single url that they can enter into the calendar application of their choosing to have events from our application show up in their calendar. Most other sites I have seen that do similar things will have a one time download of an .ics file that can be imported. If I have to require my users to download a new file every time the schedule changes, it sort of defeats the purpose of having the feed at all. The calendar can change many many times a day. What I would really like is something like rss where their calendar program can look up a url and automatically see the most recent data. Does anything like this exist? Our main target is mobile devices, so it really should be supported by iCal and google Calendar. Anything else is bonus.

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• Can SHA-1 algorithm be computed on a stream? With low memory footprint?

  - by raoulsson

  I am looking for a way to compute SHA-1 checksums of very large files without having to fully load them into memory at once. I don't know the details of the SHA-1 implementation and therefore would like to know if it is even possible to do that. If you know the SAX XML parser, then what I look for would be something similar: Computing the SHA-1 checksum by only always loading a small part into memory at a time. All the examples I found, at least in Java, always depend on fully loading the file/byte array/string into memory. If you even know implementations (any language), then please let me know!

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• Mahout Recommendations on Binary data

  - by Pranay Kumar

  Hi, I'm a newbie to mahout.My aim is to produce recommendations on binary user purchased data.So i applied item-item similarity model in computing top N recommendations for movie lens data assuming 1-3 ratings as a 0 and 4-5 ratings as a 1.Then i tried evaluating my recommendations with the ratings in the test-data but hardly there have been two or three matches from my top 20 recommendations to the top rated items in test data and no match for most users. So are my recommendations totally bad by nature or do i need to go for a different measure for evaluating my recommendations ? Please help me ! Thanks in advance. Pranay, 2nd yr ,UG student.

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• Why might different computers calculate different arithmetic results in VB.NET?

  - by Eyal

  I have some software written in VB.NET that performs a lot of calculations, mostly extracting jpegs to bitmaps and computing calculations on the pixels like convolutions and matrix multiplication. Different computers are giving me different results despite having identical inputs. What might be the reason? Edit: I can't provide the algorithm because it's proprietary but I can provide all the relevant operations: ULong \ ULong (Turuncating division) Bitmap.Load("filename.bmp') (Load a bitmap into memory) Bitmap.GetPixel(Integer, Integer) (Get a pixel's brightness) Double + Double Double * Double Math.Sqrt(Double) Math.PI Math.Cos(Double) ULong - ULong ULong * ULong ULong << ULong List.OrderBy(Of Double)(Func) Hmm... Is it possible that OrderBy is using a non-stable QuickSort and that QuickSort is using a random pivot? Edit: Just tested, nope. The sort is stable.

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• HTC Android Messages - adding contact from SMS

  - by Chris

  I'm not sure if this problem is specific to Android, HTC or Sense UI; apologies! Phone: T-Mobile G2 aka HTC Hero OS: Android 1.5 App: Messages Scenario: I receive a text from someone not in my Contacts, so just have their number. I want to add them as a new contact. Problem: I can't (click on the number and I can call them; long press on the message and I can add to an exist contact). Is there any way I can add a new contact simply?

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• How to build an outbound load balancer with linux?

  - by matnagel

  We have a small house in the countryside and there is no fixed broadband, so we had a mobile flatrate first, and for 2 people with 2 computers it was too slow, so now we have 2 flatrates for 2 client machines. So I pay 2 flatrates and have double bandwith theoretically. There is a local network in the house that connects everything. But when I am alone I wonder how I can use both connections at the same time. I want to build a solution where I can browse the web and page requests are spread between the 2 connections. I imagine there are expensive routers who can split the traffic between 2 lines. But is there a good way to do it with linux? The solution I am looking for will split the requests already for one page (multiple images, css files, javascrfipt files) between the two lines.

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• Exchange 2010 Multiple accounts in one mailbox

  - by durilai

  I am looking for best practice or recommended ways of doing the following: I have a user that has 2 email addresses, he accesses them via POP 3 and OWA. He need to be able to send as each of the addresses. I do not want to create multiple AD accounts or mailboxes, but would like to be able to provide that visual separation. Is this possible, I know using Outlook I am able to add multiple POP3 accounts and he can send from whichever he choose, but how to enable this is OWA, as well as on a mobile using POP3. Thanks

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• How can I use Amazon's API in PHP to search for books?

  - by TerranRich

  I'm working on a Facebook app for book sharing, reviewing, and recommendations. I've scoured the web, searched Google using every search phrase I could think of, but I could not find any tutorials on how to access the Amazon.com API for book information. I signed up for an AWS account, but even the tutorials on their website didn't help me one bit. They're all geared toward using cloud computing for file storage and processing, but that's not what I want. I just want to access their API to search info on books. Kind of like how http://openlibrary.org/ does it, where it's a simple URL call to get information on a book (but their databases aren't nearly as populated as Amazon's). Why is it so damned hard to find the information I need on Amazon's AWS site? If anybody could help, I would greatly appreciate it.

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• Consolidating Contacts from Multiple Services

  - by SquareWheel

  I'm looking for a good way to consolidate my many email/messenger contacts through my different accounts and services. I'd like to have all my contacts in one place, or have them sync between all my different services so they are the same everywhere. If possible, it should support Live Mail/Messenger, Google Contacts, and mobile syncing. Windows Live Mail is great for accessing all your mail accounts, but the contacts viewer only works for contacts affiliated with that Live account. I could go for the contacts folder built into Vista and above, but Live messenger doesn't access that so I would have a separate set of contacts for my IM account. Is there software, or an online service, that can do this? If this is asking to much, is there a proper solution to Live/Google Contacts bidirectional sync?

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• starting 64 Bit Windows Application Development

  - by user173438

  I intend to start writing a 64 Bit Scientific Computing Application (signal processing) for Windows using Microsoft Visual Studio 2008. What should I have ready as far as a development platform is concerned? How would it be different from 32 Bit development? What could be the porting issues for a 32 Bit version that I already have (ok - this might too early to ask.. even before I start compiling)? As you might have guessed, I am looking for general directions. All pointers would be much appreciated! :) Thanks in advance..

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• Video on demand streaming solution

  - by Rafal Saltarski

  we are looking into building a commercial vod service and I'm doing research on the subject. We need the video to be protected with DRM so users cant rip/copy (i realise its mostly useless but the lawyers demand it from us) and the server solution to be scalable and able to distrubute content in hd to a high number of clients. Besides, we would need to be able to develop a player integrated with the payment system, so users that havent bought access would for example only see the first 30 seconds of video and then have the playback interrupted, or only be able to watch video for 72h after payment. Also it would be nice if we could distribute video to mobile platforms like android/wp8/ios but thats not a priority at the moment. I have zero experience on that topic so I would greatly appreciate any feedback or giving me stuff to read about like protocols or key phrases i should know. Thanks

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• Screen is black at login screen if display driver is enabled

  - by Amir Rachum

  I have a Lenovo x200 and recently its screen didn't work, so I took it to a repair lab. The guy told me they replaced the screen inverter. I powered up the laptop and the ThinkPad logo was shown, so I was happy. When I got home the computer would boot up, then instead of the logon screen, I got a black screen. Went to safe mode, disabled the display adapters, reset the computer, and I got a clean boot. Then I tried to reinstall the drivers, and it just led to the same condition. My video card is (from device manager): Mobile Intel(R) 4 Series Express Chipset Family. Now my laptop works as I'm working with display drivers disabled, but without display drivers I can't watch movies, etc. Any solution to this problem? Edit: I plugged in an external monitor and it works on it with display drivers enabled. However, it does not find the laptop monitor.

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• Blue screen MEMORY_MANAGEMENT on Windows 7 Enterprise

  - by Lucas Kauffman

  I'm running a machine (MSI GT 70) with 32 GB ram as a mobile server. It seems that at random points in time it will BSOD with as message MEMORY_MANAGEMENT. So the first thing I did was do several memtests, but they did not give away any defective modules. I'm a bit clueless at the moment as it just seems to happen at random points in time giving me little or no indication of what might be wrong. I opened up the dumps with BSODviewer, they just seem to point to the windows kernel. I tried reinstalling Windows but the behavior remains the same.

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• Adobe Flex + Air or Java + JavaFX 2.0?

  - by kuyapangu

  Hey guys! I'm looking into a cloud-computing related career. I've recently graduated from school and have been meaning to study a new programming language. From what I understand, I need to get into RIA development for this. Flex and Java have certainly caught my attention, but I am torn as to whether focus on Flex then continue with Air, or study Java first and see how JavaFX 2.0 pans out, and then continue with Flex thereafter. I've no previous experience with either, and I'm sort of giving myself something like two years or so to learn. What do guys think? Thanks for the feedback! :)

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• How to stop iPhone's safari browser from silently dropping tabs when you open a 9th tab?

  - by MattH

  Currently in the iPhone safari mobile browser, if you have 8 tabs open and open a new tab, the new tab opens as requested, but one of the existing tabs is silently discarded. Is there any known way to change this behaviour, e.g. to prompt me first and allow me to choose which tab to close, or to open the 9th tab, or to at least have visibility of what tab was closed? When I open something in a new tab it's because I want to come back to the previous tab later, so this conflicts with the way I usually browse the web. My current workaround is to manually monitor the tab count -- i.e. to check that the count is 7 or less before opening a new tab.

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• ASP.NET gridview control in side update panel has a problem

  - by Eyla

  Greetings, I have gridview with SelectedIndexChanged event. when I click on a record in gridview it should call the SelectedIndexChanged event and do some operations. SelectedIndexChanged event is working OK, but when I put the gridview inside ajax updatepanle SelectedIndexChanged event will not response even if I add AsyncPostBackTrigger trigger for SelectedIndexChanged event. Please look at my code and advice me what I should do!! Thank you <%@ Page Title="" Language="C#" MasterPageFile="~/Master.Master" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="IMAM_APPLICATION.WebForm1" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %> <asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server"> <div id="mydiv"> <asp:UpdatePanel ID="UpdatePanel1" runat="server"> <ContentTemplate> <br /> <br /> <br /> <asp:GridView ID="GridView1" runat="server" style="position:absolute; top: 280px; left: 30px; height: 240px; width: 915px;" PageSize="5" onselectedindexchanged="GridView1_SelectedIndexChanged" AutoGenerateColumns="False" DataKeyNames="idcontact_info"> <Columns> <asp:CommandField ShowSelectButton="True" /> <asp:BoundField AccessibleHeaderText="Midle Name" DataField="Midle_Name" /> <asp:BoundField DataField="Last_Name" HeaderText="Last Name" /> <asp:BoundField DataField="Phone_home" HeaderText="Phone Home" /> <asp:BoundField DataField="cell_home" HeaderText="Mobile Home" /> <asp:BoundField DataField="phone_work" HeaderText="Phone Work" /> <asp:BoundField DataField="cell_Work" HeaderText="Mobile Work" /> <asp:BoundField DataField="Email_Home" HeaderText="Personal Home" /> <asp:BoundField DataField="Email_work" HeaderText="Work Email" /> </Columns> </asp:GridView> <br /> <br /> <br /></ContentTemplate> <Triggers> <asp:AsyncPostBackTrigger ControlID="GridView1" EventName="SelectedIndexChanged" /> </Triggers> </asp:UpdatePanel> <asp:RadioButton ID="rdoSearchFlat" runat="server" style="position:absolute; top: 565px; left: 70px;" Text="Flat Search" GroupName="Search"/> <asp:TextBox ID="txtSearch" runat="server" style="position:absolute; top: 560px; left: 170px;" ></asp:TextBox> <asp:Button ID="btnSearch" runat="server" Text="Search" style="position:absolute; top: 555px; left: 375px;" CausesValidation="False" onclick="btnSearch_Click"/> <asp:Label ID="Label7" runat="server" Style="position: absolute; top: 630px; left: 85px;" Text="First Name"></asp:Label> <asp:TextBox ID="txtFirstName" runat="server" Style="top: 630px; left: 185px; position: absolute; height: 22px; width: 128px"> </asp:TextBox> </div> </asp:Content>

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