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  • Acer Aspire blank screen

    - by Gerep
    I'm using Ubuntu 11.04 Natty and when I installed it I had a problem with blank screen on startup and found a solution but I have the same problem when it is inactive and goes blank screen, it won't come back, so I have to restart. Any ideas? Thanks in advance for any help. This is what solved my first problem: When you start editing the /etc/rc.local and add before exit 0: setpci -s 00:02.0 F4.B=00 Edit /etc/default/grub, edit the line GRUB_CMDLINE_LINUX_DEFAULT: GRUB_CMDLINE_LINUX_DEFAULT = "quiet splash acpi_osi = Linux" Update grub with: sudo update-grub2

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  • Error trapping for a missing data source in a Spring MVC / Spring JDBC web app [migrated]

    - by Geeb
    I have written a web app that uses Spring MVC libraries and Spring JDBC to connect to an Oracle DB. (I don't use any ORM type libraries as I create stored procedures on Oracle that do my stuff and I'm quite happy with that.) I use a connection pool to Oracle managed by the Tomcat container The app generally works absolutely fine by the way! BUT... I noticed the other day when I tried to set up the app on another Tomcat instance that I had forgotten to configure the connection pool and obviously the app could not get hold of an org.apache.commons.dbcp.BasicDataSource object, so it crashed. I define the pool params in the tomcat "context.conf" In my "web.xml" I have: <servlet> <servlet-name>appServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/Spring/appServlet/servlet-context.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>appServlet</servlet-name> <!-- Map *everything* to appServlet --> <url-pattern>/</url-pattern> </servlet-mapping> <resource-ref> <description>Oracle Datasource example</description> <res-ref-name>jdbc/ora1</res-ref-name> <res-type>org.apache.commons.dbcp.BasicDataSource</res-type> <res-auth>Container</res-auth> </resource-ref> And I have a Spring "servlet-context.xml" where JNDI is used to map the data source object provided by the connection pool to a Spring bean with the ID of "dataSource": <jee:jndi-lookup id="dataSource" jndi-name="java:comp/env/jdbc/ora1" resource-ref="true" /> Here's the question: Where do I trap the case where the database cannot be accessed for whatever reason? I don't want the user to see a yard-and-a-half of Java stack trace in their browser, rather a nicer message that tells them there is a database problem etc. It seems that my app tries to configure the "dataSource" bean (in "servlet-context.xml") before any code has tested it can actually provide a dataSource object from the pool?! Maybe I'm not fully understanding exactly what is going on in these stages of the app firing up ... Thanks for any advice!

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  • Root Access: Don Dodge talks to 3 time founder Jennifer Reuting of DocRun

    Root Access: Don Dodge talks to 3 time founder Jennifer Reuting of DocRun Three time startup founder Jennifer Reuting, CEO of DocRun, and author of LLCs for Dummies, sits down with Don Dodge to talk startups. Jennifer started her first company at 17 from the ashes of a failed company. Jennifer is revolutionizing the legal docs business with DocRun. Inspiring interview. From: GoogleDevelopers Views: 258 12 ratings Time: 44:37 More in Science & Technology

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  • How to install 3d support?

    - by Gonzalo
    I'm trying Natty and after an upgrade I received this message: "Sorry, you don't have 3d support, install it for your graphic hardware to get Unity or please reboot and select 'Classic session' at startup." So I want to install 3D support but I don't know how to. My machine is a Sony Vaio VGN-SR29XN Laptop with Intel Graphics, but I would like to know the general instructions. P.S. : I've no problem with the CLI, I just don't know how to proceed in this particular case (what driver, or program...).

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  • SOS, i erased a disk,1T.by mistake

    - by gabriel
    i tried to make bootable a flash drive from the startup disk creator, and i wanted to copy an iso of the 11.10 ubuntu, and when i tried to erase the flash drive i pressed erase on another removable drive 1T storage by mistake, VVVery very very quickly less than one second and with no warning everything was erased i suppose.Is that thing possible?When i tried before theis to erase the flash drive it took around a minute to erase the 8GB.But now less than a second for 1T? Please help, Gabriel

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  • SQL SERVER – Weekly Series – Memory Lane – #048

    - by Pinal Dave
    Here is the list of selected articles of SQLAuthority.com across all these years. Instead of just listing all the articles I have selected a few of my most favorite articles and have listed them here with additional notes below it. Let me know which one of the following is your favorite article from memory lane. 2007 Order of Result Set of SELECT Statement on Clustered Indexed Table When ORDER BY is Not Used Above theory is true in most of the cases. However SQL Server does not use that logic when returning the resultset. SQL Server always returns the resultset which it can return fastest.In most of the cases the resultset which can be returned fastest is the resultset which is returned using clustered index. Effect of TRANSACTION on Local Variable – After ROLLBACK and After COMMIT One of the Jr. Developer asked me this question (What will be the Effect of TRANSACTION on Local Variable – After ROLLBACK and After COMMIT?) while I was rushing to an important meeting. I was getting late so I asked him to talk with his Application Tech Lead. When I came back from meeting both of them were looking for me. They said they are confused. I quickly wrote down following example for them. 2008 SQL SERVER – Guidelines and Coding Standards Complete List Download Coding standards and guidelines are very important for any developer on the path of a successful career. A coding standard is a set of guidelines, rules and regulations on how to write code. Coding standards should be flexible enough or should take care of the situation where they should not prevent best practices for coding. They are basically the guidelines that one should follow for better understanding. Download Guidelines and Coding Standards complete List Download Get Answer in Float When Dividing of Two Integer Many times we have requirements of some calculations amongst different fields in Tables. One of the software developers here was trying to calculate some fields having integer values and divide it which gave incorrect results in integer where accurate results including decimals was expected. Puzzle – Computed Columns Datatype Explanation SQL Server automatically does a cast to the data type having the highest precedence. So the result of INT and INT will be INT, but INT and FLOAT will be FLOAT because FLOAT has a higher precedence. If you want a different data type, you need to do an EXPLICIT cast. Renaming SP is Not Good Idea – Renaming Stored Procedure Does Not Update sys.procedures I have written many articles about renaming a tables, columns and procedures SQL SERVER – How to Rename a Column Name or Table Name, here I found something interesting about renaming the stored procedures and felt like sharing it with you all. The interesting fact is that when we rename a stored procedure using SP_Rename command, the Stored Procedure is successfully renamed. But when we try to test the procedure using sp_helptext, the procedure will be having the old name instead of new names. 2009 Insert Values of Stored Procedure in Table – Use Table Valued Function It is clear from the result set that , where I have converted stored procedure logic into the table valued function, is much better in terms of logic as it saves a large number of operations. However, this option should be used carefully. The performance of the stored procedure is “usually” better than that of functions. Interesting Observation – Index on Index View Used in Similar Query Recently, I was working on an optimization project for one of the largest organizations. While working on one of the queries, we came across a very interesting observation. We found that there was a query on the base table and when the query was run, it used the index, which did not exist in the base table. On careful examination, we found that the query was using the index that was on another view. This was very interesting as I have personally never experienced a scenario like this. In simple words, “Query on the base table can use the index created on the indexed view of the same base table.” Interesting Observation – Execution Plan and Results of Aggregate Concatenation Queries Working with SQL Server has never seemed to be monotonous – no matter how long one has worked with it. Quite often, I come across some excellent comments that I feel like acknowledging them as blog posts. Recently, I wrote an article on SQL SERVER – Execution Plan and Results of Aggregate Concatenation Queries Depend Upon Expression Location, which is well received in the community. 2010 I encourage all of you to go through complete series and write your own on the subject. If you write an article and send it to me, I will publish it on this blog with due credit to you. If you write on your own blog, I will update this blog post pointing to your blog post. SQL SERVER – ORDER BY Does Not Work – Limitation of the View 1 SQL SERVER – Adding Column is Expensive by Joining Table Outside View – Limitation of the View 2 SQL SERVER – Index Created on View not Used Often – Limitation of the View 3 SQL SERVER – SELECT * and Adding Column Issue in View – Limitation of the View 4 SQL SERVER – COUNT(*) Not Allowed but COUNT_BIG(*) Allowed – Limitation of the View 5 SQL SERVER – UNION Not Allowed but OR Allowed in Index View – Limitation of the View 6 SQL SERVER – Cross Database Queries Not Allowed in Indexed View – Limitation of the View 7 SQL SERVER – Outer Join Not Allowed in Indexed Views – Limitation of the View 8 SQL SERVER – SELF JOIN Not Allowed in Indexed View – Limitation of the View 9 SQL SERVER – Keywords View Definition Must Not Contain for Indexed View – Limitation of the View 10 SQL SERVER – View Over the View Not Possible with Index View – Limitations of the View 11 2011 Startup Parameters Easy to Configure If you are a regular reader of this blog, you must be aware that I have written about SQL Server Denali recently. Here is the quickest way to reach into the screen where we can change the startup parameters. Go to SQL Server Configuration Manager >> SQL Server Services >> Right Click on the Server >> Properties >> Startup Parameters 2012 Validating Unique Columnname Across Whole Database I sometimes come across very strange requirements and often I do not receive a proper explanation of the same. Here is the one of those examples. For example “Our business requirement is when we add new column we want it unique across current database.” Read the solution to this strange request in this blog post. Excel Losing Decimal Values When Value Pasted from SSMS ResultSet It is very common when users are coping the resultset to Excel, the floating point or decimals are missed. The solution is very much simple and it requires a small adjustment in the Excel. By default Excel is very smart and when it detects the value which is getting pasted is numeric it changes the column format to accommodate that. Basic Calculation and PEMDAS Order of Operation Read this interesting blog post for fantastic conversation about the subject. Copy Column Headers from Resultset – SQL in Sixty Seconds #027 – Video http://www.youtube.com/watch?v=x_-3tLqTRv0 Delete From Multiple Table – Update Multiple Table in Single Statement There are two questions which I get every single day multiple times. In my gmail, I have created standard canned reply for them. Let us see the questions here. I want to delete from multiple table in a single statement how will I do it? I want to update multiple table in a single statement how will I do it? Read the answer in the blog post. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Memory Lane, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • Sqlite &amp; Entity Framework 4

    - by Dane Morgridge
    I have been working on a few client app projects in my spare time that need to persist small amounts of data and have been looking for an easy to use embedded database.  I really like db4o but I'm not wanting to open source this particular project so it was not an option.  Then I remembered that there was an ADO.NET provider for sqlite.  Being a fan of sqlite in general, I downloaded it and gave it an install.  The installer added tooling support for both Visual Studio 2008 & 2010 which is nice because I am working almost exclusively in 2010 at the moment.  I noticed that the provider also had support for Entity Framework, but not specifically v4.  I created a database using the tools that get installed with Visual Studio and all seemed to work fine.  I went on to create an Entity Framework context and selected the sqlite database and to my surprise it worked with out any problems.  The model showed up just like it would for any database and so I started to write a little code to test and then.. BAM!.. Exception. "Mixed mode assembly is built against version 'v2.0.50727' of the runtime and cannot be loaded in the 4.0 runtime without additional configuration information." A quick bit of searching on Bing found the answer.  To get it working, you need to include the following code in your web.config file: 1: <startup useLegacyV2RuntimeActivationPolicy="true"> 2: <supportedRuntime version="v4.0" /> 3: </startup> And then everything magically works.  Entity Framework 4 features worked, like lazy loading and even the POCO templates worked.  The only thing that didn't work was the model first development.  The SQL generated was for SQL Server and of course wouldn't run on sqlite without some modifications. The only other oddity I found was that in order to have an auto incrementing id, you have to use the full integer data type for sqlite; a regular int won't do the trick.  This translates to an Int64, or a long when working with it in Entity Framework.  Not a big deal, but something you need to be aware of. All in all, I am quite impressed with the Entity Framework support I found with sqlite.  I wasn't really expecting much at all, and I was pleasantly surprised. I downloaded the ADO.NET sqlite provider from http://sqlite.phxsoftware.com/.  If you want to use an embedded database with Entity Framework, give it a look.  It will be well worth your time.

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  • deploying security enabled app to WLS - null Password Given Error

    - by raghu.yadav
    if you notice "null password given Error" while accessing the security enabled app deployed in wls, follow below instructions.set the property -Djps.app.credential.overwrite.allowed=true to JAVA_PROPERTIES env within setDomainEnv.sh also ensure you run server in development mode.edit setDomainEnv.sh and set -Dweblogic.ProductionModeEnabled=false and startup the servers, now you access the app and then shutdown server and revert the -Dweblogic.ProductionModeEnabled=false to -Dweblogic.ProductionModeEnabled=true that's it.

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  • Tutorial: Controlling Your Linux System With fstab

    The /etc/fstab file gives you control over what filesystems are mounted at startup on your Linux system, including Windows partitions and network shares. You can also use it to control the mount points of removable storage devices like USB sticks and external hard disks. Akkana Peck shows us how.

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  • No sound in Ubuntu 12.04

    - by Mohd Arafat Hossain
    I installed Ubuntu 12.04 a month ago and am using it till now. I failed to notice that all this time there was no sound at all while running Ubuntu, even while playing a game in Wine. The weird thing is that only the startup sound comes when I log in (Indian/African drum tone), then comes the utter silence. I tested both Digital Output (S/PDIF) and the speakers in the sound settings but can hear nothing. Any help?

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  • Stop Office 2010 Upload Center Icon from Displaying in the Taskbar

    - by Mysticgeek
    One of the new features in Office 2010 is the ability to upload your files to Office Web Apps. When you do, an Upload Center icon appears in the Taskbar and helps manage documents. Here’s how to stop it from showing up. If you’re running Office 2010 and upload files to the web, you’ll notice the Microsoft Office Upload Center Icon appears on the Taskbar in the Notification Area. It will stay there even after you’re done uploading the document and closed out of all Office apps. You can use this to monitor and control the documents you’re uploading to the web. Getting rid of it is fairly simple. Right-click the icon and select Settings. When the Microsoft Office Upload Center Settings window appears, under Display Options, uncheck Display icon in notification area and click OK. That is all there is to it…now it will no longer appear in the Taskbar.   After you upload your first document, it will also want to startup with Windows. You can go into msconfig and disable it from automatically starting up. If you need to access it again, it’s part of  Office 2010 Tools which you can access from the Start Menu. Or you can type upload center into the Search box in the Start Menu and hit Enter. If you upload a lot of work to Microsoft Web Apps you might find this tool useful, but if you only occasionally upload docs, you might be annoyed by it always being in the Taskbar. Similar Articles Productive Geek Tips Manage Sending 2010 Documents to the Web with Office Upload CenterHow To Manage Action Center in Windows 7What is Mobsync.exe and Why Is It Running?Taskbar Eliminator Does What the Name Implies: Hides Your Windows TaskbarDisable Office 2010 Beta Send-a-Smile from Startup TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips HippoRemote Pro 2.2 Xobni Plus for Outlook All My Movies 5.9 CloudBerry Online Backup 1.5 for Windows Home Server Convert BMP, TIFF, PCX to Vector files with RasterVect Free Identify Fonts using WhatFontis.com Windows 7’s WordPad is Actually Good Greate Image Viewing and Management with Zoner Photo Studio Free Windows Media Player Plus! – Cool WMP Enhancer Get Your Team’s World Cup Schedule In Google Calendar

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  • How to run python script at login screen?

    - by virpara
    I use a python script to set brightness to zero. #!/usr/bin/python import dbus bus = dbus.SessionBus() proxy = bus.get_object('org.gnome.SettingsDaemon', '/org/gnome/SettingsDaemon/Power') iface = dbus.Interface(proxy,dbus_interface='org.gnome.SettingsDaemon.Power.Screen') iface.SetPercentage(0) I've put it in Startup Applications. It works only when I login. There is full brightness at login screen. Where should I put this so that it sets brightness to zero at login screen?

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  • WebCenter Customer Spotlight: Ferrous Resources do Brasil S.A.

    - by me
    Author: Peter Reiser - Social Business Evangelist, Oracle WebCenter  Solution SummaryFerrous Resources do Brasil S.A. (Ferrous) is a startup company whose core business is the exploration, prospection, exploitation, and commercialization of iron ore. They wanted to create an effective, secure and scalable document management system to support the company’s new iron ore exploration operations in Brazil. Ferrous worked with the Oracle Partner 2D Tecnologia to implement a centralized document management system using  Oracle WebCenter Content. The single repository hold almost 220,000 files with an expected to growth to 8 million files in the next two years.  The solution has reduced  financial audit reporting from two weeks to only four days. Company OverviewFounded in 2007, Ferrous Resources do Brasil S.A. (Ferrous) is a startup company whose core business is the exploration, prospection, exploitation, and commercialization of iron ore. Ferrous intends to become one of the five largest iron ore mining companies in the world within the next few years.  Business ChallengesFerrous wanted to create an effective, secure and scalable document management system to support the company’s new iron ore exploration operations in Brazil. Solution DeployedFerrous worked with the Oracle Partner 2D Tecnologia to implement a centralized document management system using  Oracle WebCenter Content. They consolidated all company documents into a single repository to hold almost 220,000 files, including iron-ore project layout and pictures for a repository that is expected to grow to 8 million files in the next two years. Business Results Gained access to reports on individual files of pictures, project layouts, text files, spreadsheets, and slides–enabling the company to find out who opened and altered each  file and when, as well as to access previous versions Enabled investors and board of directors abroad to access all company documents via a Web portal, something that was previously achieved only through e-mails or CD file transfers Enabled the company to consolidate all files, which were mostly disseminated in pen drives and desktops, so that they are now available to more than 500 system users, including investors, lawyers, partners, and 320 in-company users Reduced time to search specific documents, saving several days in financial audit reporting, an activity that previously took two weeks and now requires only four days  “With Oracle WebCenter Content, we managed to organize, control, and protect the company’s files since the beginning of operations and, as a consequence, can offer rapid and transparent access to all company documents.” Frederico Samartini, Business Performance Manager, Ferrous Resources do Brasil S.A. Additional Information Ferrous Customer Snapshot Oracle WebCenter Content

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  • Slow boot time since upgrade to 12.04 from 11.10

    - by danh28
    I have tried for quite a while now to reduce my boot time, disabled some startup items, removed packages that were causing crashes after boot, removed ureadahead pack files, reinstalled ureadahead, uninstalled ureadahead and installed e4rat....and nothing has made that much difference. e4rat made the biggest difference with a reduction of a few seconds but my boot time is still around 80 seconds. Can anyone help? Dmesg and bootchart below: dmesg bootchart

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  • Reviewed: OpenOffice.org 3.2

    <b>Tux Radar:</b> "There's a new version of Linux's grandest office suite, but is it a major step forward or just another humdrum release with little to show? And most importantly, does it finally get the startup time down to an acceptable level? Read on for all the gory details..."

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  • Enabling super single user mode with SQL Server

    - by simonsabin
    I recently got an email from a fellow MVP about single user mode. It made me think about some features I had just been looking at and so I started playing. The annoyance about single user mode for SQL Server is that its not really single user, but more like single connection mode. So how can you get round it, well there is extension to the -m startup option that allows you to specify an application name, and only connections with that application name can connect. This is very useful if you have...(read more)

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  • Setting useLegacyV2RuntimeActivationPolicy At Runtime

    - by Reed
    Version 4.0 of the .NET Framework included a new CLR which is almost entirely backwards compatible with the 2.0 version of the CLR.  However, by default, mixed-mode assemblies targeting .NET 3.5sp1 and earlier will fail to load in a .NET 4 application.  Fixing this requires setting useLegacyV2RuntimeActivationPolicy in your app.Config for the application.  While there are many good reasons for this decision, there are times when this is extremely frustrating, especially when writing a library.  As such, there are (rare) times when it would be beneficial to set this in code, at runtime, as well as verify that it’s running correctly prior to receiving a FileLoadException. Typically, loading a pre-.NET 4 mixed mode assembly is handled simply by changing your app.Config file, and including the relevant attribute in the startup element: <?xml version="1.0" encoding="utf-8" ?> <configuration> <startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0"/> </startup> </configuration> .csharpcode { background-color: #ffffff; font-family: consolas, "Courier New", courier, monospace; color: black; font-size: small } .csharpcode pre { background-color: #ffffff; font-family: consolas, "Courier New", courier, monospace; color: black; font-size: small } .csharpcode pre { margin: 0em } .csharpcode .rem { color: #008000 } .csharpcode .kwrd { color: #0000ff } .csharpcode .str { color: #006080 } .csharpcode .op { color: #0000c0 } .csharpcode .preproc { color: #cc6633 } .csharpcode .asp { background-color: #ffff00 } .csharpcode .html { color: #800000 } .csharpcode .attr { color: #ff0000 } .csharpcode .alt { background-color: #f4f4f4; margin: 0em; width: 100% } .csharpcode .lnum { color: #606060 } This causes your application to run correctly, and load the older, mixed-mode assembly without issues. For full details on what’s happening here and why, I recommend reading Mark Miller’s detailed explanation of this attribute and the reasoning behind it. Before I show any code, let me say: I strongly recommend using the official approach of using app.config to set this policy. That being said, there are (rare) times when, for one reason or another, changing the application configuration file is less than ideal. While this is the supported approach to handling this issue, the CLR Hosting API includes a means of setting this programmatically via the ICLRRuntimeInfo interface.  Normally, this is used if you’re hosting the CLR in a native application in order to set this, at runtime, prior to loading the assemblies.  However, the F# Samples include a nice trick showing how to load this API and bind this policy, at runtime.  This was required in order to host the Managed DirectX API, which is built against an older version of the CLR. This is fairly easy to port to C#.  Instead of a direct port, I also added a little addition – by trapping the COM exception received if unable to bind (which will occur if the 2.0 CLR is already bound), I also allow a runtime check of whether this property was setup properly: public static class RuntimePolicyHelper { public static bool LegacyV2RuntimeEnabledSuccessfully { get; private set; } static RuntimePolicyHelper() { ICLRRuntimeInfo clrRuntimeInfo = (ICLRRuntimeInfo)RuntimeEnvironment.GetRuntimeInterfaceAsObject( Guid.Empty, typeof(ICLRRuntimeInfo).GUID); try { clrRuntimeInfo.BindAsLegacyV2Runtime(); LegacyV2RuntimeEnabledSuccessfully = true; } catch (COMException) { // This occurs with an HRESULT meaning // "A different runtime was already bound to the legacy CLR version 2 activation policy." LegacyV2RuntimeEnabledSuccessfully = false; } } [ComImport] [InterfaceType(ComInterfaceType.InterfaceIsIUnknown)] [Guid("BD39D1D2-BA2F-486A-89B0-B4B0CB466891")] private interface ICLRRuntimeInfo { void xGetVersionString(); void xGetRuntimeDirectory(); void xIsLoaded(); void xIsLoadable(); void xLoadErrorString(); void xLoadLibrary(); void xGetProcAddress(); void xGetInterface(); void xSetDefaultStartupFlags(); void xGetDefaultStartupFlags(); [MethodImpl(MethodImplOptions.InternalCall, MethodCodeType = MethodCodeType.Runtime)] void BindAsLegacyV2Runtime(); } } Using this, it’s possible to not only set this at runtime, but also verify, prior to loading your mixed mode assembly, whether this will succeed. In my case, this was quite useful – I am working on a library purely for internal use which uses a numerical package that is supplied with both a completely managed as well as a native solver.  The native solver uses a CLR 2 mixed-mode assembly, but is dramatically faster than the pure managed approach.  By checking RuntimePolicyHelper.LegacyV2RuntimeEnabledSuccessfully at runtime, I can decide whether to enable the native solver, and only do so if I successfully bound this policy. There are some tricks required here – To enable this sort of fallback behavior, you must make these checks in a type that doesn’t cause the mixed mode assembly to be loaded.  In my case, this forced me to encapsulate the library I was using entirely in a separate class, perform the check, then pass through the required calls to that class.  Otherwise, the library will load before the hosting process gets enabled, which in turn will fail. This code will also, of course, try to enable the runtime policy before the first time you use this class – which typically means just before the first time you check the boolean value.  As a result, checking this early on in the application is more likely to allow it to work. Finally, if you’re using a library, this has to be called prior to the 2.0 CLR loading.  This will cause it to fail if you try to use it to enable this policy in a plugin for most third party applications that don’t have their app.config setup properly, as they will likely have already loaded the 2.0 runtime. As an example, take a simple audio player.  The code below shows how this can be used to properly, at runtime, only use the “native” API if this will succeed, and fallback (or raise a nicer exception) if this will fail: public class AudioPlayer { private IAudioEngine audioEngine; public AudioPlayer() { if (RuntimePolicyHelper.LegacyV2RuntimeEnabledSuccessfully) { // This will load a CLR 2 mixed mode assembly this.audioEngine = new AudioEngineNative(); } else { this.audioEngine = new AudioEngineManaged(); } } public void Play(string filename) { this.audioEngine.Play(filename); } } Now – the warning: This approach works, but I would be very hesitant to use it in public facing production code, especially for anything other than initializing your own application.  While this should work in a library, using it has a very nasty side effect: you change the runtime policy of the executing application in a way that is very hidden and non-obvious.

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  • No sound in Ubuntu except at log in

    - by Mohd Arafat Hossain
    I installed Ubuntu 12.04 a month ago and am using it till now. I failed to notice that all this time there was no sound at all while running Ubuntu, even while playing a game in Wine. The weird thing is that only the startup sound comes when I log in (Indian/African drum tone), then comes the utter silence. I tested both Digital Output (S/PDIF) and the speakers in the sound settings but can hear nothing. Any help?

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  • MediaTomb permission denied on my truecrypt mount

    - by sarveshlad
    I want to install Mediatomb i have two HDD a small 120 gb and a 1tb drive the 1 tb drive has 3 partition and is encrypted with truecrypt when i run the Mediatomb it can read the drives on the 120 gb but not on the 1 tb the 1tb drive is mounted on startup using a script also i have added truecrypt to the sudoers permission if it helps the permision on all 1 tb truecrypt mount pops up as my username where as the 2 partition from 120 gig has nobody i just got a Asus TF300T and i wanna stream media using DLNA/UPnP

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  • execute script with sudo after login

    - by Kalamalka Kid
    i need to execute the following commands AFTER login. sudo hdparm -y /dev/disk/by-uuid/443AFBAD7FE50945 sudo hdparm -y /dev/disk/by-uuid/7ABB49654B799D40 (trying to edit rc.local does not work nor does using hdparm.conf because as soon as I log in the disks start up again). I have tried numerous things like bash files and autossh entries in the startup applications with no luck because sudo is involved.

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  • Systems Not Booting after Ubuntu installation

    - by moros
    I recently installed Ubuntu on my PC dual-booted with Windows 7. After rebooting it went through the usual startup screens, but the OS selection screen never shows up. I cannot get either system to boot. I have formatted the partition holding the Ubuntu to no avail and I really don't want to get rid of Windows. I am currently stuck using the Live session disk to boot. Any help is greatly appreciated.

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  • Is the timeago date format appropiate for a website?

    - by Eduardo Campañó
    We're building a website for a startup and we encourage using the "timeago" format for displaying dates (i.e. less than a minute ago, about 5 minutes ago, about a month ago, etc.) but the client argues that it's not used in the US, that people are just not used to it. I can make a list of hundreds of sites using it, but of course, I'm a geek. So in adition to the main question, what are the pros and cons of the "timeago" date format?

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  • How to fix black tooltips in Eclipse?

    - by Smotko
    I am having a weird problem with Eclipse documentation tooltips. When I startup Eclipse the tooltip works as expected: But after I press the down button the tooltip turns black: and stays like that for the rest of the session. I am using Eclipse Galileo and Ubuntu 11.04 with the classic desktop. EDIT: I am only experiencing this problem in PHP Development Tools. The tooltips work in Java and Python projects.

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