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• Ubuntu 10.10 screen goes nuts and unreadable

  - by ChazD

  Running Ubuntu 10.10 in its own partition, also have Oracle Virtualbox 4 with Windows XP. Because i previously had a problem with a dark screen when i let the laptop on and i didn't use it for a long while i had set Power settings to Never sleep, never let the Display sleep. Monitor on install set to Laptop resolution 1400 by 1050, refresh rate 60 Hz, rotation Normal. The problem was when the computer was left on and i returned after about an hour, the screen was unreadable, similar to what used to happen to graphics cards before multisync became normal. So it appears as though the graphics card was asked to use a resolution it couldn't handle and went nuts. I had to power off the system, on restart everything was fine. Thanks for any suggestions. ChazD

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• Gridview - Conditional Images

  This Gridview sample shows how to, for each row, based on other data within that row, to show a different image. We do this by creating a TemplateField, and putting an ASP.Net Image control within it, called 'Image1'. Then, inside the RowDataBound event of the Gridview, we put code, which first, checks and finds the Image control in that row, and then assigning a different JPG file to the ImageURL property of that image. One other thing here, you'll notice, is that when the criteria is matched, we set the Image control's Visible property to 'True'. That's because, one extra criteria is, that if the Units In Stock is larger than 80, we set the Image control's Visible property to 'False'. Naturally, since we're checking one particular column in the Gridview for this data, we're using a Select Case statement.

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• Apache 2.4 PHP 5.4 MySQL enabled but not found? [migrated]

  - by jurchiks

  Just tried setting up the latest Apache (2.4.1 x86 VC10 from apachelounge) and PHP (5.4 VC9 TS X86, with the php5apache2_4.dll) on my PC and ran into this weird problem; in my php.ini I have enabled all of the following: extension=php_mysql.dll extension=php_mysqli.dll extension=php_pdo_mysql.dll but when I try to print the available PDO's using this: print_r(PDO::getAvailableDrivers()); It gives me an empty array. PhpMyAdmin and MantisBT also refuse to work, saying that the mysql extension is missing. phpinfo() gives this: PDO PDO support enabled PDO drivers no value and when searching for mysql, only the mysqlnd section pops up... The DLLs are there in the D:/php/ext folder and no errors pop up when starting up Apache, as well as no errors in the Windows Event Log, and PHP itself has no error log anyway. What could possibly be the problem with this? Before this I had Apache 2.2.22 from apachelounge and PHP 5.3.9 and I had no problems. Now nothing works...

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• is this the correct way to use glTexCoordPointer?

  - by RubyKing

  Hey all Just trying to work out how to use this function glTexCoordPointer. Here is the man pages http://www.opengl.org/sdk/docs/man/xhtml/glTexCoordPointer.xml which states that I must set a pointer to the first element of the array that uses the texture cordinate. Here is my array static const GLfloat GUIVertices[] = { //FIRST QUAD 1.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, -1.0f, 1.0f, 0.0f, 1.0f, 0.0f, 0.0f, -1.0f, 0.94f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.94f, 0.0f, 1.0f, 1.0f, 1.0f, //2ND QUAD // x y z w X Y 1.0f, -1.0f, 0.0f, 1.0f, 1.0f, 0.0f, -1.0f,-1.0f, 0.0f, 1.0f, 0.0f, 0.0f, -1.0f,-0.94f, 0.0f,1.0f, 0.0f, 1.0f, 1.0f, -0.94f, 0.0f,1.0f, 1.0f, 1.0, }; But how do I set the pointer correctly? like this glTexCoordPointer(1, GL_FLOAT, 6, reinterpret_cast(29 * sizeof(float)) ); for the fifth element on the 2nd quad first row. any help is thankful

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• Does having a higher paid technical job mean you do not get to code any more?

  - by c_maker

  I work at a large company where technical people fall roughly in one of these categories: A developer on a scrum team who develops for a single product and maybe works with other teams that are closely related to the product. An architect who is more of a consultant on multiple teams (5-6) and tries to recognize commonalities between team efforts that could be abstracted into libraries (architects do not write the library code, however). This architect also attends many meetings with management and attempts to set technical direction. In my company the architect role is where most technical people move into as the next step in their career. My questions are: Do most companies work such a way that their highest paid technical people are far removed from writing code? Is this a natural tendency for a developer's career? Can a developer have it all (code AND set direction?)

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• Particle system lifetimes in OpenGL ES 2

  - by user16547

  I don't know how to work with my particle's lifetimes. My design is simple: each particle has a position, a speed and a lifetime. At each frame, each particle should update its position like this: position.y = position.y + INCREMENT * speed.y However, I'm having difficulties in choosing my INCREMENT. If I set it to some sort of FRAME_COUNT, it looks fine until FRAME_COUNT has to be set back to 0. The effect will be that all particles start over at the same time, which I don't want to happen. I want my particles sort of live "independent" of each other. That's the reason I need a lifetime, but I don't know how to make use of it. I added a lifetime for each particle in the particle buffer, but I also need an individual increment that's updated on each frame, so that when PARTICLE_INCREMENT = PARTICLE_LIFETIME, each increment goes back to 0. How can I achieve something like that?

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• Why would i need extra IP adresses from my web host?

  - by user4524

  I am moving to a new and cheaper host. My old one raised the prices suddenly by a factor 10. Now what I did not like about the old one, was that each time I set up a new website, I had to set up a new account, with the result that I have to pay for a lot of webspace and a lot of bandwith i don't use. Now I am moving over to a new host, who cheaply offers virtual servers. Now I am a n00b when it comes to server tech. I have two questions about this: 1. Could I install all my webistes on this virtual server, provided it is big enough? 2. They offer the possibility of getting more than one IP address, but it costs more. What would be the advantage of this? Would I be able to suffice with one IP address?

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• PCManFM problems: shuts down unexpectedly, would not always start [closed]

  - by cipricus

  In Lubuntu 12.04 beta (final release in a few days). I do not remember doing something outrageous to my PCManFM but now it has has a lot of problems: "extract here" menu action wouldn't work (this problem never disappears) the program shuts without obvious reason making the desktop empty (the program can be started in run (alt-f2) but this does not alway restore the desktop) would not start sometimes from its /usr/share/applications.desktop file (or the "Aplication Launch Bar") although it starts in run (alt-f2) (the last problem is temporarily solved if the program is closed in task manager and than restarted with alt-f2) I have reinstalled it to no avail. Any ideas?

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• Content Weighting and Sociology

  - by Chris Massey

  I’ve had loads of fantastic feedback on the concept and early curation wireframes I posted on the labs, and it’s led to some further thoughts on the topic of voting. More specifically, thoughts about the kinds of behaviour and values a platform encourages in it’s users via the set of available actions. StackOverflow is a very good example of this kind of sociology in action, not only via the set of available actions, but through the reputation system it uses to both reward and control it’s users. In our case (specifically, in the case of the curation model I’ve been talking about thus far), the main considerations are how the quality of content is judged, and how to make sure each piece of curated content gets a fair hearing. Based on the feedback and conversations I’ve had with many of you over the last few days, a few considerations came to light about how we might need to weight and display our curations, and I’ve written about that more extensively over on the labs themselves – have a read and let me know what you think.

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• Unable to Install [closed]

  - by Rajesh

  I have been trying to install Ubuntu on my PC for some time now. I tried wubi, but am unable to get it right. Then, I downloaded the ISO and tried to install it on an empty without partitioning, but the keyboard acts wierd and goes on typing automatically one particular letter that was typed while trying to enter IPv4 settings (2222222222 or ............, etc...) and also I get an error about some fsyncing\sdk\resourses something like that. Please help me. UPDATE: I managed to install it but I get a blank screen after logging in. Just the wallpaper shows up! Help me.

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• Can't open Minecraft with java

  - by Shingaling

  I know this has been asked here before, but none of the solutions have worked for me. I have a fresh install of Ubuntu 12.04 on my system and I installed Open Java 7 and I downloaded Minecraft. I right clicked Minecraft went to properties and set it as an executable and then went to open with and Java is no where to be found in the list. I made a new Java desktop file in /usr/share/applications and now when I go to the list Java is there and I set Minecraft to open with it by default but when I open it nothing at all happens. Now how am I supposed to get Minecraft to work?

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• How do I use Brasero to burn a movie in DVD format?

  - by Switchkick

  I have to present an assessment for my Uni course in the form of a DVD movie (so it can be played on a DVD player) but so far, Brasero doesn't seem to be doing it. For example, I left it for over an hour today (as it said it was burning) and the DVD came out empty. Other times, it flat out says it cannot burn the DVD. I am running Ubuntu 10.10, I have ubuntu restricted extras installed and the Medibuntu packages that allow me to watch DVDs. Any ideas?

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• UbuntuOne: how to sync folders on different partitions (symlink?)

  - by user37155

  I use Ubuntu One to synch my home/Documents folder among more computers. On a portable tablet I have set the Documents folder in a separate Fat32 partition named sda6, and I made it default documents folder with Ubuntu Tweaks. How do I synchronize it with my /Documents cloud ? I tried to link /sda/Documents in my home folder but it didn't succeed: UbuntuOne still tries to set an own Documents folder and doesn't let me sync the linked folder with the cloud. What can I do, would please anyone help me ? Greetings, Francesco

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• Fluent MVC Route Testing Helper

  - by Nettuce

  static class GetUrlFromController<T> where T : Controller     {         public static string WithAction(Expression<Func<T, ActionResult>> expression)         {             var controllerName = typeof(T).Name.Replace("Controller", string.Empty);             var methodCall = (MethodCallExpression)expression.Body;             var actionName = methodCall.Method.Name;             var routeValueDictionary = new RouteValueDictionary();             for (var i = 0; i < methodCall.Arguments.Count; i++)             {                 routeValueDictionary.Add(methodCall.Method.GetParameters()[i].Name, methodCall.Arguments[i]);             }             var routes = new RouteCollection();             MvcApplication.RegisterRoutes(routes);             return UrlHelper.GenerateUrl(null, actionName, controllerName, routeValueDictionary, routes, ContextMocks.RequestContext, true);         }     } I'm using FluentAssertions too, so you get this: GetUrlFromController<HomeController>.WithAction(x => x.Edit(1)).Should().Be("/Home/Edit/1");

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• Trying to retrace our SEO domain redirect strategy

  - by dans

  An SEO built a copy of my company's e-commerce site on another domain that contained our product's keywords in the name (i.e. as if Levi's built a duplicate site on bluejeans.com)...and then they referenced a lot of the images on the actual website from the other domain (as if Levis.com had images on it referenced like: img src="http://www.bluejeans.com/jeans-front.jpg"), but when you tried to reach the site by typing the name into the browser you would be redirected to the regular website, so the site wasn't really used for any purpose except I guess SEO. Since I didn't think this was doing anything GOOD for us at the time, I deleted the duplicate site and let the hosting on it expire, only to watch our search engine position rankings fall dramatically. Any ideas as to what was going on there? I want to get it back to understand its impact, but I don't know how it was set up. I contacted our host and they have no idea how it was set up. I suspect there was some sort of redirect in play, or something?

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• How can I make Liferea to open links in the background?

  - by sup

  I have Opera set as my default browser but it is the same for Firefox. When opening a link in Liferea, the link open in an external browser and the browser gets focus. I would like to open the links in background (so that the browser does not get focus). The only solution is to set Focus prevention level to Normal in the Focus & Raise Behaviour tab of General options in CCSM. But this messes things for other things. DO you have any other idea? I am using Unity on 11.10.

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• System doesn't boot due to a "[drm: drm_crtc_helper_set_config] * error * "

  - by Albin

  I have a problem with the new Ubuntu 12.10. It finished installing correctly, but when I restart my computer an error message appears: [15.854296] [drm: drm_crtc_helper_set_config] * error * failed to set mode on [CRTC: 10] * checking battery state [17.814209] [drm: drm_crtc_helper_set_config] * error * failed to set mode on [CRTC: 10] and that screen does not advance. I also tried booting from the recovery mode and it starts, but it's too slow loading windows and also shows me a window with an error message: Sorry Ubuntu 12.10 has experienced an internal error More Details: Executable path /usr/bin/xorg I have used Ubuntu since the 2008 version and never had this problem. I hope you can help me. Computer Specs: compaq sr2015la AMD sempron 2Gb. RAM 80Gb Hard Drive Translated from the original Spanish

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• How to transfer a windows disk, to another partition? (details within)

  - by TardisGuy

  So i have a new SSD... and its like... SOOO fast (but tiny, 128Gig). But it seems to be WAY faster in linux. (bonus: whats the best Filesystem?) Now, am i correct in assuming that if I Gparted copy paste the {Boot MSreserved_][__NTFS___] in to (1st Empty space, same partition) and it will be bootable right? Oh and... how do I disable "Journaling" i read that I should do that. Feel free to link any additional mods/apts/hacks/tweaks

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• Algorithm for determining grid based on variably sized "blocks"?

  - by Lite Byte

  I'm trying to convert a set of "blocks" in to a grid-like layout. The blocks have a width of either 25%, 33%, 50%, 66%, or 75% of their container and each row of the grid should try to fit as many blocks as possible, up to a total width of 100%. I've discovered that trying to do this while leaving no remaining blocks in the original set is very hard. Eventually, I think my solution will be to upgrade/downgrade various block sizes (based on their priority or something) so they all fit in to a row. Either case, before I do that, I thought I'd check if someone has some code (or a paper) demonstrating a solution to this problem already? And bonus points if the solution incorporates varying block heights in to its calculations :) Thanks!

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• Random Cache Expiry

  - by mahemoff

  I've been experimenting with random cache expiry times to avoid situations where an individual request forces multiple things to update at once. For example, a web page might include five different components. If each is set to time out in 30 minutes, the user will have a long wait time every 30 minutes. So instead, you set them all to a random time between 15 and 45 minutes to make it likely at most only one component will reload for any given page load. I'm trying to find any research or guidelines on this topic, e.g. optimal variance parameters. I do recall seeing one article about how Google (?) uses this technique, but can't locate it, and there doesn't seem to be much written about the topic.

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• Is there a way to forward emails associated with a domain without a mail server?

  - by MeltingDog

  A client owns example1.com but wants to also purchase example2.com and have it point to their original site at example1.com. No problem there. But they also want any emails going to example2.com to be forwarded to their counter parts at example1.com Eg: if someone emails [email protected] it will be forwarded to [email protected] They only way I can think of doing this at the moment is to set up host for example2.com and then set up mail forwarders in cpanel. But this seems a bit excessive and costly. Does anyone know another, cheaper way of doing this?

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• No Sound via HDMI

  - by Goony Hill

  I have ubuntu installed on a Acer aspire revo 3700 intel atom processor with nvidia ion graphics this is plugged into a celcus 32 inch TV via HDMI (1080p). The video driver shows as an nvidia which I can select. I have set the sound to play via HDMI and the output to HDMI but get no sound. I have tried a sony 1080i TV with the box but get eratic results with the graphics, but the sound picks up straight away that is there is no need to select it. The graphics on the celcus TV work but I get a dialog box showing loads of different resolutions and frequencies which I have to close manually, these appear to be attempts to set different resolutions for the TV. Am I missing some sort of screen/sound driver, if so does anyone know what might support the celcus 32 inch (1080p) tv?

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• Long lines of text in source code [closed]

  - by ale

  Possible Duplicate: Is the 80 character limit still relevant in times of widescreen monitors? I used to set a vertical line set at 80 characters in my text editor and then I added carriage returns if the lines got too long. I later increased the value to 135 characters. I started using word wrap and not giving myself a limit but tried to keep lines short if I could because it took a lot of time shortening my lines. People at work use word wrap and don't give themselves a limit.. is this the correct way? What are you meant to do ? Many thanks.

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• Unable to connect FileZilla to ubuntu ec2

  - by user1775063

  I have a micro ubuntu instance on ec2. I have done a passwd to set it to simple password. I have installed vsftpd on the ec2 instance. And imported the ec2 pem file via FileZilla-Settings-SFTP, and configured vsftpd.conf with following listen=YES anonymous_enable=NO local_enable=YES write_enable=YES local_umask=022 dirmessage_enable=YES use_localtime=YES xferlog_enable=YES connect_from_port_20=YES secure_chroot_dir=/var/run/vsftpd/empty pam_service_name=vsftpd rsa_cert_file=/etc/ssl/private/vsftpd.pem local_root=/home/ubuntu pasv_enable=YES pasv_max_port=12100 pasv_min_port=12000 port_enable=YES I am using username ubuntu, password that_i_set, port 21. I get the following error Error: Critical error Error: Could not connect to server

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• How would you tackle a pattern-finding program?

  - by Neil

  Just to be clear, I don't think this should be question better suited for stackoverflow.com simply because there's not a single answer but a wide range of possible solutions, making this question far more subjective in nature. I was curious how you guys would tackle a pattern-finding program, which is to say I'd do the following operations: I enter in some input. Program predicts my next input based on all previous inputs. Rinse. Repeat. Since the amount of input I could provide is so varied, including empty strings, conventional means such as switches or regular expressions are out, since it would require you to have an inkling of information about what to expect. I was thinking about some form of genetic algorithm, yet even then I don't have a clue as to how to approach a problem of this caliber. I think some feedback mechanism would be necessary as well as to let the program know how close it was. Anyone had to do a similar type program before?

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