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• How to have an emacs function called when display size changes?

  - by Alex K

  I'm trying to define an emacs function that will be called when the display size changes, currently I'm not finding any hooks that I can use for this. I an NOT trying to notice when the emacs window changes size. My use case is that I have emacs open on my laptop, then I close it and bring it to work and plug it into a bigger monitor and turn it on via the keyboard. After logging in my windows are all in the top left corner. I want emacs to notice the screen size change and call my function allow me to reposition the window and change the font size. yes, I know about stay but I also want to change the font size. I'm running emacs 24.3.1 from emacsformacosx.com under OSX Mavericks

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• Just installed 12.10 with WUBI and get error

  - by John

  Goes to the terminal screen and says: [drm:drm_crtc_helper_set_config] ERROR failed to set mode on 'crtc:10] From what I gather, this is an issue with my monitor. Not sure. I am really new to this. I have a Compaq Presario running XP SP3 and am using a Sony Bravia 32" LCD TV as a monitor. Downloaded Ubuntu from, well,... Ubuntu. Used WUBI to install. I suppose it created its own partition because install never asked. Is there a work-around for this? I have tried everything I know of, given my very limited experience. Thanks in advance.

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• Netbeans 7.0.1 not opening

  - by z22

  I am working in Netbeans on Ubuntu for the last 4 months. But today when I opened Netbeans, it just got stuck in the Ubuntu launcher bar at the left side of screen. I have my project pending in Netbeans (which is not opening). I am stuck in this problem. I also rebooted Ubuntu a number of times, still the same. I can't open Netbeans. Why is this happening? What is the cause of this problem? What should I do? tried $gksu netbeans, nothing happens, $ prompt shown again.

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• External monitor with NO mouse cursor

  - by Csaba Nyerges

  I am using a Fujitsu Siemens Amilo L7310 laptop computer with an external monitor. I'm wishihg to use version 10.04. The problem is, when I plug my laptop into the external monitor with my laptop screen turned either on or off, I do not see the mouse cursor on the external monitor! The mouse cursor is still there, although invisible. If I connect the external monitor to my laptop before swithing both on, the same happens. Is there any solution to make the cursor appear on the monitor?

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• What are some methods for pulling information and interacting with flash games?

  - by Xploit

  In general, how should I approach interacting with a flash game pragmatically? The flash game is online and I would like to be able to pull information from the game, make computations, and send the appropriate keystrokes back to the flash game? I'm having difficult deciding how to begin. Any specific libraries or languages that you feel would be best for accomplishing this task? I would like it to be as fast as possible. Are there ways of doing this without taking screen shots and simulating keyboard presses?

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• Log backups "stalling" on SQL 2008?

  - by MattK

  I have interited a box running SQL Server 2008 and Windows 2003, and have had a few events where largeish (35GB) log backups "stall", both before and after the installation of SQL 2008 SP1. The server log ships to a standby, so regular log backups are taken at 15 minute intervals. However, after an index reorg causes the log to grow to about 35GB (on a DB with about 17GB of data), the next log backup runs to ~95% completion, then seems to stop. The process shows as suspended, with a wait state of BACKUPIO. CPU, read, and write activity on the SPID also does not change, and the process stays in this state for hours, when normally a backup of this size should complete in about 20 minutes. This server has a single RAID-1 volume, thus the source database files and destination backup files are on the same volume. However, I cannot determine if another process is blocking the backup. The backup SPID cannot be killed, and the only way to terminate the log backup and clear the lock on the backup file is to cycle the SQL Server service. There was one event where the backup terminated completely, with an error that another process had locked the backup file, but no details about what that process was. Can anyone suggest a cause or diagnostic process to this situation?

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• personality problem while learning web development [closed]

  - by Lazeera

  I work a lecturer and when I go home I find a lot of free time. The problem is that I spend most of my time in learning about web development. I don't go outside and don't meet people, I'm only in front of the screen drinking 4 cups of coffee (per day) and trying to learn many technologies related to web development. In the last, I don't learn things very well because I'm in a hurry. I know this place is for asking about programming but I want to learn from your experience regarding learning. How do you learn? How many hours do you spend in leaning a day? How can I organize my time so I can learn well and easily?

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• What techniques can I use to render very large numbers of objects more efficiently in OpenGL?

  - by Luke

  You can think of my application as drawing a very large ball-and-stick diagram (or graph). At times, this graph can get very large, where the number of elements even outnumbers the pixels on the screen. Currently I am simply passing all of my textures (as GL_POINTS) and lines to the graphics card using VBO's. When the number of elements outnumbers the number of pixels, is this the most efficient way to do this? Or should I do some calculations on the CPU side before handing everything over to the GPU? If it matters, I do use GL_DEPTH_TEST and GL_ALPHA_TEST. I do some alpha blending, but probably not enough to make a huge performance difference. My scene can be static at times, but the user has control over a typical arc-ball camera and can pan, rotate, or zoom. It is during these operations that performance degradation is noticeable.

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• Mouse Not Detected & Network Not Connected After Installing Ubuntu 12.04 Desktop via Live USB

  - by albus_severus

  I just recently (+- 30 minutes ago) install Ubuntu 12.04 Desktop on my pc (dual boot) via Live USB (i check the "automatically install upgrade" option when installing it). unfortunately, at the login screen after the installation finished (after reboot), i cannot use my mouse! also, an error message occur saying that network connection is not available. but, when i restart again and using the "try Ubuntu without installing" in the Live USB, the problems didn't occur. i tried to googling this but failed to find any solution. and yes, i am totally green on Ubuntu and Linux. so, please, help me on this. thanks in advance.

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• Observer Pattern Implementation

  - by user17028

  To teach myself basic game programming, I am going to program a clone of Pong. I will use the Observer design pattern, with an interface between the input and the game engine. However, I'm not sure what the interface should do. One idea I had was for the input interface to tell the game engine that (e.g.) the screen was clicked, then to let the game engine decide what to do with that information (shoot a bullet, for example). Another idea I had was for the input interface, having caught the mouse click, to tell the game engine to shoot a bullet. Which method would be better for me to use?

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• Native mobile app development - how do I structure my user stories?

  - by richsage

  I'm about to start on a project which will involve developing prototype native mobile apps (iOS and Android initially) as well as a web-based admin interface and an API for these apps to communicate with. We've got a list of stories already drafted up, however a lot of them are in the format: As a mobile user I want to be able to view a login screen so that I can sign into the app If this were targeted for a single platform, I wouldn't see a problem. However, since we're targeting multiple platforms, I'm not sure whether these should now be duplicated eg "As an Android user" or similar. This seems like duplication, but it's work that will need to be completed separately for each platform. This is the first mobile project we've gone native on - previously it was Phonegap and we lumped all stories in under "As a mobile user". Since essentially this was a web-based app wrapped in native code, this didn't present too much of an issue, but I'm conscious that wholly-native apps are a different ballgame!

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• The application compiz has closed unexpectedly

  - by suhaas

  I have installed Ubuntu 12.10 on my desktop. (Pentium 4, 80 GB hard disk, 2 GB RAM, 32-bit CPU.) And I have installed Windows XP. I made a 40 GB partition for windows and 40 GB for Ubuntu. I installed Ubuntu and it said "installation is complete" and asked me to restart. I restarted the PC and logged in. After 1 minute I get a message like this: The application compiz has closed unexpectedly. Then I closed it. After that it just stays in blank screen nothing shows up. What should I do?

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• Bug? Flash of white when changing orientation on iOS Safari [migrated]

  - by Baumr

  What causes the flash of white to the right of a responsive design when changing orientation from portrait to landscape on iOS? Try it on iOS6 Safari: Websites like this don't do it: http://html5boilerplate.com But this one does: http://www.initializr.com Something to do with re-processing (CPU lag) to fit a wider screen? It doesn't happen in Chrome for iOS6... Update: I just removed all img and from my testing site, but it still happens. This seems to happen with a lot of different websites out there. Is it a bug with their code, or a Safari for iOS bug? Others are completely immune to it...

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• Desktop Fun: Ocean Life Wallpaper Collection

  - by Asian Angel

  Our oceans are full of beauty and wonder, a separate world waiting for us to explore its’ mysteries and stir our imaginations. Bring the wonders of the underwater world to your desktop with our Ocean Life Wallpaper collection. Note: Click on the picture to see the full-size image—these wallpapers vary in size so you may need to crop, stretch, or place them on a colored background in order to best match them to your screen’s resolution. What is a Histogram, and How Can I Use it to Improve My Photos?How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is Compromised

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• Unable to empty the rubbish bin

  - by gman

  When I attempt to empty the rubbish bin the preparing window opens but nothing happens. In testing I tried to delete 1 file from the rubbish bin and received a time-out error. No files are removed from the rubbish bin after this. I have added a screen shot that includes a display of system monitor that shows high CPU usage for trash and Nautilus; not sure whether it is related. Click for a full-resolution image. Also, on a separated note, Bleachbit was also freezing on me, which may or may not be related?

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• Stop Windows 7 from accessing or writing to hard drive unless "told" to by me? (More info inside...)

  - by Jeff

  A confusing question, perhaps, but bear with me. I have two internal HDDs set up in a RAID0 array which I use as mass storage. I access the drive very infrequently (once a day at most) and so I have set up Windows 7's power options to turn off idle disks after only 1 minute. This is fine, and the disks are turned off most of the time. However, I notice that Windows sometimes spins up the drives when I really, really don't want or need it to. This causes a 30 second delay as both drives spin up and lock up my system. Some examples of when this happens: 1) When I'm installing something using Windows Installer or Installshield; it seems to me as if they're using the drive with most available free space as the installer cache location... so my big RAID drive has to spin up! Most annoying. 2) Apparently, when I open a Java-based program which resides on my system drive and has nothing to do with my RAID drive! 3) At boot-up and shut-down time. At shutdown the drive spin up only for the computer to immediately shut down! Incredibly frustrating! I've already tried changing the letter of the drive, and at some points have removed the drive letter entirely, which solves the first two issues above. So my question (FINALLY!) is this: is there any way I can mark this drive as being for "storage only", so Windows basically does not see it at all until I actually invoke it somehow? Or is there any way I could set it up so that only specific programs have write access to it? For example, download managers, TeraCopy, etc. etc.? Basically I want it to be a "ghost drive" until I'm ready to use it and to stop Windows from spinning it up all the damn time! Thank you. :)

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• How do operating systems… run… without having an OS to run in?

  - by Plazmotech Binary

  I'm really curious right now. I'm a Python programmer, and this question just boggled me: You write an OS. How do you run it? It has to be run somehow, and that way is within another OS? How can an application run without being in an OS? How do you tell the computer to run, say, C, and execute these commands to the screen, if it doesn't have an OS to run in? Does it have to do with a UNIX kernel? If so, what is a Unix kernel, or a kernel in general? I'm sure OSes are more complicated than that, but how does it work?

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• Ubuntu 12.04 Responsiveness Extremely Slow on Nvidia 8800?

  - by lynxie

  Just installed 12.04... This is the first time I run Ubuntu with the Unity UI, not a pleasant experience. The responsiveness is extremely slow (10s after a mouseclick), the screen flickers, etc, all right after logging in. Switching the display driver from Nvidia current to post-release doesn't help at all. What now? Can't go back, but Ubuntu is useless to me right now. What can I do? (The system is a Intel 4x2.4Ghz with 4Gb RAM and a Nvidia 8800.)

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• How to create a simple side scroller game

  - by D34thSt4lker

  I'm still pretty new to game programming and any tutorial that I have worked with stuck to only games with the initial screen. I want to start creating my own games but there are a few things that I still need to learn. One of them is how to create a game that side-scrolls. For example; Mario... Or ANY type of game like that... Can anyone give me a small example to create something like that. I'm not asking for any specific language because currently in school I am learning javascript but I know some c++/java/processing/objective-c as well. So any of those languages would be fine and I could probably implement it in any of the others... I have been searching for some help with this for a while now but could never actually get any help on it. Thanks in advance!

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• O'Reilly Deal of the day - 10/June/2012 - Introducing HTML5 Game Development

  - by TATWORTH

  Today's deal of the day from O'Reilly at http://shop.oreilly.com/product/0636920022633.do?code=DEAL is Introducing HTML5 Game Development"Making video games is hard work that requires technical skills, a lot of planning, and—most critically—a commitment to completing the project. With this hands-on guide, you’ll learn step-by-step how to create a real 2D game from start to finish. In the process, you’ll use Impact, the JavaScript game framework that works with HTML5’s Canvas element. Not only will you pick up important tips about game design, you’ll also learn how to publish Impact games to the Web, desktop, and mobile—including a method to package your game as a native iOS app. Packed with screen shots and sample code, this book is ideal for game developers of all levels."

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• Customizing Gnome Shell in 11.10

  - by gentmatt

  Since Unity on my old MBP is not that snappy, I really want to change my GUI to Gnome Shell. However, I've really been struggeling with the customization of Gnome Shell. Can you help me with the following: Is is possible to have the dock on the screen all the time? Can I enable 'hot corners' for features like 'scaling' in compiz? Is there a ccsm-like GUI configuration tool? Can I enable wobbly windows in Gnome Shell? How do I change the shortcut for the WIN-KEY to start this 'Gnome-Mission-Control' (by that I mean this thing u see when going to the top left corner). Thank you.

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• Windows 8 on my new i7 Macbook Pro

  - by Bob Hardister

  Using bootcamp I installed Windows 8 on my new Macbook Pro 15" (not a retina screen version), which has OS X 10.8.2, 2.6 Ghz Core i7 with 8 GB RAM.  I followed the simple procedure outlined here. The only problem I had was the wireless device driver wasn't provided. I had to find and download it myself. Even so it only provided 5G not 2G protocol support. I downloaded a Broadcom driver.   I was able to enable the Hyper-V features on Windows 8 and look forward to using VMs. So far so good :)

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• Double X-screens on one monitor

  - by user75226

  I have two monitors connected currently, my laptop display and an old dell monitor. For some reason one monitor (the dell) has double everything (it will make sense when you see the image). I think it came about when one day I tried using separate x-screen instead of just twin view for a specific reason I don't remember why (I was trying to get the Menu bar to show on my laptop monitor instead of the Dell I believe, it only shows up on the left-most monitor it seems) but anyhow I was wondering if anyone can help me fix this issue. Thanks.

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• Xubuntu and other Debian based distros slow

  - by William V

  I have a Compaq Presario SR1950NX desktop computer with the AMD64 3800+ processor and 1GB ram and it seems that Ubunutu, Xubuntu and Lubuntu are all laggy. Things seem to be slow such as clicking on menus and opening programs and the UI renders in peices. When using the browser the system slows down considerably. I ran the TOP command and I do notice that xorg hits 30 to 40 percent cpu when running the browsers. I have tried these distros on a spare P4 machine and it is even worse. As long as I don't have a several things open at one time I can manage to get around although sluggishly. I also notice that I can't get debian based distros to install in 64bit (crtc6 failure) only in 32bit. Can anyone tell me what is it that I might be doing wrong? I have an integrated Nvidia card and have tried several of the recommended drivers which sometimes result in no boot screen upon reboot. Thanks

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• Strange boot problems on 6 month old setup

  - by Balefire

  I've already exhausted my knowledge on this one, so forgive me if this post is a bit long. I built a computer 6 months ago for my wife and it worked fine until last week. Then it randomly shut down and would lock up while trying to boot on the boot screen. I cleared cmos and it allowed me to do startup recovery, but it "failed to fix the issue" so I reinstalled windows on the HD (moving the old install to windows_old). It worked, so I started installing drivers again, but then when I restarted to finalize installations it locked up again. This time, I took the hard drive and hooked it up to my computer, backed up all her files, and then formatted the hard drive before reinstalling it. (again had to clear cmos to let me boot from disk) It installed windows, I installed drivers, and it worked for a few hours but then died during startup again. So, then I got a new HD, cleared cmos, and installed clean again, with the same result as the time before, it worked for a few hours, installed windows updates, then crashed on the 3rd or 4th time turning it on. I decided next to try reinstalling and then going online to see if there were any updates for the BIOS or drivers on the Motherboard, but now I can't get it to even bring up the boot menu, so now I'm just left wondering was it the motherboard, or is it the CPU, or the RAM? The problem was strangely intermittent so I thought it had to be a software issue, since a hardware issue would ALWAYS fail to boot, right? But now it seems to be a hardware issue, because it's not bringing up anything. Any suggestions? System: Windows 7 64-bit 970A-DS3 Gigabyte Motherboard AMD Phenom II X4 955 Deneb 3.2GHz Quad core Proc GeForce GT 430 (Fermi) 1GB Video Card 500W PSU 2 x G.SKILL Ripjaws X Series 4GB 240-Pin DDR3 1600 RAM

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