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• Graphically intensive silverlight design

  - by Rick Hodder

  I'm designing a silverlight application for showing sheet music from a midi file. I want to create a horizontally scrolling musical staff. At my job I maintain a winforms application that is a scrolling Gantt chart of airplane schedules, and it basically has a rows collection, and it maps the left-most pixel and right-most pixels of the control to datetimes. Then the paint method loops through what it determines will be the visible rows, and draws a screen that shows the schedule information between the two dates. Would I be correct in assuming that I would need to something similar in silverlight for my sheetmusic, or would it be better to just create a horizontal scrollviewer containing a canvas that I have drawn programmaticially on. Am I headed in the right direction? I havent seen any articles on designing such a custom control: can you point me at any?

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• compiz hiding unity and all menus

  - by Lennart Guldbrandsson

  After updating to Ubuntu 11.10, I was severly disturbed by Dash and wanted to go back to Ubuntu Classic. So I tried to read up, and found Compiz SettingsManager. In there, I clicked "on" never hide menus. For some reason this made all my menus at the top of the screen (volume, network, my login identity, and shutoff, etc) disappear - as well as the quickstart menu to the left (Unity). I am not very technical, so I have a hard time finding any programs now, and I just got on the internet by clicking on a link in a document, that I was fortunate to have on my Desktop. Without it, I wouldn't be able to ask for help. What I wish for is a) to get back the menu at the top, b) to restore the Ubuntu Classic without the irritating launcher and Dash, c) these two things to not disappear every time there is a new version of Ubuntu. Any help is greatly appreciated.

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• Why doesn't LightDM always doesn't start under XEN

  - by DaedalusFall

  When I use XEN on Ubuntu (12.10), I have a problem that lightdm sometimes doesn't start when I boot up, I have to log in on the TTY and use sudo service lightdm restart, sometimes several times. Some of the time I get a mouse cursor and a blinking underscore in the top left of the (otherwise black) screen, but after restarting lightdm a few times it eventually comes up properly. I've tried this with XEN from the repos (version 4.1), XEN 4.2 built from source, an NVIDIA card and a radeon card (not using fglrx, which I can't seem to make work under XEN), the results are more or less the same. I can't see anything obvious in my Xorg.log, but I'm not really sure what to look for. Anyone had similar problems or luck getting xen working? Thanks in advance.

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• Windows no longer display with proprietary ATI Catalyst drivers

  - by Insomniac

  I recently started having an issue that opening any application would would show nothing on screen. At the time I noticed it I assumed it was an incompatibility between the new 14 update so reinstalled the old 13.10 iso I used originally. I have now tried a range of ATI drivers including the latest and the exact file I installed the first time with the same results. I can only assume then that it is one of the updates applied at some point, but have no idea which one or how I would go about rolling these back or getting earlier versions of packages. Is anyone else getting this issue? The system has 2 ati 6850s installed, not in crossfire. The open source drivers work fine but I need the ATI ones for cgminer to work.

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• How can I handle copyrighted music?

  - by David Dimalanta

  I have a curious question regarding on musics used in music rhythm game. In Guitar Hero for example, they used all different music albums in one program. Then, each album requires to ask permission to the owner, composer of the music, or the copyright owner of the music. Let's say, if you used 15 albums for the music rhythm game, then you have to contact 15 copyright owners and it might be that, for the game developer, that the profit earned goes to the copyright owner or owner of this music. For the independent game developers, was it okay if either used the copyright music by just mentioning the name of the singer included in the credits and in the music select screen or use the non-popular/old music that about 50 years ago? And, does still earn money for the indie game developers by making free downloadable game?

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• Ubuntu only recognizes one partition from multi partitions SD card

  - by Jay Ngo

  Hello everybody, I split my sd card into 2 partitions. When i use usb-card-reader to read my sd card, only the one partition shows up on the screen, the other doesn't. I have run the command "sudo fdisk -l" and the result is the same, only one partition is recognized. But i do believe both partitions of my sd card work fine, because i still can boot my single-board computer with that sd card and run some programms, which are inside that unreadable partition. How can i access both partitions of my sd card? Does anyone know how to solve this kind of problem? I really appreciate your help.

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• Display brightness adjustment not working

  - by nibot

  I have Ubuntu 11.04 installed on a Lenovo Thinkpad T410 laptop with nVidia GT218 display controller. I am unable to adjust the display brightness. Pressing Fn-Home and Fn-End brings up the display brightness on-screen display and the indicated level increases or decreases as it should. But the actual display brightness does not change. Earlier I was able to Ctrl-Alt-F1 over to a text terminal and then do Fn-Home / Fn-End to successfully change the display brightness, and then Ctrl-Alt-F8 back to the Gnome session with the new brightness. But after upgrading to 11.04 the psuedoterminals have disappeared.

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• Zooming options terminology

  - by Mark

  I've come up with 4 different ways to fit an image inside a viewing region, but I'm trouble coming up with names for them. Perhaps someone can suggest some? Fit image in viewing region, do not enlarge if image is smaller Size image so it fits snuggly inside the viewing region (enlarge if necessary) -- the image is as large as possible while still fitting within the viewing region Size image so that it fills the entire viewing region -- the image will be the same size or bigger than the viewing region 1:1 ratio; 1 pixel in the image corresponds to 1 pixel on screen All zooming options maintain aspect ratio. Stretching is just ugly, so it's not an option :)

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• Can SpriteBatch be used to fill a polygon with a texture?

  - by can poyrazoglu

  I basically need to fill a texture into a polygon using the SpriteBatch. I've done some research but couldn't find anything useful except polygon triangulation method, which works well only with convex polygons (without diving into super math which is definitely not something I'm pretty good at). Are there any solutions for filling in a polygon in a basic way? I of course need something dynamic (I'll have a map editor that you can define polygons, and the game will render them (and collision detection will also use them but that's off topic), basically I can't accept solutions like "pre-calculated" bitmaps or anything like that. I need to draw a polygon with the segments provided, to the screen, using the SpriteBatch.

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• Windows 7 can't boot with Ubuntu on different hard drive

  - by dellphi

  I use a dual boot with two hard disks and two OS is Ubuntu 10.04 and Windows 7. Windows 7 installed on the first disk, first partition. Grub is installed on a second hard disk MBR, and Ubuntu installed on an extended partition on a second hard drive. When I select Windows 7 on the Grub menu, the HDD lamp lights up briefly and then black screen on the monitor, with the status of the keyboard is still functioning. Until now (with the default boot from first HDD), I have to press F12 to get into the Grub to run Linux on a second HDD. output of fdisk -l grub.cfg. I want to retain Grub to remain on the second HDD, and Windows 7 could choose from the menu provided by Grub. But I do not get how, I hope anyone can help.

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• Cannot install 14.04 on Dell Inspiron 5447 14

  - by user292121

  I install Ubuntu version 14.04 by use USB stick is a boot devices on DELL Inspiron 5447 14" but it stuck in ubuntu logo. I change to use Linux Mint and it still stuck in the same process is pending in Mint logo. When I change to Linux Mint Compatibility Mode it shown some error meassage. For the stuck screen please see the url below: http://www.image-share.com/upload/2583/266.jpg For the error massage when I try to use Linux Mint can see as below: http://www.image-share.com/ijpg-2583-268.html How can i do next ?

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• Consoles in Ubuntu and automatic upgrade

  - by Muhammad Khan

  So I recently discovered that ubuntu is simultaneously running 6 consoles in addition to the GUI that everybody uses, which can be accessed by pressing Ctrl+Alt+F1 ... +F6 and then the default GUI with Ctrl+Alt+F7. What use can these consoles have when I can just open a terminal in the GUI mode? Also, why is having consoles like this advantageous for computer users; wouldn't a GUI be much more simplistic? Also, running the console told me that I was running a development version of Ubuntu Quantal which is version 12.10. The login screen (correctly?) says that I'm running 12.04 LTS. What does that mean? Thanks everybody!

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• Boot path not found, cannot start OS

  - by Dustin

  My desktop is 12.04 64bit, and it cannot boot from the hard drive anymore. When I attempt to it just is stuck on a blank screen with an blinking dash, and nothing happens. I checked with the bios trouble shoot for problems and it said that no boot path could be found. I do not know why this is happening, but need to fix it because it used to boot up normally. What I need to know is how to fix it. I can boot into a live DVD. Also, there were a few boots I would attempt to boot into a live USB, then it would boot to the hard drive, but that does not work any more. So with the live DVD (it is an 10.04 LTS 32bit), is there any means to correct the boot path from the live DVD? Thank you for your time and answers.

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• Cannot Adjust Brightness on Acer Aspire 5332

  - by Laurens

  I recently installed Ubuntu 12.04 with the Windows installer. It appears to be running fine, however the screen is extremely dull and I don't appear to be able to adjust the brightness... I entered the settings and tried to play with the brightness there, however there is no change in apparent brightness whether it is set to high or low on the menu. I am using an Acer Aspire 5332 with Windows 7 Ultimate. It is worth noting that the original keyboard from the laptop no longer works, so I am using a USB keyboard (meaning that I don't have access to the Fn keys)...

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• OSD desktop-clock that does not get in your way?

  - by YSN

  Hello, is there a clock application, that can be placed on your screen like a widget staying always on top but automatically fades away on mouseover enabling you to click through it on items below, (behaves pretty much like the Ubuntu notifications in that sense). I am aware, that there are screenlets and gdesklets widget apps, but those are buggy, look outdated, and do not comply with the criteria listed above. What I have in mind is a clock that is large, (digital), always visible (on top of all other windows), and does not disrupt your work (e.g. you can still click that scroll bar or button if it is just below the clock, since the clock fades away on hovering). A tool called "OSD-Lyrics" that show lyrics for songs and behaves exactly the way I described above. So it should be possible (and even easier) to do the same with a clock. Thanks in advance, YSN

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• When starting or log off/on, add'l panels show and some panel applets are duplicated

  - by keepitsimpleengineer

  After upgrading to 12.04 Gnome Classic amd64,every time I log on a new additional blank panel appears on the top and bottom panels - which I delete every time. In addition, the default panel applets are duplicated in the original panels. Also the panels in the second screen are empty (in addition to the wallpaper being hidden). Update: As suggested by fossfreedomm I created a new user and the same behavior occurred. I increased the height of the panels (2436) and the added panels did not change. If I don't remove the added panels and log off/on I get still another - they accumulate. If I switch user instead of logoff/logon, the add'l panel do not appear.

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• installed ubuntu 13.04 but no wireless or wired connection available

  - by James

  after having installed ubuntu 13.04 i can not connect to the internet wirelessly or wired? can only connect to internet by using "try ubuntu" via ethernet cable, ive tried seeking help in so many different ways yet getting no positive outcome at all, will someone please explain why i can only connect with ethernet while i have the cd in the tray? ive also tried downloading b43 drivers to connect to the internet but apparently i dont have enough disk space, what is going on here? i have the disk in the tray now at the screen where you can either try or install, if someone could give me a step by step from here it would probably cut out all this hassle of me not knowing whats going on

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• No wireless network recognized on a Dell Vostro 3560

  - by Itai

  I just installed Ubuntu 12.04 along with Windows 7 on the same laptop - Dell Vostro 3560. Now, on Windows 7 I can access to different wi-fi networks. However, when I am logging onto the Ubuntu section (after re-starting my laptop) - an error message appears: Disconnected - you are now offline When I take a look at my network menu (in the upper bar on the screen), I see that no network is found (and I have a few of them in the area. ). I tried to look around but really could not find a concrete practical solution to this specific problem, would appreciate any solution from anyone out there that had this problem and solved it.

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• Week in Geek: Malware-Infected Web Sites Doubled Since Last Year

  - by Asian Angel

  This week we learned how to get spelling autocorrect across all applications on a Windows system, “diagnose DSL hang ups, extract media files from PowerPoint presentations, & restrict IE to a single website”, customize the Ubuntu bootloader screen, get smartphone-style word suggestion on Windows systems, learned what character encodings are and how they differ, and more. Photo by Profound Whatever.HTG Explains: What Are Character Encodings and How Do They Differ?How To Make Disposable Sleeves for Your In-Ear MonitorsMacs Don’t Make You Creative! So Why Do Artists Really Love Apple?

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• How To Create a Personal VM Server

  - by Danish

  I have a personal Ubuntu server at home for my various personal development needs. I often spend time to configure it for various purposes e.g. for serving a blog or my mercurial repositories etc. However, I am getting very interested in pre-packaged linux appliances available e.g. TurnKey linux etc. It takes no effort to get an appliance up and running! I was wondering if I could make my home server into VM server, where I can run multiple VMs for various needs. The server does not have a screen, hence I would like to be able to manage my VMs from the web or console I guess in short, I am asking if its possible to have my own personal, light weight Amazon EC2. If yes, how can I set it up? Is there an Ubuntu derived distro available for this? OR can I install a couple of packages and get this running?

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• This Is the Perfect Solution for Stopping Spam [Comic]

  - by The Geek

  Now that’s one anti-spam solution I’d gladly pay for. I’ll take a 5-year subscription, if you’ve got it! Latest Features How-To Geek ETC How to Recover that Photo, Picture or File You Deleted Accidentally How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin The How-To Geek Video Guide to Using Windows 7 Speech Recognition How To Create Your Own Custom ASCII Art from Any Image How To Process Camera Raw Without Paying for Adobe Photoshop What is the Internet? From the Today Show January 1994 [Historical Video] Take Screenshots and Edit Them in Chrome and Iron Using Aviary Screen Capture Run Android 3.0 on a Hacked Nook Google Art Project Takes You Inside World Famous Museums Emerald Waves and Moody Skies Wallpaper Change Your MAC Address to Avoid Free Internet Restrictions

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• Mouse cursor freezes randomly with Intel GMA 950

  - by Harry

  I'm using Ubuntu 10.10 its installed using Wubi, dual boot with Windows. It's fresh install. Randomly mouse cursor freezes and cant click anything on the screen. I can move mouse but cant click. "It causes when select a text something" So I'm using keyboard to to reboot system. Then it back to normal after reboot. Tried with unplugging-plugging mouse don't work. PC: Asus laptop with Intel GMA 950 graphic card. A4 tech optical mouse. Ubuntu 10.10 completely updated and upgraded. How can I get around this?

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• Why do I get unknown printer error 0xFA on my EPSON Workforce WF-3540 under Ubuntu 12.10?

  - by potofcoffee

  I recently bought an EPSON Workforce WF-3540, which I'm using under Ubuntu 12.10 with the official driver provided by EPSON. I am often printing batches of about a hundred pages, duplex. When I'm doing this, after about 20 pages, I regularly get an error message on the printer screen, telling me the printer encountered unknown error 0xFA, forcing me to turn the printer off and back on. I talked to EPSON about the problem, but they claim they're not supporting Linux and tell me to ask the Linux community about the problem (and possibly another driver?). So this is what I'm doing here... any ideas? Unfortunately, the documentation does not contain any information pertaining to error code 0xFA and the support hotline wasn't able to give me further information, either. BTW, the problem hasn't happened, so far, when I'm printing smaller batches or not using duplex. Whenever the problem happens, there's a page in the printer that's already been printed on one side, so I'm suspecting the problem's connected with the duplexer.

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• Fly Through FIFA World Cup Stadiums Using Interactive Bing Maps

  - by Gopinath

  I’m hearing loads of useful apps on Bing Maps these days. One such interesting application that I saw today is theworldcupmap.com . This nice interactive Bing Maps mash up lets you easily visualize all the FIFA World Cup Stadiums by flying across them. Here is a screen grab of Nelson Mandela Stadium on Bing Maps:   This cool mash up requires SilverLight plugin on your browser, and it can easily installed when you open the site. Check out theworldcupmap.com and have fun Join us on Facebook to read all our stories right inside your Facebook news feed.

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• How do I make Nautilus windows stick for drag & drop?

  - by e-satis

  When you drag and drop a folder with nautilus, you must carefully set both windows on non overlapping areas of your screen, otherwise selecting one folder will bring the windows to the front, hiding the second one. On Windows, doing so will stick the explorer.exe windows to the back and let you drag and drop the folder. I suppose it detect a long click to decide whether or not bring the window to the front. Is that possible with Ubuntu? Now I know that Nautilus now has split panels by pressing F3, but that not handy. Most of the time, you open a folder, THEN decide to copy. With split panel, you must decide, THEN split the panel and go to the right folder.

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