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• Can't set 1280x1024 with Nvidia Geforce 8400 GS

  - by torbengb

  I've just installed 10.04 LTS using the Windows installer. The system hangs during boot; the splash screen is frozen and it accepts neither Ctrl+Alt+F2 nor Ctrl+Alt+Del, only a hard reset. (I'm a linux noob.) When I edit the default Grub boot option to omit quiet splash, it gets to the point saying * setting sensors limit [OK] _ and there it stays. I can only get to the desktop using the Grub recovery boot option, of course with a lower resolution (800x600) but everything else seems to work fine. As I said, this is a new install. The only thing I've done is to use the Update Manager to get everything up to date, and activate the newest Nvidia driver using the "Hardware drivers" window. I had a similar problem when I installed 9.04 a year ago, and at that time posted this question with an answer that worked - this doesn't work with 10.04. Running nvidia-xconfig to create a new xorg.conf didn't fix it either (while in Recovery boot).

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• Designing a "Grid" like object that contains game objects

  - by liortal

  I am working on a 2D game, where there's a game "board" on which other game objects are placed. This this is 2D, my starting point was to design a class that will internally use a 2d array for the actual stored game objects. This class could be simply accessed by 2 indices: (i, j) to get game objects on it. My problem is that i have no idea how to make the game "board" "propagate" its data onto its children. Design questions i ran into are: Should the children placed on the board have display properties such as size, screen position? Should the board itself dictate this information? How to update children in case the board changes some of its properties? (position, etc). Should the board be aware of the types of objects stored in it ? I have no idea how similar things such as WPF or other UI frameworks go about organizing a "container like" object that can arrange or apply certain UI properties to its children.

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• Exporting .jar files with Jarsplice

  - by SystemNetworks

  Help! I'm Using Mac OS X 10.8 Mountain Lion and Using Eclipse. I'm using the library called Slick and Lwjgl. When i first exported it, it has a .jar file. I followed some You Tube Tutorials (Different, they don't have slick) It worked for them. I don't know why it dosen't work for me. Should i put Slick-util too? I didn't even use lwjgl btw. Please help!!! Jars I used(Libraries) Slick LWJGL(I didn't use it) Tutorials I followed TheCodingUniverse(Exporting) TheNewBoston(The Code and Set-up) Programs I used Eclipse IDE Java Jarsplice No warnings found or errors. It is perfect! But Nothing shows up in the screen everytime I pressed the jar(After Jarsplice) Help!!!

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• Input Signal Out of Range 1920x1080

  - by Zach

  I've recently installed Ubuntu 12.04 on my computer. Now, every time I boot and when I shut down, my monitor goes blank and says "Input Signal Out of Range - Change Setting to 1920x1080 60Hz." Once the computer gets to the login screen, it's okay again. This problem also happens when I try to open any 3d app. My graphics card is NVIDIA GEforce 6150 SE. I tried updating the drivers, but it broke everything and I had to reinstall Ubuntu. Any help?

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• How can I reconfigure the nvidia proprietary drivers from the command line (ssh)?

  - by Mathieu Pagé

  I have a linux HTPC (running XBMC) in my living room. This morning I ssh'ed into the machine and did upgrade it to 10.10. When it finaly resarted it says something about running in low quality graphics and eventually returned to a command line login prompt. I ssh'ed in again and did a sudo reboot now. When it came back on this time the image is rapidly scrolling from the top to the bottom of the screen. I guess the installed driver doesn't quite work with the S-Video port on which the TV is connected. previously it was working right with the nvidia proprietary drivers. How can I install thoses without using the GUI tool that comes with Ubuntu?

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• Can't disable giant cursors (from accessibility mode)

  - by jackweirdy

  I've just installed ubuntu 12.04 from a livecd. Out of curiosity, I enabled the accessibility options for people who are hard of sight. As you can guess this does the usual stuff of inverting colours, increasing text size and making the cursor larger. Having finished the installation I booted into the new system to find accessibility mode was still installed. From the lightdm login screen I disabled this which switched colours and text size back to default, however it's only the pointer cursor that has gone back to default. To put it another way, the "hand" icon that you get when hovering over a link, the cursor which appears when typing and pretty much every other cursor on the system are still large. I've looked on the Universal Access menu, but there's no option to disable large cursors. I've tried toggling accessibility on and off but to no avail.

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• How can I enable auto-switching HDMI sound on Ubuntu 12.04?

  - by João Ciocca

  I've just installed Ubuntu 12.04 on my Lenovo G550 notebook and decided to test the main thing I use it for, on Windows: watching movies and series on my living room TV. Plugged in the HDMI cable, screen auto-configured nicely - awesome. But the sound is coming through my notebook's speakers, instead of my TV. Searched for almost an hour on Google, found a couple of things - nothing that helped, though. Here are two links that made me sad: Another question on AskUbuntu "a better sounding world" post about HDMI On 2, David says that autoswitching was disabled... so how can I enable it?

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• Thread problem with XNA C#

  - by Luis

  I'm development a network card game, and for now i've two players connected but there is a problem with one of them, this one can't do anything on the game. Looks that screen was blocked. I'm think that is because a code i used before. That code is: if (InvokeRequired) { this.Invoke(new MethodInvoker(delegate { ... })); return; } The code above is surrounding code to changing Button values, make connection with server and create game window. Without this code a warning is shown. InvalidOperationException was unhandled Cross-thread operation not valid: Control 'startGameButton' accessed from a thread other than the thread it was created on.

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• Execure a random command from .txt file?

  - by Alberto Burgos

  I have a Ubuntu server, and I'm trying to print a Twitter quote using the app "twidge". So I made a list of tweets on a .txt file. I want to print one tweet (per line) from that file and send it to Twitter via twidge (or what ever other method was possible). I can print a random phrase with shuf: shuf -n 1 /var/www/tweets.txt and it works. It sends me back one of the tweets, but, it does not send it to Twitter, even if the "in line" phrase is a command. i.e: twidge update "bla bla bla" It just prints on the screen, but don't send it to Twitter. I tried turning the .txt to .sh, but don't work... any idea? by the way, i want to use it with crontab, something like this: 15 * * * * shuf -n 1 /var/www/tweets.txt

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• How can menu bars that require a right click be activated?

  - by Amos Annoy

  I've noticed that NetworkManager only has a single, left or right, click menu and no longer has an About menu option to show it's splash screen. In fact all the top bar mini short cut icons have been amputated and crippled leaving them with no rights. This severely impacts on our custom aps., similar to FireFox bookmarks, which can no longer be right clicked to bring up a context menu. It is possible to disengage FF's File|Edit|... menu bar from the top by running it in safe-mode so the menu bar is resident in a window, restoring right clicks, but our aps. do not have "safe modes". How can right clicks in menu bars be restored? reference

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• Network does not connect at boot

  - by Daniel Svozil

  I am on Ubuntu 12.04, fresh install. When I boot a machine, the boot screen says Connecting to network, later it is changed to something like Did not connect, trying for another 60s. However, the network does not connect at the boot. But I can then log in without a network connection, and if I start a network manager service manually from the terminal (sudo service network-manager start), the network is connected without any problems. Please, does anybody know where the problem could be? I don't want to wait more than two minutes every computer restart :-). I am new to Ubuntu (and also to upstart) so I am a bit lost. There is no /var/log/messages, in dmesg I found this record, though it may not be related: init: network-interface (eth1) pre-start process (492) terminated with status 1 init: network-interface (eth1) post-stop process (548) terminated with status 1 Thanks Daniel

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• How do I fix dragging windows to the adjacent workspace?

  - by Bill O'Dwyer

  I installed CompizConfig-Settings-Manager and I put on all the settings I liked and had in 11.10, including the ability to drag my windows to the adjacent workspace. It's under the Desktop Wall section, on the Edge Flipping tab and I've checked "Edge Flip Move" and "Edge Flip DnD." In 11.10, the movement was smooth between each workspace, and the window would still be "grabbed" in the same place. In 12.04, it's leaving the window behind and the mouse appears to be "grabbing" nothing, but I'm still holding onto the window, and I can still move and place it within the workspace (or indeed the previous workspace as it won't appear in the desired place until I drag the mouse all the way to the edge of the screen). Any way to fix this? I'm running 12.04 beta 2.

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• How To Run Two Windows 8 Apps At the Same Time With the Snap Feature

  - by Chris Hoffman

  Windows 8’s Modern interface includes support for running two Windows 8 apps side-by-side. This feature, named “Snap,” isn’t explained in the tutorial – you’ll have to know it exists to make use of it. While the multitasking may be limited compared to Windows desktop multitasking, it’s more flexible than iPad and Android tablets, which can only have a single app on the screen at a time. Note: Snap only works on monitors that are at least 1366 pixels wide. 6 Start Menu Replacements for Windows 8 What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8

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• Cannot Update through Manager or Terminal/ Software Center Does Not Work

  - by BROBA

  I installed Tor a few days ago via the terminal. I deleted some hashtags in the gedit polipo, and changed my proxy settings in chrome, but was unable to make it work and have since changed all of it back. I then downloaded the Tor browser bundle which works great, but ever since then have been unable to download updates or new software. The update manager says to "check internet connection" and the software center displays a mostly blank screen under apps like "rhythmbox" and just says "available from main source" when I click on "use this source" a refresh symbol appears on the upper right corner of the software center for a split second, and then nothing happens. The app does not download and isn't available in the dash. When I try via the terminal it says it's unable to connect to my ip address. I tried changing the server and unchecking all the repository options for software sources, all to no avail. WHAT DID I DO?????

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• Basic game architechture best practices in Cocos2D on iOS

  - by MrDatabase

  Consider the following simple game: 20 squares floating around an iPhone's screen. Tapping a square causes that square to disappear. What's the "best practices" way to set this up in Cocos2D? Here's my plan so far: One Objective-c GameState singleton class (maintains list of active squares) One CCScene (since there's no menus etc) One CCLayer (child node of the scene) Many CCSprite nodes (one for each square, all child nodes of the layer) Each sprite listens for a tap on itself. Receive tap = remove from GameState Since I'm relatively new to Cocos2D I'd like some feedback on this design. For example I'm unsure of the GameState singleton. Perhaps it's unnecessary.

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• Is it possible to design a multiplayer game which can be played from different devices?

  - by user9820

  I want to design a online multiplayer game for all gaming devices e.g. Desktop PC, internet browser, android phones, android tablets, iphone, ipad, XBOX 360 etc. Now my main requirement is that, I want all devices can be used to play the game in multiplayer mode toghether i.e. One player can be connected using PC another using android phone and other may be with iphone or ipad. My doubts are - How to make all devices to connect to common game server? What will be the logic for graphics and texture because all devices screen will be of different aspect ratio?

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• What are good JS libraries for game dev?

  - by acidzombie24

  If I decide to write a simple game both text and graphical (2d) what libraries would I use? (Assume we are using a HTML5 compatible browser) The main things I can think of Rendering text on screen Animating sprites (using images/css) Input (capturing the arrow keys and getting relative mouse positions) Perhaps some preloading resource or dynamically loading resources and choosing order Sound (but I am unsure how important this will be to me at first). Perhaps with mixing and chaining sounds or looping forever until stop. Networking (low priority) to connect a user to another or to continuously GET data without multiple request (I know this exist but I don't know how easy it is to setup or use. But this isn't important to me. Its for the question).

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• How can I tell how a panel item was set up

  - by 4dummies

  I need to do some major surgery on a user account that has somehow sustained configuration damage to the point window decorations are gone, some apps don't listen to the keyboard, etc etc. I run xfce4 sessions. There's a panel on the top of the screen that has applications that I put there once upon a time. I know how to do that, sort of. But I don't remember the details of what I specified. And I'm unaware of an app for the panel that's like the menu editor that lets you see and manipulate an item that's already there. I want to do that because I want to re-do this stuff in a different account. Or possibly do a dotfile transplant on this account and re-edit to include the stuff I'm used to.

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• Proper way to use a RenderTarget2D to draw multiple textures?

  - by TheBroodian

  In the process of trying to resolve a split screen issue, I've been trying to use a RenderTarget2D to draw a portion of my scene to a Texture2D, and then again to another Texture2D, but the end result of both Texture2D's is coming out the same. Can anybody tell me what I'm doing wrong? Texture2D camera1Render; Texture2D camera2Render; GraphicsDevice.SetRenderTarget(RenderTarget); GraphicsDevice.Clear(Color.Transparent); map.Draw(mapDisplayDevice, Camera1, new Location(0, 0), false); camera1Render = RenderTarget; GraphicsDevice.Clear(Color.Transparent); map.Draw(mapDisplayDevice, Camera2, new Location(0, 0), false); camera2Render = RenderTarget; SetRenderTarget(null);

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• Desktop Fun: Moonlit Nights Wallpaper Collection

  - by Asian Angel

  Whether it is our own moon or ones featured in fiction and fantasy artwork, moons can be romantic, mysterious, and inspirational. Now you can add a unique touch of style and flair to your desktop with our Moonlit Nights 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. 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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• "mountall: Disconnected from Plymouth" error in VirtualBox

  - by jonpavelich

  I installed Ubuntu (from the 11.10 Alternate CD, selecting "command-line only" mode before installing) in Virtualbox (Mac OS X Lion host) like I've done numerous times before. Installation finished without any problems, and I rebooted into my new system. Got the splash screen, it loaded, and right where it should've given me a login prompt, I got (in orange) mountall: Disconnected from Plymouth. I can just hit control + alt (option) + F1 to get the login prompt on tty1, and the system acts normally. This happens on every boot. The disk has two partitions, a 250 MB /boot partition and a 99.75 GB encrypted partition. The encrypted partition has LVM on it. One volume group, 3 volumes (swap, / (root filesystem) , and /home. At first I thought the error was from one of the LVM volumes not mounting, but they are all accessible. It isn't a critical error, but it is annoying. Any ideas?

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• eGalax Touchscreen not working Jolicloud 1.2

  - by craigsmith86

  I have an eGalax touchscreen on an Acer Aspire One running Jolicloud 1.2 I have had success getting this touchscreen to work correctly on ubuntu 10.04NBR, 11.04 and Kubuntu 12.04 and Puppy Linux, so I am pretty happy with how it SHOULD be done. However, I cannot get it to calibrate correctly or remember calibration settings. I have installed the eGalax utility (all available versions) and it does not recognize the screen. Xinput_calibrator works but the config cannot be made permanent. Problems I have identified: -Joli doesn't have an xorg.conf file and does not use xorg.conf.d for evdev configuration -Setting configs through Hal doesn't work anymore The best I can get is a poorly adjusted touchscreen with a reversed Y axis. Any help greatly appreciated

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• How to perform efficient 2D picking in HTML5?

  - by jSepia

  I'm currently using an R-Tree for both picking and collision testing. Each entity on screen has a bounding box for collisions and a separate one for picking. Since entities may change position very frequently, both trees must be updated/reordered once per frame. While this is very efficient for collisions, because the tree is used in hundreds of collision queries every frame, I'm finding it too costly for picking, because it only gets queried when the user clicks, thus leading to a lot of wasted tree updates. What would be a more efficient way to implement picking without as much overhead?

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• Why 11.10 says plymouth errors and "Checking battery state..."?

  - by Aleksi Kinnunen

  I've just installed new Ubuntu 11.10. The installation was successful. But when I start the Ubuntu, the splash screen does not work, and I get error (always some of these) "mountall: Plymouth command failed", "mountall: Connect to Plymouth was lost" or "Checking battery state..." I'm sorry, if the error messages are incorrect because I translated two first of them from Finnish (my system is in Finnish) to English, so they maybe couldn't be just right. I have already asked from our Finnish community, but they couldn't answer. Could anybody here?

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• Why does my program stutter so much?

  - by user36322

  I've been very frustrated trying to solve this. I've looked it up, and all the answers are the same: set IsFixedTimeStep = false. This doesn't help me at all, the program is still jittery and stutters. I have absolutely no idea what is going on, can you guys help? Code for movement (objects is a list): speed = Math.Min(speed + (speedIncrement * gameTime.ElapsedGameTime.Milliseconds / 200), maxSpeed); for (int i = objects.Count - 1; i >= 0; i--) { objects[i].rect.Y += (int)(speed * gameTime.ElapsedGameTime.Milliseconds); //Check if the object is past the screen. If it is, remove it if (objects[i].rect.Y > screenHeight) { objects.Remove(objects[i]); } }

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