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  • How to log out with a command in a gnome-less environment?

    - by octosquidopus
    I installed various window managers (Awesome, dwm, etc.) from which I am not able to log out back to the login screen (gnome-session) in order to switch to another window manager. I need to reboot to do that, which is a waste of time. Question How can you log out via the terminal? didn't work.. dbus-send --session --type=method_call --print-reply --dest=org.gnome.SessionManager /org/gnome/SessionManager org.gnome.SessionManager.Logout uint32:1 ..neither did this: gnome-session-save --force-logout ..nor that: gnome-session-quit --force-logout they all returned: Failed to call logout: The name org.gnome.SessionManager was not provided by any .service files Is there a quick way to log out back into Gnome's session manager from a non-Gnome desktop manager using a terminal emulator? I know that CTRL+ALT+BACKSPACE can be configured to restart X, but I'm looking for the easiest way to log out.

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  • How do I get the Grub menu back after installing Windows on a separate disk?

    - by Shazzner
    Tried sudo grub-install on sda1 but it complained about being a BAD IDEA. I had to install windows for a work related issue so I used a separate disk (I had used it for ubuntu on this computer, but bought a bigger disk so installed ubuntu on that and left the old one in in case I needed an old file). Windows installed fine but overwrote Grub. So if I choose the Ubuntu disk to boot first in BIOS I get a blank screen. I googled and followed this advice: https://help.ubuntu.com/community/RecoveringUbuntuAfterInstallingWindows However, when I get down to this section: sudo grub-install --root-directory=/media/0d104aff-ec8c-44c8-b811-92b993823444 /dev/sda1 I get this: Attempting to install GRUB to a partition instead of the MBR. This is a BAD idea… --recheck does nothing. Any ideas?

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  • Hack Fest Going Strong!

    - by Yolande Poirier
    Today was the first day of  the Hack Fest at Devoxx, the Java developer conference in Belgium.  The Hack Fest started with the Raspberry Pi & Leap Motion hands-on lab. Vinicius Senger introduced the Java Embedded, Arduino and Raspberry Pi. Java Champion Geert Bevin presented the Leap Motion, a controller sensing your hands and fingers to play games by controlling the mouse as an example. "Programmers are cooler than musicians because they can create entire universe using all senses" explained Geert In teams, participants started building applications using Raspberry Pi, sensors and relays. One team tested the performance of Tomcat, Java EE and Java Embedded Suite on the Raspberry Pi. Another used built an text animation using a LCD screen. Teams are using the Leap Motion to close and open programs on the desktop and other teams are using it as a game control. 

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  • UIView with IrrlichtScene - iOS

    - by user1459024
    i have a UIViewController in a Storyboard and want to draw a IrrlichtScene in this View Controller. My Code: WWSViewController.h #import <UIKit/UIKit.h> @interface WWSViewController : UIViewController { IBOutlet UILabel *errorLabel; } @end WWSViewController.mm #import "WWSViewController.h" #include "../../ressources/irrlicht/include/irrlicht.h" using namespace irr; using namespace core; using namespace scene; using namespace video; using namespace io; using namespace gui; @interface WWSViewController () @end @implementation WWSViewController -(void)awakeFromNib { errorLabel = [[UILabel alloc] init]; errorLabel.text = @""; IrrlichtDevice *device = createDevice( video::EDT_OGLES1, dimension2d<u32>(640, 480), 16, false, false, false, 0); /* Set the caption of the window to some nice text. Note that there is an 'L' in front of the string. The Irrlicht Engine uses wide character strings when displaying text. */ device->setWindowCaption(L"Hello World! - Irrlicht Engine Demo"); /* Get a pointer to the VideoDriver, the SceneManager and the graphical user interface environment, so that we do not always have to write device->getVideoDriver(), device->getSceneManager(), or device->getGUIEnvironment(). */ IVideoDriver* driver = device->getVideoDriver(); ISceneManager* smgr = device->getSceneManager(); IGUIEnvironment* guienv = device->getGUIEnvironment(); /* We add a hello world label to the window, using the GUI environment. The text is placed at the position (10,10) as top left corner and (260,22) as lower right corner. */ guienv->addStaticText(L"Hello World! This is the Irrlicht Software renderer!", rect<s32>(10,10,260,22), true); /* To show something interesting, we load a Quake 2 model and display it. We only have to get the Mesh from the Scene Manager with getMesh() and add a SceneNode to display the mesh with addAnimatedMeshSceneNode(). We check the return value of getMesh() to become aware of loading problems and other errors. Instead of writing the filename sydney.md2, it would also be possible to load a Maya object file (.obj), a complete Quake3 map (.bsp) or any other supported file format. By the way, that cool Quake 2 model called sydney was modelled by Brian Collins. */ IAnimatedMesh* mesh = smgr->getMesh("/Users/dbocksteger/Desktop/test/media/sydney.md2"); if (!mesh) { device->drop(); if (!errorLabel) { errorLabel = [[UILabel alloc] init]; } errorLabel.text = @"Konnte Mesh nicht laden."; return; } IAnimatedMeshSceneNode* node = smgr->addAnimatedMeshSceneNode( mesh ); /* To let the mesh look a little bit nicer, we change its material. We disable lighting because we do not have a dynamic light in here, and the mesh would be totally black otherwise. Then we set the frame loop, such that the predefined STAND animation is used. And last, we apply a texture to the mesh. Without it the mesh would be drawn using only a color. */ if (node) { node->setMaterialFlag(EMF_LIGHTING, false); node->setMD2Animation(scene::EMAT_STAND); node->setMaterialTexture( 0, driver->getTexture("/Users/dbocksteger/Desktop/test/media/sydney.bmp") ); } /* To look at the mesh, we place a camera into 3d space at the position (0, 30, -40). The camera looks from there to (0,5,0), which is approximately the place where our md2 model is. */ smgr->addCameraSceneNode(0, vector3df(0,30,-40), vector3df(0,5,0)); /* Ok, now we have set up the scene, lets draw everything: We run the device in a while() loop, until the device does not want to run any more. This would be when the user closes the window or presses ALT+F4 (or whatever keycode closes a window). */ while(device->run()) { /* Anything can be drawn between a beginScene() and an endScene() call. The beginScene() call clears the screen with a color and the depth buffer, if desired. Then we let the Scene Manager and the GUI Environment draw their content. With the endScene() call everything is presented on the screen. */ driver->beginScene(true, true, SColor(255,100,101,140)); smgr->drawAll(); guienv->drawAll(); driver->endScene(); } /* After we are done with the render loop, we have to delete the Irrlicht Device created before with createDevice(). In the Irrlicht Engine, you have to delete all objects you created with a method or function which starts with 'create'. The object is simply deleted by calling ->drop(). See the documentation at irr::IReferenceCounted::drop() for more information. */ device->drop(); } - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view. } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); } @end Sadly the result is just a black View in the Simulator. :( Hope here is anyone who can explain me how i draw the scene in a UIView. Furthermore I'm getting this Error: Could not load sprite bank because the file does not exist: #DefaultFont How can i fix it ?

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  • Not able to create screenshot of when menu is active [closed]

    - by gotqn
    Possible Duplicate: Screenshot of active window doesn’t work I am using Ubuntu 12.04 and I am searching for a program that will let me to do screenshot of my menus too. Also, it will be very useful if I am able to "cut" only part of the new screenshot and save it as a new image. At this moment, when a menu is shown (for example I click on my clock and the calendar is shown) the "print screen" button is not working. This happens to with applications launchers menus in the left navigation panel. On windows I am using Gadwin Pro. Is there any alternative on Linux?

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  • Toshiba Satellite a300 with Maverick keeps crashing.

    - by Martin
    I just installed 10.10 on my girlfriends Toshiba Satellite a300 and for about two days it has been working just fine for two days but today it started acting pretty wonky. Several times over the machine just dies as if it didn't have a battery and someone yanked out the power supply. After such a crash I'll have to wait a while before powering it up again or it will die before it even reaches the startup screen. It sort of seems like it's reacting to something I do. I kept it on for several hours while we were out of the house and it was still fine when I came back. I haven't been doing anything I can imagine is especially CPU-intensive when the crashes occur, but I have been trying to set up her iPod with Rythmbox and / or Banshee. If anyone can point me in the right direction I'd be very grateful.

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  • Boot delay and mouse lag at login after Ubuntu 12.04 update

    - by Roshan George
    I am facing these weird problems after updating Ubuntu 12.04 with apt-get update && apt-get upgrade: It takes too much time to come to the Plymouth theme after selecting Ubuntu from the grub menu. Is it possible to correct this? On the login screen, before entering the password, whenever I move the mouse, it is kind of lagging/stuck. Only after entering the password and pressing Enter, it works normally. I think this may be because of the updated kernel. If so, is it possible to downgrade the kernel to the previous one ? If that is not the reason, what can be the problem?

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  • Blender 2.63a window position unstable with dual monitor extended desktop

    - by Steve Smith
    I have two 1920 x 1200 HP monitors and running Ubuntu 12.10. If I set them up as an extended desktop, (both 1280 x 1024 positioned for 2048 x 1280, all my applications work fine EXCEPT Blender (even Inkscape). Blender works great on a single monitor but always defaults to a window size that uses all available real estate and it can't do that with 2048 x 1280. It launches, but jumps all over the screen. Does any know a way to start Blender in a fixed size window so it would run in just one monitor?

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  • HP 6735s Brightness hotkey problem; where is brightness panel?

    - by Paul
    I have installed ubuntu 11.10 on my laptop hp 6735s. The screen is often too dark and i want to make it brighter, although the hotkeys Fn+F7/F8 are not working. I have tried some things: Firstly it appears that sometimes they are in fact working, after reboot they either work and continue to do so or they don't. I've read about a brightness applet; but where can i find or install it? I have tried some grub options; acpi_osi=Linux and acpi_backlight=vendor but nothing changes. I don't want to add another question but since it might be related: my laptop also gets quite hot, i'm having doubts whether ubuntu connects to the available sensors and cooling plans (or how does it work???); sensors (or psensor) only shows 2 sensors both named temp1. Any help is greatly appreciated! Paul

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  • Make Your Own Windows 8 Start Button with Zero Memory Usage

    - by The Geek
    After using Windows 8 for a while, I’ve come to the conclusion that removing the Start button from the Taskbar was a huge mistake. Here’s how to make your own “Start” button that brings up the Metro Start screen—but doesn’t waste any memory at all. What we’ll be doing is pretty simple—create a script that simulates pressing the Windows key button, make it into an executable, assign an icon, and pin it to the taskbar so that it sorta looks like the Start button, and works the same way. Since nothing is running, no RAM is wasted. Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos HTG Explains: What Can You Find in an Email Header?

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  • Toshiba Tecra A8 display resizes to 4:3 when an External display is used

    - by Pete
    I am very new to this so please excuse me if the solution is simple. I am running an old Toshiba Tecra A8 laptop and the screen is fine until I attach an external monitor via VGA then the laptops monitor resizes itself and changes ratios to 3:4 is there a fix for this or am I out of luck? As additional information: I have tried 3 or 4 different monitors and it happens with all of them, except that the external monitors hold the 3:4 display ration but get stretched out. Feel free to add comments requesting more information if needed for a fix.

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  • Scrollbars: A Retrospective

    - by Jason Fitzpatrick
    It’s easy to overlook the humble scrollbar, a much used but hardly thought about user interface element. This graphic compares scrollbars over the last thirty years. Some of the more modern Windows incarnations are missing but, on account of the Vista/Windows 7 scrollbar looking pretty much like a gray version of the XP one, we’ll forgive them. A full resolution version of the image is available at the link below. Scollbars Through History [via Geeks Are Sexy] How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7

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  • Installing Ubuntu Server 11.04

    - by Jackson Walters
    Trying to install Ubuntu Server 11.04 on an 64-bit AMD machine. The install goes fine until after "Loading additional components", then I get a blank purple screen with a responsive cursor at the bottom. I've looked everywhere and can't find anything (all the documentation seems to be on the desktop version). I have a wireless card installed if that makes a difference, don't why it would. This happens regardless of whether nomodeset is set. Here's what it looks like (as described): Specs: CPU - 64-bit AMD Sempron 140 @ 2.7Ghz RAM - 1Gb DDR3 1333 HDD - WD 500Gb 7200RPM SATA 3.0Gb/s Mobo - Foxconn M61PMP-K Wireless Card - Rosewill RNX-G300LX

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  • Ubuntu 12.10 live-usb won't boot

    - by user109175
    I own an Aleutia "Tango" low power PC. It uses a Intel Atom CPU N2800 @1.86GHz processor. I know there are Linux issues with the "Cedar Trail" graphics on this hardware but I can happily run Ubuntu 12.04 using the VESA graphics driver. I wanted to try out Ubuntu 12.10 so I created a live USB under 12.04 but I am unable to get this to boot. It gets as far as the Grub screen but after that the monitor shuts down. I have tried the F6 "nomodeset" option but that doesn't make any difference. Does anyone have any knowledge of this problem? Thanks in advance.

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  • First time user here

    - by Brian
    Never used Linux before but I decided I want to start somewhere and Ubuntu seemed like the right place to start. I burned the 64bit version iso onto a CD and installed it onto a fresh new hard drive I got and it installed nicely or so I thought. First major problem was the fact that the screen slip oddly, second when I tried to log in everything just kind of froze, I could still move the cursor but thats it. I'm not too tech savy but I can follow instructions and any help given would be greatly appreciated. I am considering dual booting it with my other hard drive that has windows 7 on it but I'm afraid I might mess that up, plus if I do it that way I wouldn't know how to get rid of Ubuntu if I decide its not for me.

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  • Lubuntu 13.04 Resolution Issue du to ppa makson96

    - by Choupa
    I've installed Lubuntu 13.04 on my notebook. (It's the first time I use Lubuntu) I had graphical issue, apparently due to the graphic driver (ATI Radeon Xpress 1200) I followed this procedure to correct my problem : sudo add-apt-repository ppa:makson96 sudo apt-get update sudo apt-get upgrade sudo apt-get install fglrx-legacy My graphical issue has been corrected but now it shows a low resolution (1024*768) and I can't change it. the xrandr result : xrandr: failed to get size of gamma output default Screen 0: minimum 1024x768, current 1027x768, maximum 1024x768 default connected 1024x768+0+0 0mmx0mm 1024x768 0.0* I've already read this topic but I don't really understand how things work there. I'd really appreciate your help ! Many thanks !

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  • Using components in the XNA Game State Management example?

    - by Zolomon
    In the game state management example at the App Hub, they say that if you want to use components in the example you can extend the GameScreen to host other components inside itself. I'm having a very hard time trying to tie this up. I tried extending the GameScreen class by adding a public property of public List<DrawableGameCompnent> components { get; set; } and then add my components to that list when I initialize the current screen as well as looping over the components in the LoadContent, Update and Draw methods. However, this doesn't feel like the correct way to go - mainly because it doesn't work when I get to the implementation of my GameplayScreen. Any thoughts?

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  • Gnome 3 panel and menus are all gone?

    - by Hannes
    I am running Ubuntu 11.10 using gnome 3 shell. I have set my pc to automatically log into gnome shell so I do not see the login screen. Today I installed some updates and now the gnome panel is gone. When my pc logs in I ONLY see the background. There are no menus, nothing! Even the exit, minimize and maximise buttons in the top tight corner of the windows are gone. Also, alt+f2 also does not work. Any ideas how to fix this? I have a Nvidia Geforce 7900GTO with the Nvidia proprietary drivers installed. I have also used the recovery mode and removed some packages that apparently were broken. Still does not work.

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  • access denied when trying to open terminal on desktop

    - by chris
    ok so heres the skinny. I just moved some file using the sudo su command so i can move them to bin folder in file system then after closing terminal tried to reopen from desktop and got permission denied. I then rebooted and now i cant access my account and when trying to login it starts to boot then back to login screen. I then boot up in xterm and i get this message bash: /home/chris/.bashrc:Permission denied. I'm currently running xubuntu 10.04 and would like to get back in to that user. Can someone please help me. Not a noob but close to it. Thanks to anyone who helps and the quicker the better.

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  • How do I get unity back?

    - by Siva
    I got the latest driver software for my old ATI Radeon 4600, and it had me restart. My screen was then just a big terminal! I could log in, but when I typed 'unity' into it as a command, it said something about DISPLAY not found; set it to :0 (zero). I don't know enough about Linux to deal with this. I am using a DSL live CD to ask this. I looked at similar questions suggested, even searched. If my question's a duplicate, I apologise, but I didn't understand what I saw there. T_T

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  • Unity greeter background not changing for users automatically after upgrade

    - by bioShark
    I have recently upgraded from 11.10 to 12.04. Normal upgrade, no new installation. In 11.10 I was using Simple LightDM Manager tool to set a custom wallpaper on the login screen. This tool unfortunately doesn't seem to do anything since I have upgraded. I have also heard that 12.04 is suppose to have this feature (changing login wallpaper per different user) by default. I have searched in settings but unfortunately in vain. So, to keep it short, could somebody direct me to the option(s) page where I can make the desired changes.

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  • Booting 11.10 from USB stick on MacBook Pro 5,1 fails

    - by Helge Stenström
    I've created a bootable memory stick on a Windows computer, and tested it on an HP PC. It's made from a 64-bit image of Ubuntu 11.10, downloaded from http://www.ubuntu.com/download/ubuntu/download. When I boot from this memory stick, there is some kind of boot menu, where I can choose to run Ubuntu from the memory stick, or install. I select Run from memory stick. (the words may be wrong here, I'm taking it from memory.) From this point, the screen is black (but backlighted), and I can't do anything but turn off the computer. It gets hot, too. Has anyone been more successful than me? Are there known issues? The computer is a 15 inch MacBook Pro 5,1 (unibody, late 2008), 4 GB memory.

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  • When Your ASP.NET MVC Custom Error Doesn't Render...

    You've put [HandleError] on your controller and you've set <customErrors mode="On"> in the web.config file. So why do you still see the yellow screen of death? I've heard various wrong explanations for this phenomena, including "it only works under IIS" and "it only works in release mode". But the custom error view does work in debug mode and it does work with the Visual Studio WebDev web server. I think the most common reason for the error view not to display is because the error view throws...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • After reinstalling ATI graphics drivers, my keyboard and mous aren't working anymore

    - by Lifelike27
    On Ubuntu 11.04 I tried to install the open source drivers for my laptops ATI Mobility Radeon 5470M but I messed that up a bit and lost xserver. Now I've managed to solve that problem with this and by downloading the ATI proprietary drivers and install those manually. Now, when Ubuntu loads up I get to the login screen but I can't use my mouse or my keyboard (usb keyboard and mouse doesn't work either). If I use the recovery console, then login with that and then run 'startx'. I can login fine (though Unity doesn't show, the graphics seem to be working because it shows the fading animation of libnotify), but I can't type or move my mouse.

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  • Is there a way to emulate pinch-zoom?

    - by aking1012
    I'm looking for a way to emulate pinch zoom in either an android emulator(android SDK-less desirable) or a (preferred) native Ubuntu web browser that I can resize to a specified size for initial testing of HTML5 applications. This is would be useful for first round testing during cross-platform application development. Note: I'm trying to do this with no real touch-device only a mouse. So the best answer would be something like "Install this chromium plug-in and use this hotkey to set pinch points" or something similar. We already have this for getting dual mouse working(thanks AmithKK). The browser that supports multi-touch is the hard part. Something to note is that I start getting screen artifacts using multiple mice via that guide. They're mild and tolerable, but they are there.

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