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• Are there Know issues with Ubuntu 11 and socket 1155? acpi=off

  - by James

  Since building my new system I cant get Ubuntu (or any other flavor of Linux) to "run" properly. To boot the live cd I have to "F6" and turn off acpi or the screen halts at a black screen with "boot stuff" written above the blinking curser. When installed I can only boot if I enter repair mode from Grub menu then once in repair mode I choose Boot Normally and it boots to the desktop. Once on the desktop I can "click" (with the mouse) only on one thing...like firefox or "desktop appearance" and the mouse no longer "clicks" on anything else ...its like the computer freezes but the mouse still moves. I end up using the reset button to restart the computer. I was able to update when prompted to do so....but at the end of the update I could not "click" the "finish" and had to use the manual reset button. I have run Ubuntu since v 8... My system specs are: intel i7 2600k ...Graphics disabled in bios... Asus p8z68-v pro.... 16G Kingston HyperX.... 2 EVGA GTX 570 in SLI.... Mouse is a simple Logitech usb Wireless. Ubuntu installed on secondary sata drive.

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• Xubuntu 14.04 with Compton, strange screen tearing, only when playing videos though (advice needed)

  - by LinuxDudester

  Hello beloved community, Yet again I am in need of your great expertise. I ran into a very strange issue and just can't wrap my mind around it. I'm running Xubuntu 14.04 exclusively, with Compton installed. The OS runs great and I have absolutely no screen tearing when I move my windows around, scroll in my web browser, work in Gimp or Photoshop (wine) or even when I play very graphic demanding games, like Metro Last Light, Euro Truck Driver 2 and so on. There's not a tiny bit of tearing to see, but as soon as I play videos, in xbmc, vlc or parole media player the tearing begins (strangely enough this does not apply to youtube videos). I followed all available workarounds on askubuntu and the ubuntu forum,like the 50-xserver-command.conf, startx /etc/X11/Xsession /usr/bin/xbmc-standalone -- -bs or libsdl1.2debian fix and many more, but to no avail. I also tried the Open Source Nouveau display drivers as well, but for some odd reason they don't work so great on my system or at least with my graphics card. Even with Compton installed and configured, I have an extreme amount of screen tearing, as soon as I switch to the proprietary Nvidia drives the screen tearing is gone completely, except for the video playback with xbmc, vlc or parole media player. System info for your reference: OS: Xubuntu 14.04 Linux-x86_64 - Processor: Intel Core i7-4770S CPU @ 3.10GHz - Ram: 16 GB - GeForce GT 750M 1024 MB - Nvidia Driver: 331.38 Has anyone experienced such an odd issue or do you have any advice on how I could fix this? I would appreciate any help! Have a nice day!

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• Transfer page from internal to external

  - by Theo Gulland

  Afternoon all! Currently I have a website with a list of audio products (essentially a search engine for audio deals). http://www.soundplaza.co.uk Once you go to the details page, you can then press the 'view deal' button to go to providers site e.g. = http://www.soundplaza.co.uk/all-deals/113/bookshelf-speakers/acoustic-energy-1 This jump between two sites is a bit harsh and I would like to show a transition page, to simply ease them into another site and not scare them off. Within this tradition page I will have a simple loading gif and some graphics showing that your transferring. QUESTION: What is the best way to send the details (link, product name etc) to this transfer page, to then wait 5 seconds, to then move on to the desired link... this can in NO WAY damage my SEO, if anything rel="nofollow" would be great if possible. Currently I have seen that you can submit form to the transition page, then you can use php sleep and then php header to transfer... however I am not sure if php header will transfer SEO value tot he provider? Any opinions would be great! Thanks

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• Unity Greeter login screen cuts off login options

  - by ammianus

  I have a pretty newly installed Ubuntu 12.04, using Unity. My external monitor is 1920x1080 max resolution. In the Unity desktop itself everything looks great. I have an NVidia graphics card. When I start my computer and get to the Unity greeter login screen the display is oddly formatted and the resolution seems off. It looks like a zoomed view on the larger 1920x1080 screen. As such it crops the login options off to the left hand side of the screen. So I can only just see the edge of the password box for the user I want to log in with. I can log in with one account by default by blindly typing the password, but I am unable to switch to other accounts. Is there anything I can do to fix the log in screen display so that I can see the normal login options? Note: I first noticed it when I changed my desktop background and the next time I logged in I saw the issue.

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• Week in Geek: BlackHole RAT Trojan Targets Mac OS X Edition

  - by Asian Angel

  This week we learned how to change window transparency in Windows 7 with a hotkey, backup web-based email accounts using Thunderbird, “temporarily halt autorun, enable Android’s power control, & securely wipe CDs/DVDs”, “block text messages, prioritize Wi-Fi connections, & revitalize a Windows 6 phone”, learned what Bitcoin the virtual digital currency is, and more. Photo by Jessica Lucia. Latest Features How-To Geek ETC Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions Sync Your Windows Computer with Your Ubuntu One Account [Desktop Client] Awesome 10 Meter Curved Touchscreen at the University of Groningen [Video] TV Antenna Helper Makes HDTV Antenna Calibration a Snap Turn a Green Laser into a Microscope Projector [Science] The Open Road Awaits [Wallpaper] N64oid Brings N64 Emulation to Android Devices

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• fix vmware workstation 9 installation in ubuntu 12.10

  - by Alessandro Belloni

  i have opened this thread because i upgraded to ubuntu 12.10 beta (kernel 3.5) and i have problem with vmware workstation 9: "Unable to change virtual machine power state: Cannot find a valid peer process to connect to" does anyone got the same problem? Clean install of ubuntu 12.10 (daily build) installed vmware 9 and patched but not working, my laptop is a Lenovo T420 with Nvidia Optimus Technology. i can't patch correctly and get the thinks be builded correctly, my configuration is ubuntu 12.10 fresh installation vmware workstation 9 fresh install on top of a lenovo thikpad t420 with nvidia optimus video card. have a problems.. this message is show whem i try to apply the patch.. # Stopping VMware services: VMware Authentication Daemon done At least one instance of VMware VMX is still running. Please stop all running instances of VMware VMX first. VMware Authentication Daemon done Unable to stop services # How can i stop the vmware services to apply the patch? This message is too show when i try to patch again # ./patch-modules_3.5.0.sh /usr/lib/vmware/modules/source/.patched found. You have already patched your sources. Exiting # But the vmware is not working, and i can’t unstall…

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• Desktop Fun: Triple Monitor Wallpaper Collection Series 2

  - by Asian Angel

  Recently we shared the first batch in a series of wallpaper collections focused exclusively on triple monitor setups with you. Today we have our second offering in the series filled with all new wallpaper goodness to help make your monitors a joy to look at once again. 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. Special Notes Regarding This Collection: The website lists the following resolutions as available for backgrounds: 3072*768, 3456*864, 3840*800, 3840*960, 3840*1024, 4080*768, 4098*768, 4320*900, 4800*900, 4800*1200, 5040*1050, 5760*1080, 5760*1200, and 7680*1600. Keep in mind that the largest image size we were able to download was 5120*1600 pixels even though “5760*1080, 5760*1200, and 7680*1600″ were listed. Use the “Click here to change resolution preferences” link at the top of each page to select the size best suited to your monitors before downloading. The easiest way to save these images is to right click on the previews and select “Save As”. Latest Features How-To Geek ETC Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions Sync Your Windows Computer with Your Ubuntu One Account [Desktop Client] Awesome 10 Meter Curved Touchscreen at the University of Groningen [Video] TV Antenna Helper Makes HDTV Antenna Calibration a Snap Turn a Green Laser into a Microscope Projector [Science] The Open Road Awaits [Wallpaper] N64oid Brings N64 Emulation to Android Devices

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• 12.04 kernel panic

  - by jesus

  Hello I'm having trouble with Ubuntu 12.04. I downloaded the ISO and burned it into a CD and tried to install Ubuntu, but during the installation process, I got this message Kernel panic-not syncing Attempted to kill init! pid:1,comm:init not tainted 3.2.0-23-generic-pae#36-ubunru then it says switching to console text, and it just hangs in there and nothing happens. I burned another CD with Ubuntu 10.04, but I get a different problem: Ubuntu just gets stuck at the splash screen with the 5 dots which move from red to white, and nothing happens. I was able to boot before with 10.04 but I recently upgraded my computer graphics card and power supply. please see my system specs. Gigabyte GA-M68M-S2P (rev. 2.3) GeForce 7025 Chipset Athalon II x4 640 QuadCore Radeon HD 6870 sapphire OCZ ModXStream Pro 600W Modular High Performance Power Supply 3 hard drives one is IDE and the other two SATA IDE DVD Drive If any one could help me, I'd be most appreciative. If it helps I tried the F6 option like acpi=off noapic nolapic nomodset but i still get kernel panic

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• Interfaces and Virtuals Everywhere????

  - by David V. Corbin

  First a disclaimer; this post is about micro-optimization of C# programs and does not apply to most common scenarios - but when it does, it is important to know. Many developers are in the habit of declaring member virtual to allow for future expansion or using interface based designs1. Few of these developers think about what the runtime performance impact of this decision is. A simple test will show that this decision can have a serious impact. For our purposes, we used a simple loop to time the execution of 1 billion calls to both non-virtual and virtual implementations of a method that took no parameters and had a void return type: Direct Call:     1.5uS Virtual Call:   13.0uS The overhead of the call increased by nearly an order of magnitude! Once again, it is important to realize that if the method does anything of significance then this ratio drops quite quickly. If the method does just 1mS of work, then the differential only accounts for a 1% decrease in performance. Additionally the method in question must be called thousands of times in order to produce a meaqsurable impact at the application level. Yet let us consider a situation such as the per-pixel processing of a graphics processing application. Here we may have a method which is called millions of times and even the slightest increase in overhead can have significant ramification. In this case using either explicit virtuals or interface based constructs is likely to be a mistake. In conclusion, good design principles should always be the driving force behind descisions such as these; but remember that these decisions do not come for free.   1) When a concrete class member implements an interface it does not need to be explicitly marked as virtual (unless, of course, it is to be overriden in a derived concerete class). Nevertheless, when accessed via the interface it behaves exactly as if it had been marked as virtual.

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• How do I draw a point sprite using OpenGL ES on Android?

  - by nbolton

  Edit: I'm using the GL enum, which is incorrect since it's not part of OpenGL ES (see my answer). I should have used GL10, GL11 or GL20 instead. Here's a few snippets of what I have so far... void create() { renderer = new ImmediateModeRenderer(); tiles = Gdx.graphics.newTexture( Gdx.files.getFileHandle("res/tiles2.png", FileType.Internal), TextureFilter.MipMap, TextureFilter.Linear, TextureWrap.ClampToEdge, TextureWrap.ClampToEdge); } void render() { Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT); Gdx.gl.glClearColor(0.6f, 0.7f, 0.9f, 1); } void renderSprite() { int handle = tiles.getTextureObjectHandle(); Gdx.gl.glBindTexture(GL.GL_TEXTURE_2D, handle); Gdx.gl.glEnable(GL.GL_POINT_SPRITE); Gdx.gl11.glTexEnvi(GL.GL_POINT_SPRITE, GL.GL_COORD_REPLACE, GL.GL_TRUE); renderer.begin(GL.GL_POINTS); renderer.vertex(pos.x, pos.y, pos.z); renderer.end(); } create() is called once when the program starts, and renderSprites() is called for each sprite (so, pos is unique to each sprite) where the sprites are arranged in a sort-of 3D cube. Unfortunately though, this just renders a few white dots... I suppose that the texture isn't being bound which is why I'm getting white dots. Also, when I draw my sprites on anything other than 0 z-axis, they do not appear -- I read that I need to crease my zfar and znear, but I have no idea how to do this using libgdx (perhaps it's because I'm using ortho projection? What do I use instead?). I know that the texture is usable, since I was able to render it using a SpriteBatch, but I guess I'm not using it properly with OpenGL.

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• Will a polled event system cause lag for a server?

  - by Milo

  I'm using a library called ENet. It is a reliable UDP library. The way it works is a polled event system like this: ENetEvent event; /* Wait up to 1000 milliseconds for an event. */ while (enet_host_service (client, & event, 1000) > 0) { switch (event.type) { case ENET_EVENT_TYPE_CONNECT: printf ("A new client connected from %x:%u.\n", event.peer -> address.host, event.peer -> address.port); /* Store any relevant client information here. */ event.peer -> data = "Client information"; break; case ENET_EVENT_TYPE_RECEIVE: printf ("A packet of length %u containing %s was received from %s on channel %u.\n", event.packet -> dataLength, event.packet -> data, event.peer -> data, event.channelID); /* Clean up the packet now that we're done using it. */ enet_packet_destroy (event.packet); break; case ENET_EVENT_TYPE_DISCONNECT: printf ("%s disconected.\n", event.peer -> data); /* Reset the peer's client information. */ event.peer -> data = NULL; } } It waits up to 1000 milliseconds for an event. If I'm hosting say 75 event driven card games and a lobby on the same thread as this code, will it cause any problems. If my understanding is correct, the process will simply sleep until there is an event, when there is one, it will process the event then come back here where potentially 5 or so events have queued up since so enet_host_services would return right away and not cause lag. I have been advised not to use multiple threads, will that be alright like this? Thanks

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• Ubuntu 13.10 installer making no changes to partition, even after complete

  - by dragonhart6505

  Trying to install Ubuntu 13.10 (x64 package) on a HP Probook 4430S from USB made with UnetBootin. Intel Celeron B810 Dual-core x64 1.6ghz 4gb Ram Intel Graphics HD 2000 320GB HDD - 3 partitions (1 with backup files - 40gb, 2 Win7 that were dual-boot but no longer boot after attempting to install - 55gb and 222gb) I am fine with losing the data on the 222gb partition, but when trying to install it only shows the 55gb and the 222gb, but the 222gb is not 222gb...its including the 40gb backup. Whatever, went through with the installation anyway. Files can be replaced (just backed-up games anyway.) Installation appears to run without a hitch on the now 222gb/262gb partition, formatted to ext4 with the installer itself. Asks to reboot to begin using. Upon rebooting, I get the GNU boot selection screen. Press Enter on "Ubuntu". Get a "Gave up booting from root..." or something error. Reboot and load "Try without installing" option from USB. Once booted, nothing has changed! All 3 partitions are still present, all files intact. But now I can't boot my Win7 55gb partition. EVERYTHING in the "Try..." loader works perfectly. Bluetooth, Wifi, Display adapter, SD Card reader, HDMI-Out, DVD drive, USB ports...even reads correct battery data. Help?

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• Wifi not working on Acer Aspire One D270

  - by Dani

  brand new baby linux user here, never used Ubuntu or any other linux OS before, so be gentle and use short words! I installed Ubuntu 12.04 on my new Acer Aspire One D270-F61C/KF netbook (it's a Japanese computer which had Japanese windows preinstalled, and I decided to take the plunge and try Ubuntu because English Windows costs the earth and stars). Wifi isn't working; I enter my wireless password, it tries to connect for a while, then asks for my password again. And KEEPS ASKING, every few minutes. Wired connection works fine. Wireless card is a Broadcom BCM4313; I have the "additional drivers" checked and installed (I tried unchecking and then reinstalling them in case that would help, no joy, and now my home wifi connection isn't showing up in the list of available connections, argh). I've done a lot of googling and I gather there's a lot of issues with Broadcom cards, but some of the answers are for earlier ubuntu builds and many of them are a bit confusing for a new user. I gather I need to try installing some new drivers other than the proprietary ones provided, but I'm having trouble figuring out how that's done. Anyone got some simple, step by step instructions for me? Please bear in mind, TOTAL N00B. (EDIT): OKAY, got it fixed finally; after suggestions on the Ubuntu forums and messing around with drivers, what finally worked was installing Wicd. Not... using Wicd, for some reason, just installing it fixed it. ...I CHOOSE NOT TO QUESTION IT.

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• Looking for 2D Cross platform suggestions based on requirements specified

  - by MannyG

  I am an intermediate developer with minor experience on enterprise mobile applications for iphone, android and blackberry looking to build my first ever mobile game. I did a google search for some game dev forums and this popped up so I thought I would try posting here as I lack luck elsewhere. If you have ever heard of the game for the iphone and android platform entitled avatar fight then you will have an idea of the graphic capabilities I require. Basically the battles which are automated one sprite attacking another doing cool animations but all in 2d. My buddy and I have two motivations, one is to jump into mobile Dev as my experience is limited as is his so we would like some trending knowledge (html5 would be nice to learn) . The other is to make some money on the side, don't expect much but polishing the game and putting our all will hopefully reward us a bit. We have looked into corona engine, however a lot of people are saying it is limited in the graphics department, we are open to learning new languages like lua, c++, python etc. Others we have looked at include phonegap, rhomobile, unity, and the list goes on. I really have no idea what the pros and cons of these are but for a basic battle sequence and some mini games we want to chose the right one. Some more things that we will be doing include things like card games, side scrolling flying object based games, maybe fishing stuff. We want to start small with these minigames and work our way up to the idea we would like to implement in the future. We only want to work in 2D. So with these requirements please help me chose a platform to work on (cross platform is what we are ideally leaning towards). Please feel free to throw in some pieces of advice you may have for newbie game developers like myself too. Thank you for reading!

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• Diablo 3 "freezes" periodically

  - by Shauna

  I'm running Diablo 3 (start edition, digital download) on the following: Ubuntu 12.04 64-bit (stock Unity, Gnome, etc; kernel version 3.2.0-29-generic) Wine version 1.5.11 (base, from Wine's PPA, game started with setarch i386 -3) Intel i7 920 CPU nVidia GTX260 with driver version 295.49 ("post-release updates" entry within the proprietary drivers tool), dual monitors 6GB RAM Every so often (and what appears to be at random), the game video will freeze up. I can still move the mouse, and it reacts to ctrl+alt+f2 to drop into text mode, but I can't get back to the desktop (which means I can check terminal to see what's going on after launching from terminal, especially since even in windowed mode, the secondary screen gets shut off by the game), and I can't continue to play the game. In order to get it running again, I have to restart lightdm, then relaunch the game (or, in a couple of rare cases, I had to restart the computer entirely, because running sudo service lightdmn [stop/start] doesn't appear to react). Turning down the video settings seems to have helped in some cases, but not all of them. Times it's frozen on me: The beginning of The Fallen Start quest part 6 - kill the Wretched Mother, right as you walk out of New Tristram and engage in the monsters on the northern path (repeatedly froze here until I adjusted the graphics down) Within the cinematic/event upon finding Deckard Cain While fighting the skeletons to protect Deckard Cain When about to enter Leoric's passage after Cain sends you back to where you found him That's as far as I've gotten through the game so far. Additionally, this doesn't happen on other games I play and seems to only occur with Diablo 3. Has anyone else run into this issue and know a possible cause or fix, or at least know where I can look (and what to look for) to figure out why this is happening?

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• How do I install kivy?

  - by aspasia

  I was trying to install Kivy (by following the instructions here). I downloaded and installed all packages where the installation process went through without giving me any errors. However, when later I enter below command; sudo easy_install kivy It looked like it was going to work but it ends with an error by displaying following lines, which I don't comprehend: Detected compiler is unix /tmp/easy_install-BtOA_u/Kivy-1.8.0/kivy/graphics/texture.c:8:22: fatal error: pyconfig.h: No such file or directory #include "pyconfig.h" ^ compilation terminated. error: Setup script exited with error: command 'x86_64-linux-gnu-gcc' failed with exit status 1 I saw a similar question asked as; Problem with kivy installation. However, this didn't work for me though the question suggests installing libgles-mesa-dev-lts-raring which I did as below; sudo apt-get install libgles-mesa-dev-lts-raring which then gave below; E: Unable to locate package libgles-mesa-dev-lts-raring (sorry for being so specific and perhaps obvious, but I'm in the early stage of learning my way around linux). This user was running Ubuntu 12.04, and most other questions related to this I've seen came from people with a different release from mine, which has led me to believe that that is the reason why the suggestions to those didn't solve my problem. I'm using Ubuntu 13.10

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• Why would 70-persistent-net.rules have no effect?

  - by Wes Felter

  I've got a saucy server with a lot of NICs and they end up with weird names like "rename19". I know interface names can be changed by modifying the /etc/udev/rules.d/70-persistent-net.rules file. The first clue that something is wrong is that that file did not exist even though it's supposed to be created automatically. So I decided to write my own based on advice from Linux From Scratch: ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:06:00.0", NAME="eth0" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:06:00.1", NAME="eth1" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:06:00.2", NAME="eth2" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:06:00.3", NAME="eth3" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:0c:00.0", NAME="mezz0" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:0c:00.1", NAME="mezz1" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:1b:00.0", NAME="slot1a" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:1b:00.1", NAME="slot1b" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:20:00.0", NAME="slot2a" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:20:00.1", NAME="slot2b" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:11:00.0", NAME="slot3a" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:11:00.1", NAME="slot3b" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:8b:00.0", NAME="slot4a" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:8b:00.1", NAME="slot4b" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:90:00.0", NAME="slot5a" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:90:00.1", NAME="slot5b" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:95:00.0", NAME="slot6a" ACTION=="add", SUBSYSTEM=="net", BUS=="pci", KERNELS=="0000:95:00.1", NAME="slot6b" (I'm matching on PCI IDs instead of MAC addresses because I have multiple identical machines that I want to apply this configuration to.) After rebooting, nothing has changed. It's like these rules aren't even being read. There's not much going on in dmesg either: $ dmesg | grep udev [ 3.196629] systemd-udevd[323]: starting version 204 [ 6.719140] systemd-udevd[550]: starting version 204 [ 38.695050] init: udev-fallback-graphics main process (1658) terminated with status 1

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• Dell XPS 15 L502x and Ubuntu 11.04 - HDMI output

  - by Jones

  Recently I've bought my dream's notebook, a Dell XPS 15 but since then this dream became a kind of endless nightmare. I'm almost getting crazy to make my graphic card driver work properly, but it seems to be just impossible. Yes, I have a 2GB NVIDIA GeForce GT 540m (Optimus) in it! It simply doesn't work. Every time I generate the xorg.conf Ubuntu hangs on while starting up, which forces me to remove this file to be able to start the notebook with the standard graphic settings. Another problem is that the Dell XPS 15 does NOT have a VGA output, but a HDMI. So, to be able to use a second monitor I have to configure it by the NVIDIA X Server Settings, which just works if the driver is properly initialized with the xorg.conf. I've also tried to make it work with the Bumblebee, but unfortunately it didn't help me much with the HDMI output. Do you guys have any idea to solve this deadlock? Is there any way for me to use my second monitor?

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• Thread safe GUI programming

  - by James

  I have been programming Java with swing for a couple of years now, and always accepted that GUI interactions had to happen on the Event Dispatch Thread. I recently started to use GTK+ for C applications and was unsurprised to find that GUI interactions had to be called on gtk_main. Similarly, I looked at SWT to see in what ways it was different to Swing and to see if it was worth using, and again found the UI thread idea, and I am sure that these 3 are not the only toolkits to use this model. I was wondering if there is a reason for this design i.e. what is the reason for keeping UI modifications isolated to a single thread. I can see why some modifications may cause issues (like modifying a list while it is being drawn), but I do not see why these concerns pass on to the user of the API. Is there a limit imposed by an operating system? Is there a good reason these concerns are not 'hidden' (i.e. some form of synchronization that is invisible to the user)? Is there any (even purely conceptual) way of creating a thread safe graphics library, or is such a thing actually impossible? I found this http://blogs.operationaldynamics.com/andrew/software/gnome-desktop/gtk-thread-awareness which seems to describe GTK differently to how I understood it (although my understanding was the same as many people's) How does this differ to other toolkits? Is it possible to implement this in Swing (as the EDT model does not actually prevent access from other threads, it just often leads to Exceptions)

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• JavaOne 2012 Conference Preview

  - by Janice J. Heiss

  A new article, by noted freelancer Steve Meloan, now up on otn/java, titled “JavaOne 2012 Conference Preview,” looks ahead to the fast approaching JavaOne 2012 Conference, scheduled for September 30-October 4 in San Francisco. The Conference will celebrate and highlight one of the world’s leading technologies. As Meloan states, “With 9 million Java developers worldwide, 5 billion Java cards in use, 3 billion mobile phones running Java, 1 billion Java downloads each year, and 100 percent of Blu-ray disk players and 97 percent of enterprise desktops running Java, Java is a technology that literally permeates our world.”The 2012 JavaOne is organized under seven technical tracks:* Core Java Platform* Development Tools and Techniques* Emerging Languages on the JVM* Enterprise Service Architectures and the Cloud* Java EE Web Profile and Platform Technologies* Java ME, Java Card, Embedded, and Devices* JavaFX and Rich User ExperiencesConference keynotes will lay out the Java roadmap. For the Sunday keynote, such Oracle luminaries as Cameron Purdy, Vice President of Development; Nandini Ramani, Vice President of Engineering, Java Client and Mobile Platforms; Richard Bair, Chief Architect, Client Java Platform; and Mark Reinhold, Chief Architect, Java Platform will be presenting.For the Thursday IBM keynote, Jason McGee, Distinguished Engineer and Chief Architect for IBM PureApplication System, and John Duimovich, Java CTO and IBM Distinguished Engineer, will explore Java and IBM's cloud-based initiatives.All in all, the JavaOne 2012 Conference should be as exciting as ever.Link to the article here. Originally published on blogs.oracle.com/javaone.

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• JavaOne 2012 Conference Preview

  - by Janice J. Heiss

  A new article, by noted freelancer Steve Meloan, now up on otn/java, titled “JavaOne 2012 Conference Preview,” looks ahead to the fast approaching JavaOne 2012 Conference, scheduled for September 30-October 4 in San Francisco. The Conference will celebrate and highlight one of the world’s leading technologies. As Meloan states, “With 9 million Java developers worldwide, 5 billion Java cards in use, 3 billion mobile phones running Java, 1 billion Java downloads each year, and 100 percent of Blu-ray disk players and 97 percent of enterprise desktops running Java, Java is a technology that literally permeates our world.” The 2012 JavaOne is organized under seven technical tracks: * Core Java Platform* Development Tools and Techniques* Emerging Languages on the JVM* Enterprise Service Architectures and the Cloud* Java EE Web Profile and Platform Technologies* Java ME, Java Card, Embedded, and Devices* JavaFX and Rich User Experiences Conference keynotes will lay out the Java roadmap. For the Sunday keynote, such Oracle luminaries as Cameron Purdy, Vice President of Development; Nandini Ramani, Vice President of Engineering, Java Client and Mobile Platforms; Richard Bair, Chief Architect, Client Java Platform; and Mark Reinhold, Chief Architect, Java Platform will be presenting. For the Thursday IBM keynote, Jason McGee, Distinguished Engineer and Chief Architect for IBM PureApplication System, and John Duimovich, Java CTO and IBM Distinguished Engineer, will explore Java and IBM's cloud-based initiatives.All in all, the JavaOne 2012 Conference should be as exciting as ever. Link to the article here.

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• How do I start Ubuntu without X server?

  - by Kaare Mikkelsen

  So, I'm trying to install the official nVidia drivers for my fancy graphics card, and they advice disabling the X server before installing, as well as making sure that I can boot without the X server, so as not to wreck anything. However, I seem to be doing something wrong. As I understand it, this should be as simple as changing the runlevel from 2 to 1? (I am aware that all this may simply be me not understanding runlevels) If that is correct, a quick test should be simply typing "sudo init 1" or "sudo telinit 1" in a terminal? Doing that makes the system attempt to shutdown, only it stops at the purple screen with the ubuntu logo and 5 white dots underneath. I haven't observed it get anywhere from there, I always end up holding down the power button. "sudo telinit 3" has not visible effect. Alternatively, I should be able to get there using the recovery mode, activated through the grub menu? I have very little success with that. After picking recovery mode, I am faced with a set of options about how to proceed. Both choosing the one with "network enabled" and "text only", I get a dialog explaining that this will mount my / file system in read/write mode, and whether this is what I want. I choose yes, and it seems to report that my drive is fine (there's a single line of text detailing the state of the partition). And then it stops. I haven't tried letting it sit for more than a few minutes, but presumably this process should be comparable in duration to a regular boot? I am not particularly fond of messing with any .conf-files until I am certain that I can handle things with training wheels on. So, I guess there are two questions: the one in the title, and "how do I start a text-only session without changing defaults?" Thanks in advance :)

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• Watch a Machine Get Upgraded from MS-DOS to Windows 7 [Video]

  - by ETC

  What happens if you try to upgrade a machine from MS-DOS to Windows 7? One curious geek ran the experiment using VMWare and recorded the whole, surprisingly fluid, ride for our enjoyment. Andrew Tait was curious, what would happen if you followed the entire upgrade arc for Windows from the 1980s to the present all on one machine? Thanks to VMWare he was able to find out, following the upgrade path all the way from MS-DOS to Windows 7. Check out the video below to see what happens: Chain of Fools: Upgrading Through Every Version of Windows [YouTube via WinRumors] Latest Features How-To Geek ETC Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions Access and Manage Your Ubuntu One Account in Chrome and Iron Mouse Over YouTube Previews YouTube Videos in Chrome Watch a Machine Get Upgraded from MS-DOS to Windows 7 [Video] Bring the Whole Ubuntu Gang Home to Your Desktop with this Mascots Wallpaper Hack Apart a Highlighter to Create UV-Reactive Flowers [Science] Add a “Textmate Style” Lightweight Text Editor with Dropbox Syncing to Chrome and Iron

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• Cannot boot computer, help please :(

  - by Austin

  Ok so here is more descriptions, I REALLY NEED HELP! I installed Ubuntu on a disk (unsure of v. I can't check.. Computer is broke :/ ) I then burned the disk I restarted computer pressed f12 blah blah it came up, I pressed enter for English, I plugged an Ethernet card in for better connection, and then started the installation.... I did the basics, and I entered a host name, and a user name and pass all that, when it came to partition page, I presse enter for no and then it went back to the installation page, I pressed install again, and it brought me back, so I selected yes , it loaded an it asked what software to instal I selected sh ( it was first option and I didn't know which to do ) so after everything finished loading, my disk was ejected the process finish, I run my computer and it opens up in log in page on cmd script I didn't know it, so I ran disk again makin a user and pass to remember.... Going back to login thing I logged in, and all it did was say my username... I didn't know what to do from there, I looked online found nothing but grub stuff, so I went to "Advanced Ubuntu options" and then "(Recovery Mode) and went to update grub... In middle o loading it asked to continue (Y/n) I typed Y and it finished, it went back to the options located in (Recovery Mode) and I closed it, and it loaded... And then showed up in another script screen, saying a paragraph on top, and on left side ( where login: would be located etc. ) it says "Grub" and I don't know what to type, if I turn off computer and turn back on it just goes straight to that again... PLEASE HELP:(

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• How to make Unity 3D work with Bumblebee using the Intel chipset

  - by EboMike

  I have a Sony VAIO S laptop with the dreaded Optimus and finally managed to get Bumblebee to work fully on Ubuntu 12.04 so that I can utilize both the hardware acceleration of the Intel chipset as well as the Nvidia one via optirun and/or bumble-app-settings. However, the desktop effects don't work. But they should, I vaguely remember that they worked for a while before I had Bumblebee installed. This is what I get with the support test: :~$ /usr/lib/nux/unity_support_test -p Xlib: extension "NV-GLX" missing on display ":0". OpenGL vendor string: Tungsten Graphics, Inc OpenGL renderer string: Mesa DRI Intel(R) Ivybridge Mobile OpenGL version string: 1.4 (2.1 Mesa 8.0.2) Not software rendered: yes Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: yes GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: no GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: no First of all, I kind of doubt that the chipset doesn't support VBOs (essentially a standard feature in GL). Neither Xorg.0.log nor Xorg.8.log show any particular errors. As for the Nvidia drivers: In order to get them to work, I had to install the 304.22 drivers (older ones wouldn't work). They clobbered libglx.so, so I reinstated the xserver-xorg-core libglx.so in its original place, moved Nvidia's libglx.so to an nvidia-specific folder and specified that folder in the bumblebee.config. That seems to work and shouldn't cause the problem I see here. For fun, I tried to use the Nvidia chipset for Unity, but that didn't fly either: ~$ optirun /usr/lib/nux/unity_support_test -p OpenGL vendor string: NVIDIA Corporation OpenGL renderer string: GeForce GT 640M LE/PCIe/SSE2 OpenGL version string: 4.2.0 NVIDIA 304.22 Not software rendered: yes Not blacklisted: yes GLX fbconfig: yes GLX texture from pixmap: no GL npot or rect textures: yes GL vertex program: yes GL fragment program: yes GL vertex buffer object: yes GL framebuffer object: yes GL version is 1.4+: yes Unity 3D supported: no

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