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• Google I/O 2011: Accelerated Android Rendering

  Google I/O 2011: Accelerated Android Rendering Romain Guy, Chet Haase Android 3.0 introduced a new hardware accelerated 2D rendering pipeline. In this talk, you will be introduced to the overall graphics architecture of the Android platform and get acquainted with the various rendering APIs at your disposal. You will learn how to choose the one that best fits your application. This talk will also deliver tips and tricks on how to use the new hardware accelerated pipeline to its full potential. From: GoogleDevelopers Views: 11086 62 ratings Time: 48:58 More in Science & Technology

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• XRDP crashes when using xfce desktop

  - by user291721

  I've been struggling with this for a few days. Currently using Ubuntu 14.04. I started out trying to use VNC and could connect but only received a black and white checkered screen when connecting using tightvnc from my windows machine. Seems that applications seem to have issues interpreting the gnome graphics. I then tried XRDP and received the same issue but was able to find enough information to get by this issue. After creating a .xsession file and setting the desktop to spawn an xfce4-session I was able to connect and the desktop displays, at least for a few seconds. After a couple seconds rdp crashes and I'm unable to connect again until I restart the xrdp service. Any help would be appreciated. Thanks

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• Unity environment way too slow in Ubuntu 13.10

  - by Santiago

  Unity and its apps open too slowly whenever I open one. It takes a while for them to appear completely. Everything works properly when the window is already open. The biggest problem is with the dash: it's SO SLOW when I'm looking for an app although I have removed some lenses. What should I do or what can I do? These issues only occur with Ubuntu 13.04 and 13.10 whereas 12.04 works AMAZNGLY but I have issues when updating a package or installing a new one, that's why I don't opt for that one. Specifications: RAM: 2GB, Processor: Intel® Atom™ CPU N2600 @ 1.60GHz × 4, Graphics card: Gallium 0.4 on llvmpipe (LLVM 3.3, 128 bits)

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• VMWare Player pauses often

  - by pascal

  I'm using a 64bit Windows 8 inside vmplayer, with 2 virtual processor cores, virtual hard disk resides on a fast local disc and is not preallocated; host CPU is Intel i7 3770, should be capable of hardware virtualisation but I don't know if VMWare uses it; NAT networking; Sound card connected, USB connected, accelerated 3D graphics (NVidia 313.30 on host) My problem is, that the VM often pauses for a few seconds, and then speeds up for a few seconds to reach real time again. Time in the VM actually moves faster after the pause, for example all animations using timers speed up. When running, the vmware-vmx process shows ~150% CPU usage in top, but 0% when pausing (and D state i.e. waiting for IO). iotop shows normal disk writes from vmware-vmx threads, but during pauses, the flush kernel thread uses 99%. Are there some options to try so that VMWare doesn't wait for IO? I've tried a few things available from the GUI but the issue never went away…

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• How do you configure mupen64plus controls?

  - by user99426

  I installed mupen64plus from the repositories using Synaptic. I like the emulator (for the most part, a couple of graphics glitches on TLOZ Ocarina of Time), especially its performance on my old machine, but I cannot figure out how to configure the controls for myself. I tried looking at Google Code's guide here but I can't find the file I need to edit and the link with the key ids isn't working, so even if I could find the file I wouldn't be able to change anything. So what I need is a resource with the key ids and where to find the file I need to edit. I am running Ubuntu 12.10 32-bit. 2GB RAM, Intel CORE 2 DUO @ 2.00GHz

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• Re-sizing the form without scaling the GUI

  - by Bmoore

  I am writing a turn based strategy game in C#. My GUI implementation consists of class that extends Form containing a class that extends Panel. When I render the GUI I draw to the paint method in the panel. I am trying to figure out what is the best way for handling form re-size events. I know I want a minimum window size, but I would prefer to not have a maximum or a set size. Ideally the GUI would reveal more/less of the map as the user changes the window size. I would like to avoid scaling the graphics if at all possible. What is the best way to handle re-size events?

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• Ubuntu 12.10 install freezes at configuring hardware

  - by Max Keener

  I'm installing Ubuntu 12.10 (64 bit) from a bootable USB stick. At first I had trouble with a black screen after selecting 'install ubuntu'. I added nomodeset and xforcevesa to the options to fix that problem. Now when installing, it hangs at 'Configuring Hardware', specifically at ubuntu ubiquity: update-initramfs: Generating /boot/initrd.img-3.5.0-17-generic Specs: Asus UX32a DB51 Intel Core i5 3317U 1.7 GHz 4GB DDR3 RAM intel hd 4000 graphics 500 GB harddrive with 25 GB sandisk ssd I'm trying to install Ubuntu by itself right now on the SSD. I made custom partitions (100 mb EFI boot partition, 4GB swap space, 20GB ext4 mounted on '/') I've tried re-downloading the ubuntu iso and creating a new boot image on my flash drive and it results in the same problem. Thanks in advance for the help!

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• Backtrack 5 R2 Dual-Boot w/Windows 7 No Longer Loads

  - by dstars5

  A while back, I installed Backtrack 5 R2 to Dual Boot on a Windows 7 PC. It worked fine for a while, but now when I try to load it, the screen gets all messed up (tried to get a picture with my phone, but it wasn't working too well). The last line before it freezes says: fb: conflicting fb hw usage: nouveaufb vs VESA VGA - removing generic driver Since it last worked, the only changes I can think of are that the computer is now connected via ethernet cable to the router, and I upgraded the graphics card (to nvidia). Because of the last line, I personally would put my money on the latter, but I still have no clue how to fix this. Can someone help me? Thanks!

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• GeForce8800 ultra

  - by Gunnar

  I have been running Ubuntu 10.04 with GeForce 8800 Ultra graphics card without any problems for many months until a few days ago, after some updates, everything stopped working. Can't use Stellarium (my favorite program) and everything (even the mousecusor) stops responding for a long time. Takes ages to load the desktop and everything is just "f..." B.t.w. I have a dual boot and WinXP is not having this problem with the 8800 card. So, elementary... What's going on between Ubuntu and Nvidia? Best regards Gunnar

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• Ideas for card deck names [closed]

  - by Milan Babuškov

  I'm creating a card game, and wish to offer players to choose from different sets of playing cards. The game logic remains the same, only the design and graphics on the cards would be different. It would feature classic French set, German/Hungarian one, and a bunch of other custom designed ones. I'm looking for some cool names to give to those sets. I thought maybe to use names of some world cities like "London set", "Paris set", "Tokyo set", but there might be something better. I know this is really open-ended question, so there might not be a definitive "correct" answer, but I hope this kind of brainstorming would be useful to anyone looking for ideas to name a set of... well, anything. I'll up-vote any good idea, no matter if I don't end up using any of those.

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• How to configure screens in console or create screen configuration profiles?

  - by uncle Lem

  I have two monitors and integrated GPU (Intel® HD Graphics 4600). It works fine for work or movies, but if I launch games in fullscreen mode - I get artifacts, glitches and so on. Temporary disabling second monitor solve this problem, but then I have to enable it back, and set its properties manually (by default, additional screen attaches its left-top corner to main monitor's right-top corner, but I need it to be left-bottom and right-bottom corners). So I need some kind of automatization here. Best option - tool to create and swap between some kind of config profiles. Or, maybe, some console manipulations which I can put into script files would be fine too. (Ubuntu 13.04, if it matters)

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• Recommended flexible website solution?

  - by Omega

  My site has a MyBB forums installation, and that is pretty much all I need. Forums. However, I need a homepage and a couple other static pages, for showing relevant information, links, etc. I don't need something fancy, all I need is something very flexible regarding theme and style editing, and just a couple simple modules, like public polls. That's all. I am very graphical, and I am looking for something to let me edit pretty much every aspect of the site. These are static pages, mainly, so I don't need something very complex. Some people tell me to use Dreamweaver, but quite honestly, that is not what I am looking for, even thought it does offer a lot of flexibility. I want something like, you know, Drupal or.. some other simple, deeply-editable in terms of graphics and style web platform. What would you recommend to me? Thank you.

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• WinXp display driver incorrect to boot iso ubuntu 12.04

  - by user285829

  I have Windows Xp on a HP Pavilion w/AMD Athlon 64 processor 3300+. I have downloaded Ubuntu 12.04 iso desktop. When trying to run Ubuntu, I get a line that says "sis 630 buss not detected. It continues and makes a blue screen, then says low graphics mode only and has a white screen. The HP has display adaptor sis 760, driver= 6.14.10.3671, 4/20/2005. I'm not familiar with ubuntu because I've never got it started as yet. Can the Ubuntu install process be changed to accept my sis 760 driver? I'm trying to make a Live CD(dvd) to run Ubuntu.

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• Unable to mount location, Can't mount file

  - by user116008

  I'm a new user to Ubuntu and I have a problem: I had Windows XP in my computer and I had two partitions: C (for system data) and D(for my personal stuff), then, during the Ubuntu installation I chose the Advanced Settings and formated C partition and left D partition intact, went back and chose Install Ubuntu and replace Windows and it installed fine. The problem is that now I open Nautilus and go to Computer, in there it shows my D partition, 640 Hard Disk, but when I try to mount it displays me a message: "Unable to mount location. Can't mount file". I ask you to explain me step-by-step what I need to do because I'm not an advanced user. My computer specs: 2 GiB RAM, Proccesor Pentium(R) Dual-Core CPU E5400 @ 2.70GHz × 2, Graphics Unknow (It's Nvidia GeForce 220 {1GB} or something), OS type 32-bit, Disk 628.0 GB P.S.: My HDD is internal, I'm not using external Hard Drives. Thank You!!! Mike

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• Efficient skeletal animation

  - by Will

  I am looking at adopting a skeletal animation format (as prompted here) for an RTS game. The individual representation of each model on-screen will be small but there will be lots of them! In skeletal animation e.g. MD5 files, each individual vertex can be attached to an arbitrary number of joints. How can you efficiently support this whilst doing the interpolation in GLSL? Or do engines do their animation on the CPU? Or do engines set arbitrary limits on maximum joints per vertex and invoke nop multiplies for those joints that don't use the maximum number? Are there games that use skeletal animation in an RTS-like setting thus proving that on integrated graphics cards I have nothing to worry about in going the bones route?

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• How to add a command permanently to grub2

  - by tomodachi

  I have a fairly special setup, using Linux on a MacBook Laptop. to switch off my secondary graphics card in it I'm required to add these lines to my grub outb 0x728 1 outb 0x710 2 outb 0x740 2 outb 0x750 0 I do this by pressing 'e' for my selected grub menu option and adding the lines one by one . then finally booting . But as we know it's not permanent. I cant really figure out where i need to add it for grub to always append it to my Linux boot options. It's doesn't seem to belong in /etc/default/grub since here i can add stuff to the kernel boot line Honestly i'm afraid to fiddle to much with grub on my computer since getting it to triple boot Linux/Mac/Windows was a very delicate and timely matter. Does anyone have any idea of where to add it?

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• Render 2D textures on a 3D object's face

  - by www.Sillitoy.com

  I am not familiar with 3D graphics, and I'd like to know the right way to render some 2D figures on different points of a wider face of a 3D object. My 3D object is just a cube representing a poker table. I have a 2D png for players' placeholders, and I'd like to render these figures on the 3D object where needed. An alternative solution would be to render the whole face with a big picture containing all the placeholders figures. However, it would be a waste of memory and thus less efficient. What do you suggest?

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• Ubuntu won't wake after pm-suspend

  - by Matus

  i have ubuntu 12.04 on my Zotac AD-02. Problem is when i run pm-suspend. zotac goes to sleep (it shows red led, and green light is flashing) but when i send magic packet to WOL it hangs ... it stops flashing and LED is green as its turned on but SSH wont run and it won't react to mouse or anything. I've read that sometimes it has something to do with graphics. It is mainly for DLNA and PLEX so i don't use any graphic component so if there is the problem tell me how to disable it :) is there some log or anything i can post? im fairly good at bash but not at all in ubuntu or debian. so i can't find any log. Thanks EDIT: here is lscpi if it helps

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• XNA When to call LoadContent

  - by Peteyslatts

  I have an enum in my game that denotes the game state ie MainMenu, InGame, GameOver, Exit and I was wondering if it would be advisable to add a new one in for PrepGame - in which the game creates viewports for however many players there are, creates the battlefield etc. I feel like this is a good idea except for one thing: should I make a call back to LoadContent() in this state? I could just put a switch statement in the LoadContent for my currentGameState. If it equals PrepGame load things like the skybox, ship models, texures, HUD graphics etc. Or is it a good idea to create an Asset Manager class in the first call to LoadContent() and load everything then. I feel like both approaches have different benefits: faster, but more load times vs slower initial load time, but then all my objects are referencing the same variables so I only have to load each on once. Any help is greatly appreciated. Thanks, Peter

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• Resuming from hibernation shows a fuzzy "static" screen

  - by Ross

  When I resume from hibernation in Ubuntu 10.10 the screen shows static, very similar to what you see on an analogue TV that hasn't been tuned properly. This also occurs on boot from shut down, but only for a moment after the Plymouth boot screen. The static lasts for at least 5 minutes. An odd thing that happens is that the mouse pointer, as a lighter square of static, becomes visible and you can move it around. Attempting to change into a terminal (i.e. Ctrl+Alt+F1) doesn't seem to work (and I'm not sure if that can be done from the login screen). Resuming from suspend has different issues - vertical lines appearing for a second before appearing to be in terminal mode (blinking cursor) and then going to the lock screen. I'm running Ubuntu 10.10 on a Dell Studio 15 with ATI graphics, however I'm not using the proprietary drivers as I had issues with dual-screen support, so it's the generic X.org drivers being used.

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• Optimus Bumblebee Performance

  - by Chance

  After installing Ubuntu 12.04 and Bumblebee, I tested out the performance of the Nvidia card using Minecraft and a few other games. I've noticed it to be way slower than it was on Windows 7. Is this normal? I'm using the GT 630m. From what I've read online, nobody has said it to be slower than Windows. I'm just really curious because I want to use Linux so much more than Windows, but if I don't get the same performance I feel really picky. The Nvidia card is still faster than my Intel graphics on Ubuntu, but it's not as fast as it was for my on Windows. I get 60 - 80 fps on Minecraft on windows, while I get 28 - 48 fps on Ubuntu. Any Ideas why? Thanks so much!

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• 11.04 64 bit live install cd freezes immediately on boot

  - by wrchis

  I am trying to install 11.04 alpha to a free set of partitions to try it out but neither the regular graphic installer or the alternate installer work. The graphic one freezes when I try to boot the cd (or cd image on usb stick rather) with a distorted static picture of my regular desktop repeated four times. I have an nvidia 240 graphics card if that is any help in diagnosis. I think it is a matter of getting the cd image to use a low rez video mode but I have no idea how to force that. I have used both the iso's from the regular page and the daily page (for several days so far) and they all do the same thing. I have tried both the internal utility and unetbootin to set up the stick with the same results. The alternate installer seems to work up to the point of the software selection step and then throws a 'failed step' error part way through.

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• Gnome Shell opens as classic

  - by Joe Horgan

  I'm running 12.04 on a Gateway LT4004u netbook, and I installed Gnome3 using the apt-get commands in the terminal. When I rebooted and ran "Gnome Shell" it opened up classic mode. I thought that my cursor might have slipped the first time, but on multiple retries logging in under gnome shell would open the gnome classic desktop. I even uninstalled Gnome Shell and reinstalled it with software center, but I still have the same problem. I was wondering if this might be an issue with my graphics card? Any help would be much appreciated, thanks! -Joe

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• System locks up at login after latest update on 12.04

  - by RCD

  For starters, I am a noob when it comes to Ubuntu and Linux...but I am hopeful that I have the "light" and the error of my past MS ways :) ..... After a recent update last week from 12.04 to 12.04.1 my system now locks up at the login screen. Before the update the system would run but must admit it ran EXTREMELY slow. I have installed 12.04 on a Dell P4 2.4 Ghz, 2 GB DDR Ram, 80 GB IDE HD and an integrated Intel 3D Extreme Graphics. Any ideas on why now the system locking up at login screen? Appreciate any ideas and/or tips Thanks

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• Java 2D World question

  - by Munkybunky

  I have a 2D world background made up of a Grid of graphics, which I display on screen with a viewport (800x600) and it all works. My question is I have the following code to convert the mouse co-ordinates to world co-ordinates then World co-ordinates to grid co-ordinates then grid co-ordinates to screen co-ordinates. //Add camerax to mouse screen co-ords to convert to world co-ords. int cursorx_world=(int)camerax+(int)GameInput.mousex; int cursorx_grid=(int)cursorx_world/blocksize; // World Co-ords / gridsize give grid co-ords int cursorx_screen=-(int)camerax+(cursorx_grid*blocksize); So is there anyway I can convert straight from mouse screen co-ords to screen co-ordinates?

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