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  • Installed Ubuntu on a macbook pro and am running into errors with internet

    - by user209270
    I recently installed Ubuntu (64 bit, 12.04) on a mid-2012 Macbook Pro, and I've been having some really annoying issues. Chief among them is that my wireless doesnt seem to function properly. I've installed Ubuntu on this mac before, and again this time the drivers for the wireless card were missing. I, using something along the lines of sudo su apt-get update apt-get upgrade apt-get b43-fwcutter firmware-b43-installer A new problem I've been experiencing however is that none of the networks available in my home show up. I've been able to connect theto themm by going into "Connect to hidden networks" and typing in the network name and password, but when I restart the computer my network (let's just name it "Network1"), doesnt show up. I tried going into "Edit Connections" and it shows up in the wireless tab, but it is never connected to automatically or shows up in the drop-down menu. Any help?

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  • Install Ubuntu on iMac 21.5" (mid 2011)

    - by Mystic Mark le Maverick
    I has a dual boot system with MacOSX 10.8.2 and Microsoft Windows 7 Home Premium x64. I would like to install Ubuntu alongside the two existing operating systems for cross platform development purposes. My System specs are listed below. iMac 21.5-inch (mid 2011) Intel Core i7 @2.80GHz AMD Radeon HD 6770M Facetime HD Internet Camera Thunderbolt port Wireless Airport adapter card Apple 8x Superdrive Apple Magic Mouse and wired keyboard with numeric keypad Will rEFIt install properly on my machine too? Thanks you very much for the help.

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  • Minecraft program frame rate is very slow

    - by Cade
    I have recently downloaded Minecraft to Ubuntu 12.04. It launches and plays successfully, however- the frame rates for the game are extremely slow. They never go past 9 fps and usually drop below 3 fps. I have been a Windows XP user for years and have just recently switched to Ubuntu, so I'm not an expert with this OS. My video card is a Diamond Stealth s60 with Radeon 7000. I don't know what other information you guys need but if you ask for it, and would please tell me how to get to it, I will tell you as soon as I can. Thanks for your help.

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  • Ubuntu 10.10 screen goes nuts and unreadable

    - by ChazD
    Running Ubuntu 10.10 in its own partition, also have Oracle Virtualbox 4 with Windows XP. Because i previously had a problem with a dark screen when i let the laptop on and i didn't use it for a long while i had set Power settings to Never sleep, never let the Display sleep. Monitor on install set to Laptop resolution 1400 by 1050, refresh rate 60 Hz, rotation Normal. The problem was when the computer was left on and i returned after about an hour, the screen was unreadable, similar to what used to happen to graphics cards before multisync became normal. So it appears as though the graphics card was asked to use a resolution it couldn't handle and went nuts. I had to power off the system, on restart everything was fine. Thanks for any suggestions. ChazD

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  • No background/wallpaper in Ubuntu 12.04 - what to do?

    - by magnesus
    This is how my desktop looks like after moving Firefox window arround: The background just doesn't redraw, there is no wallpaper. It is like that since update to 12.04 - it was the same in 11.10 but I had special intel drivers then that fixed this problem. Doesn't seem to be fixed in 12.04 even with the ppa I was using then. What can I do? I couldn't find anything about it on Google because results were unrelated. :( I have Samsung RF-511 notebook with Nvidia card turned off - so it's using only Intel from i7.

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  • Problem with the screen resolution on Ubuntu 12.04

    - by sveinn
    I just installed ubuntu on my laptop. The screen resolution is stuck in 1024x768. The screen is made for 1280x800. When I run xrandr I get: xrandr: Failed to get size of gamma for output default Screen 0: minimum 800 x 600, current 1024 x 768, maximum 1024 x 768 default connected 1024x768+0+0 0mm x 0mm 1024x768 61.0* 800x600 61.0 1280x800 isn't offered and I get gamma size error. I was going to look into the Xorg.conf file but I couldn't locate it. 1280x800 was displayed in Windows 7 and I think it is being displayed in Grub before ubuntu starts also. Here are some details about my computer: CPU Intel atom D2500 1.86GHz Chipset Intel 945GSE+ICH7M LCD 14" TFT 16:9 Resolution ratio 1280*800 Video Card Intel integrated GMA950 Does anyone know how to fix this?

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  • What techniques can I use to render very large numbers of objects more efficiently in OpenGL?

    - by Luke
    You can think of my application as drawing a very large ball-and-stick diagram (or graph). At times, this graph can get very large, where the number of elements even outnumbers the pixels on the screen. Currently I am simply passing all of my textures (as GL_POINTS) and lines to the graphics card using VBO's. When the number of elements outnumbers the number of pixels, is this the most efficient way to do this? Or should I do some calculations on the CPU side before handing everything over to the GPU? If it matters, I do use GL_DEPTH_TEST and GL_ALPHA_TEST. I do some alpha blending, but probably not enough to make a huge performance difference. My scene can be static at times, but the user has control over a typical arc-ball camera and can pan, rotate, or zoom. It is during these operations that performance degradation is noticeable.

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  • How can I stop pixel seams appearing in adjacent mesh boundaries due to floating point imprecision?

    - by ufomorace
    Graphics cards are mathematically imprecise. So when some meshes are joined by their borders, the graphics card often makes mistakes and decides that some pixels at the seam represent neither object, and unwanted pixels appear. It's a natural behaviour on all graphics cards. How are such worries avoided in Pro Games? Batching? Shaders? Different tangent vectors? Merging? Overlaping seams? Dark backgrounds? Extra vertices at borders? Z precision? Camera distance tweaks? Screencap of a fix that ended up not working:

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  • Can't boot - "Waiting for Network Configuration"

    - by user213017
    After an update on 13.10, my PC won't boot Ubuntu any longer. It displays the infamous "Waiting for Network Configuration" message and then hangs. I can go into recovery mode, and choose "Start networking" and then go to a root prompt, and that works fine. Ping works. /etc/network/interfaces contains just the two lines "auto lo" and "iface lo inet loopback". I've double-checked that my network is working, the cable is working (it works on another PC) and the network card seems to indicate a connection. Any suggestions on how to get my PC booted again? Right now I'm limited to a root shell prompt.

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  • Samsung RV520 with 12.04 freezes while having WiFi and brightness control issues

    - by daveu1
    I have a new Samsung RV520 and have just installed Precise Pangolin 12.04 LTS. I am having serious problems now with the wifi constantly disconnecting. This then causes the brightness control to appear on the screen. The screen starts flickering and then freezes the whole machine. Indeed the brightness control doesn't work at all. I am using a Intel Centrino N wireless card. Please can anyone provide any guidance as to how to resolve these issue on this machine. Many thanks for your help.

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  • How do professional games avoid showing pixel seams in adjacent mesh boundaries due to decimal imprecision?

    - by ufomorace
    Graphics cards are mathematically imprecise. So when some meshes are joined by their borders, the graphics card often makes mistakes and decides that some pixels at the seam represent neither object, and unwanted pixels appear. It's a natural behaviour on all graphics cards. How are such worries avoided in Pro Games? Batching? Shaders? Different tangent vectors? Merging? Overlaping seams? Dark backgrounds? Extra vertices at borders? Z precision? Camera distance tweaks? Screencap of a fix that ended up not working:

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  • Which way to make money on Android? ads, purchase, trial version?

    - by otakun85
    Hi, I want to release an app, but what is in your experience the best way to make money on android? I've seen some solutions out there, but which one is the best? Solution A: App is free and has ads. + long term income + free for customer ~ money based on usage - ads makes apps ugly - needs a internet connection, which your app may not need Solution B: App is purchased + instant income ~ money only once ~ the customer have only 15 minutes to try out the app - you need a credit card on the google market - the customer have to give money :D Solution C: Trial version Solution D: free Lite version with ads & full to pay version without adds Any other ideas?

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  • Can't install Ubuntu 13.10 from 12.04 lts

    - by Matt Carle
    I have ubuntu 12.04 lts installed on my hp pavilion and I want to try 13.10. When I try to boot into the livecd, I get the purple ubuntu splash screen, then a blackscreen where some text flashes (to fast to see what it says) then it goes to a black screen and stays there. I know the installation disc is not the problem because I've successfully installed it on a different machine using the same disc. I've been trying to troubleshoot the issue for a while now and no luck. I have a radeon hd 8250 card. I know it's not much to go off of but any help would be greatly appreciated! Thanks!

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  • ubuntu 12.04: Why my laptop is consuming more power than 11.10?

    - by sanz
    I had 11.10 X86 on my Asus laptop (sandybridge, Nvidia 520M). I had 8 hours' battery life with Bumblebee and Jupiter. Average battery discharge rate was around 10w. Later I changed, not upgraded, to 12.04.1 AMD64. I installed Jupiter. But there is no "restricted drivers" available so I guess Bumblebee will not work. So I removed nvidia drivers. Now I only get 4 hours' battery life. Average battery discharge rate is around 19w. The removal of nvidia driver did not make any difference. What's the cause? Nvidia video card not disabled or 64b version of Ubuntu?

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  • .xprofile isn't enough

    - by BrianXP7
    I've been trying to find a solution on how to change the screen resolution on the login screen and other users. .xprofile will only affect my account. I've been searching for a few months but I got nothing. Please help. It would be easier if the "Default Resolution" was still there in the monitors settings. Plus, I'm afraid of editing the xorg.conf. Last time was ugly... My specs: HP dc5000 Small Form Factor Ubuntu 11.10 Oneiric Ocelot i386 Intel Pentium 4 2.40 GHz Intel 82865g x86/MMX/SSE2 Integrated Graphics (Standard Experience, OpenGL 1.3 and Runs Unity 3D :P) SoundMax Integrated Audio Card Broadcomm Integrated Ethernet 994.1 MiB RAM 38.3 GB HDD Acer X203H (Maximum Resolution 1600x900)

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  • Ubuntu on low powered laptop

    - by zkent
    First off, I am new to Ubuntu. I come from a Windows background (DOS before that) and am loving it so far. I installed it on an older Dell laptop that I wanted to get another year out of. I set this machine up primarily as a LAMP development machine for a project I am working on. The machine is a Vostro 1500 and it has 4GB RAM (maxed) and an upgraded hard drive. I can't watch YouTube videos for long before it starts to overheat and start acting sporadic. I can live without YouTube but every so often the application switching (alt-tab) gets slower and begins not showing all applications and the Dash home quits displaying properly. I am sure I am asking a lot of this old machine. What I really want to know is: are there any settings in Ubuntu that allow me to lower the graphic effects (fade-ins, transparencies, fancy transitions, etc) that would be less taxing on the video card?

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  • Blank Screen ... No Bios Loading Screen Either

    - by SwissStar
    I don't even know how long it's been but I had given up. until now. My screen does not come on AT ALL, not even and the Bios loading screen. I have to connect it to my TV in order to see. But there's one thing that has always started it back up, and that is by running a hard ware Diagnostics * Provided by DELL* . It is definitely has something to do with Ubuntu. I know that for sure, because I remember running an update and BAM . That was it for the screen. How could I restore my screen back to Life ? I have a Nvidia Graphics Card.

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  • Setting up wireless drivers in Ubuntu 9.10?

    - by xdya
    I've just installed ubuntu to a notebook, deleting the windows xp that was installed before, so now nothing works I couldn't solve the problem of getting the blank screen with the versions 12.. and 10.. so now there is 9.10 installed, which works fine. Well, it boots up at least. I can't get working the drivers though. I'm totally new to linux, and I've read in some forums that in this version you have to install all of them yourself, because the system won't detect them automatically. Therefore I tried to find the drive for my wireless card, but actually I have no clue how to get it work. Could someone please help me out? So here are the specs: System installed as mentioned: Ubuntu 9.10 Computer: Acer Aspire 3100 Wireless according to laptop specs: 10/100 Fast Ethernet, Wake-on-LAN ready, Acer InviLink™ 802.11b/g Wi-Fi CERTIFIED I would really appreciate some detailed description to setting up my internet Thanks!!

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  • Ubuntu 12.04 Server monitor goes into sleep mode (no display) after fresh install

    - by xamox
    For some reason I can boot and either use Ubuntu 12.04 server edition, or desktop version. I can live boot the disk, I can go through the installer, or even use the ubuntu alternate installer. But for some reason after the install completes and I reboot the monitor seems to go back into sleep mode and then never loads the command prompt. This is on an industrial adlink MXE-1300 PC. I've installed ubuntu server fine on other models of adlink machines but this one doesn't want to seem to play nice. To me it seems like if it was a video card issue than I could never even load the installer or run ubuntu in live mode. Any thoughts or troubleshooting tips would be greatly appreciated.

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  • How do I get a Realtek Wireless USB Airlink101 AWLL5088 working?

    - by Tobias_Mann
    I am running Ubuntu 11.10, 32bit. I ordered them a Realtek Airlink101 AWLL5088 based upon the relative ease for linux installation. I am having trouble installing the drivers. I copied the drivers to /usr/src/ and ran sudo ./install.sh from that director listed above. I have tried ndiswrapper, and allowing the default drivers, but with no luck. It seems to continue to try and use the default free drivers, even though I have blacklisted them using the guide described here. There was no error, I was asked which card I was using. I looked at the packaging and at the support page, and guessed number 2, allowed to finish, and rebooted. It continued detect the wireless network after the reboot, but would never complete the connection. I would appreciate any feedback. I am kind of stuck trying to figure this out.

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  • Creating a WARP device in managed DirectX

    - by arex
    I have a very old graphic card that only supports shader model 2, but I need shader model 3 or up for the app I am developing. I tried to use a reference device but it seems to run very slowly, then I found some samples in C++ that allows me to change to a WARP device and the performance is good. I am using C# and I don't know how to create such type of device. So the question is: how do I create a WARP device in C#? Thanks in advance.

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  • Is it okay to rollback code if your client refuses to pay you?

    - by JustinY
    A friend of mine did some contracting work to add localization support to an existing mobile app. He was not contracted to add any other features or fix any already existing bugs. He has finished his work, but the client refuses to pay him because of an already existing bug that he hasn't fixed. The only card my friend has left is to rollback the server code to the state it was before he began working, which will probably break the mobile app and hopefully force the client's hand. Is this legal? Is there a better way to handle the situation?

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  • How to set up multiple GPUs (12.04)?

    - by Brother Erryn
    I have two GPUs: one Intel i915 integrated, and one NVIDIA 560 Ti. This is NOT a hybrid setup, nor a laptop. In Windows 7, each card is connected to a different monitor, with the NVIDIA doing any "heavy lifting". For the life of me I cannot get Ubuntu to recognize the i915, but when logging off or rebooting, the shutdown actually appears on the i915. lshw lists both. I'm running the "current" NVIDIA drivers (not the experimental), but Displays calls its monitor a "Laptop". Is this even possible under Ubuntu? The only things that even looked like potential solutions were for laptop hybrid setups and used Bumblebee, but that doesn't seem to apply here.

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  • OpenGL: Drawing to a texture

    - by Danran
    Well im just a bit stuck wondering how to draw an item to a texture. Specifically, i'm using; glDrawArrays(GL_LINE_STRIP, indices[0], indices.size()); Because what i'm drawing via the above function updates every-frame, i'm just totally not sure how to go about drawing what i have to a texture. Any help is greatly appreciated! Edit: Well unfortunately my graphics card doesn't support FrameBuffer Objects :/. So i've been trying to get the copy contents from backbuffer method working. Here's what i currently have; http://pastebin.com/dJpPt6Pd And sadly all i get is a white square. Its probably something stupid that i'm doing wrong. Just unsure what it could be?

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  • Ask the Readers: How Do You Share Your Photos?

    - by Jason Fitzpatrick
    It’s easy to snap away and fill up a memory card, but not quite as easy to share your best pics with your friends and family. How do you get your pics from your camera to your friends’ monitors? This week we’re interested in hearing about your favorite photo sharing tools and techniques. What’s your workflow for getting your photos from your digital camera to the virtual desktops of friends around the globe? Sound off in the comments with your favorite resources, applications, and photo sharing tricks. Make sure to check in on Friday for the What You Said roundup to see how your fellow readers get the job done. 8 Deadly Commands You Should Never Run on Linux 14 Special Google Searches That Show Instant Answers How To Create a Customized Windows 7 Installation Disc With Integrated Updates

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