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• Ubuntu 12.04 nVidia TwinView tearing

  - by Andy Turfer

  I'm running Ubuntu 12.04. Today I just purchased a second monitor (I have a Dell U2711 and a 42-inch Sony TV). I'm running the 295.49 proprietary nVidia graphics driver, my graphics card is a GeForce GTX 460. I am not able to activate "xinerama" with "separate X screens", not sure why. I am able to use TwinView. This works, although it results in severe tearing on the Sony TV. It's as though "sync to vblank" isn't working (I have this set in Compiz and in the nVidia settings). If I disable the Dell U2711 and only use the Sony, everything works fine, zero tearing. Is it the case that "sync to vblank" can only work on a single monitor in Ubuntu 12.04? Is there any way to get rid of the tearing on the second monitor in TwinView mode?

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• Remove Ubuntu 11.10 from Dual Boot Windows XP without XP CD?

  - by Thomas

  I installed Ubuntu on a old Windows XP computer using Dual Boot, i have no XP Cd and desperately need to remove it! EasyBCD does not work on windows XP, iF I just delete the Ubuntu partition all hell breaks loose and i have to reinstall ubuntu to get my XP back. Please help me i am only 12 and i have made a stupid error on my mum and dads computer and will get into serious trouble if i dont fix it soon!. Extra Information: I use the gnu boot loader to choose my operating system, but my mum and dad need my help to open a word document, they have only just grasped double clicking! I installed it off a cd that i made, the computer is 64-bit AMD Athlon with one 160gb hard drive, 512mb ram and a Sis mirage2 128mb shared video card. Its a COMPAQ presario.

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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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• How can I make KDE faster in Ubuntu 12.04. It's very slow

  - by Rizwan Rifan

  I installed the kubuntu-desktop package in Ubuntu 12.04 LTS, but the problem is KDE responses very slowly. If I click on an application's icon to run it, it appears after 10 seconds and sometimes does not appear at all. It hangs all the time. The cursor is almost impossible to follow because of the lag. I have read on the Internet that Unity uses more memory and CPU than KDE. But on my PC Unity runs smoothly and KDE does not. So what should I do to make KDE as fast, responsive and smooth as Unity? My specifications are as follows: RAM: 1.5 GB (DDR2) Processor: 3 GHz Dual Core Graphics Card: Intel HD graphics with 256 MB memory.

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• Ubuntu 14.04 liveusb boot screen graphic errors

  - by user568109

  I am trying to install Ubuntu 14.04 on my Lenovo Y500 laptop. It came preinstalled with Windows 8. I want to install it in a separate partition with a USB drive. I have tried both Unetbootin and universal usb installer. But for some reason the screen after booting is crappy. The screen goes blank after selecting try ubuntu or install. If I try with nomodeset option the screen only displays on a small strip on the top. Which again is split into three. Each seem to be identical. It is not decent enough to begin installation. The graphic card in my laptop is Nvidia GT650M, if it helps. Maybe the problem is related to that. Can anyone help in fixing this error when installing Ubuntu.

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• Broadcom 4365 wireless driver on 12.04 with 3.4 / 3.5 kernel

  - by zaid

  I used this package to install the driver on 3.2 Kernel and it was working perfectly. Unfortunately the system used to freeze randomly with 3.2 kernel so I installed 3.4 kernel, now there is no freezing, the only problem is that my wifi card is not working, I tried to re-install the package, but didn't work. I can see the driver in the "additional drivers" and it say that it is active, but when I execute iwconfig it doesn't show up. I've even tried ndiswraper and that didn't work either. my lspci: 01:00.0 Network controller: Broadcom Corporation Device 4365 (rev 01)

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• What To Do If You Get a Virus on Your Computer

  - by Chris Hoffman

  Whether you saw a message saying a virus was detected or your computer seems slow and unreliable, this guide will walk you through the process of dealing with your infection and removing the malware. While many viruses and other types of malware are designed simply to cause chaos, more and more malware is used by organized crime to steal credit card numbers and other sensitive data. Why Enabling “Do Not Track” Doesn’t Stop You From Being Tracked HTG Explains: What is the Windows Page File and Should You Disable It? How To Get a Better Wireless Signal and Reduce Wireless Network Interference

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• Compiz does not work with proprietary nvidia driver

  - by brandizzi

  I have a ThinkPad T420 with an NVidia Quadro video card. It crashes constantly when I close this lid (if you are curious..) and I suspect on a problem with nouveau drivers, so I installed the proprietary NVidia drivers. Howeer, when I install and use this driver, Compiz does not work. If I start a session with uses Compiz, no window manager/decorator is presented. I just can get Metacity working. Does anyone has any idea about what may be causing this problem?

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• Issues with nVidia GeForce 210 while watching movies

  - by David ???

  Ever since 10.04 I have been trying to resolve an issue with my graphics card - nVidia GeForce 210. I'm having issues when I watch movies on 10.10 - they are jumping all the time, even with Compiz disabled and when that is the only thing I am doing. I have tried the solution to How to get NVidia GeForce GT 210 drivers working on Lucid Lynx? but it didn't work. How can I fix this? Here are the steps I took: apt-get --purge remove xserver-xorg-video-nouveau edit /etc/default/grub to add the line GRUB_CMDLINE_LINUX="nouveau.modeset=0" sudo update-grub Reboot Download official Linux drivers from nVidia site. sh filename-of-downloaded-driver-package

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• Choppy window movement in Gnome 3.4 on Ubuntu 12.04

  - by mjrussell

  I have been using Gnome 3.2 since Ubuntu 11.10 was released and it has always been perfectly smooth and performed extremely well, much better than Unity. After doing a clean installation of Ubuntu 12.04, Gnome 3.4 performs less well. If just one window of a relatively simple application, such as Gnome Terminal, is opened and moved around, the movement is sometimes very choppy, but the rest of the time it's perfectly smooth. The times when it's choppy seem to be when part of the window goes off the bottom or right side of the screen. Also, if there are multiple windows open, it is almost always choppy. These facts suggest to me that it's something to do with the compositor. Unity works perfectly smoothly. Memory usage is only at about 500-600MB, out of 3GB, even with a few things open. The graphics card is the on-board Intel graphics on the Core i5 M450. Does anyone have any ideas what might be causing this problem? Thanks

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• Need a non-X terminal for the nvidia driver installation

  - by broiyan

  When I try to install the nvidia driver for my video card, I receive an error message. ERROR: You appear to be running an X server; please exit X before installing. For further details, please see the section INSTALLING THE NVIDIA DRIVER in the README available on the Linux driver download page at www.nvidia.com. I wasn't able to find the README on the website but how do I create a terminal that is non-X? I am on 12.04.

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• wired connection not being recognised in ubuntu 10.04 lts

  - by arun

  I have windows7 installed on my C drive and ubuntu 10.04 lts on my D drive. When I plud the lan cable (ethernet cable) onto the ethernet card of my laptop, windows7 identifies the network correctly without the need for any manual settings and connects me to the network correctly. Unfortunately, in ubuntu, even after plugging in the cable, nothing happens (on the network side). It is only scanning for wireless networks it seems, and doesnt bother about the wired networks. I tried adding a new wired connection and manually entered the physical address which was displayed when i connected to the network using windows. i entered the phy address, and told it to use auto dhcp and saved the dialog bog in ubuntu network connection. Still there is no change, and ubuntu doesnt seem to recognise anything. please let me know how to work with wired connections using ubuntu, and why my wired cable is not being recognized in ubuntu. thanks. PS: I am pretty new to ubuntu/ linux :)

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• Windows Store now open to lots more developers (120 markets!)

  - by Michael B. McLaughlin

  See the post here: http://blogs.msdn.com/b/windowsstore/archive/2012/09/11/windows-store-now-open-to-all-developers.aspx . This includes individual accounts now so if you tried signing up before and got a message about it only covering company accounts, you can sign up now. Don’t forget to verify your account and setup your payment and tax information. Also, if you are an MSDN subscriber you should be able to get a code from the MSDN site that will give you a free year (saving $49 US) but you will still need to submit some form of payment (e.g. credit or debit card) for verification purposes and so that they can automatically rebill you at the end of the subscription year (unless you’ve cancelled your account for some reason, of course). Go forth and register and make awesome games and apps for me to buy and play and use!

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• nouveu driver logs into unity-2d by default

  - by Ubuntuser

  I have an old system with NVIDIA Corporation NV25 [GeForce4 Ti 4600]. When running Ubuntu , the nouveau driver loads fine but does not log into Unity with compiz. Instead it logs into Unity-2D. Any idea how to enable 3D/ compiz with the nouveau driver. OS: Ubuntu 12.04 Beta2 The nvidia driver is no more available for this graphics card, so have to rely on nouveau. UPDATE: Bug reported on launchpad . See here. There has been no reply as yet to this bug-report - does anyone have any idea how to resolve this? Further information, Also, if I use kubuntu desktop, kwin graphics works just fine. But, the users prefer Unity over KDE so I have uninstalled Kubuntu.

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• Ubuntu 12.10 Help! Everything is incredibly slow

  - by Keith

  I installed 12.10 from usb onto this machine. Intel celeron 2.00 GHz 496MB RAM I had to modify GNU-Grub to read "nomodeset" or i could not see the GUI. I have an Nvidia graphics card. Takes about 2 minutes to boot. The icons on the left of desktop take about 1 min to slowly open their menu. Have a network connection but mozilla is 404 and i cannot update. Where can i find a blow by blow explanation for troubleshooting and repairing this problem?

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• Bad texture on model with different GPU

  - by Pacha

  I have some kind of distortion on the texture of my 3D model. It works perfectly well on an AMD GPU, but when testing on a integrated Intel HD graphics card it has a weird issue. I don't have a problem with the rest of my entities as they are not scaled. The models with the problems are scaled, as my engine supports different sizes for the platforms. I am using Ogre3D as rendering engine, and GLSL as shader language. Vertex shader: #version 120 varying vec2 UV; void main() { UV = gl_MultiTexCoord0; gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; } Fragment shader: #version 120 varying vec2 UV; uniform sampler2D diffuseMap; void main(void) { gl_FragColor = texture(diffuseMap, UV); } Screenshot (the error is on the right and left side, the top and bottom part are rendered perfectly well):

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• problem connecting to wifi at long range

  - by user171849

  I am using a compaq 8510p with internal wifi. The campground supplies an open wifi hotspot, to which I can connect at close range (30 ft) but not at longer range (300 ft). Connecting a usb dongle just confuses things. The dongle tries to lock on to all the wifi networks in my vicinity. They are password protected, but my laptop still tries to connect. I connected a cantenna via usb port and got a signal which said I was connected, but all web pages returned error 'unable to connect to server', despite having three bars showing on the wifi icon. I believe it because the installed wifi card interacts with the usb dongle. If so what can I do about it? I am using Ubuntu 12.04.

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• What is this chargeback scam? [on hold]

  - by Dan Friedman

  We have a scammer that is buying our e-Books and then performing chargebacks. Our e-Books don't have DRM, so if they wanted to resell them, they would only need to buy each book once. But instead, they keep buying the same books over and over again and then performing hundreds of chargebacks. We have created some additional rules in our fraud protection tools to block certain aspects, even though all the info looks legit, and are hopeful this will slow them down. But my question is: What is the scam? If they aren't getting any product and they only get chargebacks for something they already purchased, then they can't get additional money from the credit card company, so then what's their motivation?

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• Cannot get Atheros AR9285 to work on 12.10

  - by user100449

  I've already went through all possible advices and still cannot start my Atheros AR9285 wireless card. I have a laptop Toshiba Portege Z830 where the WiFi already worked under Windows 7. But after migration on Ubuntu 12.10. I'm not able get it work. This is what I see on command lshw *-network UNCLAIMED description: Network controller product: AR9285 Wireless Network Adapter (PCI-Express) vendor: Atheros Communications Inc. physical id: 0 bus info: pci@0000:02:00.0 version: 01 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: memory:c0500000-c050ffff This is what I see on command rfkill list 0: Toshiba Bluetooth: Bluetooth Soft blocked: yes Hard blocked: no 1: hci0: Bluetooth Soft blocked: yes Hard blocked: no Any idea?

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• What to do when Ubuntu 13.10 64-bit does not boot?

  - by Anonymous John

  Ubuntu 13.10 will not boot, it won't even show the grub menu or Ubuntu booting. There is just a purple screen for 20 seconds then a black screen, then the screen says entering power save mode. here are my system specs:Intel DQ965GF Motherboard (OS independant), Intel core 2 64-bit, 12GB HHD (SATA), 200GB HHD (SATA, installed here), 250GB HHD (SATA, Encrypted with LUKS), 3GB DDR2 RAM (DIMM 0 A 1024MB,DIMM 1 A 524MB, DIMM 0 B 1024MB, DIMM 1 B 524MB),2 Rewritable DVD drives (one SATA and one IDE), small floppy drive and car reader, and AMD gallium 0.4. That's all I know from the top of my head, I have no OS to give me more info on the graphics card, but all Ubuntu OSs worked on my PC from 12.04-13.04 just fine. Does this mean will never be able to use Ubuntu 13.10? I think I am screwed.

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• Help me i can't format my usb? i have already tried with mkdosfs and gparted

  - by Mauri Olivares

  I have a MicroSD card in a USB adapter (which plugs into a USB port on my machine, and acts like a USB flash drive). I was using Unetbootin to make this a bootable USB flash drive with Kubuntu. But I needed to cancel while it was working. So I killed the Unetbootin process from the console. Since then, I can't format the MicroSD or delete the folder that Kubuntu made. I have also tried mkdosfs, with no success. I can't mount the drive anymore either? What can I do, to make this drive usable again? Trying to create a new partition table in GParted, as described in Eliah Kagan's answer, does not work. It fails with the error message "imposible crear tabla de particiones" ("unable to create a partition table").

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• Ubuntu 14.04 Unity not functioning, no launcher

  - by user216962

  Yesterday I turned my computer to find that the launcher was missing. In addition, I could not using ctrl-alt-t would bring up a blank white screen. The only terminal could be found by clicking ctrl-alt-f1. I used ccsm to turn on Unity. Unity panel service was working. I installed tweak tool. I did all the troubleshooting I could find related to this subject. Nothing would work. I ultimately reinstalled Ubuntu 13.10. Also, I do not have an nvidia graphics card. I have an intel integrated graphics controller. Some of the troubleshooting I tried were found: Unity doesn't load, no Launcher, no Dash appears ubuntu 14.04 unity desktop without panel and launcher how to fix: no unity, no launcher no dash in ubuntu 14.04 http://ubuntuforums.org/showthread.php?t=2008891

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• notification from additional driver

  - by MAHESH

  today i installed ubuntu 11.10 in my HP laptop well everything goes well installation and updates. i get notification on task bar from additional driver No propritery drivers are in use on this system i will elaborate what i seen on the screen proprietry driver do not have public source code that ubuntu developer are free to modify security updates and correction depend solely on the respnsiveness of the manufacture ubuntu cannot fix or improve these drivers. ATI/AMD proprietry FGLRX graphic driver( post release update) 2.ATI/AMD proprietry FGLRX graphic driver ATI/AMD propreitry FGLRX graphics driver(post release update) tested by ubuntu developers License propreitry 3D accelerated propreitry graphic drivers for ATI cards. This driver is required to fully utilise the 3D potential of some ATI graphic and as well as provide 2D accelerate newer card. guys do i need to active this driver in order to accomplish the complete installation. your response will be greatful

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• HP 655 Notebook (Ubuntu 12.04) wireless internet disabled after running updates

  - by Bastian

  Today the update-manaeger suggested that I should download some updates. So I did. After the updates were installed I had to reboot the system. After the reboot my notebook doesn't see any wireless networks. I was looking for a long time on the internet for answers but non of them applies to my case. I have the idea, it has got something to do with the kernel I am currently using (Linux 3.2.0-55). Is this one new for Ubuntu 12.04? When I boot my system I can choose to use an older kernel (linux 3.2.0-32). When I use this one the notebook does see the wireless networks. This is my network card according to the command lspci: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe Anyone an idea to fix my problems with wireless internet?

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• Ubuntu Wubi Booting Problem

  - by D3s7

  i have a problem with my Ubuntu 12.04 Wubi installation, sometimes when booting, the computer will get to the purple screen without the Ubuntu logo, then will go to a black screen and then lots of white saccaged colors will appear and i will be taken to the login page. But sometimes, it just get stuck on the black screen and does nothing and i have to hard shutdown and retry it until it works. What may cause this problem and why? I can shutdown correctly. Thanks for helping. Edit: RADEON HD 7650M Graphic card with latest available Drivers on amd's driver download site (fglrx drivers caused shutdown problems so i removed them). Screen resolution is 1600x900.

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