Search Results

Search found 16417 results on 657 pages for 'computer linguist'.

Page 161/657 | < Previous Page | 157 158 159 160 161 162 163 164 165 166 167 168  | Next Page >

• How often do CPUs make calculation errors?

  - by veryfoolish

  In Dijkstra's Notes on Structured Programming he talks a lot about the provability of computer programs as abstract entities. As a corollary, he remarks how testing isn't enough. E.g., he points out the fact that it would be impossible to test a multiplication function f(x,y) = x*y for any large values of x and y across the entire ranges of x and y. My question concerns his misc. remarks on "lousy hardware". I know the essay was written in the 1970s when computer hardware was less reliable, but computers still aren't perfect, so they must make calculation mistakes sometimes. Does anybody know how often this happens or if there are any statistics on this?

  Read the article

• Make public webcam. Which protocol, which codec. (Using VLC)

  - by gsedej

  Hi! I want to use my old (1GHz) PC as webcam video stream server (like you can see those road cameras). I thought of using VLC and already tried using http output but it was not really good. Too cpu hungry, too big stream (kBps), not stable... I been reading VLC how-to's but thre is still a question. Which output should I use? Http, RTSP, UDP? I want to make for more than one computer at the same time (multicast). Which codec should be good? PC is not so fast so it shouldn't be too cpu hungry codec. Mpeg2, mpeg4, xvid? how much video buffer should I use (vb=?)? What about setting IP and ports? So I need some help with ideas, but if someone can make a VLC command line it's even better :) Oh, computer has direct internet connection and own IP.

  Read the article

• How do I change local display resolution via SSH?

  - by krumble1

  I have a machine running Ubuntu Server 12.04 LTS and I'm having problems with the local monitor. The Dell flat panel I'm using only displays this message while the computer running: "Cannot Display This Video Mode" and then the information: "Optimum resolution 1280x1024 60Hz". I'm fairly new to using an operating system wholly via command line but I'm learning fast. :) I can access the server fine via SSH so using it is not a problem. However, for where it is positioned at the moment, it would be much more convenient to use the computer locally. I'm just wondering how to change the local screen resolution via SSH to something usable by my monitor. Thanks for your time! BTW: I have also tried switching displays and I still have the same problem. Also BTW: I tried putting in the xrandr command and all I get back is: Can't open display

  Read the article

• ACM Acknowledges Achievement

  Awards recognize innovations in computing technology for industry, education, and society Computing - Computer Science - High-performance computing - IPad - Research

  Read the article

• How to fix "The system is running in low-graphics mode" error?

  - by jokerdino

  Note: This is an attempt to create a canonical question that covers all instances of "low-graphics mode" error that occurs to a user, including but not limited to installation of wrong drivers, incorrect or invalid lightdm greeters, low disk space, incorrect installation of graphics card like ATI and Nvidia, incorrect configuration of xorg.conf file while setting up multiple monitors among others. If you are experiencing the "low-graphics mode" error when trying to login but none of the following answers work for you, please do ask a new question and then update the answers of this canonical question as and when your new question gets answered. When I try to boot into my computer, I am getting this error: The system is running in low-graphics mode Your screen, graphics cards, and input device settings could not be detected correctly. You will need to configure these yourself. How do I fix the failsafe X mode and login into my computer? Answer index: The greeter is invalid

  Read the article

• frequency out of range - please change display mode

  - by Dave

  I just downloaded the latest version of the Ubuntu live CD, and have installed it on a desktop computer (a Fujitsu Scaleo P). Once installed it seems to work perfectly, although there are some updates recommended in the Update Manager. My problem is that, after having installed these updates and restarted the computer, I get this message on my monitor, and no Ubuntu interface is visible: frequency out of range - please change display mode I do not know how to change this when I can't access an interface. Is there a command that will bypass trying to boot the GUI and let me change the display mode via a CLI? I am brand new to Ubuntu and any help on this would be much appreciated.

  Read the article

• Consuming too much power on a Dell 15R

  - by Daniel Davis

  I'm new to Ubuntu, and I've just installed Ubuntu 11.10, and I must say I really like it a lot. I'm getting used to Ubuntu faster than I thought but the only issue I'm having is the power consumption. I have a " dell 15R with BIOS a07" and I uninstalled Ubuntu 11.04 because of some glitches I hated. None of those appear on this Ubuntu but now my computer discharges way too quick. when I check the power icon, it states that I have like 3:45 min remaining, which is fairly the same as what win7 and Ubuntu 11.04 used to tell me but 15 min later I check again and it gives me only 1:15 min remaining. Also, my computer seems to get a lot hotter than it used to. Is there more options to control the power usage on my laptop?

  Read the article

• Kernel won't update automatically

  - by Bucic

  My current kernel is 3.2.0-26 (my main computer) while on another of my Ubuntu computers, with which I didn't fiddle with unofficial updates, it's 3.2.0-30. Yet the Update manager on my main computer doesn't show available kernel updates. It shows other updates though. I suspect is due to the fact that in the past I installed multiple mainline kernel versions (not recommended versions), up to 3.5* series. What I'm after: Either: Fix automatic kernel updates. Or: Learn about a way to check for the latest official ubuntu kernel version and get it manually (I know how to install kernels from debs) What I have already tried: Uninstalled unused kernels including "the generic one without a number".

  Read the article

• installing ubuntu 13.04 along side window 7 64 bit

  - by Shikhar Subedi

  I have a 64 bit computer with windows OS. Here are my specifications: core i3 processor 4 gb ram nvdia ge210 hard disk with 680 gb memory In my windows installation I have C: drive with 104 gb, D: drive with 246gb and E: drive with 246gb memory. My dvd rom is in f: drive. I want to install ubuntu 13.04 64 bit along side windows 7. So i burned the ubuntu 64 bit iso image onto a dvd and restarted the computer. but in the choice for installations, there is no option to select installing ubuntu along side windows. There is an option to install ubuntu inside windows instead. There are other options as well. What should I do to get the option to install ubuntu along side windows. I think the problem is with the number of drives in windows. Please tell me how should I make a partition in windows 7 to install ubuntu. Thanks a lot..

  Read the article

• xubuntu 12.04 restarts after suspend - only from my account

  - by Yoav Aner

  After installing a clean xubuntu 12.04 I noticed that when I suspend, the computer suspends and turns itself off (you see the lights go off, and a click sound from the HD or fans), but then about 2 seconds later it turns itself back on again... The odd thing is that: It doesn't happen when booting from the liveCD I created another user account. When I log onto this account I can suspend fine. The computer stays off until I press the ON button When I remove my .config folder and it's clean - I can also suspend without problem on my account So it seems that something in my user config is causing this, but I can't work out what it might be. I tried diffing the two .config folders, and also all processes running with one account compared to the other (ps -ef |grep <username>), but couldn't find anything obvious that might be causing this...

  Read the article

• Is it possible to configure Apple's Magic Mouse to be recognised on start up?

  - by Dave

  This question may apply more roundly to all bluetooth mice but in my case I am dealing with an Apple Magic Mouse. I have followed the set up instructions here; https://wiki.ubuntu.com/Multitouch/AppleMagicMouse closely. I have even removed the mouse and started from scratch more than once repeating each step described carefully. Every time the computer is started it does not see the Magic Mouse by default. I need to keep a wired mouse connected to the computer at all times which I use to log in with then connect the Magic Mouse, in a somewhat counter-intuitive exercise! Any help would be greatly appreciated.

  Read the article

• No GUI before login on Ubuntu 14.04

  - by Pablo Chinchilla

  After I installed Ubuntu 14.04 as the only OS on my computer on nomodeset to install the Nvidia drivers for my video card. I installed it and all is working properly. The only problem that I have is that when I turn on my compurter I only see command lines instead of the Ubuntu logo. After that the login screen works in a proper way even with the GUI. I only want to get the Ubuntu logo instead of the command lines. PS: when I turn off my computer, the same thing is repeated.

  Read the article

• Network connection on an Acer Aspire 5253?

  - by fuquam

  Brand new to Ubuntu and PCs for that matter. I've been a Mac user all my life but wanted to try Ubuntu on the cheap, so I bought an Acer Laptop 5253-BZ893 and i got Ubuntu 10.10 installed with no problem. The only problem i have is, that i get no network connection options, wired or wireless. I just get No Network Devices Available. The computer came with Windows 7 installed and i am able to connect to my wireless network fine using Windows, so i know the computer works. Also i've been searching forums and google for hours trying to figure out why I can't get a network connection in Ubuntu but so far no luck. Any suggestions? Thanks in advance.

  Read the article

• Installed nvidia graphics driver (current, 8800GTX) has issues, how do I disable/uninstall it?

  - by Craig

  I installed the restricted nvidia graphics driver (current) on my computer, then restarted to finish the install. Upon reboot I got some prompt about there being an X server problem, It told me to try auto-fixing or something, none of its options worked, they all failed horribly and caused the computer to crash immediately on selecting any of them. I decided to re-install. Again I got in, downloaded updates, and installed the driver. This time upon boot the X-server immediately crashes and im brought to tty1. If I hit ctrl+alt+F7 I see a beige-background prompt says the usual about checking battery state, pulse audio etc., you see right before the x-server starts. According to X (if I do sudo startx) there are no displays, and the nvidia graphics driver is not working. First off, how do I set ubuntu back to the default driver (I have only a CLI right now -.-), then how do I install a more appropriate nvidia driver

  Read the article

• Installed Ubuntu using WUBI due to lack of CD Drive

  - by Chantelle

  I have installed 12.04 via WUBI because my computer does not have a CD Drive. Is there any way that I can delete Windows 7 from my computer and use the whole HD for Ubuntu? I ask this question because for one reason or another I cannot boot from a boot-able USB stick (either in Windows or Ubuntu, however the USB port works because I am able to use my cell phone's tethering plan using all the USB ports to connect to the Internet). Edit: Just found out the problem. Eee PC Model 1018p's do not boot from any format other than FAT and FAT16 and not FAT32.

  Read the article

• Is the Windows Start button an example of poor mapping? [migrated]

  - by user336359

  In my recent course on HCI, I've been told that start button on Windows systems is an example of poor mapping. The reason for that, as explained in materials, is that it doesn't start anything, but rather reveals a menu. I think that this is only valid if you approaching this from low level of abstraction (meaning that the button must start something). If you on the other hand take a view on this from higher level of abstraction, as of "Place where I start most of my tasks", i.e. This is the place where you are start*ing the task of switching off your computer This is the place where you are start*ing the task of searching for something on your computer This is the place where you are start*ing the task of running a program This is the place where you are start*ing the task ... Then I think it makes perfect sense and has perfect mapping. Is this a sensible interpretation?

  Read the article

• How to install Ubuntu using a USB stick?

  - by J. N.

  I cannot install Ubuntu 11.10 from a USB stick. It doesn't boot to Ubuntu page for installation but remains on Windows 7. I've downloaded the 11.10 version iso file and burnt it to a USB stick. After I inserted it, the USB stick is a symbol of Ubuntu installation and I clicked wubi to try to install it. But it didn't boot to Ubuntu but stayed on Win 7 after restart. It occurred error and said "windowsBackend" object has no attribut "cd_path" when I chose "Help me to boot from CD". I thought it's the problem of my computer model (acer travelmate 8481), but it can't boot on an old computer using XP as well. How can I solve this problem and install Ubuntu to replace Windows?

  Read the article

• Backlight turns off when launching Braid

  - by tone0511

  I have Ubuntu 12.10 on Acer Aspire 4736z and I installed Braid. When I have just turned on the computer, login and then launch Braid right away, it works just fine. But when I have already been using the computer for some other tasks like browsing or typing on Open Office after booting up and then decide to play Braid, the backlight turns off and I cannot turn it back on using the screen brightness control buttons. I have uninstalled and reinstalled Braid but it's the same. Please help me. Thanks.

  Read the article

• How to install Radeon X600 driver

  - by mmrs151

  I am completely new to Ubuntu and now running into so many problems regarding my display. I will be so grateful to the community to help me out and keep me loving Ubuntu. When I run lspci | grep VGA I get the following output 01:00.0 VGA compatible controller: ATI Technologies Inc RV380 [Radeon X600 (PCIE)] I am not sure if it means the driver is installed. Now the problem is I can not change the resolution like I can do in windows. I wanted to use dual monitor but it can not detect dual monitor. The monitor option in the preference shows 'Unknown' I tried to use a VGA switch for my ps3 and computer, but the computer is stuck with 1024x768 resolution. I have been trying for last three days, couldn't figure out anything. Now asking for you wisdom to get my display work. Regards, MMRAHMAN

  Read the article

• Some menus are in Chinese/Japanese!

  - by harisibrahimkv

  Yesterday I shutdown my computer and today when I powered it on and logged in to 12.04, certain strings are in Japanese/Chinese (I don't know how to differentiate between the two). The strings are: Applications, places menu selector in my panel. Under 'places', the 'Home folder', 'Desktop', 'Computer'. The menus in VLC! Certain applications like 'sound converter', etc. How can I change everything back to English? I'm using Gnome classic in Ubuntu 12.04.

  Read the article

• Full brightness and keyboard backligh at boot

  - by joelalmeidaptg

  I own an Asus N56VZ, and each time I start Ubuntu (13.10 and prior versions) my screen brightness and keyboard backlights reset their values to the max. Ubuntu doesn't save my settings on reboot. I was wondering if someone could help me with this? It is horrible when, at night, I turn on my computer - it is like looking directly to the sun, and it hurts my eyes. I tried googling and none of the pages I found actually helped. I think my issue might be grub-related. I have a dual-boot with Windows 8.1, so before I start my computer I see grub to choose my operating system. My screen starts at full brightness as soon as I reach grub. Maybe he is making the OS forget about my last values, overriding it with its? Does someone knows how to solve this? Thanks in advance :) PS: I'm using bumblebee with Nvidia driver 304, but this issue existed before I installed it.

  Read the article

• Help! Installer crashing

  - by Mike

  I had ubuntu 12.04 installed on a Satellite l635. I wanted to start over with a fresh install because I had experimented with a bunch of different things, and computer was getting glitchy and random freezes. I used the same iso I used for original install, and it keeps say the installer crashed with a erron5 input/output error. Tried an older iso for 11.10 I had used in the past with same issue... To see if it was disc or computer (not a great idea) I tried the 12.04 iso on another laptop. Now I have 2 laptops with no os. Both discs however live boot on both systems. PLEASE HELP! I've searched forums and can't find the same problem.

  Read the article

• Can my machine run Ubuntu( kubuntu | xubuntu | mint ) 12.04 WELL?

  - by Steve

  I have a 9 year old computer packing the hardware listed below. My question is, can I run 12.04 ( Ubuntu, Kubuntu, MINT or Xubuntu ) WELL? I was running Ubuntu 10.10 and I upgraded to 12.04 by going through each release via the update manager: 11.04 - 11.10 -12.04 During the installation process for 12.04 I saw an error message that there was an error installing and setting up part of the kernel. Later, when I tried installing a package in synaptic, I got another error message mentioning the kernel. When I rebooted, I got told somehting about my video and graphics was not configured properly and that I would have to do it manually ( like I know ). It gave me the option to enter the system in low graphics mode, but it just hanged. I had an old livecd of Xubuntu 10.10 around so I used that to get into my computer and copy data over to an external hard drive. I think tried to install Xubuntu 10.10 from the livecd, with the option "download updates" checked. The install process moved along a bit, then halted for about 5 hours. I rebooted my machine and tried the Xubuntu 10.10 installer WITHOUT the option to "download updates". The install completed in about 15 minutes. So, all of that is making me wonder if there is someting about 12.04 that does not like my hardware. I'm willing to try again, but only if I know I will not have to spend hours just to get to an error message and a hosed up system like I did last night. I also think I have a lot more RAM than is being reported in the output below. I had extra ram installed last year. I'm not good with the command line readouts, but there seems like there should be a lot more. I wasn't thrilled with Unity. I am willing to try Kubuntu 12.04. Will I run into the same problems? What is the highest version of a *ubuntu can I upgrade to? Thanks CPU Model: Intel(R) Pentium(R) 4 CPU 2.53GHz Frequency: 2533.223 MHz L2 Cache: 512 KB Bogomips: 5066.44 Numbering: family(15) model(2) stepping(7) Flags: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe up pebs bts cid RAM ~$ free -mt total used free shared buffers cached Mem: 1506 891 615 0 91 521 -/+ buffers/cache: 278 1227 Swap: 1609 0 1609 Total: 3116 891 2225 Video Card 01:00.0 VGA compatible controller: nVidia Corporation NV18 [GeForce4 MX 440 AGP 8x] (rev a2) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. V9180 Magic Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 16 Memory at fd000000 (32-bit, non-prefetchable) [size=16M] Memory at f0000000 (32-bit, prefetchable) [size=64M] Expansion ROM at fe9e0000 [disabled] [size=128K] Kernel driver in use: nouveau Kernel modules: nouveau, nvidiafb Motherboard Intel 845PE ATX 533FSB DDR333 USB2

  Read the article

• debian (stable), google chrome, sencha and tranparency [closed]

  - by Kim Alders

  I am a bit unsure where to post this, but i guess it should be here, as it has to do with rendering in a browser. We have a sencha touch 1.1 application running in Google Chrome. On mij own computer (ubuntu) there are no problems. On the touch screen attached to a computer running debian-OS, transparency is shown as semi-transparent. It happens on sliders. Sliders have a button on them. This button is rendered bij sencha with CSS. It is NOT an image. Anyone has any idea how to get it 'nice' on debian too

  Read the article

• how to avoid workaholic tag

  - by Shirish11

  As we all know a programmer just needs a computer and a network connection. When these things are available at your disposal you can program anywhere in the world. Now this is causing me a bit of problems. Since its not necessary to work at your workplace only you are asked anytime of your vacation or week-off to help out the client on reported bug. Also if you do enjoy doing it at your pass time, any one seeing you stare at the computer may treat you workaholic which I don't enjoy. How do you make them realize that its not just about the work.It can be a hobby also. In my understanding a workaholic is a person who works to earn but an enthusiast is the one who works to learn.

  Read the article

< Previous Page | 157 158 159 160 161 162 163 164 165 166 167 168  | Next Page >