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• AMD Catalyst diskless cluster

  - by Nathan Moos

  I'm using Ubuntu 13.10 to set up a diskless compute cluster. When I use the procedure detailed in https://help.ubuntu.com/community/DisklessUbuntuHowto, I successfully am able to boot all four nodes. However, once I install Catalyst, I immediately have problems: only one diskless node boots properly, with the other two hanging while attempting to start X. My assumption is that my Catalyst build was somehow specific to the node which I booted from first, which somehow prevents the other nodes from loading Catalyst. Can anyone provide hints to help solve this? Thank you in advance!

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• Is there any difference between processor and core?

  - by Salvador

  The following two command seems to give me different information about the same hardware srs@ubuntu:~$ cat /proc/cpuinfo | grep -e processor -e cores processor : 0 cpu cores : 4 processor : 1 cpu cores : 4 processor : 2 cpu cores : 4 processor : 3 cpu cores : 4 srs@ubuntu:~$ sudo dmidecode -t processor # dmidecode 2.9 SMBIOS 2.6 present. Handle 0x0004, DMI type 4, 42 bytes Processor Information Socket Designation: LGA1155 Type: Central Processor Family: <OUT OF SPEC> Manufacturer: Intel ID: A7 06 02 00 FF FB EB BF Version: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz Voltage: 1.0 V External Clock: 100 MHz Max Speed: 3800 MHz Current Speed: 3300 MHz Status: Populated, Enabled Upgrade: Other L1 Cache Handle: 0x0005 L2 Cache Handle: 0x0006 L3 Cache Handle: 0x0007 Serial Number: To Be Filled By O.E.M. Asset Tag: To Be Filled By O.E.M. Part Number: To Be Filled By O.E.M. Core Count: 4 Core Enabled: 1 Characteristics: 64-bit capable Until today I thought I had a single processor with 4 independent cores. I also thought that within each core can be used different threads.

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• Sound card stop responding

  - by Merianos Nikos

  A few days ago I installed the latest version of Ubuntu in a computer of mine, that it has installed the "Sound Blaster Audigy 2ZS". After the installation and up to yesterday everything was excelent. Yesterday I installed the latest Ubuntu updates and today I had several issues. First the mouse was not responed as should be, but after restarted my computer everything was fine with mouse. Next was my sound card. For now I do not have sound at all :( I don't really know what's wrong. Does anybody has any idea on how to solve that issue, or from where to start, to find a solution ? If there is no any available solution for that issue, can I remove the latest updates that installed yesterday ? Kind regards Merianos Nikos

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• I cannot see the drives on my computer

  - by Joseph

  I'm a new Ubuntu user and I installed this Ubuntu 12.04 fromn a usb stick. It all went fine(I think) but as I notice, there are no drives shown on the menu. I tried some command in the terminal to see if the drives are available and yes, they are available. My problem is how to make these drives show up on the menu above. Sorry if this question is somewhat vague. (I removed the image because I am not allowed to add an image because I have insufficient reputation)

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• Not getting auto login page on my Hathway internet connection

  - by Vasu

  I am using firefox browser and my laptop is DELL Inspiron 1545. I am using Hathway internet connection. When i switch on my internet modem and try to use(browse any website), for the first time in a day it will redirect me to Hathway's login(something like "login.hatyway.com/.....") page automatically. It is working fine in windows but not in Ubuntu 11.10. So I go back to windows every time and then login and then i come back to ubuntu to use. Could you please let me know if there is a solution to this problem.

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• How do I reopen an instance window once it has disappeared from desktop?

  - by Mohamad

  I'm new to Ubuntu. I use Skype and often the main window just disappears from my desktop. The Skype instance itself is still running in the background. I know this because I can see its notifications on the bottom right side of the screen. If I click on the Skype icon again, Ubuntu will launch a new instance instead of maximizing the running instance. Of course this will not work because Skype will not let you sign in: Another instance of Skype may be running. How do I refocus/bring to the foreground the existing Skype instance? In Windows, you can restore running instances through the taskbar. I've tried cycling through open windows, but the running instance window is no where to be seen.

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• HP 6735s Brightness hotkey problem; where is brightness panel?

  - by Paul

  I have installed ubuntu 11.10 on my laptop hp 6735s. The screen is often too dark and i want to make it brighter, although the hotkeys Fn+F7/F8 are not working. I have tried some things: Firstly it appears that sometimes they are in fact working, after reboot they either work and continue to do so or they don't. I've read about a brightness applet; but where can i find or install it? I have tried some grub options; acpi_osi=Linux and acpi_backlight=vendor but nothing changes. I don't want to add another question but since it might be related: my laptop also gets quite hot, i'm having doubts whether ubuntu connects to the available sensors and cooling plans (or how does it work???); sensors (or psensor) only shows 2 sensors both named temp1. Any help is greatly appreciated! Paul

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• Internet stopped working suddenly on 12.04

  - by Daniel

  My laptop was running smoothly until yesterday. Today, I can't connect to the Internet at home anymore. I am only able to access the router, but no Internet access. A have a Dell Latitude E6320 with Ubuntu 12.04. At my job, I don't have any problems connecting this laptop both via Wireless and Ethernet. At home, if I try connecting it through Windows, it does work fine. I even checked the MAC address and it's OK. My other laptop, which also runs Ubuntu, is not facing this problem. I have already tried to restart and downgrade network-manager package and its dependencies. Can anyone help me please? I am afraid, I will have to reinstall everything.

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• Windows Error After Wubi Install

  - by user106563

  The initial install on my laptop was Windows 7. I installed Wubi on Sunday - the install seemed fine. I was able to log in and use both Ubuntu and Windows. On Monday I started receiving the following error in Windows: windows cannot access the specified device path or file This occurs on every link I click on - essentially rendering Windows unusable. I do not experience the same problem when Windows is started up in safe mode. I have tried numerous virus scans (Malware bytes, Avg, AdAware) and have removed various trojans etc. Windows is still unusable. Ubuntu seems fine so far. My question is, can this error be attributed to the Wubi install?

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• Nginx unable to connect

  - by nish

  I am referring to this link to install Nginx on Ubuntu: Installing Nginx With PHP5 (And PHP-FPM) And MySQL Support (LEMP) On Ubuntu 13.04. sudo su — Runs OK. apt-get install mysql-server mysql-client mysql-client is already the newest version. mysql-server is already the newest version. Yet when I try http://localhost on Firefox it does not show the welcome page. (That is Nginx is not running). Unable to connect Firefox can't establish a connection to the server at localhost.

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• First time user here

  - by Brian

  Never used Linux before but I decided I want to start somewhere and Ubuntu seemed like the right place to start. I burned the 64bit version iso onto a CD and installed it onto a fresh new hard drive I got and it installed nicely or so I thought. First major problem was the fact that the screen slip oddly, second when I tried to log in everything just kind of froze, I could still move the cursor but thats it. I'm not too tech savy but I can follow instructions and any help given would be greatly appreciated. I am considering dual booting it with my other hard drive that has windows 7 on it but I'm afraid I might mess that up, plus if I do it that way I wouldn't know how to get rid of Ubuntu if I decide its not for me.

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• Need to adjust touchpad edge scroll area

  - by MikeVB

  I have an Acer Aspire that I have dual booting XP and Ubuntu. On the Windows side, the driver allows you to set how close your finger has to be to the edge of the touchpad before it goes into scroll mode. In Ubuntu I don't have the option (at least in the GUI) to change the scroll area on the pad. Is there a conf file or other way to change this? I'm constantly getting into the scroll area during normal usage. I would like to leave it on without losing so much pad area to the scroll feature. Thanks a lot.

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• How do I change my 1080p external monitor from portrait to landscape on an Eee PC 1000H?

  - by Acky

  Hi I have an EeePC 1000H netbook with a Samsung T22A350 1080p 22" external monitor. I've just installed Ubuntu 12.04 and I mainly use the external display but when I select 1080 from the dropdown list, my only options are for a rotated portrait. My neck's non too supple, so tilting my head for extended periods is not really viable. :-) Any ideas on making ubuntu display 1080 normal landscape? It must be possible as using a gparted boot cd does it perfectly. Any help greatly appreciated. Cheers!

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• After reinstalling ATI graphics drivers, my keyboard and mous aren't working anymore

  - by Lifelike27

  On Ubuntu 11.04 I tried to install the open source drivers for my laptops ATI Mobility Radeon 5470M but I messed that up a bit and lost xserver. Now I've managed to solve that problem with this and by downloading the ATI proprietary drivers and install those manually. Now, when Ubuntu loads up I get to the login screen but I can't use my mouse or my keyboard (usb keyboard and mouse doesn't work either). If I use the recovery console, then login with that and then run 'startx'. I can login fine (though Unity doesn't show, the graphics seem to be working because it shows the fading animation of libnotify), but I can't type or move my mouse.

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• Failure to boot after suspending

  - by kosmonavt

  I have two issues with Ubuntu 12.04 (upgraded from 11.04, 11.10) on my ASUS K52De laptop. First issue: Booting fails, if it follows a suspension, then a wake-up and finally a shut down. If I realize this sequence, then, during the boot I see the Asus logo and after that I see only a blinking cursor instead of grub2. Then I have to recover grub2. Second issue: Sometimes, my laptop doesn't shut down. It freezes on the Ubuntu logo and I must turn it down with power buttom. Thank you.

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• Does anyone know of any work being done on EEE transformer?

  - by Matthew

  I recently got a (few) nexus 7's to install and enjoy ubuntu on. Which is great and all, but from what I've read online and the issues I have experienced myself the Nexus 7 has way to many serious defects. Such as: Audio jack not working Screen lifting Screen ghosting out (The very first one) Instant drop in battery life (happened to one of mine) Internal memory malfunctions (The latest issue I've had, the internal memory went completely bad) If you need to read other horror stories you can simply check out XDA developers forum, lots of people are having issues. I'd really like to enjoy ubuntu on a different device, I think the Transformer prime would make way more sense (usability and stability wise). Have there been any hacks/mods to get it running on this device?

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• Corsair Hydro i series cpu cooler fan control

  - by user214690

  Im relatively new at Ubuntu and have found an answer to basically every single issue ive ever had thru this site... Otherthan this. I have been toying with the idea of a Corsair h80i for my dual boot system (win7/U12.10) and mostly use it in ubuntu. I have done some research on the interweb regarding fan control in linux and nearly ran up short untill I came across this thread: http://ubuntuforums.org/archive/index.php/t-2096166.html And it seems to have worked around it. (altho I have not tested it for myself) Is there any program/library/source that can be used to control the fans without having to MacGuyver it??

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• How to install vmware tools?

  - by Tom

  I installed my Ubuntu in vmware, no I need install vmware tools, I got error: Searching for a valid kernel header path... The path "" is not valid. Would you like to change it?[yes] In CentOS, I run the following command to resolve this issue: yum install gcc-c++ yum install kernel-devel yum install kernel-headers yum -y update kernel But I don't know how to do in Ubuntu. Please help. Update I have tried the following command but nothing changed,still got error: Searching for a valid kernel header path... The path "" is not valid. Would you like to change it?[yes] sudo apt-get update sudo-get install build-essential linux-header-$(uname -r) sudo ./vmware-uninstall-tools.pl sudo ./vmware-config-tools.pl sudo ./vmware-install.pl Issue Changed: Run sudo ./vmware-uninstall-tools.pl, and delete the folder of /etc/vmware-tools then, run sudo ./vmware-install.pl Now I can successfully install vmware-tool.After restart, I can see folder of /mnt/hgfs, but can't see my shared folder.

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• I'm new, Help! Some basic troubles

  - by Guradani

  i'm new in ubuntu and i'm having some trouble. 1) I downloaded Eclipse installer from official page but I don't know how to install it without the software center or downloading it again. 2) I also downloaded apt Wally (to change wallpaper periodly), but now it doesn't appear in searches, only when I use the console. How i make it appear again on the side launcher?? Also, is there a basic like tutorial for ubuntu?? Or should i learn as i need it?? Thanks for the help ^^

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• Disable printing extraneous job info when I print a images

  - by pgrytdal

  As of 10/11/12 I this is still a problem. Peterling, that link you gave me was for Windows. Not Ubuntu. I need to know how to do this in Ubuntu. Whenever I print off an image, before the actual image prints, I get these weird "print job" sheets. (I named them that, because I don't know what else to call them.) They say something like: Media Limits: 0.12 x 0.38 to 8.38 x 10.38 inches Job ID: Officejet-Pro-L7700-64 Driver: hp-officejet_pro_17700.ppd Driver version: Description: HP Officejet Pro L7700 Make and Model: HP Officejet Pro L7700, hpcups 3.12.2 Printer: Officejet-Pro-L7700 Created at: Fri Sep 28 14:12:53 2012 Printed at: Fri Sep 28 14:12:53 2012 How do I fix this so the page doesn't print?

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• kernel mem parameter

  - by Ashfame

  As a last resort to my question, I am yet to try the mem parameter of kernel to force it to use the specified amount of RAM. Short Summary - I can only see 3.2GB RAM on a 64bit OS and am not sure ifs a hardware limitation, so wants to try as I found a post on Ubuntuforums. My question is if its ok to play with my resident Ubuntu install or should I be using a live bootable usb? What values do I try (I have 6GB with only 3.2GB being usable) and how to keep it safe? I don't want to burn any of my hardware component at this point of time or make the system unbootable. Running Ubuntu 11.10 with kernel 3.0.0-13-generic

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• How to copy a DVD [closed]

  - by ring0

  I was offered a couple of DVDs from abroad that cannot be played on my player due to region filtering. So I tried k9copy to copy the DVD (it removes the region automatically). But for some reasons the copy does not work well (followed the instructions from here but the generated ISO file does not work / not even in media player - additionally there are many bugs in k9copy 2.3.5 (latest from Ubuntu) showing that it is not a reliable software, at least not on Gnome...). My question is simple: how to copy a DVD on Ubuntu, the copy/ISO being as close to the original, but without the region code.

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• Sharing samba-folder with root access

  - by Industrial

  Hi everyone, I have a staging server in my network running Ubuntu server 10.10, being my main development area. As I need to access the files in the Apache root from other computers in the network, I have setup samba with the following settings: [www] comment = Apache root www path = /var/www writable = yes force user = root force group = root On the host computer, running Ubuntu 10.10 desktop, I am trying to mount the drive with a bash file looking like below: #!/bin/bash sudo mount -t cifs //192.168.1.5/www /media/www/ -o username=myusername,password=mypassword,rw,iocharset=utf8,file_mode=0777,dir_mode=0777 What happens is that I get mount error(13): Permission denied Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) thrown in my face whilst trying to execute the mount. I've done exactly the same, with exactly the same smb.conf & mount-bash file on another computer in my network, but this just wont work. What am I doing wrong? I am running out of ideas.

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• 12.04 Install Freeze, Blank Cursor Page

  - by smmilke

  I have been trying to install Ubuntu 12.04 via a live CD and most recently with the windows installer I found on line. The windows installer seemed to be working; I selected the partitioned portion of the drive on which to install Ubuntu and started the install process. The process freezes on a page with a flashing cursor and nothing else displayed. I have read about similar problems but have not been able to implement any of the solutions people have discussed. Any ideas on what might be hanging up the process, or how to get a better idea of what is causing the problem would be helpful. If anyone has had this problem and has a solution it would be GREATLY appreciated!

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• How do I get Catalyst 11.10 with ATI Radeon Mobility HD 5470 working on an HP DV7?

  - by S Kumar

  I have a HP DV7 with a HD 5470 512M card. Installation of the Catalyst 11.10 is repeatedly failing on a fresh install of Ubuntu 11.10. Catalyst 11.8 proprietary drivers were working well with Ubuntu 11.04. I have tried installing directly from the .run and generating the distribution specific packages. Nothing has worked. After installation which goes through successfully, the system hangs on reboot after the flashing dots. I have to replace the /etc/X11/xorg.conf to get the X working. I have followed instructions as per the http://wiki.cchtml.com/index.php/Main_Page wiki. Request for support to ATI/AMD gives the response that this model is unsupported on Linux by HP :). Updated 14-Nov I have reverted back to the open source drivers which work well enough for me.

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