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• Cannot get laptop wifi to work in ubuntu 12.4

  - by Coda

  Hi i have a Toshiba Satellite L645D-S4106 laptop and i recently installed ubuntu 12.4 on it and i cannot get the wifi to connect for the life of me. When i tried ubuntu out before installing it, the wifi worked while windows was still installed on it. Then i installed ubuntu and now there is no wifi. I can't even flip the wifi network switch to the on position. I installed the driver from realtek for the linux driver and still nothing. Doing rfkill list all shows soft blocked: no and hard blocked: yes. Can anyone help me :p haha very frusterating. It probably is something very dumb. Thanks

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• Matrix camera, movement concept

  - by NoFace

  I was talking to some guy. He said that my movement concept in game is bad. When left or right arrow is pressed I'm scrolling background what makes you feel that player is moving (player's X remains same). So... he told me something about matrix view. I should create all walls and platforms static and scroll only the camera and move player's rectangle. I did a little research in Google, but nothing found. Can you tell me anything about it? How to start? Maybe links, books and resources? My programming language is Java (2d). Thank you!

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• Print over the internet from a remote linux session locally (on a Windows 7 machine) to the shared printers?

  - by obeliksz

  I'm trying to use a linux virtual machine as a file server for windows clients. I have successfully implemented remote file sharing (samba+ssh) with which I am able to print locally with a little program that I made for this purpose (jetforms style)... but I would like to hear about a somewhat more direct approach. How can I attach the printers to the server, so that I can for example open a file on the remote session and in the print dialogbox I would see my local printers (on the machine from which I have established a remote session)? I guess there should be some kind of putty tunneling, but dont know how. I have a windows 7 machine locally; there is a CentOS 6 VM over the internet. It has ssh, cups, and samba. I have found a question which asks the opposite: there is a windows based server to connect form linux but that windows has a domain, mine is just a simple windows workstation that is behind NAT and has a dynamic IP. That question is: Print from Linux to Windows networked printer.

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• What can I learn to build a (kind of) recommendation system?

  - by lsmagalhaes

  I'm learning how to develop an android app (nothing serious, just for learning and fun), so I devised the following goal: an app that learns with users actions and, some time later, starts to suggest some useful things. For example: The user add some notes daily, in the morning, and mark some of them as done generally on thursdays and sundays, at evening. Based on that behaviour and the relation of the notes marked as done, the app will prioritize notes that are more propense to be marked, and avoid notifying in days where no note is marked. This is a silly example but I think it ilustrates well what I want to do. I know this is a matter of machine learning, but I don't know where I should start learning. To anyone interested, I'm build a backend in Python, so any libraries or frameworks in this language are very welcome. The frontend, by the way, is sencha touch + phonegap.

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• Unity does not load after update

  - by Kenpachi

  There is no unity dash or nothing after I updated my system last night. System Information : Distributor ID: Ubuntu Description: Ubuntu 14.04 LTS Release: 14.04 Codename: trusty Kernel Version : 3.13.0-27-generic And I have NVIDIA drivers 331.67 installed. I have also tried to fix this by following the advice from this post : Unity doesn't load, no Launcher, no Dash appears But no luck. In the CompizConfig Settings Manager, Ubuntu Unity Plugins is enabled, but no unity, even after a reboot. If there is a way to retrieve the list of packages which got updated the last time, please tell me so that I can post them here.

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• Get Compiz working on x1300 ati

  - by wdkrnls

  Hi, I have Ubuntu 10.10 installed on a thinkpad T60 with an ati mobile x1300. Ubuntu isn't loading any proprietary drivers and compiz doesn't work. A google search turned up nothing. Sure, some people reported "bad performance", but I'm not getting any "performance" with compiz and these post were all for previous editions. I'm new to messing with ati drivers. Is there a way to make sure xorg-video-ati is loaded? Do I have to add any voodoo lines somewhere in /etc/X11/? Did anyone else have this problem? Thanks for your help!

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• Multiple copies of JBoss acting as one? [migrated]

  - by scphantm

  I have a few ideas how to solve the problem, but one question about jboss clustering. Please, keep in mind these applications were written very poorly, that is why they require so much memory and there is nothing i can do about that right now. So, I have clustered applications on Jboss where the application was small enough to run on one box. Meaning that one machine could handle the load. But, the current problem is that i have been asked to run several systems on the same environment. Our machines are virtuals and due to limited hardware, are restricted to 8 GB RAM, which gives jboss about 7GB to itself. Unfortunately, that isn't enough to run the group of applications. Im constantly getting heap errors and crashes. If i cluster 2 or 3 jboss instances together, can i run applications that consume more resources than a single box can handle?

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• Debugging random reboots

  - by M132

  I'm running Ubuntu 14.04 with 3.16.1 kernel compiled from source, and when I leave my PC running for a long time, it always reboots after about 4-8 days. Nothing is displayed on the screen, everything just freezes for about 3 seconds (and if there was any sound playing, it keeps repeating over and over), and then reboots. This issue also affects kernels compiled by Canonical's build bots. I already tried to debug it with: rsyslog kexec-tools netconsole kernel module None of them seem to be working however. Are there any better methods to check, what exactly fails here? If there's an issue with RAM for example, shouldn't kernel report this in dmesg, or cause a kernel panic?

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• Possible to stop Adobe DreamWeaver from rewriting 'onclick' to 'onClick'? [closed]

  - by DA01

  I've been giving my dev team grief by checking in HTML edited in DW. It turns out that DW has silently been rewriting all instances of 'onclick' to 'onClick' completely breaking the application in Webkit on us. I've done some digging on Google and this appears to be a bug that goes back to at least 2004. Supposedly it has nothing to do with your code re-writing settings and what triggers it is opening any document that does not contain a Doctype. Few of ours do, given that we're maintaining a framework that's using all sorts of include and dependency files. In all my Googling, I haven't found a fix, though. Has anyone come across one short of swearing off Adobe products forever?* something, btw, that I'm perfectly fine doing...it's just that given the insane IT lockdown on our work machines, we have very few software choices. For now, It's Notepad++ for me.

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• chrubuntu installation help

  - by Sir_Yoshi

  my friend loaned me his Acer c720 in order to load ubuntu on it. I have previously liberated my netbook and UMPC with Ubuntu but those where normal windows PCs. I have followed all the steps so far in order to enter developer mode yet at the login screen, when I type ctrl+alt+= (F2) nothing happens. the terminal should open up but it does not. Please help me, my friend bought this craptop but does not have wi-fi thus rendering it useless. P.S. how do you right click without an external mouse?

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• What should I do when Ubuntu freezes?

  - by ændrük

  All operating systems freeze sometimes, and Ubuntu is no exception. What should I do to regain control when... just one program stops responding? nothing at all responds to mouse clicks or key presses? the mouse stops moving entirely? In what order should I try various solutions before deciding to pull the power plug? What should I do when starting up Ubuntu fails? Is there a diagnostic procedure I can follow?

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• Ubuntu crashed during the update to 12.04, not I can't recover my files, help please

  - by mrah

  I'm pretty new to Linux and I've only installed Ubuntu as I couldn't afford to buy Windows, worked well and I liked it. But I chose to upgrade it to the newest version after a prompt. The update froze and the machine was unresponsive which forced me to hard reboot it. Now nothing seems to load and I've reached my wits end (mainly cos I'm lost in all the command lines). I've decided to try and recover my data from the hard drive, only two folders, by selecting the try Ubuntu option when I insert the OS CD into the machine. The problem I'm experiencing now is it won't let me copy my folders, I get a 'The folder contents could not be displayed. You do not have the permissions necessary to view the contents of "folder_name".' Does anyone know how I can recover this data?

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• iptables rule problem

  - by thakrage

  I've been searching around for some time now, but nothing solves my problem. I'm setting up a mail server, but when writing to the iptables, I get an error: iptables-restore: line 2 failed. I'm tryig to use the following /etc/iptables.test.rules: # Allows SMTP access -A INPUT -p tcp --dport 25 -j ACCEPT # Allows pop and pops connections -A INPUT -p tcp --dport 110 -j ACCEPT -A INPUT -p tcp --dport 995 -j ACCEPT # Allows imap and imaps connections -A INPUT -p tcp --dport 143 -j ACCEPT -A INPUT -p tcp --dport 993 -j ACCEPT After this, I'm issuing the following command: sudo iptables-restore < /etc/iptables.test.rules However I get returned this: iptables-restore: line 2 failed. I don't know what the problem is. Can anyone clarify? btw. I'm using Ubuntu 10.10 LTS

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• What driver for nVIDIA GeForce MX440?

  - by ubufan

  I have recently installed (clean install) Ubuntu 12.10 on a desktop PC with nVIDIA GeForce MX440 (AGP 8x) and I have problems with Unity. Although I can see the desktop, however i can't see unity bar and icons. So, I decided to install lubuntu-desktop to see the performance. And yes! I choose lubuntu-desktop from Log On screen and the performance is definetely much better and has nothing to do with the aforementioned on unity. The system has native drivers from the Ubuntu installation. I didn't touch anything in xorg configuration. I also remember that I have managed to have the best performance with this graphic card on my previous Ubuntu 9.10 system, by editing some values in /etc/X11/xorg.conf file. But I can't remember that options, because I formatted the / partition! My question is: Which is the most suitable driver for this card, in order to load the unity feature and have better performance on it?

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• Can't Make Changes via FTP on my Ubuntu Server

  - by Rev

  I'm very new to server management, I literally just set this up for the first time a couple weeks ago, no idea what I'm doing. In order to allow WordPress to run updates, apparently everything needs to be owned by www-data, but if everything is owned by www-data, I can't FTP with the user revxx14. When I try, I can't make any changes (deletions, additions, updating files, nothing. I get permission denied errors across the board). Is there a way to give my user the same permissions as www-data, so that I'll be able to keep www-data the owner, but still be able to make changes via FTP? Thanks.

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• Sound issues in 14.4

  - by RMartinezG

  God Day. This is my first day with you people so please acept my apologies whether something is not good enough or my english is no that good. To the point ------------------------------------------ After upgrading from 13.10 to 14.4 my sound was lost. Even I've tryied several sugestions from you (and other helpers) I've got nothing. My dual (UBUNTU/WINDOWS) Desktop sound works fine in windows!!!(damm!!) my DELL Inspiration laptop sound works fine in UBUNTU 14.4 LTS. ¿?¿? Do anybody knows Which is actually the origin of the problem? Is there any solution diferent to assay-error metodology? Is'nt every newer version of UBUNTU enough double checked before releasing it? Thanks for youo help sudo apt-get install -a indulgence_with_me

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• Ubuntu and surround sound

  - by keith

  I'm trying to connect my Logitech x.530 to my Dell studio 1558 and get 5.1 sound. I have 3 jacks and in Windows I automatically could switch between line in adn mic. Which means I could get 5.1 surround over these 3 jacks. Ubuntu does not realise that one of the three jacks should be switched to give sound to the center and LFE speaker. I tried all the tips in the forums, but nothing works. I can only select 4.0 sound in pulse audio. As the dell and the IDT 92hd89e chip for the sound are probably famous laptops I thought there must be someone who has similar issues in the 5.1 sound. I would like to stay at Linux but without this hardware support it's almost impossible.

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• Syanptics Touchpad Won't Re-enable

  - by user71607

  I disabled my Synaptics touchpad while a key on my keyboard and now I can't get it to work again. When I press that key again it says the touchpad turns back on but will not work at all. Rebooting doesn't help, and I tried installing touchpad-indicator but when I try to enable from there it says that it enables, but the icon remains like it's disabled. The odd thing is that it works on the lock screen so I know the drivers aren't messed up, it's just a setting. Also, the touchpad works on guest mode but still nothing on my account. I tried using gconf to set the touchpad_enable to true and it worked, it sure set it. Doesn't make a difference though, my touchpad is still useless. Terminal commands I've used: gconftool-2 --set --type boolean /desktop/gnome/peripherals/touchpad/touchpad_enabled true synclient Touchpadoff=0 modprobe psmouse

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• Gnome 3.10 doesn't show login, Ubuntu 13.10

  - by TheWebs

  I use gnome as default desktop. And I recently upgrade Ubuntu to 13.10 then upgraded gnome to 3.10. Upon restarting, it brings me to the gnome log in screen (GDM) and all I see is the top banner part so like your date, music volume, option to restart, suspend or shutdown. Hitting control+alt+delete tells me gnome display manager will log out - it does but still nothing. I am on the log in screen, but there is no user to select, like there normally is or was. I can boot into safe mode and drop down to shell but I am not sure what commands I would enter to get the login screen back. I am using the gnome PPA's and the "unstable" PPA, so I expected issues, but not this - ideas?

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• Ubuntu server upgrade 11.04 to 11.10 fails

  - by DLosc

  I'm actually trying to upgrade my Ubuntu 11.04 server to 12.04, but I have to go through 11.10 first, right? Well, do-release-upgrade is failing miserably. Here are some representative screenshots: Screenshot 1 Screenshot 2 Screenshot 3 Screenshot 4 And finally... Yeah. I found this question, which appears to have similar errors, but I've tried all of the suggestions given there and nothing has changed. I tried running apt-get dist-upgrade; it churned for a while and eventually came back with "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?" Ran apt-get update and got much the same kinds of error messages I got from do-release-upgrade. Any ideas/suggestions/solutions? Should I try downloading & upgrading from the CD instead? I'm glad to provide any further information I've forgotten.

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• Limiting what resumes computer from suspend

  - by user1399195

  I'm having a ton of trouble getting Suspend to work with my laptop. I want to start using Ubuntu but this is a pretty important aspect since I take my laptop with me everywhere. Anyways, I wanted to narrow down the possible problem with my laptop. What happens is that when I suspend my computer, within seconds, it just boots back up. I have changed /proc/acpi/wakeup to where everything is disabled but that did nothing. Is there a way where I can disable every feature from waking up the laptop except the power button?

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• Iptables and system-config-firewall

  - by nivde92

  I had a set of netfilter rules set with iptables, but someone else told me to use system-config-firewall to add a rule for sharing files with Windows. (Samba) This rewrote the iptables rules file and I lost my own custom rules. I have a backup copy, but am having trouble restoring them. Edit: The server is Centos, I already tried to restore the rules with iptables-restore < /root/working.iptables.rules but for some reason the rules don't change. What are you trying to do? Trying to restore the iptable rules that I have in a backup file. What have you tried in order to make it happen? I've tried to modify the iptables file with vim, since the command iptables-restore was no help. What results did you expect? To get the old rules back. What actually happened? Nothing, when I run the command or edit the file by hand the file doesn't change at all. Maybe something else it's overwriting.

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• Load Web Pages Problem- Using Firefox and Chromium

  - by dylan0005

  Basicly my problem emerges when I try to load Facebook and Yahoomail, I don't know why Both browsers Firefox and Chromium don't load these webpages, but this problem only happen with UBUNTU, when I'm in windows no problem. Note: The other webpages like youtube, gmail etc load without any problem. I've tried these following quikcly solutions: -delete cookies, history and Temp files -return the browser to their original settings -desintall and install the browsers -Change the DNS configuration Nothing has been successfull. I need your help guys. What should I do?

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• Can't install ubuntu on msi computer

  - by Uruz36

  I have been trying to install ubuntu along windows but failed. the issue is that I get a graphical glitch with the colours of the ubuntu loading screen while installing from usb and no progress is made, the pc freezes. I've tryied the nomodeset solution, but when I have to reboot I get the same problem. I've tried ubuntu 13.10, 13.04, 12.04 etc...both generic and for amd: nothing worked... any idea how this could be resolved or which distribution/iso I should try for my system? thank you. I have the following system: AMD FX-4170 Quad-Core 4.20 Ghz ram 8 GB MSI mainboard 760GM-P21 (FX) 1TB hard disk samsung led tv as monitor (I connect with HDMI) OS windows 7 64bit ultimate

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• Unable to upgrade 11.04 to 11.10

  - by Kasi

  I have Ubuntu 11.04 installed in my laptop and tried to upgrade it by opening the update manager and and making the necessary settings in settings - updates - release upgrade - normal releases and then hitting the check button. But nothing appeared indicating later version is available to be upgraded. When I run the following sudo apt-get dist-upgrade below is the result that appeared. Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Also I am unable to watch YouTube videos in the Firefox 15.0 in my Ubuntu 11.04.

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