Fourth LTS (Long Term Support) release of Ubuntu, code-named Precise Pangolin. Released on 26th April, 2012. Only use this tag if your question is version-specific.

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Ubuntu Intel wireless 3160 AC not working/slow/disconnecting/unstable

I had just bought a toshiba l50-b-1q0 with intel wireless 3160AC module. I have installed ubuntu 12.04 (I heard 14 natty is even worse) and tried different kernels: 3.12rc4, 3.11, 3.13.2, 3.17. But I ...
2
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1answer
4k views

Run Ubuntu on an iMac G5

I have an old iMac G5 (without a webcam) that I would like to get running Ubuntu. The iMac has no hard drive in it, and I would like to get a live CD running so I can test out Ubuntu before I buy a ...
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4answers
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Cron job to restart Apache

Ubuntu Server 12.04. I use: sudo crontab -e * * * * * root /etc/init.d/apache2 restart > /dev/null 2>&1 sudo restart cron And it doesnt work. How to fix it? So many docs in google,I need ...
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0answers
12 views

ubuntu 12.04 LTS not detecting my 2nd display

Hi I just assembled my pc and got 2 graphic cards into it, I installed ubuntu 15.04 and both screens work , however the pc randomly freezes for a few seconds, so I installed 12.04 and doesnt freeze ...
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3answers
7k views

Unable to create new folders on Ubuntu and Permissions tab is all greyed out

I freshly installed Ubuntu with lighttpd; I want to add a test file to check if my server works or not. I am, however, unable to create files: when I right clicked and opened the "Permissions" tab I ...
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1answer
5k views

How can I get my wifi to work on my Dell 3521 laptop?

I have installed ubuntu 12.04 alongside windows 8 in my DELL 3521 laptop and everything is working fine except the wi-fi in ubuntu. In win 8 wifi is working well but when i start ubuntu it does not ...
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1answer
4k views

“drm:[drm_crtc_helper_set_config] *ERROR* failed to set mode on [CRTC6]” during install

I have a desktop PC which I built a while back. It has an Athlon XP 2500+, 2.5GB RAM, and an Nvidia (PNY Verto) Geforce 6200. I removed the CD drive to add another hard drive so I install from a USB ...
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2answers
4k views

Told command dpkg cannot be found

On issuing the command sudo dpkg -i (package name) at chronos@localhost ~ $, I get the response sudo: dpkg: command not found. Anyone know why? I'm trying to load version 3 of network-manager and ...
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3answers
728 views

fast move window in ubuntu with keyboard

yes i know about alt+f7 shortcut, but moving with arrows is too slow. also it used to work (fast move to the left/right) with shift-left/right on previous LTS 10.04, but currently on 12.04 doesn't ...
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1answer
10k views

PlayOnLinux Unable to find 32bit opengl libraries Dual ATI Videocards

Im curently running Ubuntu 12.04 LTS 64Bit So, i installed league of legends fine the first time with the opensource ATI Drivers provided by ubuntu itself with no issues at all, but it runs so slow ...
3
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1answer
255 views

How to restart OpenStack services after restart/logout?

I have successfully configured OpenStack following this tutorial. The problem is that when I logout of my system or restart, and then try to access the OpenStack dashboard, it says page not found. It ...
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0answers
27 views

How can I resize a virtualbox guest os (ubuntu)?

I run windows 8 and virtualbox with ubuntu 12 as guest os. Now it is 96 % full and I want to increase the size of the disk space available to ubuntu. There is no obvious way to do this in virtualbox. ...
1
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1answer
4k views

How can I revert to the previous kernel version w/out dependency issues?

Since ubuntu updated my install to 3.2.0-37-generic, my laptop fan constantly runs. I never had this issue with the previous kernel versions. To fix this problem, I would like to revert back to the ...
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0answers
11 views

Ubuntu not getting logged in after upgrading to 14.04 from 12.04

I installed Ubuntu 12.04 using Wubi installer from windows, even before that i have Ubuntu 10.10 installed in my system(not through Wubi installer - corrupted not able to login). After updating ...
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3answers
3k views

Chrome shows two icons in Unity Launcher

I am a new Ubuntu user. I just installed 12.04. To get Chrome on the Launcher, I clicked the BFB and searched for Chrome, then dragged that icon to the Launcher. However, when I run Chrome, it creates ...
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1answer
87 views

How to create a deb package when upstream developer has not a release a tarball

I want to create a deb package of https://github.com/manojgudi/sandhi. But I cannot find any tarball there. All the tutorials that I came across on the net assume that thier is an upstream tarball ...
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votes
9answers
59k views

How to fix a broken package, when “apt-get install -f” does not work?

I tried to install Scala with the typesafe stack and got into trouble. Now I cannot do much with apt (except update), the broken package seems to be impossible to remove/clean: Here's the result of ...
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3answers
8k views

Where does Deja-dup keep its config files?

Deja-dup (now Ubuntu Backup) is just a GUI for duplicity, therefore it should store the config files somewhere. I would like to changed the backup volume size to something like 300MB and the increase ...
2
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3answers
3k views

cannot make ubuntu 64-bit v12.04 install work

I decided it was time to update my ubuntu (single boot) computer from 64-bit v10.04 to 64-bit v12.04. Unfortunately, for some reason (or reasons) I just can't make it work. Note that I am attempting ...
4
votes
1answer
6k views

12.04 Failed to load module “nvidia” (module does not exist, 0)

I have ASUS UL50Vt with nvidia optimus hybrid graphics (GeForce 210M). I recently installed ubuntu 12.04, and in Details app it was showing me, that I am on Intel video driver. So, I installed ...
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0answers
16 views

Unable to locate package libcmocka-dev and libcmocka0 [duplicate]

I am trying to install cmocka C unit testing framework. Operating system is Ubuntu 12.04 LTS sudo apt-get install libcmocka-dev libcmocka0 Reading package lists... Done Building dependency tree ...
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2answers
724 views

Connection was refused by other side: 111: Connection refused

I am running 25 scrapy jobs, each has 50 concurrent requests on a heavy machine (with Ubuntu 12.04.3 LTS). I am using proxies to send requests. After 15 minutes or so, I get this error from almost all ...
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1answer
23 views

Is Intel accessing my machine without permission through mei_mei module?

According to this post, there's a module called mei_me which allows Intel to update my machine remotely. Does this mean that, whenever I'm online, they have the ability to access my machine without my ...
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0answers
7 views

problem with serial port

am unable to access serial port on my pc loaded with ubuntu 12.04 while using command dmesg | grep ttyS it is showing [ 0.590705] 00:08: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a ...
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1answer
3k views

With Kernel 3.5.0-21 the wireless card Realtek RTL8723AE-BT stop working

Yesterday, I updated my Ubuntu 12.04 to the Kernel 3.5.0-21 and the wireless card stop working... In other threads I saw the same problem with another kernels. Anyone have the new driver? I sent a ...
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3answers
3k views

Ubuntu VirtualBox VM unable to connect to internet in office environment

I have gone through a lot of links available on internet to fix the issue of Ubuntu VM unable to access internet, but I found no solution. I use this laptop in my office (not from home). It could be ...
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2answers
410 views

I can't install IceCat on ubuntu 12.04

I want to install IceCat on Terminal but it doesn't work. $ sudo add-apt-repository ppa:gnuzilla-team/ppa && sudo apt-get update && sudo apt-get install icecat -y Cannot access PPA ...
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votes
6answers
4k views

Ubuntu 12.04 boots to TTY1

Alrighty, I have perused the threads already in existence and am finding none of them seem to have the exact combination of variables I've got going. I'm working on a computer using Ubuntu 12.04. ...
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2answers
3k views

Why can't I see my Wireless Router a D'Link DIR 615 - Ubuntu 12.04? I can see all the other active wireless connections.

Details: I have a D'Link DIR 615 Router that I have been using for 3 years with Ubuntu 11.10 - with no problems. I have a Dell Inspiron 15R with dual boot of Windows 7 and now, Ubuntu 12.04 - after ...
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1answer
21 views

how to restore ubuntu 12.04 or reinstall accidentally removed packages?

I just accidentally removed libnl-3-200, and all the relative packages have been removed, now there is now internet in my ubuntu laptop. Is there anyway to reinstall it and all the relevant packages ...
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2answers
7k views

How to format hard drive

I have installed bootable ubuntu on hard disks but now I can not format them with Disk Utility program. When I try to format it says "One or more partitions are busy on /dev/sdb" for both hard disks. ...
6
votes
1answer
579 views

Play sound from different applications on different output devices (speakers, headphones)

I want music (played e.g. via Audacious) to be played on speaker system, and all other sounds produced by other applications (including ubuntu sound effects) to be played on headphones. My computer ...
0
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1answer
31 views

zfs broken after upgrading package spl

Just now I did an apt-get upgrade, which upgraded package spl to 0.6.4.1. After rebooting, my zfs-formatted disk failed to mount. How should I regain zfs functionality? All zfs commands are now ...
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2answers
3k views

Second monitor recognized but only black screen

I am running 12.04 on a Toshiba Portege laptop. The graphics card is an Intel 945GM/GMS. The 2nd monitor is an Asus (Ancor Communications 22"). When I connect the monitor to the computer the monitor ...
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0answers
11 views

Ubuntu windows content are not refreshing

I recently upgraded the video card on my computer (from Intel HD Graphics to some ATI Radeon card) ton my Ubuntu 12.04. However, there appears that some windows that I open in GNOME Session Fallback ...
2
votes
6answers
7k views

Huawei 3G modem disconnects after successful connection

I'm having a severe connection problem in Ubuntu 12.04 that renders the OS almost useless. I have a Huawei E352 3G modem. Ubuntu detects it as a mobile broadband connection without any problem. I ...
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0answers
10 views

Boot problem: Can't find IRQ for PCI INT A

I have Win7 an +Ubuntu12.04 on my computer. It cannot boot I get the error: pci 0000:00:14.0: can't find IRQ for PCI INT A: probably buggy MP table Even after reinstalling ubuntu I get the same ...
3
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1answer
88 views

Bluetooth does not detect devices on lenovo with 12.04

I am new to Ubuntu and I am not good at this, but I did a clean install on my Lenovo Z5070 with Ubuntu 12.04 and 3.13 kernel all by myself. My bluetooth can not detect devices, I have tried blueman ...
0
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1answer
943 views

burp: The proxy server is refusing connections from another computer

Ubuntu 12.04.5 LTS (Precise) 32-bit desktop. I have installed burp (an intercepting Proxy), and it works for programs run from the same computer, but when I try to connect from another computer on ...
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7answers
13k views

Skype sign in: Server Connect Failed

When I try signing in to skype , I get the message "Sign in Failed - Server Connect Failed". To resolve this issue I tried almost everything, from removing Skype completely to install Skype again and ...
1
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1answer
12 views

Ubuntu 12.04 server no internet connection

I lost power briefly today, when my headless ubuntu server rebooted I could no longer SSH into it. I assumed the drive had failed or something. I took out the drive, put it into a USB SATA enclosure ...
2
votes
1answer
29 views

Switching to another TTY after running startx and returning breaks Xorg

I've always been curious about an idiosyncrasy of Xorg that seems to happen on every machine I've tried it on; whenever I start a new X instance on a TTY using startx manually (that is, without the ...
2
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1answer
7k views

How to reset display settings in XFCE \ Ubuntu 12.04 and also flgrx drivers

I recently upgraded to Ubuntu 12.04 and since I hate unity I installed the Xubuntu package and am using XFCE instead. Since I have a Radeon HD5770 I also installed the fglrx drivers. This all went ...
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5answers
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dual booting Ubuntu 12.04 and windows 7 (partitioning scheme)

I would like to ask for help on dual booting because it's my first time to try dual booting and a novice on Ubuntu or any Linux distribution. I have 2 partitions on my hard disk: Windows 7 C:\ ...
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0answers
20 views

32 bit 14.04 and 12.04

I run 14.04 on my main PC and 12.04 on my old PC ( built 2003 ). My old PC runs OK on 12.04. If I load 14.04 it runs so slow it cannot be used. The main PC is OK using 14.04. Specs are: Main PC: ...
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1answer
12 views

4G dongle (for wireless internet) not detecting unless i restart ubuntu 12.04

I have a Airtel 4G LTE dongle. if i connect it to my laptop while laptop is on dongle is not getting detected. It only gets detected if i restart laptop. thank you in advance!
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1answer
31 views

how to send data from phone to ubuntu 12.04 through bluetooth?

I have a samsung galaxy grand prime phone. I am able to send data from laptop to phone using bluetooth without any problem, but cant do the same from phone to laptop. Thanks in advance!
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2answers
475 views

Ubuntu 12.04 default wallpaper for all users

I want to be able to change the default background (wallpaper) for all new accounts. Not enforce it after that, but it should be on as default choice. I need to do this on 12.04 with unity and I need ...
2
votes
1answer
2k views

How do I fix an overheating problem with an HP ENVY-4 ultrabook?

I have bought a new HP ENVY-4 ultrabook. It has an i5 processor, pre-installed Windows 7 and 2GB Radeon graphics card. What happened was when I started using Ubuntu it showed overheating. I ignored ...
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2answers
3k views

How to Stop DHCP Server

I have installed a DHCP Server. Now I need to stop the dhcp server, when I issue the command: sudo service isc-dhcp-server stop I get stop: Unknown instance. I confirm the DHCP service is running. ...