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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230 views

Please help me speedup my Ubuntu 12

top - 08:28:09 up 12:59, 2 users, load average: 0.59, 0.47, 0.35 Tasks: 200 total, 1 running, 199 sleeping, 0 stopped, 0 zombie Cpu(s): 7.1%us, 2.7%sy, 0.0%ni, 88.1%id, 2.0%wa, 0.0%hi, ...
1
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2answers
1k views

Ubuntu installation failed every time after choosing “install ubuntu alongside window 7”

I want to install Ubuntu with window 7 as a dual boot PC. After Booting from pendrive when I choose "intall ubuntu on Hard disk" , then installation window comes, I choose "do not connect to wifi ...
1
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1answer
4k views

UFW 'default deny incoming' doesn't work

I have UFW enabled, 'default deny incoming' set and no any additional rules, but I still can access all ports from other PCs. I have to manually block each port. What can be wrong?
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1answer
84 views

Error when installing ubuntu with Windows installer

I'm trying to install Ubuntu 12.04.2 LTS with Windows Installer. I downloaded this version from http://www.ubuntu.com/download/desktop/windows-installer and did as it says on instructions, all good ...
1
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1answer
332 views

“apt-get -f install” not working [duplicate]

Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following packages were automatically installed and are no longer ...
1
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1answer
116 views

Ubuntu server 12.04 error

I have been attempting to install Ubuntu server 12.04. After the boot screen, I just get continuous scrolling messages that won't stop, along the lines of: [ ###.######] ehci_hcd 0000:00:13.2 port 2 ...
2
votes
1answer
1k views

Turning off battery management on desktop

Just installed Ubuntu 12.04 on a Dell Optiplex GX280 desktop computer. When I hook up my bluetooth mouse and keyboard it seems to recognize their batteries as the actual battery of the computer. As if ...
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2answers
22k views

Installing Nvidia driver Ubuntu 12.04 [duplicate]

I downloaded this driver from the Nvidia website: NVIDIA-Linux-x86-310.44.run How do I install this file?
2
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2answers
3k views

Taking screenshot saves a black image with the cursor only [closed]

Whenever I do a screenshot, it saves a black image with the cursor only. However, if I do a screenshot after an app or Unity freezes, it would save an image in the state when the app or Unity was ...
2
votes
1answer
261 views

Triple Booting - Windows, Ubuntu, and Ubuntu Studio

I've Windows and Ubuntu, and wanted Ubuntu Studio, so I downloaded Ubuntu Studio 12.04 dvd file, and I wanted to have triple-booting on my laptop. Here is the snapshot of disk management. image ...
0
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1answer
346 views

While installing Rhytmbox, I get the following error [duplicate]

The following packages have unmet dependencies: gstreamer0.10-ffmpeg: Depends: libavcodec-extra-53 (>= 4:0.7.3-1) but 4:0.8.6ubuntu0.12.04.1 is to be installed Depends: ...
0
votes
1answer
310 views

How to tell what is logging bandwidth [duplicate]

I've been having everything that goes through my NIC logged and I'm not sure how it happened. The last thing I installed was webmin and I'm not sure if that changed a setting or not but as of today ...
0
votes
1answer
230 views

Ubuntu update gone wrong [duplicate]

I tried to update to 12.10, but in the mist of installing, the entire computer froze, and not knowing about REISUB I forced quit my computer Ever since, every time I updated, I was given a message ...
1
vote
1answer
1k views

Ubuntu 12.04.2 LTS boots to command line of some kind

I recently built a computer, then installed Ubuntu 12.04.2 LTS (Desktop, AMD64)using the Universal USB Installer from pendrivelinux.com. When it was first installed, the Unity bar (at the left) was ...
0
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2answers
275 views

Can't boot live USB on Windows 7 system

I made a USB bootable using a program recommended by the Ubuntu website, but when ever I go to the boot menu on restart there is no option to boot from USB. I've restarted 8 times and still don't see ...
1
vote
1answer
232 views

Dual monitor not working when 'nomodeset' is used

I am using an HP Pavillion g6 laptop running 12.04, and the laptop screen is simply black if I don't apply 'nomodeset' on startup. However, including this has lead to the laptop not recognising an ...
0
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2answers
367 views

ubuntu: escape or exit superuser mode

I have Ubuntu 12 and my power went out so when I restarted the computer, it immediately booted up to super user/ console mode. I did some google search on forums and such on similar issues, but I'm ...
2
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1answer
168 views

Administrator access

How do I know that I have administrator's access on Ubuntu 12.04 and how do I stop the incessant prompts that always need my authorization to be able to do anything?
2
votes
1answer
4k views

How to enable unity 3d in 12.04?

I installed the graphic card driver: But Unity is still in 2d mode: How can I bring it into 3d mode?
2
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1answer
56 views

Where are installed the binaries of Texlive?

After installing Texlive 2012 trought the texlive-backports ppa on Ubuntu 12.04, I cannot find it in /usr/local/. Why? I need to find the path to the binaries so I can add that to TeXstudio.
3
votes
2answers
337 views

How can I add 'emacs' to one of the 'Show other application' in file explorer

In file explorer (Nautilus) under Ubuntu, I can select a file and right click and scroll to: open with other application My question is how can I add emacs to that list of "other application"
0
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1answer
86 views

How to get kernel versions to match in a server and clients?

Ubuntu has released 12.04.2 LTS, which has a newer kernel than the one that comes with 12.04.1 LTS. I prefer to keep server and clients with the same kernel version. Can this be done?
0
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1answer
237 views

How to run audio settings program without Unity?

In Unity desktop, there is a sound menu at the top of the screen where I can change volume and input/output devices (screenshot). I'm wondering how can I run this program without Unity? (Just in ...
2
votes
0answers
51 views

What to do when my system freezes? [duplicate]

Ubuntu has suddenly stopped working and everything has become unresponsive, including the mouse, keyboard. I waited for almost an hour to make it settle itself. Finally, I had to shut it down and ...
0
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2answers
299 views

What to do about errors with update & upgrade?

I'm using Ubuntu 12.04 LTS 64 bit on a Pacard Bell dot S netbook with intel atom 64 bit processor. I get then following message when using either apt-get update or upgrade. Upgrade stops on this but ...
1
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1answer
11k views

How to install Tv-maxe

I am having problems install TV-MAXE on one laptop the issue is that is asking for ubuntu 12.04 lts cd to be in /cdrom/. Apparently the issue are the files lirc and setserial that will not ...
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2answers
2k views

How to install Ubuntu in Asus Eee PC 1015CX?

Hi I would love to use ubuntu as my default OS in my new Asus Eee PC 1015CX. It comes with a default Express Gate cloud OS and I would like to know the steps on how to create a USB bootable drive and ...
2
votes
2answers
807 views

Issues with Lenovo C440

New Lenovo C440, initialised m/s to check machine and validate warranty. otherwise nought on it, apart from usual buy this, use this garbage that came pre-installed. Burned new disc (12.04.2 64AMD) ...
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2answers
73 views

Why use Ubuntu for PHP

After doing some research on google i found that most of the company is using LAMP for php development. Is there any big advantage using ubuntu for php?
1
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1answer
1k views

Ubuntu not booting after using Ubuntu-Tweak's janitor function

I'm pretty new to Ubuntu. This morning my Ubuntu 12.04 would not boot up properly anymore. After the loading screen saying "Ubuntu" with the five little dots it just goes black and nothing happens. ...
0
votes
1answer
344 views

after first reboot choose wrong video port

Sorry for my english. I had installed Ubuntu 12.04 on intel motherboard with atom and igd 3000. On this board two video outputs: d-sub(vga) and dvi. My monitor have only D-SUB. After installation ...
0
votes
1answer
84 views

Flash stopped playing sound

my ubuntu stopped playing sound. I tried to search what I am using as sound device , but the system manager just says "built in audio" Can you please direct me what should I try? So far I only tried ...
1
vote
1answer
551 views

Wireless interface stopped working after routine updates

I'm running Ubuntu 12.04 on a Lenova ThinkPad. I updated a few days ago, and my wireless interface has basically disappeared. I can see where they should be when I click on my internet icon, but ...
1
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1answer
2k views

Trouble configuring Apache virtual hosts in ubuntu server 12.04

OS: Ubuntu 12.04.2 Updated to the latest and greatest SO here's what I've don so far: cd /etc/apache2/sites-available sudo nano mysite Inside this file I've written the following definition: ...
1
vote
1answer
542 views

Ubuntu suddenly stopped booting to GUI and startx stalls

I am running Ubuntu 12.04. A few hours ago, I started up my machine, checked my email, played a couple albums on Spotify and turned it off again. I did not notice anything out of the ordinary and I ...
1
vote
1answer
534 views

“latex it!” button (add-on for Thunderbird) not accessible?

They say here that it works great after.. manually adding the "LaTeX it!" button But how does on manually adds a "LaTeX it!" button? without it there is no way to use this add-on. I'm not sure ...
6
votes
1answer
2k views

Why do I have different kernel versions on same distribution version

I (re)installed Mythbuntu 12.04.2 to solve an audio problem. After the installation I find that the kernel version of this MythTV front-end is 3.5.0-27-generic. However on the fully-updated ...
0
votes
1answer
685 views

Ubuntu software center crashes on startup

When i try to open software center it opens but nothing shows up on the window and it closes after 5 seconds. it had worked previously and then i did a ppa purge and then it won't open. the ppa i ...
0
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0answers
702 views

Airdroid and Kubuntu via Hotspot [duplicate]

I would like to connect my Samsung Galaxy with Android using Airdroid to my Kubuntun 12.04 on a Dell 1510. I do not use a WiFi at home, but a G3 SIM on my laptop. However I have seen I could create a ...
2
votes
0answers
374 views

Ubuntu 12.04 with Nvidia 304.88 GT 220 not keeping resolution wwhen switching inputs HDMI on HDTV

Strange problem since the latest 'upgrade' for the Nvidia drivers (to 304.88). My HTPC - Ubuntu 12.04 - is connected to my HDTV via a Samsung receiver. This receiver does all the switching for my ...
2
votes
0answers
638 views

Why can't ubuntu recognize my mobile broadband usb dongle when I plug it into the usb 3.0 port?

I have a Mobile Broadband USB dongle. When I plug it into the usb 2.0 port ubuntu recognizes it and connects quickly, but on a usb 3.0 port ubuntu does not recognize it at all! This problem is NOT ...
1
vote
1answer
407 views

Ubuntu Tweak Shutting Down Itself

I am using 12.04 LTS. This morning when I tried to clean up some unnecessary items using Janitor in Ubuntu Tweak (Firefox cache & Thumbnail cache), it was suddenly shutting down/closed by itself. ...
1
vote
1answer
1k views

Make gcc coloring the default

Is there a way to automatically make gcc color its output? I am looking to avoid an alias as the the command is commonly used in makefiles (where it will not be used). Is there an easy way to do ...
1
vote
1answer
215 views

Changing Brightness on netbook

I am using Asus Eee PC R051CX. I am unable to boost up brightnes of my screen. While I was trying ubuntu 12.04 from live img from usb stick it was good, but after installing on local hard disk screen ...
0
votes
1answer
1k views

Ubuntu 12.04 i have removed lightdm

My problem began when I have restarted my laptop after I have installed a new GUI, I have Ubuntu 12.04 with ATI mobility HD 5470, but all was fine and working good. On my Ultimate Edition 3.4 I have ...
0
votes
1answer
48 views

Cannot install 12.04.2

I'm running XP and am trying to install Ubuntu 12.04.2. The box is setup to boot from CD/DVD before the hard drive. It spins for a bit and then goes ahead and runs XP from the hard drive. I tried ...
0
votes
1answer
580 views

Ubuntu won't let me boot back into Windows after installing on Surface Pro

I installed Ubuntu on my Surface Pro, on a completely separate partition from the main Windows 8 partition. I took the same steps I normally do to dual boot on other machines, but now when I start the ...
0
votes
1answer
376 views

How to move Ubuntu 12.04LTS from USB to HDD [closed]

Firstly I'd like to apologize if this sounds like a question already asked but the answers given were of no any help :/ Here's my situation. I bought a USB key with Ubuntu 12.04 LTS from Canonical. ...
0
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1answer
2k views

Unable to run compiled files - bash: ./a.out: Permission denied. (I've tried chmod)

First of all, there are many questions like this on AU. Still, none of them solved my problem. I've compiled my C source using cc test.c, and it did generate a.out file. However when I run it I get ...
5
votes
1answer
6k views

Wireless with Intel Centrino Advanced-N 6235

I installed Ubuntu 12.10 on a Samsung Series 5 530U3C-A0J and while Ethernet works, I am having trouble with wireless LAN. It manages to establish a connection to my router without any problems, but ...