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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6
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6answers
10k views

Applications not showing in Unity Dash

I am running ubuntu 12.04 on an IBM thinkpad t42. I just installed gnome and cinnamon but I am still using unity the only problem is that in dash when I search for any application they don't appear. ...
1
vote
2answers
5k views

Fans running very fast on MacBook Pro 8.1

I installed Ubuntu 12.04 on Macbook Pro 8.1 and one of the first things I noticed was that the fans were starting to spin very fast every few minutes for 10-30 sec and then going back to normal. That ...
0
votes
0answers
17 views

Blank Screen after reinstalling xserver-xorg-input-all

I followed the instructions of Keyboard and mouse unresponsive after suspend to solve an equal problem with my notebook, but now after rebooting it the screen is blank. It looks like unity is coming ...
0
votes
0answers
22 views

Upgraded to 12.04.5 and I don't know the password it wants

I just upgraded my dell precision m6300 to Ubuntu 12.04.5 LTS (Precise Pangolin), and it is asking for a password which I don`t have, my old one does not work, can you help?
3
votes
2answers
6k views

I'm trying to install VMWare tools on Ubuntu 12.04.2 LTS and I seem to have a problem with Kernel headers

I have Ubuntu 12.04.2 LTS installed on a VMware machine on Windows 7 host. I seem to have a problem with Kernel headers when trying to install them I did: sudo apt-get install gcc make ...
6
votes
1answer
17k views

How can I restart Unity/GDM when I get a blank screen after suspend?

Occasionally, with Ubuntu 12.04, I get a blank screen when I resume from suspend. I can see the mouse cursor, but that's all. I can get TTY terminals, so is there a way to restart the graphical ...
0
votes
1answer
140 views

4GB out of 8GB total reserved 64bit 12.04 why

Can anyone explain why 50% of my ram is being reserved and for what? I do have two radeon 7990 cards but surely the ram is not reserved for them? root@stan-desktop:/home/stan# cat /etc/issue Ubuntu ...
2
votes
1answer
72 views

Cancelled upgrade from 11.10 to 12.04, refusing to upgrade again

When I was updating from 11.10, to 12.04, I cancelled because the computer froze. Now the update manager doesn't show an upgrade option. How do I upgrade? It said I could continue through a location I ...
0
votes
3answers
5k views

Not able to configure Reliance Netconnect USB dongle with Ubuntu 12.04 LTS

I've a Netconnect USB dongle which is I am not able to use with Ubuntu 12.04 LTS. I am noob lsusb Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID ...
2
votes
1answer
8k views

Tomcat Installation startup.sh not working

So I've followed the list of steps on : https://www.digitalocean.com/community/articles/how-to-install-apache-tomcat-on-ubuntu-12-04. When I try to run the startup script, I get this message: ...
1
vote
1answer
4k views

How can I troubleshoot why Ubuntu keeps crashing on my laptop?

I have a one year old Acer Aspire 4752G netbook running Kubuntu 12.04 LTS with all the latest distribution updates installed. It was previously running great until about a week ago when it suddenly ...
0
votes
1answer
64 views

Strange error while reinstalling 12.04

So I'm trying to install Ubuntu 12.04 (64-bit) to an external HDD. I select where I want the swap area, the boot loader, etc (the "something else" option). That all works fine, then I click "Install ...
1
vote
1answer
18 views

How to disable windows' contents to be moved on dragging, so that only a frame is draggend and window redrawed at drop?

I have xubuntu 12.04 xfce4. When moving windows the content is always moved. How can I acheive to just move a frame or border of the window and get the window content redrawed at drop of mous button?
1
vote
0answers
24 views

printer OKI B430dn worked on Ubuntu 12.04, doesn't on 14.04

In our office we have several pc's with Ubuntu and a network printer OKI B430dn. The double-sided option worked well with Ubuntu 12.04 driver (OKI B4300 footmatic/pxlmono) installed with CUPS (via ...
0
votes
3answers
14k views

Problem with Ubuntu Software Center--can't install anything

About 3 weeks ago I downloaded Ubuntu 12.04 and I've been running it since then. Initially everything worked great, but about 10 days ago the Ubuntu Software Center quit working (I previously used it ...
3
votes
4answers
4k views

Youtube framerate low in full screen

I've just installed Ubuntu 12.04 yesterday, and i'm having problems watching video's on YouTube. Once I get to full screen the frame rate drops to 16fps. My PC runs the latest games on very high, so ...
0
votes
2answers
2k views

Package 'cmake' has no installation candidate ubuntu 12.04

When I run sudo apt-get install cmake I get the following response: Package cmake is not available, but is referred to by another package. This may mean the package is missing, has been ...
0
votes
1answer
3k views

How do I install HP DeskJet Ink Advantage 2510 All-in-One Series?

Ubuntu 12.04 has the version 3.12.2-1ubuntu3.1 and http://sourceforge.net/news/index.php?group_id=149981&limit=5&offset=5 says that HP DeskJet 2510 All-in-One Series is supported in HPLIP ...
1
vote
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 ...
0
votes
1answer
21 views

Could not open “” Archive type not supported

I'm trying to install Team-Speak 3 on Ubuntu 12.04, i've done all instructions that I should of, but when I run "ts3client_runscript.sh" it says "Could not open "ts3client_runscript.sh" archive type ...
-1
votes
1answer
18 views

Trying to update my laptop from 12.04 to 13.10 but failed to fetch

I'm a noob when it comes to Ubuntu because i usually have a guy that helps me with my needs. But he currently isn't available and i recently fixed this laptop with 2 years of no updates and no log in. ...
0
votes
3answers
5k views

Share files - Ubuntu 12.04 and Windows 7 - one network - password not accepted

I ask this question in SuperUser but no one helps me. I hope to get more attention here. I have three computers connected in one network by modem. I want to share files in this network in the most ...
0
votes
1answer
3k views

How can I install a USB bluetooth dongle in Ubuntu 12.04?

I would like to use a USB bluetooth dongle on Ubuntu 12.04. I guess that I will have install some drivers first. So where do I get those? Are there any universal bluetooth drivers? Do I have to do ...
1
vote
3answers
7k views

Lenovo Ideapad built-in mic not working in 12.04

I just bought a new Lenovo P580 Ideapad yesterday and installed 12.04 64bit on it. I tried making a call with it and discovered that the built-in microphone wasn't working. I unmuted it in sound ...
9
votes
4answers
18k views

Installing Ubuntu 12.04 without installing Grub

Using the Ubuntu 12.04 Live CD, is possible not to install Grub? In previous versions, there was a checkbox called something like "skip grub installation", now in 12.04 this checkbox isn't there any ...
0
votes
0answers
59 views

Cheese webcam app not working

I am running Ubuntu 12.04 LTS. My cheese program seems to have a problem. Every time I open the application, I see a white window and it just closes. I have already tried uninstalling and reinstalling ...
0
votes
0answers
46 views

Viber through Wine, crash on calling with unexpected error

12.04 Precise 32 bit system, currently have Viber running under Wine due to system architecture. Gotten it to install and messaging works as a charm although upon firing a call it quits with an ...
1
vote
0answers
10 views

Incomplete KBibTex Installation

I use Ubuntu 12.04 and I tried to install KBibTex with the Software-Center. After the installation I get the following Popup: If I press okay then the program starts as usual. But as soon as I ...
0
votes
1answer
48 views

Ubuntu 12.04 server Installation issue

I have tried to install ubuntu 12.04 (32 & 64 bit) version on Fujitsu Primergy RX200S8 server. But at the time of base system installation the server get restarted itself without showing any ...
5
votes
3answers
3k views

Linux Ubuntu 12.04 - TeamViewer 8 - microphone/speakers problem

I already install Teamviewer 8 on my laptop (Linux Ubuntu 12.04) But there is no sound - no microphone or speakers can be detected from TeamViewer. Is there any way that I can fix that problem ? Do ...
0
votes
0answers
25 views

How to capture logs from Remote using syslog-ng?

I have installed and configured syslog-ng server using: How can I receive syslog logs from a networked system? But I am not able to capture anything. My /etc/syslog-ng/syslog-ng.conf file: @version: ...
0
votes
2answers
50 views

Files sizes differs from windows to linux

Continuation of below question Why Same File Shows Different Sizes in Different Operating Systems Can both the files sizes be made the same. Guide me on how dis can be achieved.
1
vote
3answers
10k views

minidlna and samsung tv file format doesn't support

I have PC with XUbuntu 12.04 and Samsung 27A950, so I want to use my PC like dlna server. But I can run file of any format on my TV, get error: "File format doesn't support". I try to open *.avi, ...
-2
votes
0answers
14 views

heating up , sony vaio e-series vpceb45fg , [duplicate]

i have dual boot on sony vaio with windows 7 and ubuntu, fan runs continuously and systems heats up too much. please help / guide for procedure to avoid the problem. would love to keep using ubuntu. ...
1
vote
1answer
26 views

How to find the running network services and the port and user

I want to find a list of all network services running on my system, including details of the port and services and the users. I know that I need to use netstat, ps and fuser. but I don't know how to ...
-1
votes
0answers
63 views

12.04 and 14.04 Ubuntu stuck at boot nomodeset failed

I have installed both Ubuntu 12.04 and 14.04(32 and 64 bit), and after grub loads, the screen either turns black if i don't select nomodeset, either it gets stuck at a certain point after exiting ...
0
votes
1answer
3k views

Asking for cache data failed | Assuming drive cache : write through. Ubuntu 12.04 LTS GUI doesnot appear

I recently installed Ubuntu 12.04 on my hard drive partition of 10 gb. I was uninstalling some software and after that this messages started coming up on a black full screen. Asking for cache data ...
4
votes
2answers
2k views

Why does Software Centre ask for root password when the default is for root to be disabled with no password set?

This seems odd to me. I can't install software using the "friendly" GUI tool unless I input the root password but by default, my Ubuntu 12.04 has root disabled with no password set. Why doesn't ...
0
votes
0answers
20 views

Server does not get into login prompt

This morning the server is not working. I have a concern this could be a worst case scenario. I rebooted the server so that I could watch what was happening. The first thing is that there is a ...
2
votes
1answer
4k views

Install Python 2.7.8 on Ubuntu 12.04

I have to use Ubuntu 12.04 for some reason. In the other hand, i have to use Python 2.7.8 but the newest python version for 12.04 is 2.7.3. Is there any ppa repository i can use to upgrade my python ...
4
votes
2answers
6k views

Cant disable, control keyboard backlight on sony vaio vpcf236fm

Hello i have a sony vaio vpcf236fm. I am unable to disable or control my keyboard backlight. i want to be able to disable it when im running on the battery. Please if i could get help with this id be ...
3
votes
3answers
5k views

Why is my /dev/loop0 showing full?

I have sufficent memory , but somehow I get my /dev/loop0 showing usage of 9 GB here's my df-h. Filesystem Size Used Avail Use% Mounted on /dev/loop0 12G 10G 1.4G 88% / udev ...
0
votes
1answer
14 views

Can see all computers on the networks but can't see each other

I have a windows 7 pro machine (KC-Laptop1) running a bridged network between the wireless corp.local and my wired KC_Computers_LLC.lan and I have my ubuntu 12.04 server (KC-Server1) running on the ...
-1
votes
2answers
373 views

How to stream web media content to my smart TV via DLNA?

I want to stream a cloud based media to my tv .. I've installed DLNA server on my ubuntu pc but i want to share web content without downloading it to my pc. Is that possible ?
0
votes
0answers
12 views

Strange entry in open file list on Ubuntu server

On my Ubuntu server I occasionally run the following command to view any open files that are TCP connections from my server: lsof -uroot | grep 104.236.XX.XXX The last time I ran it, I saw this as ...
1
vote
1answer
50 views

Ap-hotspot wifi clients can't reach each other

I am using ap-hotspot to create a wireless access point for 2 computers and a phone. Everything is working correctly but I cannot reach from one client connected to the access point another client. ...
0
votes
1answer
19 views

Ubuntu 12.04 can't log into graphical user interface

Somehow when I update packages, I lost the graphics driver installed in my system, and it now only logs me into tty1. when I press Ctrl + Alt + F7 the cursor blinks at the top of my screen and nothing ...
3
votes
3answers
8k views

Wifi not working on Acer Aspire One D270

brand new baby linux user here, never used Ubuntu or any other linux OS before, so be gentle and use short words! I installed Ubuntu 12.04 on my new Acer Aspire One D270-F61C/KF netbook (it's a ...
2
votes
1answer
189 views

Node.js application is not working ARM Ubuntu

I use a Samsung ARM Chromebook as a dev machine, and as a result Node.js is absolutely essential. In the past I've had no issues with it whatsoever. However, due to unfortunate circumstances I was ...
1
vote
1answer
3k views

How to Force Ubuntu to load and use my .ppd printer driver instead of the default one?

I have a Dell 1815dn printer and a laptop with Ubuntu 12.04. Ubuntu recognizes the printer automatically and installs a default driver. But this driver lacks the option to bypass the toner-saver ...