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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10
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739 views

Sun Grid Engine Qmon not working on Ubuntu 14.04 LTS

Hello to Sun Grid Engine, UI, and package experts, After installing Sun Grid Engine and trying to run the qmon graphic user interface, the system shows the following errors: Warning: Cannot convert ...
4
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0answers
619 views

Change logging directory/file for an Upstart service

I have an upstart service that it fills up the space. I need to move the logs from /var/log/upstart to a different directory /pub/data/logs/order_server. I tried to do it using console log --logdir ...
4
votes
0answers
2k views

Reinstalling Grub - shows no volume groups found, how do you fix this?

I have a full backup which I had restored onto a new built system on Ubuntu 12.04 The backup did not include /dev /proc /sys folders. Upon rebooting, the grub show the following errors error: no ...
4
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0answers
744 views

Sound Driver is messed up, and mic doesn't work correctly under ubuntu 12

Quick Ubuntu 12.04 sound pops on boot and shutdown, and MIC picks up non-existent static. Edit: please note, Audio out is fine. Issue On shut-down and boot I often hear a loud blast from the ...
4
votes
0answers
290 views

Configure ibus to generate “à” using Compose + a + `

I would like to have ibus work like to corresponding system in OS X. In order to get an "à" in a text field I want to make these steps: I press the Compose key I press the a key (an "a" appear in ...
4
votes
0answers
835 views

Receiving Bluetooth Files from Nexus 7

I have successfully paired and connected my Nexus 7 with my Ubuntu 12.04 PC. I have successfully sent files from the PC to my Android device, but when I try to send files from Android to Ubuntu, the ...
4
votes
0answers
839 views

alt tab stopped working properly suddenly in Ubuntu 12:04 Unity

I have been working on my laptop since morning and suddenly before some time my Alt-Tab functionalist stopped working properly. Some times it switches between the windows some times not, even if it ...
4
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0answers
1k views

12.04 very slow in launching applications

I upgraded to 12.04 and now applications are very slow to launch. For example, I open up the update manager and after about 10 seconds the window appears with a solid white background and then I wait ...
4
votes
0answers
9k views

Connecting To Projector in Ubuntu 12.04

I tried to connect My new ubuntu version with a projector.But it was useless cause Laptop not identified that projector.Updated my Nvidia Driver also.I installed disper also.but couldn't connect to ...
3
votes
0answers
104 views

Only one CPU is being used

I am running ubuntu 12.04.5, have an Asus N53sv and I am have the same problem as the post below, but becuase my bios is different I can not apply the same fix. How to fix that only one out of four ...
3
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0answers
11 views

Stateless Autoconfiguration in Ubuntu Server

How to config stateless IPV6 in ubuntu server as a router? there are 1 router (ubuntu) , and 2 clients (windows 7 and windows 8), how to communicate each other?
3
votes
0answers
136 views

How to link brightness button to correct brightness script

I recently upgrade my Ubuntu from 12.04 to 14.04. My laptop has always had incomtibility issues between the brightness button and the actual brightness set up. In 12.04 I had fixed the problem by ...
3
votes
0answers
180 views

Configure Evince to open maximized with 100% zoom level?

I have Ubuntu 12.04.5 LTS installed on my computer. If I open PDF in Evince for the first time, the window is always un-maximized and zoom level is 70%. I want Evince to be maximized and the zoom ...
3
votes
0answers
122 views

Chromebook: Map Search Key to Caps Lock

Using crouton, I have ubuntu running on my chromebook. By default, the caps lock key is a search key and opens up the dash home. How can I map this key to be caps lock instead? I am very new to all of ...
3
votes
0answers
219 views

Bluetooth mouse produces characters while scrolling in 12.04/14.10

I have a Logitech bluetooth T630 Ultrathin Optical Touch Mouse and the mouse works as expected most of the time (pairs without problems). However, often (not always) while scrolling, the mouse ...
3
votes
0answers
617 views

14.04 - USB microphone speaker device not working anymore

I own a PJP-20UR web conference microphone speaker, I have been using this USB device for ages with Linux, Windows, Mac never ever have had any issues with it. Since I upgraded from Ubuntu ...
3
votes
0answers
2k views

Run script in /etc/rc.local under specific user

I am using portia (https://github.com/scrapinghub/portia) and I have set the following command in my rc.local: cd /home/portia/portia/slyd && twistd slyd Problem here is that the ...
3
votes
0answers
2k views

Nvidia after upgrade 12.04 to 14.04

I have some weird behaviour from nvidia drivers so far. My systemparts that are involved: nvidia GTX 560 Two Screens Ubuntu 14.04, fresh update from 12.04, When I execute sudo nvidia-settings and ...
3
votes
0answers
511 views

UFW is DENY/DENY, but PACKETS are still getting out of my ethernet device. Why is this?

Hello, I have a question. I would like to use the UFW Ubuntu Firewall to lock both Input and Output completely from the server to ensure no packets are sent initially as a baseline. I enabled UFW, ...
3
votes
0answers
369 views

How to switch workspace via the Unity Desktop ICON via Mouse Wheel Specifically

I want to wheel over the "Workspace Icon" in the Unity Switcher to change desktops. (I know you can switch workspaces via COMPIZ which is ok for wheeling the desktop), but I would like to wheel over ...
3
votes
0answers
624 views

How to configure GRUB loader during apt-get upgrade on Ubuntu 12.04

I have a box with Ubuntu 12.04, and just did a apt-get upgrade. I'm presented with a dialogue to update my GRUB bootloader, but with the following message: The GRUB boot loader was previously ...
3
votes
0answers
2k views

Boot Repair - 'Close all package managers…' Dual Boot Installation

After almost a week, I've just about managed to install Ubuntu 12.04.3 LTS alongside Windows 8 on a Dell XPS 14 Ultrabook. I have created a partition in Windows to store Ubuntu, rebooted from Windows ...
3
votes
0answers
338 views

Issue Backporting SQLite 3.8.1 to Ubuntu Precise from Trusty

I'm pretty new to all of the packaging of Ubuntu applications and what not so this may not be the correct place to ask this question or there may be a more appropriate place to re-ask this question. ...
3
votes
0answers
422 views

Fn key combination *suddenly* stopped working for brightness only

I've looked at most of the questions relating to enabling hardware brightness control under Ubuntu with the Acer Aspire S3 laptop; initially these fixes worked, under the initially installed kernel ...
3
votes
0answers
291 views

nofile limit not changed for sh command in non-interactive session

Running 12.04.3 LTS A user submitting a batch job to the queue was receiving a 'too many open files error' Investigation suggested changing the /etc/security/limits.conf file which has been ...
3
votes
0answers
108 views

İnterfaces exceeds the height of the screen

I use a notebook with small screen, 1024:600 resolution with Ubuntu 12.04 LTS. When I try to save or open a document, the interface is exceeding the height of the screen leaving the buttons out of ...
3
votes
0answers
364 views

Very slow speed while mounting via SSHFS

My host is ubuntu 12.04. My guest is vanilla 3.0.33 kernel with custom rootfs. I have encountered the subj problem, while mounting host folder on the guest machine via sshfs. sshfs ...
3
votes
0answers
266 views

Canon MP600 USB-connected Scanner is not recognized by sane-find-scanner

I have a Canon Pixma MP600, which is supported by xsane with pixma backend. I have Xubuntu 12.04, this is the result of sudo sane-find-scanner -v command: searching for USB scanners: checking ...
3
votes
0answers
671 views

iwlwifi on lenovo z570 disabled by hardware switch

It was working fine with windows 7. The hardware switch is not disabled. I've toggled it back and forth dozens of times. The wifi light never turns on and it always lists as hardware disabled. I have ...
3
votes
0answers
165 views

LibreOffice Base in Ubuntu 12.04 LTS: Screenshot showing too small database number field

If I ask LibreOffice base to show me the result of a query, the resulting screen will show the total number of datasets and the number of the currently selected dataset on the bottom left. However, ...
3
votes
0answers
482 views

Mouse scroll wheel does not work for ubuntu 12.04 running under Hyper-V for Windows 8 Pro

I'm using Ubuntu 12.04 lts on a Hyper-V virtual machine (MS Windows 8 Pro) and I need some help with the mouse driver. The mouse responds fine in general: the cursor's moving, left/right click works ...
3
votes
0answers
686 views

No sound after update on Ubuntu 12.04

As the title says, my sound has gone missing after an update with update-manager. I have found the solution before, but then had to reinstall Ubuntu. It can't even detect my audio card. Here is a ...
3
votes
0answers
4k views

The XScreenSaver daemon doesn't seem to be running on “:0”

Since in Ubuntu 12.04 there weren't integrated screen savers (btw, why?), I looked for a tutorial online and installed XScreensaver 5.15. The problem is that it won't start the sccreen savers until ...
3
votes
0answers
2k views

Ubuntu Server Install Old Version of Firefox

What is the best way to go back a version of Firefox on Ubuntu server. This is a server without a GUI so command line is the only thing that can be used. Also once you install that old version how do ...
3
votes
0answers
2k views

Error During Apt-Mirror Unattended Install Of Ubuntu Server 12.04 Over Network Using PXE

I'm attempting to PXE boot and completely rebuild a new server with an "Ubuntu 12.04 Server" image over the network using apt-mirror but I get multiple errors mid-way through the installation. I am ...
3
votes
0answers
398 views

Despite ssh-agent, TortoiseHG keeps asking for the passphrase

I am using Ubuntu 12.04 and TortoiseHG to access repositories in Bitbucket. I use ssh keys for authentication. I run: ssh-agent then ssh-add and enter my passphrase. I can now use Mercurial and ...
3
votes
0answers
378 views

Wireless Problems After Resume

[Edit 3: Before you read all of this, I don't think this is a software issue anymore, so I'm not sure if there's a real solution that can be offered. I saw this video and read some of the comments. It ...
3
votes
0answers
239 views

Switched to Compiz for OpenGL on Xubuntu 12.04, now laptop screen doesn't turn on after a suspend

I recently added the CompizConfig settings manager to resolve screen tearing while watching full screen video (it worked! no more tearing!) but now every time I close the laptop screen and the system ...
3
votes
0answers
925 views

Are there any ways to install Awesome 3.5.1 on Ubuntu 12.04?

I'm doing to migrate from DE to WM, and like Awesome. But at home I use Ubuntu 13.04 and can install the newest Awesome. At work I use Ubuntu 12.04 and it is older then Awesome, so how can I install ...
3
votes
0answers
817 views

wifi usb dongle detected but no wlan interface

I'm using ubuntu 12.04. When I insert my philips PTA01 usb wifi dongle, in dmesg i can see: [ 1181.535290] usb 2-3: new high-speed USB device number 4 using ehci_hcd [ 1181.684074] usb 2-3: New USB ...
3
votes
0answers
654 views

Save and restore window positions

Here is my configuration: Ubuntu 12.04 (with Unity) Laptop External screen to use the laptop in dual screen mode Several windows spread on both screens and on 4 workspaces When I have meetings I ...
3
votes
0answers
2k views

/dev/nvidiactl not present

I have an NVIDIA GT 540M (based on lspci output) graphics card and am trying to install its drivers. I have tried various options like downloading from NVIDIA's website, CUDA 4.2 homepage (Cannot post ...
3
votes
0answers
334 views

lvm disappeared after disc replacement on raid10

here my problem: I am running ubuntu 12.04 on a raid10 (4 disks), on top of which I installed an lvm with two volume groups (one for /, one for /home). The layout of the disks are as follows: Disk ...
3
votes
0answers
240 views

raise and focus running application when opening file in nautilus?

I'm using Ubuntu 12.04 with and would like to know how I can configure it so that when I double click on a file, and it opens it with an already running program, it will raise and focus that program. ...
3
votes
0answers
298 views

How do I wake up the printer when it sleeps?

I am running Ubuntu 12.04 on an LTSP network. I have attached a printer to the server via USB. The printer is an HP LaserJet Pro P1102 with driver Foomatic/foo2zjs-z2 (recommended). Often the ...
3
votes
0answers
539 views

How can I monitor cloud-init for errors, and trigger a script when it fails?

I'm using cloud-init to provision servers in AWS, and would like my servers to send an email when they're done (whether they fail or succeed). For successful cloud-init runs, the solution is trivial. ...
3
votes
0answers
250 views

ubuntu 12.10 lock-screen unlockable with old ldap password

I have an ldap server that serves Ubuntu clients and there is a problem when unlocking the screen after a user has changed their password. Initial login works as expected: the user can log in with ...
3
votes
0answers
410 views

msmtp not working?

I was trying to send mail from bash, but it doesn't work and I can't find the reason... So my .msmtprc file is account default host smtp.gmail.com port 587 from account@gmail.com tls on tls_starttls ...
3
votes
0answers
236 views

Thunar not displaying thumbnails for text files

I have gone through all other posts on thunar thumbnailing issue but this one doesn't seem to match any of those; nor on the web anyone seems to have this problem, so I couldn't find solution on ...
3
votes
0answers
1k views

Error while recording a RTSP stream with avconv

I need to losslessly record a RTSP stream of an Axis 211a camera using avconv on Ubuntu 12.04. I am using this command : avconv -rtsp_transport tcp -f rtsp -i rtsp://<IP>/mpeg4/media.amp ...