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1500 questions
120
votes
15 answers

How do I disable the drum beat sound on the login screen?

I would have expected System ▸ Administration ▸ Login Screen ▸ Play login sound to control this, but unchecking it does not prevent the drum beat sound from playing.
ændrük
  • 76,794
120
votes
9 answers

vim is not remembering last position

My Ubuntu LTS 12.04 has vim editor. If I open a file, move to a paragraph and reopen vim, then the cursor goes to beginning of the file always. This is not the expected behavior. How the vim can remember last read position after closing a file? I…
Lunar Mushrooms
  • 3,975
120
votes
30 answers

External monitor not detected on Ubuntu 18.04

After upgrading to Ubuntu 18.04, my laptop has been unable to detect/use an external monitor attached via HDMI. Even when plugged in, the "detect displays" button within the default settings app doesn't do anything. Here is the output from…
PullJosh
  • 1,311
119
votes
4 answers

How to install pgAdmin 4 in desktop mode on Ubuntu

How to install pgAdmin 4 in desktop mode? The documentation only details server mode.
Victor
  • 9,313
119
votes
5 answers

How do I turn off Caps Lock (the lock, not the key) by command line?

For some reason my laptop is stuck in Caps Lock. I have the Caps Lock key mapped by xmodmap to hyper_l, so I don't have a caps_lock key to turn it off. Is there a way I can turn it off by command line? It would be nice if I could reset the lock…
Echogene
  • 2,295
119
votes
5 answers

How to get GRUB to be the default bootloader instead of Windows Boot Manager on a UEFI laptop?

I've got an HP Pavilion Touchsmart notebook that came with Windows 8. I've upgraded to 8.1, and now I want to dual-boot an Ubuntu distribution with Windows 10. When dual-booting with Windows 8.1, the Windows Boot Manager always took priority, even…
Michael Hoffmann
  • 3,595
119
votes
11 answers

Turn off monitor using command line

I am runnning Ubuntu Server on my laptop. There is really no reason for the screen to be on. I have been trying to use this command to turn the screen off: sleep 1 && xset dpms force off The problem is I get the following error unable to open…
AngryBird
  • 1,191
119
votes
2 answers

What is the correct way to edit a crontab file?

I am trying to automate the refreshing of awstats for my webserver and understand that I need to use cron to set that up. So each user has a crontab file? I was following the instructions here community/AWStats And it says to go to the file at:…
timbram
  • 1,995
119
votes
10 answers

How to stop using built-in home directory encryption?

I have a new Ubuntu 10.04 installation with encrypted home directory (using the built-in encryption offered by Ubuntu installer). What's the easiest way to stop using encryption? (I.e., to decrypt my home directory permanently.) (It's giving me…
Jonik
  • 7,178
119
votes
10 answers

How to remove/install a package that is not fully installed?

I went to install bsnes the other day and, for whatever reason, the installation failed. Now, I cannot update, install new packages, or do basically any apt-get commands as they all try to process this broken package and fail. Attempting to install…
Bijak
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119
votes
10 answers

How to install pip for python 3 in ubuntu 12.04 LTS

I am trying to install the Pillow module for python 3.3, but for that I need to install pip. Every time that I install pip it installs for python 2.7, any help?
BCasaleiro
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119
votes
8 answers

How to add a GPG key to the apt sources keyring?

Ubuntu Doc page says this: It is advisable that you add the Opera GPG key. wget -qO - http://deb.opera.com/archive.key | sudo apt-key add - Where do I add that? I want to take the advice but I don't know what part of software center to add gpg…
bruce
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119
votes
4 answers

kswapd0 is taking a lot of cpu

kswapd0 is taking 99.9% of my CPU as top shows me, the problem appeared today when gaming and first time it went away after 6 minutes and now it has been doing it for about 20 minutes. How is this fixable and what is causing this?
inimene
  • 2,106
119
votes
5 answers

How to find all the used IP addresses on a network

In my work there is a lot of computer and I want make a joke. I can close computer over the network but finding IP addresses is hard to me. How can I easily find all online IP adresses from 192.168.1.aa to 192.168.1.zz?
user84277
119
votes
2 answers

How to save rules of the iptables?

I create the rules to iptables. But, when I restart the computer, the rules don't work! How to save the rules on Ubuntu ? The was problem solved! do: After of the write the commands iptables, do: 1. sudo su 2. iptables-save > /etc/iptables.rules …
Gustavo
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