Latest Ubuntu related questions

Score: 0
Gaaius avatar
Primary Monitor briefly turns off (and rearranges windows) when Secondary Monitor (connected via Displayport) is turned off
vn flag

The Problem at hand is DisplayPort itself, as turning of a monitor connected with it will terminate all connection to the computer, making it think that that monitor was removed and therefore rearranging the windows.

Motivation: This is unacceptable (to me) as it prevents me from quickly looking at the secondary monitor, without interfereng with my primary one. (This Problem didnt occur when my seconda ...

Score: -3
Les Pivnic avatar
How to delete 12.10 Ubuntu completely
es flag

I need a simple guide to completely deleting Ubuntu 12.10 from my laptop in order to install the latest 20.04.2.0 LTS. I am not an IT fundi and I need a simple guide that I can follow.

Score: 0
youngfong avatar
Is my postfix mail configuration correct? (Emails aren't being received)
kp flag

I'm very much a linux noob and greatly appreciate any help and patience you can provide.

I'm running Ubuntu 21.04

Email setup instructions from web host:

I'm trying to setup mail to be sent via postfix.

This is my configuration from:

nano /etc/postfix/main.cf
# See /usr/share/postfix/main.cf.dist for a commented, more complete version


# Debian specific:  Specifying a file name will cause the first
# l ...
Score: 1
Avatar avatar
How to run a .sh file on startup
us flag

I'm using Ubuntu 20.04 LTS. In my laptop, Bluetooth is not enabled by default. It shows that NO Bluetooth found. Plug in a dongle to use Bluetooth. I installed Bluez bluetooth and it activates my Bluetooth but I have to run some commands in order for it to activate every time I turn on my laptop.

Commands I have to run are,

sudo /etc/init.d/bluetooth start
systemctl start bluetooth
sudo modprobe bt ...
Score: 1
BiosRootKit avatar
Is there a way to make a "sound" surveillance script?
it flag

I'm looking a way to built something like a sound surveillance box.

I mean something that records audio/video on sound events captured by microphone.

For example it should record 5 seconds audio/video before the first sound/noise event and 5 seconds after the last sound/noise event.

This trick should run on raspberry then I'm looking for command line suggestion like ffmpeg, sox and so on.

Maybe I'll not ...

Score: 0
antoine avatar
How to change Firefox tab switcher keybind from ctrl tab to alt tab
hk flag

I tried https://github.com/xiaoxiaoflood/firefox-scripts/tree/master/extensions/keyconfig but it kept saying addon corrupted even after I did the userchromejs steps.

I'm on Ubuntu 21.04 using Firefox stable 91.0.1 that was installed by default

Score: 0
Mumuzab avatar
On Lutris, Epic Store games running on Integrated Graphics despite Epic Store launcher itself running on Dedicated GPU
us flag

My laptop has an AMD Hainan Dedicated GPU and Intel Integrated Graphics 520. I installed Epic Games Launcher from the install script provided on the Lutris' website. I ran Lutris with DRI_PRIME=1 and then, ran Epic Store Launcher. I monitored my dGPU usage through radeontop. My laptop is perfectly using my dGPU when running Epic Games launcher, but switching back to Intel Integrated Graphics when  ...

Score: 1
wurlyfan avatar
Puddletag-snap can't see files on NTFS drives
ca flag

I'm having the same problem as in this post, which was marked "solved" without a real solution: Application (puddletag) can not open files from second drive, only files located at /home/user/* (solved).

Puddletag works fine on Ubuntu 18.04 (dual boot on same PC), but now that I'm running 20.04 with MATE 1.24.0 I can only find puddletag-snap and it doesn't see the same files on the same computer as  ...

Score: 0
CHI NEW avatar
Where are my missing disk?
it flag

There is 78GB what I see in the tool "Disk", the 78GB is mounted at /home. But in "Disk Usage" there is only 20GB total in my ubuntu, which is mounted at Filesystem Root.
I am sure that I take 100GB to Ubuntu from my hard disk.
So where is my lost 78GB of space? Please help me. Many thanks! Picture 1

There is another picture.Picture 2

Score: 2
ThomasHunter avatar
memory empty but swap full?
cn flag

I'm on Ubuntu mate 21.04 with swappiness set to default 60. Why is the system predominantly using the swap if there is ~55 GB of empty memory? The swap file is on nvme drive but memory is still faster so why with the default swappiness it is not being used more?

enter image description here

Score: 0
Pratyparty avatar
Unable to resolve 'download.nodesource.com'
ng flag

Whenever I run sudo apt-get update, I always get this error

Err:1 https://download.nodesource.com focal InRelease
Could not resolve 'download.nodesource.com'

This is the warning that I get at the end of the process

W: Failed to fetch https://download.nodesource.com/dists/focal/InRelease  Could not resolve 'download.nodesource.com'

I tried searching for the error on google to no vain.

Score: 0
CD/DVD external drive not recognized by Ubuntu 20.04
br flag

My new computer came without a CD/DVD drive and I have tons of stuff backed up on CDs and DVDs. Besides, my wife still likes these out-of-favour kind of media to store family photos, etc. I then bought and external CD/DVD drive which I connect to my desktop via an USB port. But the system does not recognize it. It seems mechanically fine, as I can open its tray, insert the medium, close the tray and the ...

Score: 0
Web cam not working on ThinkPad P14s AMD Ubuntu 20.04
cn flag

The integrated web cam on the ThinkPad P14S AMD is not working while running on Ubuntu 20.04

I run lsusb and I get the following

Bus 007 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 006 Device 003: ID 8087:0029 Intel Corp. 
Bus 006 Device 002: ID 06cb:00bd Synaptics, Inc. 
Bus 006 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0003 Linux Foundation 3.0 ...
Score: 0
Guytas avatar
Missing libtiff4 while installing Canon MX410 driver on Ubuntu 21.04
in flag

I'm really excited about uing Ubuntu as my main OK. But I still have a couple of things to resolve before I can do that. The first one is to be able to connect to my Canon MX410 printer. I have found the installation drivers but there was a few dependencies that failed. So far I was able to find them all but one: libtiff4

I found several things on the net explaining how to install them but th ...

Score: 1
antoine avatar
How to get xcb/xcb_icccm.h
hk flag

I am trying to build bspwm, how do I get that dependency? I already have xcb installed. I'm on Ubuntu 21.04, the error message is

cc -std=c99 -pedantic -Wall -Wextra -DJSMN_STRICT -D_POSIX_C_SOURCE=200809L -DVERSION=\"0.9.10-33-ge22d0fa\"  -c -o bspwm.o src/bspwm.c
In file included from src/bspwm.c:39:
src/types.h:29:10: fatal error: xcb/xcb_icccm.h: No such file or directory
   29 | #include <x ...

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