Latest Ubuntu related questions

Score: 0
VictorL avatar
ubuntu doesnot diplay the login screen when "join display" is select and there is only one monitor
is flag

I spent a night to debug why the login screen is not showing up. I was able to blindly type in my password to login to a colored background but empty screen.

The problem persisted after I upgraded the system from 18.04 to 20.04.

When the screen wakes up from an idle state, the login GUI does show up and everything was normal.

one problem I have found was that display setting was configured to "join dis ...

Score: 1
Mauro F. avatar
Removed LVM swap partition, and now booting takes a lot of time because of errors
cn flag

Context

Originally I had the following partition structure

nvme0n1
├─nvme0n1p1             /boot/efi
└─nvme0n1p2
  ├─ubuntu--vg-root     /
  └─ubuntu--vg-swap_1   swap

Then I decided to remove the swap partition and use, instead, a swapfile. I created a file, called mkswap /swapfile on it, swapoff -a and then swapon /swapfile. I then edited /etc/fstab and changed the line

/dev/ma ...
Score: -2
Mohammad Tamim avatar
After creating catkin workspace for ros noetic i received the following message
gb flag
bash: /home/mohammad/catkim_ws/devel/setup.bash: No such file or directory

enter image description here

Score: 2
Vitor avatar
Ubuntu 20.04.3 - Display resolution stuck at 640x480 after fresh install
cn flag

The Problem

So, this was my first time doing this. I prepared the bootable pendrive, followed the steps of installation and saw everything working fine using the preview feature, with the correct resolution: 1920x1080. The problem is: after i properly installed Ubuntu and rebooted my PC, the screen resolution dropped to 640x480 and the options to change that back are not available in the configs.

Score: 0
Why System Monitor doesn't show all processes, though I selected "All"?
ph flag

I selected "All processes". I see that it eats 2%-4% CPU:

enter image description here

However, in "Resources" all cores are loaded way higher:

enter image description here

"All processes" are selected:

enter image description here

And I run it as sudo

Any ideas? How to see all this hidden CPU activity? Thank you!

Score: 0
Yugoo avatar
I cannot open Visual Studio Code using terminal on WSL Ubuntu
br flag

I am pretty sure, I have VS code on my WSL Ubuntu. But when I run the command code to open VS code it does not seem to work. I have also tried running the following command:

sudo apt install

But I get an error:

E:cannot locate package error

How do I open VS Code?

Score: 0
Andyc avatar
How to share a CD-ROM drive over the network in Ubuntu 20.04?
es flag

I have 3 Computers and only one of them is old enough to have a CD/DVD-ROM drive. I would like to access the media from the other computers as well.

I have mounted it under /media in the computer where the drive is attached and then tried to access it via sshfs from the other computers by connecting it with Nautilus. I get the error message "You don't have the permissions necessary to view the content o ...

Score: 0
dn1MEaQN avatar
Auto detect history in terminal?
mx flag

I've seen when people are typing in their terminal it shows an auto suggestion in gray based on their history as they're typing.

How can I have that in my terminal?

Score: 0
Wayne Gregori avatar
chrome remote desktop, headless install, black screen when accessed
cn flag

I've got an ubuntu 20.04 desktop that I'm trying to access with chrome remote desktop. I had troubles installing via the gui so I went through the "headless" installation. When I connect via the client machine, I'm asked to select a session, default or current ubuntu. No matter which that I select I get a blank (black) screen with an x for a cursor.

Any ideas? Wayne

Score: 1
MDoe avatar
How do I revert the last installed updates?
gb flag

Today I just clicked yes to a few updates that my Ubuntu 20.04 LTS suggested. Since then, when I boot up my laptop everything is fine. But when it goes to suspend and wakes up the screen is flickering like every other second. When I log out and in again, the flickering is gone, but of course my session is as well and I have to start all applications again. Therefore I would like to undo whatever I have  ...

Score: 0
Internet connection problems with ubuntu server VM network
in flag

so i'm pretty new in networks and wanna test some stuff in a virtual machine first.

I've build a small VM network with Ubuntu Servers. You can look at network diagramm by clicking on this link (ignore the switches, they are only for ilustrational purpose). So basically i wanted to connect two networks with a linux server which is configured as a router. The problem is that now the communication between t ...

Score: 1
MentallyIrregular avatar
Accidentally removed my entire taskbar. How do I get it back? (Kubuntu 18.04)
jp flag

Ok. I somehow ended up with a Chromium icon right beside ...whatever Kubuntu calls the Start button on taskbar on the bottom. In trying to remove that, the entire thing is now gone and pressing the windows key on the keyboard no longer brings up the app launcher thing.

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