Latest Ubuntu related questions

Score: 0
rjhanson avatar
black screen after reboot with a twist
mx flag

Got a black screen after an update and reboot.

Ubuntu 21.04, HP Laptop

Note: I am not an expert.

After trying all the "this will work" ideas on the internet, I saw one that said to reset my GRUB. At boot I finally got to the safe mode and clicked on the GRUB step and rebooted.

My laptop screen started working again. I updated Ubuntu thinking I am good to go, rebooted and black screen again. I have ...

Score: 2
Ewan avatar
WiFi adapter not working on XPS 13 9310, Ubuntu 20.04
in flag

I recently received an XPS 13 9310 from my new employer and replaced its operating system with Ubuntu 20.04.

I haven't been able to get the WiFi working correctly - sometimes the adapter will show up and work for a bit, and sometimes it won't.

Ethernet seems to work fine.

All the threads I've found by googling have similar issues but not quite the same and their solutions haven't worked for me - they m ...

Score: 0
How to manage number of cores used on my institution's server
in flag

I'm using a remote server where I'm not supposed to request more than 24 of the 100 cores.

I'm running a couple of R scripts which seem to be using too many...

How can I tell, in htop, how many cores an individual user (myself) is using? I can see the 'load average', which is for all users, and I can add up the MEM% for my processes.

Is there some R command I could use to limit the number of cores? The ...

Score: 0
Eric Huelin avatar
How do I edit hosts files? Lubuntu 20.04
es flag

Normally I get a access denied even after I change it's permission to 777.

I see many solutions

Use gedit, dunno how to get use or find whatever that is.

Other solutions use the terminal sudo -i gedit /etc/hosts Sure but I don't know how to save a file from the terminal, CTRL+D does nothing.

Try sudo nano /etc/hosts I get: No such file or directory

Try the this program: hostsed but it is also denie ...

Score: 0
Nicki avatar
Ubuntu 20.04: stuck GNOME
ru flag

I need help with the following problem:

I am using an Ubuntu 20.04 virtual machine and when I start it it does not boot and stays stuck as shown in the image below.

enter image description here

Started GNOME Display Manager.ss finishes up...ally. system changes.pp link was shut down...

I've been looking at some possible solutions but:

  1. I can't access tty via keyboard shortcuts.
  2. I can only access riit t ...
Score: 0
How can I copy files from .ssh directory using "try ubuntu from usb"?
in flag

My disk is breaking up and won't boot. I managed to get it mounted while using Ubuntu from a usb. I want to copy my private keys from .ssh and do a clean install. But, when I try to cd to .ssh in my home directory I get "Permission denied". Is there a way to access the .ssh directory? My home directory is not encrypted.

Score: 1
Jeff avatar
Ubuntu 21.04 boot hangs at logo
cn flag

I tried to install playonlinux on Ubuntu 21.04. When the installation was finished, I had lost my wifi connection. So, I tried to re-boot, however boot-up stalls at the ubuntu logo.

Hitting escape at that point I get a screen with "Dependency failed for SSSD" services. The services listed are NSS, toFS, PAC, vice, PAM, SSH, Sudo.

At the first stage of booting I can escape to the Grub menu. From  ...

Score: 0
All of my websites are using dark mode in Google Chrome but unclear why?
th flag

I have Google Chrome installed with google-chrome-stable from apt on ubuntu 21.04

It says the version is Version 92.0.4515.107 (Official Build) (64-bit)

Currently all websites have a dark mode which I don't necessarily want.

Chromium and Firefox on the same computer do not have the same issue

For example this website (unix.stackexchange.com) looks like this

Note that interestingly, in devtools, run ...

Score: 0
K3b Blu Ray burns sometimes run out of space, using Ubuntu 18.04
cn flag

This failure seems to take place with a nearly full Blu Ray K3b data project, just as it's finishing up the writing, and right before it normally starts verifying the files burned correctly. My work around is to leave more available space than it says it needs. See attached:Image shows: 23.2 Gib used, and 118.3 MiB Available, then crash shows the same 23.2 Gib used, but Capacity exceeded by 137.7 MiB  ...

Score: 0
systemctl does not see service apt install on Kubuntu 21.04 installed itself
tr flag

Hi my problem is neatly summarised by this:

mike@gamer:~$ sudo apt install xvfb
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
xvfb is already the newest version (2:1.20.11-1ubuntu1.1).
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.

mike@gamer:~$ sudo systemctl status xvfb
Unit xvfb.service could not be found.

mike@gamer:~$ su ...
Score: 0
Laszlo Toth avatar
Several type of Linux logs collecting, correlation, evaluation and system maintenance
dk flag

I have an Ubuntu 20.04 home-purpose-usage operating system. Sometimes to fine-tuning or look after a problem I need to see some logs and correlate them to other type of logs. I have already realized that several types of logs created continuously: application logs kernel logs, HW device logs operating system logs

I have an intention to collect as many type of logs as I can then consolidate &  ...

Score: 1
Hamm avatar
Autostart issues running simple xrandr script on start up
jp flag

I've created a simple startup script so that I can use my Ultrawide Monitor with Ubuntu 21.04 (should be similar with the previous version as well). However when I configured this script to be run on startup using 'Autostart' I get an error upon startup instead with the script unable to run. Manually running the script works fine - It's a pain to run it on every start manually....

Anyhow I get thi ...

Score: 1
Benzle avatar
How to get menu bar back after hidden in all KDE program windows
us flag

The top, "File, Edit..." menu is gone from all my KDE program windows. Not sure what I changed.

I tried ctrl+m, looked in EVERY setting I can find for days but can not find a way to get my File menu back.

Best I can do is add a an item to the Title Bar buttons for, "Application Menu" which is ok but not what I want.

Menus gone

Score: 1
JXuan avatar
Cannot open settings and gnome-control-center in Ubuntu 18.04
nl flag

When I attempt to open settings, the icon spins for some seconds and disappears afterwards.

In terminal I used the command

gnome-control-center

and this error shows up:

gnome-control-center: error while loading shared libraries: libndr-standard.so.0: cannot open shared object file: No such file or directory

I use grep to search for libndr-standard.so.0 but there is no such file in /etc.

I also ...

Score: 0
Fisher avatar
I dont know how to reinstall windows correctly
br flag

I have setup a single boot Ubuntu 20.04 system and want to revert back to windows 10, I have an windows iso file on a usb ready but I don't know how to usb start up windows on Ubuntu I tried the same way I did to go to Ubuntu but nothing

Score: 0
nocturno avatar
Service Active: inactive (dead)
br flag

This is the script:

#!/bin/bash
setterm --blank 1 --powerdown 2

This is the service:

[Unit]
Description=Blank screen after 1 min and turn it off after 2 min. Any keypress will turn it back on.
After=ssh.service

[Service]
Type=oneshot
Environment=TERM=linux
StandardOutput=tty
TTYPath=/dev/console
ExecStart=/home/USER/.boot-scripts/screen-off.sh

[Install]
WantedBy=local.target

if I enable it and sta ...

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