Latest Ubuntu related questions

Score: 1
Laider Lai avatar
Incomplete source code in plainbox-provider-snappy repository
eh flag

For the purpose of adding new test cases for CDTS I'm following the official document ( to git clone plainbox-provider-snappy repository.

But the bin, data and units directories mentioned in the official documentation are not in this repository.

Browsing the source tree from, I still find ...

Score: 0
Purna Mahesh avatar
Errors in Adding repos
in flag

I'm using Ubuntu 21.04. Everytime i try to add repositories I'm getting the following errors and I'm not able to install any applications. This is not happening for a specific repo, but for every repo.

Refer this example

root@mahesh-3567:/home/mahesh# sudo add-apt-repository 'deb hirsuite main'
Repository: 'deb hirsuite ma ...
Score: 1
Ryhan avatar
How to check if preload is running or not?
cn flag

I've installed preload like 4-5 days ago. Still I can't see any performance difference. Is there any way to check if preload is running or not? I checked on system monitor but couldn't find it. I'm using Ubuntu 20.04 LTS.

Score: 0
Setting default boot option as ubuntu
cn flag

I have been struggling with setting ubuntu as the default os on boot. For the last 1 year i have been making do with pressing F9 on startup. I have tried almost all solutions provided on the internet (I hope so).
I use Hp pavilion 15-dk0047tx.

When trying to change the order from BIOS,pressing F5/F6 puts ubuntu above Windows, but pressing enter doesn't save the configuration and computer loads into  ...

Score: 0
Casper avatar
My system isn’t bootable, how can I do a kernel update?
fr flag

My system isn’t bootable because the hardware in my laptop is unsupported by the linux kernel I’m using. Is there a way I am able to boot into a live USB on my laptop, update the kernel on my laptop and boot back again?

Score: 1
Dan avatar
Turning off all password prompts for specific user
cn flag

I'm looking to turn off all password authentication prompts for a specific user (let's say Steve) on my Ubuntu 21.04 machine.

I added the line steve ALL=(ALL) NOPASSWD: ALL using sudo visudo and that removed the need to authenticate Steve's password when using sudo commands. However, I still get password authentication prompts when using GUI applications such as Ubuntu Software.

Is there a way to turn t ...

Score: 0
Nicholas Saunders avatar
how to start the snap install of tomcat?
mx flag

How is the tomcat server started?

nicholas@mordor:~$ sudo systemctl start tomcat
Failed to start tomcat.service: Unit tomcat.service not found.
nicholas@mordor:~$ sudo systemctl enable tomcat
Failed to enable unit: Unit file tomcat.service does not exist.
nicholas@mordor:~$ snap info tomcat-with-ssl
name:      tomcat-with-ssl
summary:    ...
Score: 4
BCM4352 802.11ac Wireless Network Adapter not working on kernel 5.11 and ubuntu 20.04
cn flag

Right now it works with kernel 5.8 but in 5.11 (installed this morning along other upgrades) the wifi adapter doesn't get detected at all and apparently there are no fixes until the drivers gets patched (unless i'm mistaken). Do someone know if/when bcmwl-kernel-source will get patched?

edit: current version of bcmwl-kernel-source is

PS: To be honest each time there's a ke ...

Score: 0
oakpep avatar
Can't update GRUB
us flag

Yesterday I enlarged the system partition using gparted. Everything went fine, I rebooted and everything worked. This morning after turning on and selecting linux from bootlader - it does not turn on. I read that I should update GRUB, I use boot-repair with live-usb for this. Unfortunately the operation failed I'm getting these errors.

I also tried to repair and reinstall grub using a live USB accordi ...

Score: 2
do-release-upgrade silently fails upgrading from 18.04 LTS to 20.04 LTS in WSL
ru flag

It's high time I upgrade Ubuntu from 18.04 to 20.04! But I don't get very far before the process aborts without an error message. Is there a log file I can check for further information?

$ uname -a
Linux tribble 5.4.72-microsoft-standard-WSL2 #1 SMP Wed Oct 28 23:40:43 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubunt ...
Score: 0
Marshhh avatar
GRUB and system boot order not detecting Windows
es flag

Recently, I tried to dual boot Ubuntu alongside windows 10. I didn't have free space on my windows partition, i.e, C:, so, made a partition in the D: drive and installed Ubuntu on it. I ran into several problems, like after turning on my laptop, my screen continuously showed No Boot device found. Hence, I tried to go into boot order settings by pressing F9 and my system was able to boot into Ubuntu by B ...

Score: 0
user241990 avatar
sudo apt-get update failed to Cannot initiate the connection to, where able to perform apt-get update root
cn flag

Am using ubuntu 20.04, where using proxy to connect internet.

Able to perform "apt-get update" as "root"

where not able to perform "apt-get update" && apt-get install vnc" as non-root user with sudo prefix

Score: 1
koyakun avatar
Why do Japanese keyboard arrow keys scroll in LibreOffice Calc but move cell with US keyboard layout?
cn flag

After upgrading to Ubuntu 21.04, the arrow keys on my USB Japanese 108-key keyboard scroll in LibreOffice Calc as though scroll lock is toggled on (even though the scroll lock light is not on) instead of moving the selected cell. (Actually, this happens with the US-intl keyboard layout too.) The arrow keys work as expected in other programs though, including LibreOffice Writer.

If I switch to the ...

Score: 0
REZ amer avatar
Is there a specific control panel for intel HD graphics in Ububtu
us flag

I have and Intel HD Graphics (1st gen) (ironlake)

Score: 0
pvdb avatar
How to change the Microsoft account for OneDrive in Ubuntu
lk flag

I have installed onedrive (version v2.4.13-9-g7857a50) on Ubuntu 20.04 LTS.

After using my (test) microsoft account I want to use my "production" microsoft account.

I did the following : rename ~/.config/onedrive/refresh_token into refresh_token_backup and removed the originale file. After starting Onedrive it still uses my test MS-account.

Have someone a solution for me ?

rgds pvdb

Score: 0
El Señor Gato avatar
Problems updating Kubuntu 20.04.02 Focal Fossa - Many error messages
lb flag

I have a problem updating my system. For some reason error messages are being displayed in Spanish even though I don't use it.

This is the error message what I got in terminal

E: El repositorio «cdrom://Kubuntu LTS _Focal Fossa_ - Release amd64 (20210209.1) focal Release» no tiene un fichero de Publicación.
N: No se puede actualizar de un repositorio como este de forma segura y por tanto  ...
Score: 0
How to view which packages /files where updated last and when, is there a list online?
cz flag

I'm running Ubuntu 20.04 and I'm trying to find out which packages and files where updated/changed last and when on a machine, also is there a list online that says which packages are the latest for an LTS and what was changed?

I know about

cat /var/log/dpkg.log | grep "\ install\ "

and it gives me

2021-08-03 11:30:12 install libjcat1:amd64 <none> 0.1.3-2~ubuntu20.04.1
2021-08-03 11:30:18 inst ...
Score: 0
nautanasgiseda avatar
USB/SATA cable simply does not work on Ubuntu
al flag

I couldn't find an answer to my problem because all other similar questions have Ubuntu properly recognize the external HDD as a storage medium and assign it to /dev/sdb. If only it were this easy. It doesn't matter what HDD I plug into the cable, Ubuntu just does not recognize it. A /dev/sd[x] link is never assigned to it. lsusb lists the drive as ID 1234:5678 Brain Actuated Technologies VLI Prod ...

Score: 0
Mippi avatar
Problem with installation of nvidia driver 340 after last update ubuntu 20.04
cn flag

After yesterday update of Ubuntu 20.04, I am not able to install nvidia driver 340 and all Ubuntu systems with driver 340 crashed:( Has somebody met the same problem? Is there any simple and quick solution? All suggestions are very welcome.

I have Nvidia Quadro NVS 295. The systems have worked for last two years without any problem. Since last update All are crashed.

I tried to reinstall one of them ...

Score: 0
HDD not installed after Ubuntu install Ideapad 15ALC05
cn flag

I got an brand new 15ALC05 (ryzen 7) and tried to setup ubuntu( LTS)  dual boot using a bootable usb drive. After successful installation when I tried to restart I get the boot menu with Windows boot manager, Ubuntu and Setup. The only option that works is "Setup" that takes me to Bios setup.   Also in the Information tab in the Bios setup I see "HDD : Not installed".   I called up Lenovo su ...

Score: 1
Mike DeSimone avatar
How to reduce/restrict resolution on startup
tr flag

I've got an old Intel Haswell NUC using onboard Intel graphics connected to a new LG monitor with a native resolution of 1920x1080 on the HDMI port.

However, on startup (right after Grub hands off to the kernel, before the "Ubuntu" screen shows up with the spinny triskelion thing) the system decides to change the resolution to 3840x2160 at 30 Hz, which the screen resamples down to its native 1920 ...

Score: 0
kws3778 avatar
Screen flickering after upgrade to Ubuntu 20.04
za flag

I recently upgraded from Ubuntu 18.04 to 20.04 LTS on my laptop (Lenovo Ideapad FLEX 6-14IKB). After a while the screen would start flickering (similar to the video in this post here). I notice that sometimes it would flicker a lot an then stop for a while - it would usually happen more often when I'm actively browsing Chrome/Firefox. The issue does not exist on an external monitor that I connect ...

Score: 0
Tameni Rahman avatar
How can I increase trackpad sensitivity?
kr flag

I am new to Linux and downloaded Ubuntu 20.04. My trackpad isn't working properly. I have to press down somewhat to use the trackpad. That is the only time it works. How do I increase the sensitivity?

Score: 1
jones0610 avatar
Audio keeps turning off in Firefox 90.0.2, Ubuntu 20.04.2 LTS
br flag

I suspect this might be a Firefox bug except that all was working fine and seemed to all of a sudden break. This did not start happening immediately after any update or system change.

Obvious and easily repeatable symptoms are playing a youtube video on Firefox. Audio will be turned off. If you go into settings and move the firefox audio slider to full it will only stay there for a brief perio ...

Score: 0
AFG VM avatar
Edit "PermitRootLogin yes",
in flag

I am trying to edit "PermitRootLogin yes" to "PermitRootLogin no" on a VM ESXi host. When I try to edit it using VI at /etc/ssh/sshd_config, it is in Read Only mode. I tried the override wq! and it is not saving. I get SSHD is "Read Only". How can I edit this file? I am logged in as root.

Score: 0
ufw ignore rules after iptables -F
si flag

This problem happens after iptables -F and only way to solve it, is to reboot PC. I tried ufw reload , too

ufw status 
Status: active

To                         Action      From
--                         ------      ----
8080                       ALLOW OUT   Anywhere                  
8080 (v6)                  ALLOW OUT   Anywhere (v6)  
#iptables -L 
Chain INPUT (policy ACCEPT)
target     pro ...
Score: 0
No WiFi adapter found after moving from Windows
cn flag

Just moved from Windows to Linux Ubuntu, it says I don’t have a WiFi adapter when I have a TP-Link Archer T2U Plus plugged in.

I have looked online and most have said things like connect Ethernet and Mobile Tethering when I don’t have access to both of those.

And I have already disabled Secure Boot.

Bus 005 Device 002: ID 2357:0120 TP-Link Archer T2U PLUS [RTL8821AU] Ubuntu Version 21.04

Score: 0
Using Keyboard Shortcut to switch to existing Google Chrome window
ru flag

using a custom shortcut (Ctrl+Alt+Shift+C) how can I switch to existing Google chrome window ?

Currently it launches a new window, for mapping of (Ctrl+Alt+Shift+C) -> /usr/bin/google-chrome

Score: 0
Kris avatar
Problem setting GPU as primary video card
ve flag

I'm new to linux and am having a bit of trouble setting my GPU up as my primary video adapter. That being said, a little background info is in order. I'm currently running linux on a MSI laptop that has an dedicated nVidia GeForce 1050 video card and a Intel chip that uses HD graphics. I want to set up the nVidia card as my primary so I can still play a few graphic intensive games every so often, games  ...

The Stunning Power of Questions

Much of an executive’s workday is spent asking others for information—requesting status updates from a team leader, for example, or questioning a counterpart in a tense negotiation. Yet unlike professionals such as litigators, journalists, and doctors, who are taught how to ask questions as an essential part of their training, few executives think of questioning as a skill that can be honed—or consider how their own answers to questions could make conversations more productive.

That’s a missed opportunity. Questioning is a uniquely powerful tool for unlocking value in organizations: It spurs learning and the exchange of ideas, it fuels innovation and performance improvement, it builds rapport and trust among team members. And it can mitigate business risk by uncovering unforeseen pitfalls and hazards.

For some people, questioning comes easily. Their natural inquisitiveness, emotional intelligence, and ability to read people put the ideal question on the tip of their tongue. But most of us don’t ask enough questions, nor do we pose our inquiries in an optimal way.

The good news is that by asking questions, we naturally improve our emotional intelligence, which in turn makes us better questioners—a virtuous cycle. In this article, we draw on insights from behavioral science research to explore how the way we frame questions and choose to answer our counterparts can influence the outcome of conversations. We offer guidance for choosing the best type, tone, sequence, and framing of questions and for deciding what and how much information to share to reap the most benefit from our interactions, not just for ourselves but for our organizations.