Latest Ubuntu related questions

Score: 2
rhoward avatar
4K graphics problems with Intel NUC11 with Ubuntu 20.04 LTS
in flag

I recently purchased an Intel NUC11 i7. I have been unable to get a stable picture when using the monitor at 3840x2160 @ 60hz. The screen just switches on and off every few seconds when there is any kind of motion on the screen.

I get a stable picture if I drop the resolution to 2560x1440; or if I drop the refresh rate to 30hz.

The same hardware works faultlessly at full resolution/refresh rate with ...

Score: 2
Jord Maogan avatar
Infinite boot after Kernel Update or with liveDVD
es flag

I just receive my new Tp01-2000nf Intel® Core™ i5-11400 Realtek RTL8821CE-M Wi-Fi® 802.11a/b/g/n/ac (1x1) et Bluetooth® 4.2 Intel® UHD 730 I installed in dual boot with Ubuntu LTS 20.04.1 with kernel 5.4.0-42.

When on grub I choose kernel 5.4.0-42, everything remains fine.

I burned Ubuntu LTS 20.04.3 and 21.04 which take an infinite time to boot. Any update drive to the same situation.

log availa ...

Score: 0
Sri Vishnu avatar
Cannot use cd to change directory to downloads in windows 10.Kindly Help
cn flag

I have installed Ubuntu on my windows system but I cannot seem to change the directory to downloads folder even though when mkdir is used to create a folder in the C: Drive when I do so I get an error sayin g that the file is not there. Kindly Help

Score: 1
zzz.rivera24 avatar
Is it always necessary to do "sudo apt update" and "sudo apt upgrade" when a fresh instance is created?
ru flag

I am a newbie in linux administration. I have always performed "sudo apt update" followed by "sudo apt upgrade -y" after creating a fresh Ubuntu instance (mostly I am using AWS EC2 instances). However, I cannot recall, for the life of me, if it is really necessary or part of what we call "best practice" when administering linux servers. Please let me know if it's best practice and whether I should conti ...

Score: 0
Systemd-resolved not querying local server (dnsmasq) when offline
us flag

I have configured dnsmasq to handle some local domains, with config like this:

address=/local/127.0.0.1
address=/devel/127.0.0.1

/etc/systemd/resolved.conf was changed to:

[Resolve]
DNS=127.0.1.1 # dnsmasq server local IP
Domains=devel local

So, everything works pretty much well, resolving works nice:

$ nslookup foo.devel
Server:         127.0.0.53
Address:        127.0.0.53#53

Non-authoritative answ ...
Score: 0
hariraj avatar
How to filter data through awk or grep to get the time only?
cn flag
curl -H Metadata:true --noproxy "*" "http://169.254.169.254/metadata/instance/compute/tagsList? 
api-version=2019-06-04"| 

Through the above command I'm getting out put like below

root@puppetagent-ubuntu1:/home/azureuser# grep -i "shutdown_time" test.txt  |awk '/value/{print}' |jq

[ { "name": "Application_Name", "value": "POC-Exception" }, { "name": "Cost_Center", "value": "1000501541" }, { "name": "St ...
Score: 0
redpy avatar
iscsi configuration: rc scripts missing
in flag

Am configuring iscsi on ubutu 20_04.

start/stop run-levels for open-iscsi:-

root@c3-dl385g10-16:/etc/netplan# cat /etc/init.d/open-iscsi
#! /bin/sh
### BEGIN INIT INFO
# Provides:          open-iscsi iscsi
# Required-Start:    $network $local_fs iscsid
# Required-Stop:     $network $local_fs iscsid sendsigs
# Default-Start:     S
# Default-Stop:      0 1 6
# Short-Description: Login to default iSCSI t ...
Score: 0
HeSaidWatch avatar
Where is the Nautilus icon stored?
ma flag

I am using Ubuntu 20.4.2, and I need to know where Nautilus (aka "Files") stores its blue filing cabinet icon.

Score: 1
friendlyman avatar
fprintd error, no device detected
hu flag

I recently got a Dell Insprion 7000 2-in-1 laptop and I installed linux on it. I am trying to get the fingerprint reader to work. I checked and the reader is supported. USB ID 27c6:639c. But despite when I try to run fprintd-enroll, it just gives me an error.

Score: 0
hongmeix avatar
Having trouble when install .NET on Ubuntu
mx flag

I'm trying to install .NET on Ubuntu 18.04, when I execute sudo dpkg -i packages-microsoft-prod.deb command after wget the packages-microsoft-prod.deb, an error happens:

sudo dpkg -i packages-microsoft-prod.deb dpkg: warning: failed to open configuration file '/usr2/hongmeix/.dpkg.cfg' for reading: Permission denied dpkg: error: cannot access archive 'packages-microsoft-prod.deb': Permission deni ...

Score: 0
Saroj Shrestha avatar
PHP cURL error 60: SSL certificate problem: unable to get local issuer certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html)
cn flag

I am getting curl error as

cURL error 60: SSL certificate problem: unable to get local issuer certificate (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://.........

I am testing it on ubuntu 20.04 LAMP stack.

I have downloaded cert and placed it at:

/etc/ssl/certs/cacert.pem

and updated php.ini located at etc/php/7.4/apache2/php.ini and etc/php/7.4/cli/php.ini

curl.cainfo ="/etc/ss ...
Score: 1
Sogawa-sps avatar
Console doesn't open automatically
cn flag

After Ubuntu installation I enabled system boot in a console mode using the following command:

systemctl set-default multi-user.target

It have always worked fine but yesterday console stopped to appear after reboot on its own so now I have to press CTRL+ALT+F1 each time. I didn't do any changes it simply stopped to work all of sudden.

Any ideas what could happen? How can I make console to start automatic ...

Score: 1
edwardliang2019 avatar
Why can't I run programs after closing SSH connection using setsid, nohup or disown?
no flag

I am attempting to run a program 'a.o' on a remote server. To keep it running after closing SSH connection, I tried the following:

setsid ./a.o
nohup ./a.o
./a.o &
disown -h %1

None of these options seem to work, and I cannot figure out why. Any ideas on how to fix this problem?

P.S. I am using a tunnel connection to connect to the server via a jump machine. Also, this is a program that inv ...

Score: 1
xproot avatar
My system is turning off by itself, I want to find any possible logs
ng flag

My Laptop (running Ubuntu 20.04.3 with Gnome DE) is turning off by itself, like, I'm playing a game then the screen gets black and then there's text basically indicating its shutting down (I don't have silent nor splash in my grub settings), I have heard my hard drive clicking so I'm scared those two are correlated, I've ran SMART tests but they say everything is fine. So I want to find the logs of when ...

Score: 0
Mark avatar
Should I install Webmin before LAMP
us flag

As a total beginner, should I installed Webmin THEN LAMP or LAMP and THEN Webmin please?

History:- *(I installed XAMPP a while ago - it worked though it never installed an ICON in the Applications. I decided to install Webmin as many folks suggested this as a good way to control Apache2 and MySQL etc. Installation went well but under "Server" in Webmin, there was no sign of Apache2 or MySQL server.

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