Latest Ubuntu related questions

Score: 0
Wireless Intel 7260 disabled on Ubuntu 20.04
ni flag
vag

I have just installed Ubuntu 20.04 on my DELL 7240 and my WiFi adapter (Intel 7260) seems to be disabled.

I have tried different ways to enable it:

Edited the following file: sudo vi /etc/modprobe.d/iwlwifi.conf adding options iwlwifi 11n_disable=8, and then added also options iwlwifi 11n_disable=1. However, it didn't work after rebooting.

Continuing on reading from other posts, I have tried sudo ...

Score: 0
How does network setup internally work on Kubuntu / Systemd?
sa flag
JPT

My networking seems to be totally screwed up. This is why I want to understand how network setup on (K)Ubuntu is supposed to work. Which components are involved and how they are meant to work together.

I know this question and my problems create two totally different topics. Let's see how this discussion is going to be and then I clean up to make this thread as generic as possible or create two t ...

Score: 0
Ubuntu unable to load in Dual Boot after Windows update
hu flag

Using Dual Boot with Windows 10 and Ubuntu 20.04 here.

After a Windows update yesterday the Grub dual boot screen disappeared, which I could fix. Then I got stuck at this screen with this next issue, see also attached screenshot.

I guess the most relevant are the following notices:

BusyBox v1.30.1 (ubuntu 1:1.30.1-4ubuntu6.3) built-in shell (ash)

and

ALERT! UUID=505a2f88-6a67-42db-973e-f2019292557bUUID=50 ...

Score: 2
Amael H. avatar
Wrong logname at login in Ubuntu 21.10
td flag

I upgraded my Ubuntu 21.04 to 21.10 yesterday and am running into serious problems after rebooting.

Troubles with graphical drivers (solved)

This is solved, but maybe I broke something by solving this problem ? Ubuntu stuck during boot and the desktop was never showing. I restarted in rescue mode, updated grub to add "nomodeset" and did some reinstallations + reconfigurations :

apt install --reinstall  ...
Score: 0
Sean Murphy avatar
Apparmor problem running firefox snap (Ubuntu 21.10/Xorg)
bd flag

I've just updated packages and firefox has stopped working. It seems to be an apparmor problem with this appearing in syslog:

Nov 21 10:49:03 sean-Latitude-7400 systemd[3078]: Started snap.firefox.firefox.992008a0-81d5-4d00-8641-84bf45088f76.scope.
Nov 21 10:49:03 sean-Latitude-7400 kernel: [ 3443.991060] audit: type=1400 audit(1637488143.158:116): apparmor="DENIED" operation="open" profile="snap.firefox. ...
Score: 0
Linear Data Structure avatar
I keep Getting error: 'arr[$i] is not a valid identifier' on bash script
ph flag

I'm practicing Fibonacci series on bash script with arrays and for loop but I got this error

jrnl6T2.sh: line 10: `arr[$i]': not a valid identifier

Here is .sh file

#! /bin/bash

read -p "Enter term: " term

arr[0]=0
arr[1]=1
for (( i=2; i<$term; i++))
do

    arr[$i]= expr $((arr[$i-2]+arr[$i-1]))
    
done

for (( j=0; j<$term; j++ ))
do
    echo ${arr[$j]}
    
done

As I'm a beginner so no ...

Score: 0
canonical-Livepath error which I can not find it
cn flag

I received an error by following Canonical Livepatch has experienced an internal error. Please refer to https://wiki.ubuntu.com/Kernel/Livepatch#CommonIssues for further information. How can to solve it ?

Score: 0
Youran avatar
Explaination of files under /etc/NetworkManager?
ru flag

/etc/NetworkManager is an important directory where NetworkManager saves its configs. I want a complete list of what every file is for.

All files under this directory on my laptop is

$ tree
.
├── conf.d
├── dispatcher.d
│   ├── no-wait.d
│   ├── pre-down.d
│   └── pre-up.d
├── dnsmasq.d
├── dnsmasq-shared.d
├── NetworkManager.conf
└─┠...
Score: 1
Lucas Freitas avatar
Wifi stopped working
us flag

I'm new to linux, I've installed Lubuntu in an old laptop last thursday and I've been having quite a good time with the system. But last night while I was using it as normal the wifi suddenly stopped working and I couldn't manage get it back on. The wifi icon is there but it doesn't show any network available.

Here some common outputs:

    rfkill list
1: phy1: Wireless LAN
        Soft blocked: no
    ...
Score: 0
raspberrypi 7" DSI display stopped working after initial upgrade (Ubuntu 21.10 64bit)
fr flag

I installed the Ubuntu Desktop 21.10 64bit image (released 2021-10-14) on USB for my RaspberryPi 4Gb. The pi has an original 7" display connected via the display interface (dsi).

After adding dtoverlay=vc4-kms-dsi-7inch (and lcd_rotate=2 to invert the display) to config.txt on system-boot the initial boot and setup seemed to work like a charm.

Problems started after the automatic update that happens dur ...

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