Latest Ubuntu related questions

Score: 0
Sarvesh M.D avatar
Realtek rtl8188fu Wifi adapters are too slow
in flag

I have an rtl8188fu wifi adapter and I have installed driver for it from https://github.com/kelebek333/rtl8188fu . My problem is that the network speed is too slow. I have tried the wifi adapter on another Windows computer and it was fast. But when I use it on my Ubuntu 20.04 LTS Desktop, it is very slow. It hardly reaches 3 Kilobits per second. With this I came to know that the problem was not wi ...

Score: 0
Bob Ross avatar
KDE Plasma Login-Loop
cn flag

When trying to login in Kernel Version 5.4.0.77-generic, I enter the correct password and get sent back to the login screen after a short blackscreen.

When booting into another kernel like 5.8, 5.11 or 5.13 I don't have this issue, yet I need 5.4 for my software. What could be causing this issue?

KDE Plasma Ubuntu 20.04 Kernel Version 5.4.0.77-generic

Score: 0
Gordack avatar
Resolution problem in headless ubuntu 20.04
cn flag

I'm having a problem while remote connecting to my Ubuntu 20.04 desktop. When HDMI cable is not connected resolution is so low, so I've tried few solutions including nomachine, anydesk or teamviewer. None of them solved resolution problem.

I've tried xserver-xorg-video-dummy package but it didn't use amdgpu drivers. I've a AMD Radeon graphics card and I want to use the 3d acceleration. I know the ...

Score: 0
Sriram Rayadurg avatar
Fail2ban - IP banned is able to connect
cn flag

I am using Ubuntu Server 20.04.

I installed fail2ban and it is correctly banning the IP but still its able to connect. Giving below the fail2ban.log snippet.

2021-07-19 09:52:14,543 fail2ban.filter         [1254638]: INFO    [postfix-sasl] Found 218.4.239.146 - 2021-07-19 09:52:14
2021-07-19 09:52:21,285 fail2ban.filter         [1254638]: INFO    [postfix-sasl] Found 218.4.239.146 - 2021-07-19 09:52: ...
Score: 0
Blip avatar
Ubuntu malformed line problem
in flag

When I type sudo apt update, I get this error:

Malformed line 2 in source list /etc/apt/sources.list.d/xenial.list (type)
E: The list of sources could not be read.

I used /etc/apt/sources.list.d/xenial.list and it shows

deb http://archive.ubuntu.com/ubuntu xenial main restricted universe multiverse

I use Ubuntu 18.04. How can I fix this?

Score: 0
Marco avatar
Update Or Remove Alacritty
in flag

I built Alacritty by following the instructions from Alacritty Github and I don't know how to update it.

So, I thought if I install Alacritty with this code ↧, It will be easy to update it.

sudo add-apt-repository ppa:aslatter/ppa
sudo apt install alacritty

Can anyone help me to remove it, or guide me on how to update it?

Thank you

Score: 0
Unable to install ubuntu black screen appears
cn flag

Actually I have assembled my first pc ,I'm just trying my hand at computers. I created the usb bootable drive while installing a black screen with a underscore blinking appears

Score: 2
krisograbek avatar
Ubuntu 20.04 No Wifi Adapter Found. Lenovo Ideapad Realtek
in flag

I bought a new Lenovo Ideapad 5 without any OS. I installed Ubuntu 20.04 on it. However, in Settings -> Wi-Fi I see "No Wi-Fi Adapter Found". I already spent hours trying to solve this problem. I don't know, what I'm missing.

Here, I paste the output from some common commands I found.

sudo lshw -C network
  *-network UNCLAIMED       
       description: Network controller
       product: Realtek Se ...
Score: 2
xerostomus avatar
How do I zoom 200% in feh without having to use fullscreen?
sy flag

This works:

feh --zoom 200 --full-screen picturius.png

I need the same without full-screen:

feh --zoom 200 picturius.png # this does not work

Have you an idea where I am wrong?

Score: 0
TK noob avatar
How do I use Pi4's GPIO pins with Ubuntu 20.04
in flag

Ros2 works with Ubuntu 20.04 specifically. It should be easy to use the SBC GPIO pins, RaspberryPi4 runnung Ubuntu 64bit in my case.

There's wiringpi > it installs but when "gpio -v" is run, it errors? out withType Unknown17 .... Raspberry Pi 4 model B Rev1.1... This raspberry Pi supports user-level GPIO access

Ubuntu admits GPIO does not work with 20.04 but is fixed in 20.1 !!ros only works w ...

Score: 0
Unable to wake computer up after suspend
tr flag

I'm having an HP ProDesk 400 G6 MT with Ubuntu 20.04.2 which cannot wake up after suspend using either systemctl suspend or Suspend button on the top right corner. Letting the computer automatically suspend is fine. I have tried all those fixes but none works. How can I make it wake up properly after suspension? Thanks.

Score: 0
Dragon Hunter avatar
My Ubuntu Gnome Terminal dosen't work properly
cn flag

When I try to update it shows this error. I use Ubuntu 20.04

404 Not Found [IP: 91.189.95.85 80] Err:18 http://ppa.launchpad.net/snwh/pulp/ubuntu focal Release 404 Not Found [IP: 91.189.95.85 80] Traceback (most recent call last): File "/usr/lib/cnf-update-db", line 8, in from CommandNotFound.db.creator import DbCreator File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 11, in ...

Score: 4
Claire Duong avatar
Set parameters for Ubuntu's alias
cn flag

I have an example command as follows:

g++ main.cpp -o main -lopencv_core -lopencv_highgui -lopencv_imgproc -lopencv_imgcodecs -I/usr/local/include/opencv4

Running the entire above command will create file main based on the second argument main after the parameter -o. I have reset it in file .zshrc as follows:

alias ocv='f(){ g++ "$@" -o built_$@ -lopencv_core -lopencv_highgui -lopencv_imgproc -lopencv_im ...
Score: 2
print preview is truncated in Ubuntu
br flag

Printing is defective in Firefox as of recently on my Ubuntu 20.04 with Firefox 90. HPLIP is installed.

I need to print .HTML files previously saved by Firefox. In both print > save to PDF and print > LaserJet P2015 the right side of the print preview page is truncated. It is more truncated in the case of a physical printer; less truncated when printing to PDF but still truncated. The preview i ...

Score: 1
qwertaii avatar
How to change the default GPU?
cn flag

Disclaimer: pretty new to Linux

Relevant system specs:

Motherboard: MSI B450 Tomahawk Max
CPU: AMD Ryzen 9 3950X (no iGPU)
PCIe slot 0: Nvidia 2070 Super (1x monitor connected)
PCIe slot 1: AMD RX 550X (2x monitor connected)
OS: Ubuntu 20.04.2 LTS

I'm following a noob's guide on how to set up a Windows virtual machine with a passthrough GPU for playing games, using xubuntu as a hypervisor instead of ...

Score: 0
nvk1111 avatar
Installed Ubuntu on Alienware but no sound
gb flag

Installed Ubuntu 21.04 on Alienware Area-51 R2 desktop. There was no sound. I searched all over internet for solution. Tried pavucontrol and alsamixer, but didn't work. After adding "options snd-hda-intel model=auto" to alsa-base.conf file, now I am getting sound coming out of speaker, but it is barely audible! I have turned volume all the way up but all I am getting is volume output at whisper level. I ...

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