Articles with the linux tag

Python Partial For Classes

Partial sets up frozen arguments to functions. For example:

def power(x, y):
    return x ** y
# Partial implementation
from functools import partial
square = partial(power, y=2)
square(3) # Returns 9

Using partial in classes in the same way, will require passing the class instance as one of the parameters …

Huion 420 driver setup

I bought the Huion 420 because I wanted to experiment with graphics tablet and drawing on linux. I chose this primarily because of its cost. Out of the box, the device worked on my archlinux setup, however it behaved more like a mouse, with pressure sensitivity not detected. I did …

Fixing Small Fonts on My Laptop

I have been having this problem with my laptop where the fonts seem too small. To fix this, I first had to check out my laptop's screen configurations:


Part of the output of this command is shown below. As can be seen it shows that my laptop screen is …

Bluetooth Speakers Problems

Connecting to Device

To connect to the bluetooth speakers, I use the bluetoothctl commandline options. The following are commands I run for this to work:

sudo systemctl start bluetooth.service
# Within the bluetoothctl environment
power on
agent on
scan on
pair A4:A7:B5:22:E6:F5
connect …

Freeing up Space in my Linux Machine

I have a 256GB SSD on my laptop. This is rather constrained and I occasionally end up with less than 10GB drive space. When this happens, I have to figure out what is taking up all my space and fix this. This prompts some form of search and cleaning up …

Document Scaning in Arch Linux

Using a scanner in arch is pretty perplexing at first, especially if you want to try it from the command line. Here are my steps to end up with something that works.

First install the sane package. Sane provides a command line tool for using scanners.

sudo pacman -S sane …

When Memory is not enough

A computer or server suddenly freezes or crashes. You don't know what the problem is and you really need to complete this task. One of the options is to consider memory. You might have just run out. To confirm this, you can monitor memory usage using the htop command while …


SSH provides a secure means of remote login from one computer to another computer. When setting up linux servers, the OS usually provides ssh by default. To login:

ssh user@ipaddress

This prompts for a password, after which you have access to a remote terminal. Sometimes, no password is requested …

ArchLinux Signature Error

When updating archlinux using:

sudo pacman -Syu

I sometimes get an error message that looks something like this:

error: zstd: signature from "Andrzej Giniewicz (giniu) <>" is marginal trust
:: File /var/cache/pacman/pkg/zstd-1.3.2-1-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature …

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