Home on blog

Easy Guide to Secure Boot

Sun, 07 Jun 2026 22:34:31 +0530

Why?

Over the years I have found that doing dual booting with secureboot is a pain.

There are many ways to do it but I have found easier way to do it with signing the firmware with own keys.

So, We are gonna use tool called sbctl which does that for us.

Remember, I am no expert on this and I am writing from my experience.

Let’s start

Install the required package

Install sbctl as per your distro.

Check the status

$ sbctl status
Installed:	✘ Sbctl is not installed
Setup Mode:	✘ Enabled
Secure Boot:	✘ Disabled

You should see that sbctl is not installed and secure boot is disabled.

Create the keys

$ sbctl create-keys

Enroll the keys

sbctl enroll-keys --microsoft

Sign the kernel and modules

sbctl sign-all

This command signs almost everything needed eg: kernel, bootloader, etc.

How to fix niri window manager screen capture

Thu, 22 Jan 2026 00:00:00 +0000

What is the issue?

The main issue here is the portal you do not have the correct portals.
Niri is not starting correctly.
Portals are overidden by other portals or not starting at all .

Let’s address them one by one

xdg-desktop-portal
xdg-desktop-portal-gnome
xdg-desktop-portal-gtk

find these packages in your corresponding distro and install them.

2. to fix this you just have to run this on startup(tty)

# systemd
niri-session
# others
dbus-run-session niri --session

3. To address this issue,

we are just going to create a config file to specifically tell these backend are going to be used for these tasks.

~/.config/xdg-desktop-portal

How to increase a video framerate

Sat, 26 Jul 2025 00:00:00 +0000

We are going to use frame interpolation method to increase a video framerate using ffmpeg,

With NVIDIA GPU Card

ffmpeg -hwaccel cuda -i input.mp4 -c:a copy -c:v libx264 -vf "minterpolate='mi_mode=mci:mc_mode=aobmc:vsbmc=1'" -c:v h264_nvenc -preset slow -r 60 -vb 20M output.mp4

Without NVIDIA Card

ffmpeg -i input.mp4 -c:a copy -c:v libx264 -vf "minterpolate=mi_mode=mci:mc_mode=aobmc:vsbmc=1" -preset slow -r 60 -b:v 20M output.mp4

Explanation:

input.mp4 is your input video that you want to convert -preset the slower it is the better -r 60 is the framerate that you want to convert into output.mp4 is the output file

My experience with a Nothing phone

Mon, 21 Jul 2025 00:00:00 +0000

My Experience With the Nothing Phone (2a Plus)

So I bought Nothing Phone (2a Plus) 6 months ago and it was my first AMOLED mobile phone, everything looked perfect, the stock Android experience the glyph interface and the dot matrix design, really attracted me.

Little did I know the phone had a major defect with it’s display being not able to display gray color perfectly and showing red/green/purplish tint instead.