Friday, August 22, 2025

Discover Your Inner Car Driver with 'Driving Coach Man'

 n the vast landscape of YouTube, where channels vie for our attention with flashy editing and sensational content, a hidden gem often goes unnoticed. It’s a channel that doesn't rely on clickbait or dramatic stunts, but instead focuses on a simple, yet profoundly important skill: driving. That channel is "Driving Coach Man."

The creator, an experienced and genuinely passionate driving instructor, brings a refreshing and much-needed perspective to the world of automotive tutorials. Unlike other channels that focus on car reviews or racing, "Driving Coach Man" is dedicated to the art and science of safe, confident, and skilled driving.

From tackling parallel parking phobia to mastering complex intersections and navigating highways with ease, the channel's videos are a treasure trove of practical advice. The content is meticulously crafted, breaking down each maneuver into simple, digestible steps. The instructor's calm demeanor and clear explanations create a learning environment that is both encouraging and effective.

What sets "Driving Coach Man" apart is its authenticity. The videos aren’t just about passing a driving test; they’re about building a foundation of good habits that will serve you for a lifetime. The channel addresses common mistakes, shares valuable tips on car maintenance, and even offers insights into the psychology of driving.

Whether you're a complete beginner, a nervous new driver, or an experienced motorist looking to sharpen your skills, "Driving Coach Man" has something for you. It's a testament to the idea that some of the most valuable content on the internet is found in the quiet corners, where expertise and passion come together to make a real difference.

So, next time you're looking for a new channel to subscribe to, give "Driving Coach Man" a try. You might just discover the confidence you need to take on the open road.

Link: https://www.youtube.com/@user-drivingcoachman/ 

Wednesday, July 30, 2025

Unlock the Full Potential of Your Android Device: A Deep Dive into GSIs

 Ever wondered if you could experience the latest Android version on your device, even if the manufacturer hasn't released an official update? Or maybe you’re a developer wanting to test Android features without waiting for a device-specific build? Enter **GSIs (Generic System Images)** – a fascinating and increasingly accessible way to do just that.

What are Android GSIs?

Simply put, a GSI is a system image of Android that's designed to be compatible with a *wide range* of Android devices. Unlike traditional custom ROMs that are built specifically for a single device model, GSIs are meant to be adaptable. Google releases these images, and they form the foundation for Android development and testing.

Think of it like this:  A manufacturer's ROM is like a custom-tailored suit – perfect for one person. A GSI is more like a well-made, adaptable garment that can be adjusted to fit many different body types.

Why GSIs are Becoming More Popular

Historically, GSIs were primarily for developers and testers. However, advancements in the Android ecosystem, particularly Project Treble and Project Mainline, have made them more viable and user-friendly for enthusiasts.

Project Treble: This architectural change decoupled the vendor-specific code from the Android framework, making it easier to update the system image independently.  This is crucial for GSI compatibility.

Project Mainline: This allows for modular updates to core Android components, delivered directly from Google Play Services, further reducing the dependence on device-specific updates.

The Benefits of Using a GSI

* Latest Android Version: Experience Android features and improvements *before* your manufacturer rolls them out (or if they never do).  Currently, you can often find GSIs for Android 13, 14, and even beta/preview versions.

* Clean Slate:  GSIs typically offer a cleaner, less cluttered Android experience compared to heavily customized manufacturer ROMs. You often get a more stock Android feel.

* Developer Testing: Ideal for developers to test their apps against different Android versions and configurations without needing multiple physical devices.

* Potential Performance Boost: In some cases, a GSI can result in improved performance compared to a bloated manufacturer ROM (though this isn't guaranteed).

* Learning Opportunity:  The process of installing a GSI can be a fantastic learning experience for those interested in Android internals.


The Challenges & Considerations

* Compatibility is Key (and Tricky): Not all devices are compatible with all GSIs.  While Treble has helped, vendor-specific hardware and drivers still pose challenges.
* Vendor Blobs: GSIs require "vendor blobs" – proprietary drivers and libraries from your device's manufacturer. These are necessary for hardware functionality like camera, Wi-Fi, and cellular connectivity.  Finding the correct vendor blobs for your device is often the biggest hurdle.
* Potential for Instability:  While GSIs are generally stable, they’re not as thoroughly tested for consumer devices as manufacturer ROMs. You *might* encounter bugs or issues.
* Warranty Voiding:  As with any custom ROM or modification, installing a GSI will likely void your device's warranty.
* Data Loss: The installation process typically requires unlocking your bootloader, which *will* erase all data on your device.  Back up everything!
* Brick Risk: Incorrect installation can potentially "brick" your device (render it unusable).  Proceed with caution and follow instructions meticulously.

How to Get Started (Brief Overview - NOT a full tutorial!)


1. Check Compatibility:  Use online resources (see "Resources" below) to determine if your device is compatible with available GSIs.
2. Unlock Bootloader: This is the first and most crucial step.  The process varies depending on your device manufacturer and is often the most complex.
3. Find Vendor Blobs: Locate the correct vendor blobs for your device model.  This often involves searching online forums and communities.
4. Flash the GSI: Use a custom recovery (like TWRP) to flash the GSI image.
5. Reboot & Enjoy (Hopefully!)

Resources

* Android Open Source Project (AOSP) GSIs: [https://www.android.com/gsis/](https://www.android.com/gsis/) – The official source for GSIs.
* Maintainer Websites/Forums:  Several communities maintain lists of compatible devices and vendor blobs.  Search for "[Your Device Model] GSI" on sites like XDA Developers.
* XDA Developers Forums: [https://forum.xda-developers.com/](https://forum.xda-developers.com/) –  The go-to resource for all things Android customization.
* Device-Specific Communities: Look for dedicated forums or groups for your specific device model.


Saturday, July 19, 2025

The Elusive Debian Python 3.11 404 Not Found – And How to Fix It! 🐍🛠️

 Hey there, fellow Debian users! Ever run into a cryptic 404 Not Found error when trying to install a seemingly standard package, especially something like python3.11-venv? If you're on Debian Bookworm (Debian 12) and found yourself scratching your head trying to install python3.11-venv, python3.11-dev, or similar Python 3.11 related packages, you're not alone. I recently encountered this exact problem, and after some digging, found the fix. Let's break down what happened and how to solve it!

The Problem: A Package Version Mismatch in the Repository 🕵️‍♀️

My journey began when I tried to install python3.11-venv on my Debian Bookworm system. This is a common requirement for setting up isolated Python environments, so it should be straightforward. However, apt threw a very clear, yet perplexing, error:

Err:1 https://deb.debian.org/debian bookworm/main amd64 python3.11-venv amd64 3.11.2-6+deb12u5 404 Not Found [IP: 2a04:4e42:fe7::644 443] E: Failed to fetch https://deb.debian.org/debian/pool/main/p/python3.11/python3.11-venv_3.11.2-6%2bdeb12u5_amd64.deb 404 Not Found E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

The error message was spot on: apt was trying to download python3.11-venv version 3.11.2-6+deb12u5, but the file simply wasn't there on the server. A quick check revealed that the Debian repository had updated python3.11 and its related packages to 3.11.2-6+deb12u6.

So, why was my apt still looking for the older, non-existent version? Even running sudo apt update and sudo apt full-upgrade didn't solve it. The apt policy python3.11 command further confirmed the confusion:

python3.11:
  Installed: 3.11.2-6+deb12u5
  Candidate: 3.11.2-6+deb12u5
  Version table:
 *** 3.11.2-6+deb12u5 500
        500 http://deb.debian.org/debian bookworm/main amd64 Packages
        100 /var/lib/dpkg/status
      3.11.2-6+deb12u3 500
        500 http://deb.debian.org/debian-security bookworm-security/main amd64 Packages

Despite apt update appearing to run successfully, apt still believed 3.11.2-6+deb12u5 was the latest candidate version from the main Bookworm repository. This indicated a stale or corrupted local cache of package lists.

The Solution: A Deep Clean and Fresh Start for apt's Cache ✨

The core issue wasn't with my sources.list (which was perfectly fine), but with apt's internal representation of what was available in the repository. The standard apt clean wasn't enough to clear whatever was holding onto the old 3.11.2-6+deb12u5 information.

The fix involves a more aggressive approach to reset apt's package list cache:

  1. Delete apt's cached package lists: This command removes all downloaded package list files from /var/lib/apt/lists/. This effectively forces apt to rebuild its knowledge of available packages from scratch.

    sudo rm -rf /var/lib/apt/lists/*

    Why rm -rf? While apt clean removes downloaded .deb packages, it doesn't always fully clear the list files that contain information about what packages and versions are available. In rare cases like this, these list files can become inconsistent. Deleting them forces a complete refresh.

  2. Update apt's package lists: Now that the old lists are gone, run apt update to download fresh, accurate package lists from your configured repositories.

    sudo apt update

    This time, apt will re-fetch everything, including the correct, latest version of python3.11 (which is 3.11.2-6+deb12u6 for Bookworm). You should see output indicating it's downloading from deb.debian.org/debian bookworm/main.

Verification and Installation 🎉

After running these two commands, perform a quick check:

apt policy python3.11

You should now see 3.11.2-6+deb12u6 (or newer) as the Candidate version from the bookworm/main repository!

python3.11:
  Installed: 3.11.2-6+deb12u5 # Or whatever was installed
  Candidate: 3.11.2-6+deb12u6 # 🎉 This is what we want!
  Version table:
     3.11.2-6+deb12u6 500
        500 http://deb.debian.org/debian bookworm/main amd64 Packages
     *** 3.11.2-6+deb12u5 100
            100 /var/lib/dpkg/status
     ...

Finally, you can proceed to install your desired Python 3.11 packages:

sudo apt install python3.11 python3.11-venv python3.11-dev

This command will now successfully download and install python3.11-venv (and upgrade python3.11 and install python3.11-dev if needed) with the correct, available version from the repository.


Key Takeaway 💡

While sudo apt update and sudo apt upgrade usually solve most package issues, sometimes a deeper dive into apt's cache is necessary. If you're encountering 404 Not Found errors for packages that you know should be in your repository (especially after a point release update), remember the power of clearing apt's lists directory entirely to force a full refresh.

Hope this helps anyone else facing this quirky Debian Python package issue! Happy coding!


Sunday, June 29, 2025

Unable to install python3.11-venv on debian bookworm


I was getting some errors when I tried installing python3.11-venv on debian bookworm.
____________________________________________

Err:1 http://deb.debian.org/debian bookworm/main amd64 python3.11-venv amd64 3.11.2-6+deb12u5

404 Not Found [IP: 2a04:4e42:25::644 80]

E: Failed to fetch http://deb.debian.org/debian/pool/main/p/python3.11/python3.11-venv_3.11.2-6%2bdeb12u5_amd64.deb 404 Not Found [IP: 2a04:4e42:25::644 80]



E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

___________________________

How did I resolve the issue?

Edit your sources.list following this example on Debian wiki by adding this line:deb http://security.debian.org/debian-security bookworm-security main


Then run:sudo apt update && sudo apt dist-upgrade sudo apt install -y python3.11-venv

_________________

Resolving Gnome Calculator Issues on Debian 12 Bookworm

 If you're experiencing problems with the Gnome Calculator on Debian 12 Bookworm, you're not alone. Many users have encountered unexpected behavior or complete non-functionality with this essential utility. Fortunately, there's a simple fix that can resolve most issues.


The Quick Solution:

The magic command that can bring your Gnome Calculator back to life is:


$ dconf write /org/gnome/calculator/refresh-interval 0


References:
https://forums.debian.net/viewtopic.php?t=158572 


Saturday, May 3, 2025

Fixing Time Differences in Debian 12 with Dual Boot

If you're running Debian 12 and have it set up in a dual boot configuration with another operating system, you may have noticed that the system time is not consistent between the two. This can be a frustrating issue, but there's a simple command that can help resolve it.

Issue description

The problem often arises because different operating systems handle the system clock differently. Windows, for example, typically stores the time in the hardware clock as local time, while Linux distributions like Debian store it as UTC (Coordinated Universal Time). When you switch between the two, the system time can become out of sync.

The Fix

Fortunately, there's a command you can run in Debian 12 to fix this issue. Open a terminal and enter the following:

timedatectl set-local-rtc 1 --adjust-system-clock


This command tells Debian to treat the hardware clock as local time, and it will automatically adjust the system clock accordingly.

Here's a breakdown of what the command does:timedatectl is the command-line tool for managing the system clock and time zone.

  • set-local-rtc 1 tells Debian to treat the hardware clock as local time, rather than UTC.
  • --adjust-system-clock instructs Debian to update the system clock to match the hardware clock.

After running this command, your Debian 12 system should now be in sync with the time displayed in your other operating system when dual booting.

It's worth noting that this solution may not work in all cases, as the time discrepancy can sometimes be caused by other factors. If you're still experiencing issues, you may need to explore additional troubleshooting steps, such as checking your BIOS settings or adjusting the time zone configuration.

In any case, the timedatectl set-local-rtc 1 --adjust-system-clock command is a great starting point for resolving time differences when running Debian 12 in a dual boot setup.

Comment below if this fix worked for you!!

Resolving Display and WiFi Issues on Debian 12(DELL 5550, Display driver and Intel wireless firmware)


Recently I installed Debian 12 bookworm for a change, I encountered a couple of frustrating issues with my system's display driver and Intel wireless WiFi adapter. My DELL laptop had the latest Intel Arc Graphics, but the live Debian version installed kernel version 6.1, which did not have the drivers.

naveenr@latitude5550:~$ lspci -k | grep -EA3 'VGA'
00:02.0 VGA compatible controller: Intel Corporation Meteor Lake-P [Intel Arc Graphics] (rev 08)
Subsystem: Dell Meteor Lake-P [Intel Arc Graphics]
Kernel driver in use: i915
Kernel modules: i915, xe

Symptoms:

  • Very few display resolutions supported
  • Display brightness not working
  • Laptop special keys not working(like brightness increase and decrease )
  • Bluetooth not working
  • WiFi not working.
Fortunately, I was able to find a solution that got everything working properly.

Display Driver Problems

The recommended solution was to upgrade the Linux kernel and firmware packages to the versions available in the Debian "bookworm-backports" repository. To do this, I ran the following commands:

sudo apt -t bookworm-backports install linux-image-amd64

This updated my kernel to the latest version and all display issues got resolved(after debian reboot).

Resolving the WiFi Issue

In addition to the display problems, I was also having trouble connecting to my wireless network. My Intel WiFi adapter was not being recognized properly, and I couldn't get an internet connection. Again, I turned to the Debian forums and found that this was a common issue with Debian 12 and Intel wireless adapters. The solution was to install the firmware-iwlwifi package from the "bookworm-backports" repository, which I did using the command above.

sudo apt install firmware-iwlwifi/bookworm-backports



After running these commands, my display issues were resolved, and my wireless adapter started working correctly(after debian reboot). I was able to get back to using my Debian 12 system without any further problems.

Comment if you found this blog helpful.