Hardware⏱️ 4 min read📅 2026-06-11

How to Fix: Interpreting an ACPI error: No handler for Region

Understanding ACPI errors and potential solutions for Ubuntu 22.10 system.

Quick Answer: Check if the affected region is related to a specific device, such as the unused RX580 graphics card, and consider disabling it or updating BIOS.

📋 Table of Contents

  1. 🔍 Why This Happens
  2. 🛠️ Step-by-Step Verified Fixes
  3. ✨ Wrapping Up

ACPI (Advanced Configuration and Power Interface) is a technology that allows computers to communicate with each other and manage power consumption. However, when an ACPI error occurs, it can be frustrating for users. In this guide, we will help you understand what the 'No handler for Region' error means and provide steps to fix it.

The 'No handler for Region' error is a common issue that affects many Linux distributions, including Ubuntu. It occurs when the kernel cannot find a suitable handler for a specific region in the system's ACPI table. This can cause various system problems, such as freezes or crashes. In this guide, we will walk you through the steps to resolve this issue.

🔍 Why This Happens

  • The first main reason why the 'No handler for Region' error occurs is due to a mismatch between the kernel and BIOS settings. This can happen when the BIOS settings are not properly configured or when there is an incompatibility between the kernel and BIOS versions.
  • Another alternative cause of this error could be related to the system's hardware configuration, such as a faulty or incompatible device. In some cases, removing a specific device from the system may resolve the issue.

🛠️ Step-by-Step Verified Fixes

Updating the BIOS

  1. Step 1: Firstly, ensure that your BIOS is up-to-date by checking for any available updates in the Asus BIOS update utility.
  2. Step 2: Download and install the latest BIOS version from the official Asus website. Make sure to follow the proper installation procedures and reboot the system after the update.
  3. Step 3: After updating the BIOS, restart the system and check if the 'No handler for Region' error persists. If it does, proceed with the next step.

Disabling the unused device

  1. Step 1: Identify the specific device that is causing the issue by checking the kernel logs or using tools like `lspci` and `dmesg`. In this case, we are told to look at the RX580 card.
  2. Step 2: Disable the RX580 card by removing it from the system. You can do this by unplugging the power cable from the graphics card or by disabling it in the BIOS settings.
  3. Step 3: After disabling the RX580 card, restart the system and check if the 'No handler for Region' error persists. If it does not, proceed to the next step.

✨ Wrapping Up

In summary, to resolve the 'No handler for Region' ACPI error, you can try updating your BIOS or disabling a specific device that may be causing the issue. By following these steps, you should be able to identify and fix the problem, ensuring stable system performance.

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