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How To Fix ACPI Errors on Ubuntu Boot

Ubuntu 16

ACPI (Advanced Configuration and Power Interface) errors are common issues that users may encounter when booting up Ubuntu. These errors are related to the ACPI specifications not being fully implemented or being implemented incorrectly in the BIOS/UEFI of your machine. While these errors are typically not severe and can be safely ignored, they can be annoying for some users. In this article, we will guide you through the process of fixing these ACPI errors.

Quick Answer

To fix ACPI errors on Ubuntu boot, you can try updating your BIOS/UEFI to the latest version, changing the BIOS graphics settings from Dynamic to Discrete, or disabling ACPI as a last resort. However, please note that disabling ACPI can have negative effects on power consumption and battery life. If these steps don’t resolve the issue, it’s recommended to seek help from the Ubuntu community or a professional technician.

Understanding ACPI Errors

ACPI errors occur when Linux tries to read specific ACPI parameters that either don’t exist or are incorrect. This can happen due to various reasons, such as outdated BIOS/UEFI, incorrect BIOS settings, or hardware issues.

Updating BIOS/UEFI

The first step to mitigate ACPI errors is to update your BIOS/UEFI to the latest version. This can be done by visiting the official website of your machine’s manufacturer and following their instructions.

Please note that updating the BIOS/UEFI is a critical task and should be performed with caution. A wrong step can cause your system to become unbootable.

Changing BIOS Settings

In some cases, switching the BIOS graphics from Dynamic to Discrete has been reported to fix ACPI errors. The reason behind this fix is unclear, but it’s worth trying if updating the BIOS/UEFI doesn’t solve the problem.

To change the BIOS settings, you need to restart your machine and enter the BIOS setup. The key to enter the BIOS setup varies by manufacturer, but it’s typically one of the function keys (F1, F2, F12, etc.), the ESC key, or the DEL key.

Once you’re in the BIOS setup, look for the graphics settings (usually under the Advanced tab), and switch the graphics from Dynamic to Discrete. Save the changes and exit the BIOS setup.

Disabling ACPI

If the above steps don’t work, you can try disabling ACPI. However, this should be your last resort as disabling ACPI can lead to increased power consumption and reduced battery life.

To disable ACPI, you need to edit the GRUB bootloader. Open the terminal and type the following command:

sudo nano /etc/default/grub

This command opens the GRUB configuration file in the nano text editor. Look for the line that starts with GRUB_CMDLINE_LINUX_DEFAULT and add acpi=off at the end of the line, like this:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi=off"

Press CTRL+X to exit the editor, then press Y to save the changes and press ENTER to confirm the file name.

After editing the GRUB configuration file, you need to update GRUB with the following command:

sudo update-grub

Reboot your machine for the changes to take effect.

Please note that disabling ACPI is a drastic measure and should only be used if all else fails. It’s also worth mentioning that ACPI errors are typically harmless and can be safely ignored if they don’t affect your system’s performance.

Conclusion

Fixing ACPI errors on Ubuntu boot can be a daunting task, especially for novice users. However, with patience and a bit of technical know-how, you can mitigate these errors and enjoy a smoother booting experience. If the errors persist, consider seeking help from the Ubuntu community or a professional technician.

Remember to always back up your data before making any major changes to your system. Happy troubleshooting!

What are ACPI errors?

ACPI errors occur when Linux tries to read specific ACPI parameters that either don’t exist or are incorrect. These errors are related to the ACPI specifications not being fully implemented or being implemented incorrectly in the BIOS/UEFI of your machine.

Can ACPI errors be safely ignored?

Yes, ACPI errors are typically not severe and can be safely ignored if they don’t affect your system’s performance. However, they can be annoying for some users.

How can I update my BIOS/UEFI?

To update your BIOS/UEFI, you need to visit the official website of your machine’s manufacturer and follow their instructions. Be cautious during the update process as a wrong step can cause your system to become unbootable.

What should I do if updating the BIOS/UEFI doesn’t fix the ACPI errors?

If updating the BIOS/UEFI doesn’t solve the ACPI errors, you can try changing the BIOS graphics settings from Dynamic to Discrete. This fix has been reported to work in some cases.

How do I disable ACPI?

Disabling ACPI should be your last resort as it can lead to increased power consumption and reduced battery life. To disable ACPI, you need to edit the GRUB bootloader configuration file. Open the terminal and type sudo nano /etc/default/grub to open the file. Look for the line that starts with GRUB_CMDLINE_LINUX_DEFAULT and add acpi=off at the end of the line. Save the changes, update GRUB with sudo update-grub, and reboot your machine for the changes to take effect.

Are ACPI errors harmful to my system?

ACPI errors are typically harmless and can be safely ignored if they don’t affect your system’s performance. However, it’s always a good idea to keep your system up-to-date and address any errors or issues that arise.

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