An error with the Linux kernel’s ACPI subsystem is usually indicated by the “Ubuntu ACPI Error: AE_ALREADY_EXISTS.” At Bobcares, with our Server Management Service, we can handle your Ubuntu ACPI issues.

Fixing “Ubuntu ACPI Error: AE_ALREADY_EXISTS”

The error indicates that there is an attempt to create an ACPI object or resource that is already present. Numerous things, including as kernel problems, ACPI BIOS errors, and hardware compatibility difficulties, may cause it. The troubleshooting steps include:

1. Ensure that the UEFI/BIOS firmware on the machine is current. Fixes for problems linked to ACPI are occasionally included in BIOS upgrades.

2. Make sure all of the drivers are up to date and that we are running the most recent version of the Linux kernel. Updates to the kernel frequently include bug fixes and enhancements.

3. Certain hardware may not have good Linux support or may need certain kernel options to function correctly. Check for Linux kernel compatibility on the hardware and any required settings.

4. Try starting the computer with various kernel options relating to ACPI. With the GRUB bootloader, we can add options to the kernel command line.

5. Look for any known problem reports connected to ACPI for the hardware, kernel version, and Linux distribution that we are using. There may occasionally be fixes or workarounds for certain problems.

6. On certain systems, we can modify BIOS/UEFI settings pertaining to ACPI. We may wish to experiment with these settings to see if there is any impact when we make changes.

7. Patching the kernel to fix the problem can be an option if we have prior expertise in developing Linux kernels. This is an advanced phase, though, so proceed with caution.

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Conclusion

In conclusion, these 7 troubleshooting steps easily help us to fix the “Ubuntu ACPI Error: AE_ALREADY_EXISTS.”