In 2024, a patch was proposed to the Linux kernel mailing list to downgrade the IBM0068 message from KERN_WARNING to KERN_DEBUG , effectively hiding it by default. As of kernel 6.8+, you may still see it, but future kernels (6.10+) may finally silence it natively.
The hardware ID ACPI\IBM0068 corresponds to the Lenovo/IBM ThinkPad Power Management Driver
IBM0068 is the PNP (Plug and Play) ID for the . It appears in the ACPI namespace of IBM/Lenovo ThinkPad laptops (T40/T60/X60 era through early X/T series) to manage the UltraBay – a swappable bay for optical drives, secondary batteries, hard drive caddies, or serial/parallel port adapters.
: For users on Linux, the full technical specification for the thinkpad_acpi driver (which handles this ACPI ID) is available in the Linux Kernel Documentation
Ensure your BIOS is up to date, as the ACPI tables that define this hardware ID are located there. Microsoft Learn direct download links for a specific ThinkPad model, such as the X201 or T480? Unknown device ACPI\IBM0068 - Microsoft Q&A
: Improved sleep, hibernation, and "wake-on" behaviors.
In 2024, a patch was proposed to the Linux kernel mailing list to downgrade the IBM0068 message from KERN_WARNING to KERN_DEBUG , effectively hiding it by default. As of kernel 6.8+, you may still see it, but future kernels (6.10+) may finally silence it natively.
The hardware ID ACPI\IBM0068 corresponds to the Lenovo/IBM ThinkPad Power Management Driver acpi ibm0068
IBM0068 is the PNP (Plug and Play) ID for the . It appears in the ACPI namespace of IBM/Lenovo ThinkPad laptops (T40/T60/X60 era through early X/T series) to manage the UltraBay – a swappable bay for optical drives, secondary batteries, hard drive caddies, or serial/parallel port adapters. In 2024, a patch was proposed to the
: For users on Linux, the full technical specification for the thinkpad_acpi driver (which handles this ACPI ID) is available in the Linux Kernel Documentation It appears in the ACPI namespace of IBM/Lenovo
Ensure your BIOS is up to date, as the ACPI tables that define this hardware ID are located there. Microsoft Learn direct download links for a specific ThinkPad model, such as the X201 or T480? Unknown device ACPI\IBM0068 - Microsoft Q&A
: Improved sleep, hibernation, and "wake-on" behaviors.