the Lenovo Power Management Driver for Windows (32-bit or 64-bit, matching your OS). Run the downloaded .exe file.
Coordination of battery reporting, sleep modes, and thermal management. acpi ibm0068
⭐⭐⭐☆☆ (3/5 – Essential but poorly documented ) the Lenovo Power Management Driver for Windows (32-bit
What is the specific model of your ThinkPad (e.g., T480, X1 Carbon) and which version of Windows are you running? Device Man shows dead hardware: ACPI/IBM0068. What is it? acpi ibm0068
A: These are different ACPI Hardware IDs used by ThinkPad laptops from different eras. IBM0068 is for older models from the IBM era. LEN0068 and LEN0268 are for newer models after Lenovo took over and are all recognized by modern versions of thinkpad_acpi .