[KBL] "enable_rc6" parameter deprecation brings back freezing

Submitted by Filip

Assigned to Anshuman Gupta @anshuma1

Link to original bug (#105962)

Description

Hello,

I noticed that the "enable_rc6" parameter is gone since kernel 4.16 and found out the reason is that there aren't any bugs related to it anymore.

Unfortunately this is not true. Lenovo's V310 and V510 laptops massively suffer from random freezing and so far the only fully working solution has been to set the mentioned parameter to 0. The "enable_dc=0" parameter alone is not enough as the freezing is back since kernel 4.16.

Is there any way of a passing an equivalent parameter or any way to turn off RC6? If not, on behalf of all owners of laptops mentioned above I kindly beg the developers to consider the non-negligible effect this deprecation will have on us.

More on these Lenovo laptops freezing: https://forums.lenovo.com/t5/Lenovo-C-E-K-M-N-and-V-Series/V510-15IKB-Laptop-Freeze/td-p/3577112

Best regards,
Filip