Linux Kernel has temporarily resolved the system stuttering issue caused by the fTPM
If you use an AMD processor, you should promptly update the chipset drivers pushed by AMD, which typically include updates to the BIOS firmware and the fTPM firmware.
The AMD fTPM issue causing system stuttering appeared a long time ago, but AMD has released chipset drivers to fix this problem. The issue is that many users have not updated their chipset drivers, which is why they are still experiencing stuttering.
For example, if you are using a Linux system, you may encounter stuttering issues. If you are willing, you can also disable the fTPM to resolve the issue, but the best solution is to upgrade the fTPM firmware.
In order to avoid impacting too many users, the Linux Kernel team had to roll back some of the code to solve the stuttering issues encountered by devices that have not updated their fTPM firmware.
According to Phoronix, last Sunday, the Linux Kernel released a temporary solution, pushing the relevant changes from Linux Kernel 6.3-rc2 to Linux 6.1.19 and Linux 6.2.6. The main issue that this downward porting solves is stuttering.
Not all users will encounter stuttering issues. According to the Linux Kernel team, stuttering only occurs when the AMD fTPM hardware random number generator is turned on, and not all kernels are affected. For example, Linux Kernel 5.19 used in Ubuntu 22.04 LTS does not have this issue.
The current Linux Kernel maintenance team has only temporarily resolved this issue. If users do not update their fTPM firmware, they will still be affected in the future.
To update the fTPM firmware, please go to the AMD website to find the driver applicable to your CPU or motherboard model, or go to the motherboard or OEM manufacturer’s website to download the latest driver.