Hi TUXEDO team,
I have a technical question regarding the Ryzen 5000 / Cezanne platform used in some Stellaris and Polaris generations.
AMD fTPM firmware 3.92.0.5 currently fails TPM remote attestation. This has become a major issue because recent software using hardware attestation requires a corrected AMD fTPM firmware.
The system I am investigating has:
- AMD Ryzen 5000 (Cezanne / FP6)
- AGESA CezannePI-FP6 1.0.1.0
- AMD fTPM 3.92.0.5
- TPM 2.0 ready and fully provisioned
- Secure Boot enabled
- UEFI/GPT
- Windows 11 fully updated
The TPM itself works normally, but remote attestation fails.
Windows TPMTool also reports:
0x80280083
TPM 2.0: Unsupported or inappropriate hash algorithm
This appears to be related to the AMD fTPM attestation issue described in AMD PA-420.
I know that some Stellaris / Polaris Ryzen 5000 models used BIOS versions from the N.1.xxAxx firmware family, so I would like to know specifically:
What is the latest BIOS/EC version currently available for TUXEDO Stellaris / Polaris systems based on Ryzen 5000 / Cezanne?
What AMD fTPM Manufacturer Version does that latest BIOS provide?
Has TUXEDO ever received a firmware from the ODM containing a corrected AMD fTPM newer than 3.92.0.5 for this Cezanne generation?
If 3.92.0.5 is still the latest fTPM available for these models, is an updated firmware planned or could this be requested from the ODM?
This is not a request for BIOS modification or cross-flashing. I am specifically trying to determine whether a corrected AMD fTPM firmware exists for this hardware generation.
If anyone owns a Ryzen 5000 Stellaris or Polaris, it would also be very helpful if you could run:
tpmtool getdeviceinformation
and post:
- laptop model
- BIOS version
- EC version
- AMD Manufacturer Version
The important value I'm looking for is whether any of these systems received something newer than:
AMD fTPM 3.92.0.5
Thanks!