Hi there, I have an Acer notebook "Siwft 3", AMD Ryzen platform that does not enable the TPM2 chip with Linux. Precise model name is SF315-41-R4W1 with current UEFI bios, current kernel I use is 4.19.4. dmesg | grep -i tpm says this: efi: ACPI 2.0=0x8f7fe014 ESRT=0x8c4be298 SMBIOS=0x8c4b9000 SMBIOS 3.0=0x8c4b7000 MEMATTR=0x89355018 TPMEventLog=0x826b6018 [ 0.005953] ACPI: TPM2 0x000000008F7C1000 000034 (v04 ACRSYS ACRPRDCT 00000002 1025 00040000) [ 3.856038] tpm_crb MSFT0101:00: can't request region for resource [mem 0x8f775000-0x8f778fff] [ 3.856070] tpm_crb: probe of MSFT0101:00 failed with error -16 [ 4.218481] ima: No TPM chip found, activating TPM-bypass! TPM is of course enabled in bios. I have already tried to clear the TPM and reboot with no success. If you need ACPI dump and IOMEM data to help debugging, I have uploaded them to a file hoster: acpidump.log md5 498d199ec422b7d2a450ee13ecfaf6a5 https://www.file-upload.net/download-13412947/acpidump.log.html iomem.log md5 2afe196e407c3b9bb33fdc54871d8475 https://www.file-upload.net/download-13412948/iomem.log.html I´m glad for any advise how to get thad damn thing working. My main purpose of TPMs is to use the integrated hardware RNG. thanks Malte
