Hi, HP Spectre laptop, model W2K28UA, circa 2016 4.20.0-0.rc5.git2.1.fc30.x86_64 [ 0.000000] DMI: HP HP Spectre Notebook/81A0, BIOS F.42 10/25/2018 [chris@flap ~]$ sudo lsmod | grep tpm [chris@flap ~]$ dmesg | grep -i tpm [ 0.000000] efi: SMBIOS=0x3a57a000 ESRT=0x3a57d718 ACPI 2.0=0x3affe014 PROP=0x229d0278 TPMEventLog=0x2100c018 [ 0.023050] ACPI: TPM2 0x000000003AFF9000 000034 (v03 HPQOEM INSYDE 00000000 HP 00040000) [ 2.066860] tpm_crb MSFT0101:00: can't request region for resource [mem 0x3af5b000-0x3af5b02f] [ 2.066916] tpm_crb: probe of MSFT0101:00 failed with error -16 [ 2.324683] ima: No TPM chip found, activating TPM-bypass! Previously filed a bug here: https://bugzilla.kernel.org/show_bug.cgi?id=185631 -- Chris Murphy