modular to built in, so the old workaround will not work without a kernel rebuild.bullseye:~# grep TPM /boot/config-5.10.0-25-amd64 CONFIG_TCG_TPM=m CONFIG_HW_RANDOM_TPM=y CONFIG_TCG_VTPM_PROXY=m bookworm:~# grep TPM /boot/config-6.1.0-11-amd64 CONFIG_TCG_TPM=y CONFIG_TCG_VTPM_PROXY=m
I tried another workaround that appears to work.Disable the TPM in the BIOS. It is in the BIOS setup under the "Security" tab: "Security Chip". I set that to disabled and "systemctl suspend" now looks like it works, all the keyboard lights go out. Pressing power resumes normally.