Re: Failure to shutdown/reboot with intel_iommu=on

[Joerg Roedel]

On Mon, May 11, 2020 at 09:43:11AM -0400, Lenny Szubowicz wrote:
> I suspect that you have TPM 2.x functionality enabled in the BIOS/firmware.
> 
> Unless you are actually using the TPM, try setting it to TPM 1.2 mode.
> I've seen an incompatiblity on other Lenovo laptops between using the
> IOMMU, TPM 2.x implementation in firmware, and shutdown/suspend.

Interesting, has this been debugged further into the TPM code?


	Joerg