Contemporary Lenovo and Dell laptops include a newer TPM chip (iTPM) which is not well supported by Linux.
The fundamental problem is that iTPM doesn't set the TPM_STS_DATA_EXPECT status bit when sending it a burst of data and the current kernel module considers that a failure. And there is a secondary problem that the Thinkpads have the chip in an ACPI configuration that, while standard, eludes the kernel's autoprobing.
iTPM-based laptops are supported
Enterprise customers already relying on the TPM chip cannot move to newer laptops with the new iTPM chip because it is not supported by Linux.
If the patches make the kernel that Lucid ships with, there's nothing Ubuntu needs to do specifically. If they do not, Ubuntu should consider carrying these patches in its kernel.
If the feature is working, an iTPM-based laptop (e.g. Lenovo T400, X301) running the Trousers software will successfully detect the TPM chip (i.e. tpm_version will return something)
The second patch is still to be rewritten, submitted and accepted by the Kernel subsystem maintainer
BoF agenda and discussion
Use this section to take notes during the BoF; if you keep it in the approved spec, use it for summarising what was discussed and note any options that were rejected.