Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend
My Thinkpad T460s was also affected (failing to resume from a suspend if
TPM2 is enabled), however upgrading from 1.49 --> N1CET82W (1.50 )
10/15/2020 seems to have solved the issue. There are references to TPM
sleep/wake issues in the ChangeLog, but only in previous versions:
https://download.lenovo.com/pccbbs/mobiles/n1cuj37w.txt
# uname -r
5.10.0-4-amd64
To actually use the TPM2.0 I still have to set intel_iommu=off, see:
*
https://lore.kernel.org/lkml/26b328dc-2161-fdaa-f533-bf0027c13efc@redhat.com/
* https://bugzilla.kernel.org/show_bug.cgi?id=108251
...but I think that's a separate issue.
My Thinkpad X201s also shows similar symptoms, since Linux 5
suspend/resume only works the first time, the second time the firmware
crashes. In that case blacklisting the tpm module there seems to have
worked around it. It's not going to get any more BIOS updates in this
stage of it's life.
Cheers,
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