Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend

From	Jamie Lentin <jm@lentin.co.uk>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend
Date	2021-03-19 15:40 +0100
Message-ID	<BUos9-3ug-1@gated-at.bofh.it> (permalink)
References	<yVbzr-45l-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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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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Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend Anton Bobov <abobov@gmail.com> - 2019-10-25 19:30 +0200
  Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend Ben Hutchings <ben@decadent.org.uk> - 2019-10-26 16:50 +0200
    Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend Anton Bobov <abobov@gmail.com> - 2019-10-27 16:10 +0100
      Bug#943515: [External]  Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend Mark Pearson <mpearson@lenovo.com> - 2019-10-28 17:30 +0100
        Bug#943515: [External] Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend Anton Bobov <abobov@gmail.com> - 2019-10-28 19:30 +0100
  Processed: Re: Bug#943515: linux-image-5.2.0-3-amd64: Cannot  resume from suspend "Debian Bug Tracking System" <owner@bugs.debian.org> - 2019-10-26 16:50 +0200
  Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend Julien Rabier <taziden@flexiden.org> - 2019-12-19 12:10 +0100
  Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend on a t460s Marco Balmer <marco@balmer.name> - 2021-02-19 11:30 +0100
  Bug#943515: linux-image-5.2.0-3-amd64: Cannot resume from suspend Jamie Lentin <jm@lentin.co.uk> - 2021-03-19 15:40 +0100

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