This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:
apport-collect 1836031
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1836031
Title:
[SRU][B/B-OEM]Fix resume failure on some TPM chips
Status in HWE Next:
New
Status in linux package in Ubuntu:
Incomplete
Bug description:
SRU justification:
[Impact]
System will reboot when resume from S3 with some TPM chips installed.
[Fix]
stable patch is merged in 4.15 kernel:
888d867df441 (tpm: cmd_ready command can be issued only after granting
locality)
it needs a fix:
tpm: separate cmd_ready/go_idle from runtime_pm
these 2 patches fix the issue and enable tpm resume
after seprating cmd_ready/go_idle.
[Test]
Verified on hardware. resume from S3 about 30 times with positive result.
[Regression Potential]
Medium, stable patches backported. Verified on hardware.
backported with minor adjustion.
These 2 patches are included in 4.18 and 5.0 kernel, only 4.15 needs
them.
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