Intel e1000e blocks the system to enter PC10 on TGL platform
Affects | Status | Importance | Assigned to | Milestone | ||
---|---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | |||
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | |||
Focal |
Invalid
|
Undecided
|
Unassigned | |||
Hirsute |
Fix Released
|
Undecided
|
AceLan Kao | |||
Impish |
Invalid
|
Undecided
|
Unassigned | |||
linux-oem-5.10 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | |||
Focal |
Fix Released
|
Undecided
|
AceLan Kao | |||
Hirsute |
Invalid
|
Undecided
|
Unassigned | |||
Impish |
Invalid
|
Undecided
|
Unassigned | |||
linux-oem-5.13 (Ubuntu) | ||||||
Focal |
Invalid
|
Undecided
|
Unassigned | |||
Hirsute |
Invalid
|
Undecided
|
Unassigned | |||
Impish |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
The deepest package cstate is PC9 and fails to enter low power mode during s2i on Tiger Lake platform.
[Fix]
Intel provides a fix for TGL platform
https:/
[Test]
Verified on Dell TGL platforms and it works as expected.
[Where problem could occur]
It actually adds a quirk for tgl platform to ignore Latency Tolerance Reporting (LTR) in pmc_core driver, that makes GBE on TGL won't block the system to enter deeper PC state. It should be safe for all TGL platforms.
[Misc]
Currently, this commit is not accepted and a v2 is expected. So, submit this commit to oem kernel only and will revert it and submit final version of this patch to ubuntu kernels later.
Changed in linux-oem-5.10 (Ubuntu Focal): | |
assignee: | nobody → AceLan Kao (acelankao) |
Changed in linux-oem-5.10 (Ubuntu): | |
status: | New → Invalid |
tags: | added: oem-priority originate-from-1913281 somerville |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | New → In Progress |
description: | updated |
description: | updated |
summary: |
- Intel e1000e blocks the system to enter PC10 + Intel e1000e blocks the system to enter PC10 on TGL platform |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | In Progress → Fix Committed |
tags: |
added: verification-done-focal removed: verification-needed-focal |
Changed in linux-oem-5.13 (Ubuntu Impish): | |
status: | New → Invalid |
Changed in linux (Ubuntu Hirsute): | |
assignee: | nobody → AceLan Kao (acelankao) |
Changed in linux-oem-5.10 (Ubuntu Hirsute): | |
status: | New → Invalid |
no longer affects: | linux-oem-5.13 (Ubuntu) |
Changed in linux-oem-5.13 (Ubuntu Hirsute): | |
status: | New → Invalid |
Changed in hwe-next: | |
status: | New → Fix Released |
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- focal' to 'verification- done-focal' . If the problem still exists, change the tag 'verification- needed- focal' to 'verification- failed- focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Thank you!