Power consumption issue on suspend-to-idle(s2idle)
Bug #1693393 reported by
AceLan Kao
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| HWE Next |
Fix Released
|
Undecided
|
AceLan Kao | ||
| linux (Ubuntu) |
Fix Released
|
Undecided
|
AceLan Kao | ||
| Xenial |
Fix Released
|
Undecided
|
Unassigned | ||
Bug Description
The power consumption is pretty high(8Watt) during suspend-to-idle mode under Xenial.
1. It consumes 8Watt under 4.4 kernel
2. It consumes 4Watt under 4.8 kernel
3. It consumes 2Watt under 4.11 kernel
There are essential patches in 4.8 and 4.11 kernels, they are
In 4.8
9d26d3a PCI: Put PCIe ports into D3 during suspend
In 4.11
8d2c453 platform/x86: dell-laptop: Add Latitude 7480 and others to the DMI whitelist
We need these 2 commits to have better s2idle support.
| Changed in hwe-next: | |
| assignee: | nobody → AceLan Kao (acelankao) |
Revision history for this message
| AceLan Kao (acelankao) wrote | #1 |
| Changed in hwe-next: | |
| status: | New → In Progress |
| Changed in linux (Ubuntu Xenial): | |
| status: | New → In Progress |
| Changed in hwe-next: | |
| status: | In Progress → Fix Released |
| Changed in linux (Ubuntu): | |
| status: | In Progress → Fix Released |
| Changed in linux (Ubuntu Xenial): | |
| status: | In Progress → Fix Released |
To post a comment you must log in.
This commit is needed to fixed a issue introduced by 9d26d3a8f1b0 ("PCI: Put PCIe ports into D3 during suspend")
commit 035ee288ae7ade4
Author: Lukas Wunner <email address hidden>
Date: Tue Sep 6 06:20:46 2016 +0200
PCI: Fix bridge_d3 update on device removal