Public bug reported:
[Impact]
The r8169 driver disables the ASPM on old Realtek NIC chips, because on some
platforms it may lead to the network speed or the system stability issue.
But disable ASPM leads to the system can't enter deeper sleep mode which leads
to power consumption issue and can't pass Energy Start 8/9.
[Fix]
Added the verified machines to the r8169 ASPM quirk to enable the ASPM.
We've been requesting a solution from Realtek for a long time, but they
still haven't provided one. As a result, we have no choice but to
continue adding machines to the quirk.
[Test]
Boot up and check the device by lspci -vvnn
2b:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller
[10ec:8168] (rev 15)
Capabilities: [178 v1] L1 PM Substates
L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+
L1_PM_Substates+
PortCommonModeRestoreTime=150us PortTPowerOnTime=150us
L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1-
T_CommonMode=0us LTR1.2_Threshold=306176ns
The L1SubCtl1 shows "PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1-" means
those features are disabled.
With the patches kernel, it shows
L1SubCtl1: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+
T_CommonMode=0us LTR1.2_Threshold=306176ns
[Where problems could occur]
The Realtek NIC ASPM issue is well-known and enabling it can lead to various
problems. Both we and the ODM have extensively tested these platforms, but
there is still a small chance that unexpected issues may occur.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: AceLan Kao (acelankao)
Status: In Progress
** Affects: linux-oem-6.11 (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Noble)
Importance: Undecided
Assignee: AceLan Kao (acelankao)
Status: In Progress
** Affects: linux-oem-6.11 (Ubuntu Noble)
Importance: Undecided
Assignee: AceLan Kao (acelankao)
Status: In Progress
** Affects: linux (Ubuntu Oracular)
Importance: Undecided
Assignee: AceLan Kao (acelankao)
Status: In Progress
** Affects: linux-oem-6.11 (Ubuntu Oracular)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Plucky)
Importance: Undecided
Assignee: AceLan Kao (acelankao)
Status: In Progress
** Affects: linux-oem-6.11 (Ubuntu Plucky)
Importance: Undecided
Status: Invalid
** Also affects: linux-oem-6.11 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Oracular)
Importance: Undecided
Status: New
** Also affects: linux-oem-6.11 (Ubuntu Oracular)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Plucky)
Importance: Undecided
Status: New
** Also affects: linux-oem-6.11 (Ubuntu Plucky)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Noble)
Importance: Undecided
Status: New
** Also affects: linux-oem-6.11 (Ubuntu Noble)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Noble)
Assignee: (unassigned) => AceLan Kao (acelankao)
** Changed in: linux (Ubuntu Oracular)
Assignee: (unassigned) => AceLan Kao (acelankao)
** Changed in: linux (Ubuntu Plucky)
Assignee: (unassigned) => AceLan Kao (acelankao)
** Changed in: linux-oem-6.11 (Ubuntu Noble)
Assignee: (unassigned) => AceLan Kao (acelankao)
** Changed in: linux-oem-6.11 (Ubuntu Oracular)
Status: New => Invalid
** Changed in: linux-oem-6.11 (Ubuntu Plucky)
Status: New => Invalid
** Changed in: linux-oem-6.11 (Ubuntu Noble)
Status: New => In Progress
** Changed in: linux (Ubuntu Plucky)
Status: New => In Progress
** Changed in: linux (Ubuntu Oracular)
Status: New => In Progress
** Changed in: linux (Ubuntu Noble)
Status: New => In Progress
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https://bugs.launchpad.net/bugs/2085398
Title:
The ASPM is disabled on Realtek NIC which prevents the system from
entering s0ix
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