** Changed in: linux (Ubuntu Mantic)
Status: New => Confirmed
** Changed in: linux (Ubuntu Mantic)
Assignee: Kai-Heng Feng (kaihengfeng) => (unassigned)
** Changed in: linux-oem-6.1 (Ubuntu Jammy)
Assignee: Kai-Heng Feng (kaihengfeng) => (unassigned)
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https://bugs.launchpad.net/bugs/2028122
Title:
Fix unreliable ethernet cable detection on I219 NIC
Status in HWE Next:
New
Status in linux package in Ubuntu:
Confirmed
Status in linux-oem-6.1 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Confirmed
Status in linux-oem-6.1 source package in Jammy:
Confirmed
Status in linux source package in Lunar:
Confirmed
Status in linux-oem-6.1 source package in Lunar:
Invalid
Status in linux source package in Mantic:
Confirmed
Status in linux-oem-6.1 source package in Mantic:
Invalid
Bug description:
[Impact]
Hotplugging RJ45 ethernet cable only works for one time because ACPI GPE
wake doesn't working properly anymore.
[Fix]
Always use PME poll to read PCI PME to know if there's wake event.
[Test]
With the patch applied, ethernet cable can always be detected.
[Where problems could occur]
PME poll mechanism periodically reads the PMCTRL register, so the power
consumption can be slightly higher. The increase will be very low,
probably won't be noticeable.
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