[SRU] [X/B/C/D/Unstable] [PATCH 0/1] Fix Intel I210 doesn't work when ethernet cable gets plugged

Kai-Heng Feng kai.heng.feng at canonical.com
Wed Dec 5 06:16:04 UTC 2018

BugLink: https://bugs.launchpad.net/bugs/1806818

Plugging ethernet cable cannot wake up Intel I210 when it's runtime
suspended. It's because the PME is not enabled.

PCI core doesn't enable PME because the driver explicitly saves its PCI
state before runtime suspend routine. Don't save PCI state fixes the

PME is correctly enabled, and cable plugging starts to work.

[Regression Potential]
Minimal. The fix limits to on device, and it's specific to runtime power
management. Other functionalities are not affected.

Kai-Heng Feng (1):
  igb: Fix an issue that PME is not enabled during runtime suspend

 drivers/net/ethernet/intel/igb/igb_main.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)


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