Bug 56621

Summary:	Intel 82579LM Gigabit Network adapter deactivated on boot, has to be activated separately
Product:	Drivers	Reporter:	Harvey (harv)
Component:	Network	Assignee:	drivers_network (drivers_network)
Status:	CLOSED CODE_FIX
Severity:	normal	CC:	alan, com, george.angel.87, harv
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	3.8.x	Subsystem:
Regression:	No	Bisected commit-id:

Description Harvey 2013-04-15 06:56:50 UTC

I have a Fujitsu Laptop E751 vPro. According to lspci the network adapter is:
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
The kernel uses e1000e as the kernel driver.
When I boot my latop with kernel 3.8.7 and a network cable plugged in, the Adaper is down. 'Ip addr show' says:
4: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN qlen 1000
link/ether 5c:9a:d8:e7:c1:c8 brd ff:ff:ff:ff:ff:ff
I googled around a bit and found that e1000e had some bugs in the past, but all should be fixed now.
Issuing 'echo on > /sys/bus/pci/devices/0000\:00\:19.0/power/control' on a shell gets the adapter up and working without problems. All other mentioned things do not work. Unplugging and replugging, sending system to standby and waking it again a.s.o.

Comment 1 Christophe Morvan 2013-04-29 11:03:24 UTC

I am experiencing a similar bug on my lenovo x230.
(I did since 3.8.3, and in 3.8.6 -- from kernel.org)

It happen *after* resuming *and* when AC is not plugged in.

Plugging the AC in or performing the line 'echo on > /sys/bus/pci/devices/0000\:00\:19.0/power/control' resume to nominal performance.

Comment 2 Christophe Morvan 2013-04-29 11:06:17 UTC

It is most probably related to bug 56611:

https://bugzilla.kernel.org/show_bug.cgi?id=56611

Comment 3 Christophe Morvan 2013-05-01 09:37:03 UTC

This bug is corrected in kernel 3.9.0
(Maybe earlier)

Comment 4 Harvey 2013-05-01 11:17:48 UTC

For me its corrected with 3.9.0