Arch Linux

smayer

Member

Registered: 2010-08-07

Posts: 13

Wake up on lan my X40 thinkpad (Intel 82541GI)

Hi,

since a week or two I can't boot my laptop over LAN. But only if I booted arch before - if I don't boot arch (i.e. just boot BIOS and turn it off afterwards) it just works as expected. WOL is enabled in BIOS and in arch:

host@~ # cat  /sys/class/net/eth0/device/power/wakeup
enabled
host@~ # ethtool eth0
Settings for eth0:
	Supported ports: [ TP ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Supported pause frame use: No
	Supports auto-negotiation: Yes
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Advertised pause frame use: No
	Advertised auto-negotiation: Yes
	Speed: 1000Mb/s
	Duplex: Full
	Port: Twisted Pair
	PHYAD: 0
	Transceiver: internal
	Auto-negotiation: on
	MDI-X: Unknown
	Supports Wake-on: umbg
	Wake-on: g
	Current message level: 0x00000007 (7)
			       drv probe link
	Link detected: yes

My network controller is an Intel 82541GI. When I boot my laptop with the lts kernel and shut it down it re-boots instantly if a lan cable is connected. But if none is connected the machine halts as expected - and boots again when I connect the LAN cable or press power....

So something in between would be great which let's the laptop just boot if I send the magic package.... as it was a few weeks ago.

Best,
Johannes

PS: Kernel version (3.2.6-2) If you need more details feel free to ask.

smayer

Member

Registered: 2010-08-07

Posts: 13

Re: Wake up on lan my X40 thinkpad (Intel 82541GI)

Just to conclude if somebody finds this thread later:

There seems to be a problem with WOL/Kernel 3.2.X and maybe the Intel 82541GI driver.... if i use a 3.1.x or an older Kernel (like lts) WOL just works fine. The problem with the instant reboot was because of this line:
ethtool -s eth0 wol umbg
in /etc/rc.local.shutdown which I've added for debugging and forgotten about....