WOL in the BIOS causes power ups after shutdown

Message

graysky · Post by **graysky** » Mon Feb 03, 2014 8:45 pm

In order to support WOL, my Asus H87I-Plus requires an option set in the BIOS (Onboard>APM>Power on by PCIE). When I have this enabled, I can indeed start the machine using the wol magic packet, but there is an undesired side-effect: when I shutdown the machine, it stays shut off for about 5 sec and then turns back on all by itself. If I disable the option in the BIOS, this does not happen... but I am unable to use wol.

Anyone run into this issue before?

Code: Select all

% sudo ethtool eno1
Settings for eno1:
	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: 2
	Transceiver: internal
	Auto-negotiation: on
	MDI-X: on (auto)
	Supports Wake-on: pumbg
	Wake-on: g
	Current message level: 0x00000007 (7)
			       drv probe link
	Link detected: yes

niick · Post by **niick** » Mon Feb 03, 2014 10:04 pm

I've got the same issue with a Gigabyte Z87X-D3H, had to turn wol off in the bios as well. I'm not sure if it's a kernel/driver issue or a bios one. The computer dual boots with win7 and that doesn't show the same problem.

graysky · Post by **graysky** » Mon Feb 03, 2014 11:15 pm

Thanks for the reply. Seems to me that if win7 can shutdown cleanly, but Linux cannot that the problem must lie there... what is your init system?

roarinelk · Post by **roarinelk** » Tue Feb 04, 2014 7:42 am

tons of recent intel motherboards have the same problem (including one of mine). Looks like a BIOS/EFI problem.

graysky · Post by **graysky** » Tue Feb 04, 2014 9:20 pm

Great

The Asus techs with whom I have corresponded barely speak English. Looks like this problem will never get to the people it needs to for a fix.

Post by Hu » Wed Feb 05, 2014 2:02 am

If this does affect a significant number of motherboards, there is a good chance that it will soon affect hardware in the possession of a kernel developer or other power user who can assist the kernel developers in pursuing a fix.

niick · Post by **niick** » Thu Feb 06, 2014 8:54 pm

graysky wrote:what is your init system?

I'm using openrc-0.12.4.

It's reassuring to hear we're not alone on this. Guessing part of the issue is the relative newness of UEFI, it's the first time I've had it on a board.

graysky · Post by **graysky** » Wed Feb 26, 2014 7:43 pm

Booting into windows 7 and then shutting down from there does not exhibit this behavior. It seems to be something unique to Linux...

graysky · Post by **graysky** » Sun Jul 05, 2015 12:34 pm

An update: this is a BIOS bug but there is a work-around. I have been testing several systems (Z77 and H97-based) after I disabled all references to 'xHCI' as it pertains to USB settings[1]. I also enabled wake on keyboard[2]. And finally, I disabled EuP 2013 which affects wattage in power off mode. For over 2 months now, I haven't observed an unintentional wake-up with 'wake on PCIe' enabled in the BIOS.

1a. https://communities.intel.com/message/168708
1b. https://github.com/torvalds/linux/commi ... d644fa7a42
2. http://serverfault.com/questions/349898 ... nt-reboots