[SOLVED] Lenovo PCs Wake on LAN stopped working on newer kernels

rlees85 · 2015-10-02 11:32:50

I got a slightly annoying problem that I will need to report on the kernel bug tracker more than likely. I am just wondering if people here have any ideas of what log files or tests or anything I can do to support my bug report if/when I do need to make it.

I got two Lenovo systems, one is 5 years old and the other 1 years old. One is UEFI boot, has an on-board Intel NIC. The other is legacy BIOS boot, has an on-board Intel NIC also but a much older chipset. Both of these systems have "Wake-On-LAN" set to "Primary" in the BIOS (which translates to enabled).

Since Kernel 4.1.6 (and bug is still present in 4.2.1 and 4.2.2) the WOL is not working. This can be confirmed by the connection lights going out on the router when the PCs is switched off whereas before they used to remain connected at 10mb/ps. Obviously with the physical connection being down WOL fails.

Anyone else noticed this?
Any idea where to look before going ahead and posting a bug report?

Cheers !!

Last edited by rlees85 (2015-10-02 21:18:07)

ukhippo · 2015-10-02 13:09:23

Can't help specifically, but check https://wiki.archlinux.org/index.php/Wake-on-LAN
Check WOL is enabled in Arch, not just in the firmware. Check the journal to see if any error is logged on boot/shutdown.

rlees85 · 2015-10-02 14:08:55

Actually good point and thanks for the link. I am wondering if an update to NetworkManager has done this rather than the Kernel. I'll have a play and post back, thanks again

rlees85 · 2015-10-02 18:12:18

Yep... the NetworkManager part of the link you sent me sorted it. Specifically:

# nmcli c modify "wired1" 802-3-ethernet.wake-on-lan magic

Am guessing now that NetworkManager manages WOL too you have to specifically turn it on there too. Shame this cannot be done as a global default to all Ethernet connections.

ukhippo · 2015-10-02 20:02:10

Glad it was a simple fix. Don't forget to mark this thread "[SOLVED]"

Arch Linux

#1 2015-10-02 11:32:50

[SOLVED] Lenovo PCs Wake on LAN stopped working on newer kernels

#2 2015-10-02 13:09:23

Re: [SOLVED] Lenovo PCs Wake on LAN stopped working on newer kernels

#3 2015-10-02 14:08:55

Re: [SOLVED] Lenovo PCs Wake on LAN stopped working on newer kernels

#4 2015-10-02 18:12:18

Re: [SOLVED] Lenovo PCs Wake on LAN stopped working on newer kernels

#5 2015-10-02 20:02:10

Re: [SOLVED] Lenovo PCs Wake on LAN stopped working on newer kernels

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