Ubuntu
powermgmt-base package

Disable wol when not needed to save power

Bug #224342 reported by Arthur
6
Affects Status Importance Assigned to Milestone
powermgmt-base (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

Hardy doesn't disable my network interface when suspending my Thinkpad X41. It stays active and uses power. This would be ok if I were listening for wakeup-on-lan (wol) packets which I'm not. Adding the line
/usr/sbin/ethtool -s eth0 wol d
at the beginning of the function suspend_nm() in /usr/lib/pm-utils/sleep.d/10NetworkManager resolves this problem. But that's probably not the right place to put it to and it would need some logic to determine whether wol is wanted or not.

Revision history for this message
Phillip Susi (psusi) wrote :

Whether wol is wanted or not is entirely up to you. If you enable it, then the interface will remain powered on in order to support it. Typically this is configured in the system bios.

Changed in powermgmt-base (Ubuntu):
status: New → Invalid
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