Ubuntu has a great tool that can check to see if your machine supports Wake-on-LAN, and can enable it. Open up a terminal and install ethtool with the following command:
sudo apt-get install ethtool
You can check your compatibility by running:
sudo ethtool eth0
If your default interface is something else, substitute it for eth0 .
Look for the “Supports Wake-on” section. As long as one of the letters listed is g , you can use magic packets for Wake-on-LAN. To enable this option, use the following command.
sudo ethtool -s eth0 wol g
If your default interface is something else, substitute it for eth0 .
This should take care of it. You can run the command to check and see if it’s enabled now. Look for the “Wake on” section. You should see a g instead of a d now.