Magna Techa
guides and thoughts on technology by Travis Reddell

Wake Ubuntu with USB mouse or keyboard

I tend to suspend my Ubuntu machine quite a bit. A three second wakeup is a lot faster than a 30 second boot and I can keep my windows open while the machine is asleep without using much more power than a fully shut down computer.

Instead of having to reach for a power button on my computer's case, I have set up Ubuntu to come out of suspend mode when I press any key on my keyboard. Here's how you do it.

First, you want to find check out your the devices that can wake your machine via acpi:

cat /proc/acpi/wakeup

which came back with this, for me:

So I issued the command

sudo sh -c 'echo "USBE" > /proc/acpi/wakeup'

I have seen some people use USB0 instead of USB0, but since it was not listed under wakeup devices by acpi, I used USBE. You can judge for yourself as to which you should use.

There you have it. Your machine should wake up when you press a key, given your keyboard is USB.

More posts that you might be interested in:
How to Install a Regular Gnome Desktop with Ubuntu 12.10
Using x11vnc with Ubuntu
Update Ubuntu from the Command Line
Fixing Black Screen Issue After Resuming Ubuntu 13.04
Reducing RAM Usage in Ubuntu
Setting up Eclipse on Ubuntu 12.04
Create an ISO image from a CD on Ubuntu
Moving from Ubuntu to Debian
Suspend Ubuntu without Sudo

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