With the update from 11.04 to 12.04, my USB keyboard activity will wake Ubuntu from 'suspend'. I'd like to disable this. (My battery went dead due to some unexpected keyboard activity.) This didn't happen in 11.04.
These links talk about USB power ctrl:
The USB PwrMan doc: http://www.mjmwired.net/kernel/Documentation/usb/power-management.txt
Unfortunately, none offer a solution for me.
/sys/bus/usb/devices/usbx/wakeup are set to disable. When you get the actual device, those are set to enabled, and are not editable.
EHC1 S3 *enabled
EHC2 S3 *enabled
Is there another way to disable USB wakeup?