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:
azitech.wordpress.com/2008/11/27/usbcore-autosuspend/
ubuntuforums.org/showthread.php?t=1968487
askubuntu.com/questions/165050/usb-wake-not-working-correctly
www.ehow.com/how_7536984_configure-power-usb-ubuntu.html
www.linuxforums.org/forum/miscellaneous/98253-turn-off-power-usb-port.html
www.linuxquestions.org/questions/linux-software-2/howdoi-turn-on-off-usb-light-by-time-514863/
www.linuxquestions.org/questions/debian-26/power-off-usb-509328/
ubuntuforums.org/showthread.php?t=853179
ubuntuforums.org/showthread.php?t=1446965
The USB PwrMan doc: http://www.mjmwired.net/kernel/Documentation/usb/power-management.txt
Unfortunately, none offer a solution for me.
All my /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.
cat /proc/acpi/wakeup
EHC1 S3 *enabled
EHC2 S3 *enabled
Is there another way to disable USB wakeup?
