For a few days, my Ubuntu 12.04 desktop computer has mysteriously been waking up immediately after going to suspend mode.
Since installation, my Ubuntu 12.10 laptop computer has also been resuming immediately after suspend and hibernation.
How to prevent those?
Best Answer
This problem was probably caused by strange USB signals.
gedit /proc/acpi/wakeup
showed me, that wakeup was enabled for USB0 and USB2.switched them to disabled (checked by
gedit /proc/acpi/wakeup
again or refreshing the file-view), and after that, the computer stays in suspend like it should. :-)