I've run across a bug report stating that in the 3.8 kernel, sleep mode is not supported on the beaglebone black. Is this still the case? If I need to use sleep mode, will I need to upgrade my kernel? If so, which kernel do I need?
Correct, use v3.14.x-ti (tested) or v4.1.x-ti (untested = i haven't
tested it yet)
Is suspend available on the BBB with software as below? If so, what
are the recommended ways ways to bring it to sleep and to wake it up?
root@beaglebone:~# uname -a
Linux beaglebone 4.1.10-bone16 #1 Sun Oct 4 08:00:05 UTC 2015 armv7l GNU/Linux
root@beaglebone:~# cat /etc/dogtag
BeagleBoard.org Debian Image 2015-09-13