Just to be sure, the USB devices are powered off after shutdown if you boot the previous kernel (3.0.0-15.26 I believe - please add 'uname -a' from that kernel)?
The bug is probably caused by http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-oneiric.git;a=commit;h=7e980c78fa44e640e5f97fef2a7e67f3362cc32c - this patch was part of the latest kernel update (to -16.28).
Just to be sure, the USB devices are powered off after shutdown if you boot the previous kernel (3.0.0-15.26 I believe - please add 'uname -a' from that kernel)?
The bug is probably caused by http:// kernel. ubuntu. com/git? p=ubuntu/ ubuntu- oneiric. git;a=commit; h=7e980c78fa44e 640e5f97fef2a7e 67f3362cc32c - this patch was part of the latest kernel update (to -16.28).