I am able to reproduce the shutdown problem (USB peripherals and trackpad work though) on a T43 with kernel 2.6.31-7-generic. I tried the 2.6.28-15-generic kernel and did not encounter this issue.
This appears fixed on the 2.6.31-8-generic kernel.
I am able to reproduce the shutdown problem (USB peripherals and trackpad work though) on a T43 with kernel 2.6.31-7-generic. I tried the 2.6.28-15-generic kernel and did not encounter this issue.
This appears fixed on the 2.6.31-8-generic kernel.