Update: The nsc/irda update [0] appears to cause this issue; it can be worked around via acpi-support.
[0] http://www.kernel.org/git/?p=linux/kernel/git/bcollins/ubuntu- dapper.git;a=commit;h=c0aff2d0dcf910e440b49087cf118d3cccb10fe3 ** Changed in: linux-source-2.6.15 (Ubuntu) Status: Confirmed => In Progress -- [regression] Suspend [to-RAM and to-disk] is broken in 2.6.15-25.43 https://launchpad.net/bugs/50031 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs