Ok, I figured out that the reason is because powersaved is not started. When I do invoke-rc.d powernowd start It complains:
* Starting power management daemon powersaved [fail] ########################################################## # ACPI system but acpid not running. # # Please install acpid package, then restart powersaved! # ########################################################## invoke-rc.d: initscript powersaved, action "start" failed. /var/lib/dpkg/info/powersaved.postinst: 11: check_return_code: not found Manually starting acpid and then powersaved fixes it... -- Suspend broken in edgy (worked in dapper) https://launchpad.net/bugs/66337 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs