0.90 and 0.91 are identical packages, so no, it isn't. It's likely that the issue only occasionally triggers.
** Changed in: acpi-support (Ubuntu) Status: Unconfirmed => Rejected -- kacpid-work eat 99% CPU after resuming from hibernate https://launchpad.net/bugs/56246 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs