Thanks for your help. I did what you suggested. Here is the result.
** Attachment added: "dmesg1" https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1675683/+attachment/4865383/+files/dmesg1 ** Changed in: pm-utils (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1675683 Title: Computer sluggish/irresponsive for several minutes after hibernation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1675683/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
