Actually it appears that one usb device was the source of the problem. It's not a common USB device so it's not likely worth fixing.
Bus 005 Device 003: ID 28f3:4000 Clover Network, Inc. Flex -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1941808 Title: AMD desktop fails to suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1941808/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
