Comment 107 for bug 226279

As we are on suspend issues with some competent kernel people in this thread, another delay issue at suspend (depending on network interfaces/configuration, this can lead to >30sec delay with a black screen) could be considered.

A configuration ack can be done, but wired network modules could integrate a link-up check before trying to setup interfaces so that this issue could be solved in direct configurations as well as in every network managers.

See:
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/236066

It have been assigned to pm-utils by someone but to my mind this is really a kernel/network driver modules issue that clearly show at resume... but not only.

Regards