I noticed yesterday that I can accelerate the resume process if I keep
pressing keys (e.g., Alt) and sliding my finger on the mouse pad as if I
were using the mouse. If I do that continuosly after pressing the power
button, resume happens in 10 to 15 seconds. Still, the machine works
quite sluggishly for a few minutes after resume. Observing this sluggish
behavior more carefully, I looks as if the system would block or freeze
regularly, and that moving the mouse (mouse pad or external USB) or
using the keyboard unblocks it. For example, compiz animations are
sluggish, but if I trigger the animation and keep moving the mouse, the
animation runs smoothly.
This seems to be related to the resume problem: in both cases, the
kernel seems to block waiting for input (interruptions?) to arrive. As
long as I keep the input coming, things sort of run. Unfortunately, none
of my attempts to find reports of similar problems on the Internet has
yielded any possitive results so far. I would really appreciate more
information.
In a final note, I started the machine today with the current Gutsy
kernel (2.6.22-14) and although it breaks a few things in Hardy, it
manages to suspend and resume the machine correctly and very quickly.
This points once again to a problem in the kernel, and not in other
components, such as the new pm-utils.
** Also affects: linux-source-2.6.24 (Ubuntu)
Importance: Undecided
Status: New
** Tags added: hardy regression
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[Hardy][Regression] HP/Compaq nc6220: Resume fails after suspend to RAM
https://bugs.launchpad.net/bugs/215577
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