Bug#659363: Hibernate freezes on HP dc7900 with Linux 3.2 (regression)

[Per Olofsson <pelle@dsv.su.se>]

Hi again,

2012-03-12 17:24, Per Olofsson skrev:
> Thanks for the hints! It is a bit time-consuming to debug because the
> problem does not happen every time I hibernate. However, it does happen
> often enough.
> 
> I will try the debug steps and report back the results. Since suspend to
> RAM works fine, I'm guessing that it has something to do with writing
> the image to disk. Perhaps ACPI is interacting badly with the SATA
> driver or so.

I have now tried some debugging steps, but I can't get the system to
freeze with the debugging modes. It probably needs to actually try to
write the image to disk in order to hit the bug.

Here is the same bug in Fedora:

https://bugzilla.redhat.com/show_bug.cgi?id=785384

Perhaps, as you said, it has something to do with i915 after all. I will
dig further.

-- 
Pelle