[Bug 73971] Intel i915 screen remains blank when resuming from suspend

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=73971

--- Comment #3 from Alan Bartlett <ajb at elrepo.org> ---
(In reply to Denis Leclair from comment #2)
> I'm not sure if it's a regression or not. I have two data points:
>    - 2.6.32-431.11.2.el6.x86_64
>    - 3.14.0-1.el6.elrepo.x86_64
> 
> In both cases the behavior is identical.
> 
> Can you suggest a range of kernel versions that you would like me to try?
> 
> And again, I just want to reiterate so we're clear, I believe the machine is
> coming up ok from resume with the exception that I can't see anything on the
> display. The failure to resume seems to be limited to the video (as near as
> I can tell).

(1) A kernel-ml-3.14.0-2.drm_intel_fixes_2014_04_11.el6.elrepo rpmpackage set
is now available to download from
http://elrepo.org/people/ajb/devel/kernel-testing/el6/  Please test and then
report back to Daniel if it fixes/does not fix the WARNING/backtrace.

(2) Please choose a convenient ELRepo Project mirror site [1] that carries the
archive. From the kernel archive, select the earliest kernel-ml package that is
available. Test for resume failure - ACK/NACK. If the earliest kernel-ml does
resume correctly, perform a classic binary chop to determine the last working
and first that fails. If the earliest kernel-ml does not resume correctly, try
with the earliest kernel-lt package that is available. 

[1] http://elrepo.org/tiki/Download

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