[Bug 88012] [bisected BYT] complete freeze after: drm/i915/vlv: WA for Turbo and RC6 to work together

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88012

Daniel Vetter <daniel at ffwll.ch> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |MOVED

--- Comment #126 from Daniel Vetter <daniel at ffwll.ch> ---
(In reply to Chris Rainey from comment #119)
> Confirming that "intel_idle.max_cstate=1" has solved my complete freeze
> issues on Bay Trail running Linux 4.1.13(Slackware64-current(pre-4.2)
> formerly running Ubuntu 15.04/15.10 with stock kernels).
> 
> Thanx for all the hard-work and long-efforts to see this through!

Hm, sounds like after over a year of random walking multiple people have nailed
this to cpu cstates, and the gpu driver changing behaviour slightly was just
the canary in the coal mine here.

I tried to read through all comments here (gosh is there a lot of that) and
didn't find anything to contradict that.

Given that I filed a new bug report on bugzilla.kernel.org:

https://bugzilla.kernel.org/show_bug.cgi?id=109051

Everyone please jump over there to that bug and fill in with your
details/summary.

Thanks, Daniel

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