[Intel-gfx] [PATCH] drm/i915: drm locks up when connecting laptop to docking station

[Daniel Vetter]

On Wed, Apr 08, 2015 at 10:38:40AM +0200, Nicolas Kalkhof wrote:
> > Which branch are you exactly using - we added calls to this function in
> > i915 only for the 4.1 -next branch, but you claim that you're running
> > 4.0-rc kernels ...
> > -Daniel
> 
> I'm using the latest drm-intel-nightly from
> git://anongit.freedesktop.org/drm-intel. I've observed ths issue at some
> point after merging 4.0-rc4 into drm-intel-nightly (sorry don't remember
> a date or specific commit) and my machine still locks up with current
> drm-intel-nightly git. 

Ah yeah that makes more sense. Can you try to bisect this? If you don't
know a solid baseline commit just try latest 4.0-rc git and if that's good
use that as the bisect starting point. That way you only need to bisect
the i915 commits on top for 4.1, which isn't all that much. If that
doesn't work go back in the rc release tags until you find something
working.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch